PROTERIALCOMPANY PROFILE

Toyosu Prime Square, 5-6-36 Toyosu, Koto-ku, Tokyo 135-0061, Japan

Safety Precaution
Before using any of the products introduced in this catalog,
please read the respective user manuals thoroughly.
The contents of this catalog are subject to change without prior notice.

This Company profile is printed on FSC® certified paperfor environmentally friendly printing.

Catalog No. PCC-01EN-202407T
All rights reserved.
Printed in July 2024
, PROTERIAL, Proterial, DAC-i, DAC-X, SLD, Shirogami, Kigami, Aogami, Gingami,ATS, ZMG, ADMUSTER, HINEX, H-ALOY, YPT, HNM, NMS, HERCUNITE, NEOMAX, NMF,
HIDENSE, Acc-max, FINEMET, FMSHIELD, MaDC-A, MaDC-F, Hi-LoDe Lap, Hi-LoDe Epi, MLFC,
Primestar are registered trademarks or trademarks of Proterial, Ltd.
Metglas is trademark of Metglas, Inc.

Company Profile

Our PromiseProterial produces world-class, high-performance materials
for mobility, industrial infrastructure, and electronics.
Since 1910, weʼve brought together specialists of all kinds
to improve our skills and technologies, reflecting ourcommitment to achieve the best possible quality
in everything we do. Moving forward, weʼll continue toelevate both our products and the processes and people
that define them.
Only by conducting all our activities with unfaltering integrity
can we meet the expectations and trust of the communities
we serve. By creating new and ongoing value, weʼll help
customers realize innovation and contribute toa sustainable society.
With our professional determination, progressive intent,
and proactive approach, weʼll strive unceasingly to provide
exceptional materials that pave the way to a brighter future.

INDEX

01

Corporate Philosophy / The Thinking Behind our Company Name

03

History

05

Proterialʼs Business Structure and Portfolio

07

Automobile-related Field

09

Industrial Infrastructure-related Field

23

Electronics-related Field

39

Major Operation Bases

45

02

Corporate Philosophy / The Thinking Behind our Company Name

Corporate Philosophy

The Thinking Behind our Company Name

MissionMake the best quality available to everyone

質の量産

Striving for the highest standards in our original

独創的な技術と、製品・ビジネスプロセス・人に

technologies, products, processes, and people,

関する高い質の追求によって、新たな価値を

we will bring new levels of value to customers

生み出し、世界の人々に広く提供していく

all around the world.

VisionLeading sustainability by high performance

持続可能な社会を支える高機能材料会社

Through the creation of best-in-class materials,

お客さまの課題を解決する高機能材料のto be a company that solves individual customer

創造によって、持続可能な社会の実現に

issues and contributes to the prosperity and

貢献し続ける企業となる

vitality of all.

“Proterial” reflects the essence of our Corporate Philosophy.

It combines “pro-” with the word “material.”“Pro-” represents our “three pros”:
・ Professional – work that exceeds expectations
・ Progressive – a spirit that keeps challenging
・ Proactive – an enterprising attitude“Material” refers to the high-performance materials that our

Values03

original technologies produce and underpinned by the three pros.

Unfaltering integrity

至誠

We earn the trust of our customers and other

人や社会に対する責任を常に自覚し、With our focus on solving customer issues and bringing new

stakeholders by being honest and sincere

日々のあらゆる活動に誠実に向き合う。

levels of value, we promise to contribute to the realization of ain our daily activities and by understanding

約束を守る、正直に行動することを徹底し、our obligation to the people and communities we serve.

私たちに関わる全ての人々の信頼と期待に応える

sustainable society through the products and services that embody

United by respect龢則彊

Across our organization, we respect diversity

多様な個を尊重し、主体性をもって自由に

and the free and independent exchange

意見を交わし合い、学び合い、共通の目的に

our philosophy.

和すれば強しof opinions, learn from each other, and向けてチーム全員の情熱と能力を結集する

collaborate to achieve our common goal.

ことで成果を出す

Our logo uses a typeface that expresses simplicity, power, and dignity.
Its navy blue treatment suggests calmness and depth.

04

History

History
Over our more than 100-year history, the Proterial Group has continued to grow through a succession ofmergers and acquisitions. Through thisprocess, we created the diverse technologies, products, and business portfolios that are the source of ourcompetitiveness, and this diversity is theembodiment of “Proterialʼs uniqueness.” Operating in the field of materials, which is undergoing drastic

technological change, we will build on andstrengthen the diversity that we have cultivated throughout our history, to continue to be a company that is

indispensable to customers and society.

Unpaku Steel

1899

1990

1916

Yasugi Steel
Manufacturing

1922

Kizugawa
Manufacturing

1963 Sumitomo Special Metals

2004

1934

Tobata Foundry

1935

Kokusan Industries

1956

Hitachi Metals Industries

1967

1995
Nippon Ferrite

1990

Hitachi Ferrite

Teikoku Foundry Co.

1937 Merger

1956

Tobata Foundry

Hitachi Metals Industries

1995

2013

2016

2018

Santoku

Hitachi Cable
2005

1956

2023

Honeywell International Inc.ʼsMetglas™ division

Hitachi

Hitachi Ferrite

2007 NEOMAXHTP-Meds

2014

Hitachi Metals MMC
Superalloy

Only major events are shown on the timeline. (As of July 2024)

2023 Proterial

At a time when a modernizing Japan relied on imports for

Hitachi transferred its metals business with five originally

Merged with Hitachi Ferrite in 1995 to strengthen the soft

Established through the merger of the magnetic materials

almost all of its industrial goods, Yoshisuke Ayukawa

Tobata Foundry plants (Tobata, Fukagawa, Kuwana,magnetic materials business in response to increased

and applications operations of Hitachi Metals andMade MMC Superalloy, with extensive experience andcreation of best-in-class materials, to be a company that

acquired malleable cast iron manufacturing technology

Wakamatsu, and Yasugi) to establish Hitachi Metals

demand for noise reduction in automobiles and electronics.

Sumitomo Special Metals to manufacturetechnological capabilities in aircraft parts, a subsidiarysolves individual customer issues and contributes to theand established Tobata Foundry, the predecessor of ourIndustries.

high-performance neodymium magnets and ferrite

with a view toward global growth in core industries

prosperity and vitality of all.

magnets widely used in motors for automotive equipment

including aircraft and energy. Hitachi Metalsʼ Okegawa

and home appliances. With demand for automotive-use

Works established in April 2018.

company. In 1912, the company began manufacturing

Hitachi Metals

2003 Honeywell International Inc.ʼsMetglas™ division

Gourd brand-black heart malleable cast iron pipe joints.

1967

The company later began to produce products for other

Hitachi Metals Industries changed its name to Hitachi

Acquired the MetglasTM (amorphous metal materials)

motors expected to grow, the merger was carried out inuses including shipbuilding, railways, and spinning

Metals. Through creative monozukuri and proactive

division of Honeywell International of the United States.

2007 to integrate the magnetic materials businesses and2016

machines, and orders grew steadily as the superior quality

mergers and acquisitions, the Company went through aStrengthened the soft magnetic materials division as

increase synergies.

In line with the aim of strengthening our operations in theof these products was recognized. Business areas weresuccession of changes and grew to become one of thedemand in the electronics segment grew for size anddiversified through mergers with Teikoku Foundry, whichworldʼs leading materials manufacturers. Today, theweight reductions, energy conservation, andat the time was producing steel for steel rolling, Kizugawa

Company provides technologies and services that areelectromagnetic noise reduction.

Manufacturing, a producer of fittings, and steelmaker
Yasugi Steel Manufacturing.

1935

Kokusan Industries

As the business expanded to cover heavy industries in

05

2003

2000

Spin off

2018

2007

Hitachi Metals

1949 Santoku Metals Industry

1910

Hitachi Metals
MMC Superalloy

NEOMAX

2004

1954

1910

2014

Sumitomo Metal Industries

1926
1917

MMC Superalloy

2010

1926
1910

Mitsubishi Materials

2013

Hitachi Cable

Hitachi Metals changed its name to Proterial. Through the

HTP-Meds

medical field and achieving medium- to long-term global
growth, HTP-Meds was made a subsidiary. An operator of

Merged with Hitachi Cable, the Hitachi Groupʼs electric

the medical tubing business in the U.S., the company wascontributing to the shift in automobiles to electric

wires and cable business, in 2013. As the pace ofmerged with Hitachi Cable America in April 2018.

vehicles, and advances in industry, infrastructure, andmovement toward a low-carbon society accelerated, theelectronics around the world.

merger was intended to create synergies in terms of2018

technologies and sales in the automotive, electronics, andSantoku became a consolidated subsidiary of Hitachiindustrial infrastructure segments.

Metals as an effort to strengthen our production system

Santoku

general, Tobata Foundry changed its name to Kokusan

for neodymium magnets and to optimize the material flow

Industries.

from raw materials to finished products.

06

Proterialʼs Business Structure and Portfolio

Proterialʼs Business Structure and Portfolio
The Proterial Group is a material manufacturer with highly competitive core technologies forhigh-performance materials. With the worldʼs top brands in its portfolio, Proterial engages in a broad
range of businesses in the markets related to industrial infrastructure, automobiles, and electronics.

Automobile-related Field

Industrial Infrastructure-related Field

Electronics-related Field

Specialty Steel
Molds and tool steel, Automobile-related materials, Razor and blade
materials, Precision cast components, and Aircraft- andenergy-related materials, Display-related materials, Semiconductor
and other package materials, and Battery-related materials

Specialty SteelCVT Belt Materials

DAC-iTM the
Next-generation
Hot Working
Tool Steel

Turbine Case

Clad Materials

Lead Frame Materials

Roll
Rolls for steel mills, Injection molding machine parts, Structural
ceramic products, and Steel-frame joints for construction

Roll
HINEXTM Rolls for Iron
and Steel Rolling

Cylinders and Screws for
Plastic Molding Machines

Automotive Casting
HNMTM high-grade ductile cast iron products, Cast
iron products for transportation equipment,
HERCUNITE™ heat-resistant exhaust casting
components, and Aluminum components

Automotive Casting
High-toughness Ductile
Cast Iron Products

HERCUNITETM Seriesof Heat-Resistant Cast Components

Magnetic Materials

Magnetic Materials

NEOMAX® rare-earth magnets, Ferrite magnets, andOther magnets and applied products

Ferrite Magnets NMFTM Series

Neodymium Magnets
NEOMAX® Series

Power Electronics Materials

Power Electronics Materials

Soft magnetic materials (MetglasTM amorphous metals; FINEMET®
nanocrystalline magnetic material; and soft ferrite) and applied
products, and Ceramiccomponents

FINEMET®
Nanocrystalline
Magnetic Alloys

Electric Wire & Cable

Soft Ferrite Cores

Electric Wire & Cable

Industrial cables, Electronic wires, Electric equipment materials, andCable assemblies
Wires and Cables for Rolling Stock

Automotive Components

Industrial Robot Cables

Automotive Components

Electronic components for automotive, and Brake
hoses
Harness for Electric Parking Brakes

07

08

AUTOMOBIL

Automobile-related Field
Proliferating eco cars and improving fuel economy
and safety performance― We appropriately capture changes in environmental

performance required for automobiles,
thus relentlessly pursuing the evolution of all of our products.
Ranging from drive motor components and exhaust systemcomponents to chassis components― We use our development and technological capabilities

to support automobile manufacturing around the world.

Related link

09

10

Automobile-related FieldxEV (for Motor)
Our magnets, soft magnetic components and materials, enameled wires,and other unique products support the evolution of xEV motors.

Drive Motor for EV

Neodymium Magnets NEOMAX® Series

Amorphous Soft Magnetic Alloy for Motors

These Nd-Fe-B (neodymium-iron-boron) sintered magnets provide the highest level magnetic properties and are usedin the traction motors for electric and hybrid vehicles as well as for other applications. NEOMAX®̶which Proterial was
the first in the world to develop and bring to mass production̶withstands a broad range of environmental conditions
from room temperature to much higher temperatures around engines.
In addition, we have been developing magnets that use less heavy rare earth. These environmentally friendly
products with superior magnetic properties contribute to smaller size, lighter weight, and better efficiency for ourcustomers. We are still accelerating the development of magnets that use much less heavy rare earth and expanding
product lineups to meet our customersʼ needs.

Amorphous soft magnetic alloy is prominent core materials for use in next-generation
high-efficiency motors. With about one-tenth the iron loss of non-oriented magnetic steel
sheets, these materials contribute to core loss reduction in motors.

NMFTM series ferrite magnets
Ferrite magnets, which consist primarily of ironoxide, are cost effective and the most widely usedmagnets in motors for automotive electricalcomponents. Among the NMFTM series, NMF-15 is
the worldʼs leading mass-produced ferrite magnet
in terms of magnetic properties. Their excellent
magnetic properties make them ideal for a wide
range of applications including motors for power
windows, power seats, sunroofs, cooling fans, andwindshield wipers.

11

Ultrahigh Density Bonded Magnets
HIDENSETM Series

Enamelled Wires forHigh-Efficiency Motors

The HIDENSETM is a high-performance bonded magnet developed withthe high-compression technology. This magnet is highly flexible inshape and magnetization and can be integrated with metalcomponents, thus contributing to a wide range of product designs.

This wire product supports the compact design and higher outputs
required for electric and hybrid vehicles while reducing environmental
impact and saving energy, leading to the development ofhigher-performance electric and hybrid vehicles.

12Automobile-related FieldxEV (for Inverter, On-board Charger, etc.)
We offer products with distinctive features, including energy saving, noise reduction,
vehicle downsizing, and weight reduction, thereby accelerating the electronification of automobiles.

On-board Charger

Amorphous Powder Cores/Coils

FINEMET® Nanocrystalline Magnetic Alloys
FINEMET® is the worldʼs first nanocrystalline soft magnetic alloy developed by Proterial. This new Fe-based
soft magnetic alloy is composed of nanocrystals. It has high saturation induction, high permeability, excellent
temperature characteristics and temporal stability. FINEMET® is utilized in high-frequency power transformers,
noise-suppression components and other applications where it contributes to downsizing and lightening.

Inverter

FINEMET® Common Mode
Choke Cores and Coils
Instilled with high magnetic permeability and low
Q factors, these cores and coils furnish highimpedance over a broad frequency range,
allowing them to manifest major noise
suppression effects. Moreover, because
impedance does not vary widely by temperature,stable noise suppression effects can be obtained
over a broad temperature range.

13

These cores and coils are designed to combine high saturation flux density
and low loss by using a Fe-based amorphous metal powder. They are suitable
for smoothing choke coils for both input and output of power supply, chokecoils for normal-mode noise reduction, and choke coils for power factor
correction circuits. The coils are able to operate at frequencies as high as
100 kHz and contribute to making equipment smaller and more efficient.

ReactorSoft Ferrite Cores

Isolating Transformers

Although these cores have a lower saturation flux density than othersoft magnetic materials, their electrical resistance is higher, and they
are characterized by overwhelmingly excellent magnetic properties inhigh-frequency bands from 100 kHz to several tens of MHz. With theaddition of the MaDC-FTM series, which have low losses in thehigh-frequency range, these products help to make passive
components smaller, lighter, and more efficient in many fields,
including xEV, mobile devices, and industrial equipment.

These transformers use ferrite cores that are less likely to saturate
during high-temperature operation and employ our original isolating
structure to achieve high dielectric strength and a compact body.

14

Automobile-related FieldxEV (for Power Module)xEV (for Battery)

We contribute to enhancing the performance of power modules with highly thermal-conductive components

Contributing to the weight reduction, downsizing,

and technologies conducive to improving the quality of next-generation power semiconductors.

and capacity increase of batteries.

Battery

Clad Foils for Lithium Ion
Batteryʼs Power Collector

Si3N4 Insulating Substrates for Power Semiconductor Modules

Power Module

Our insulating substrates are used in power semiconductor modules for inverters in hybrid and electric vehicles.
Because of their superb heat conduction and mechanical strength, Proterialʼ silicon nitride substrates are best suited
as insulated substrates for large power semiconductors that require high reliability, including insulated gate bipolartransistors (IGBT) and silicon carbide (SiC) devices. Our product lineup also includes 130W/mK substrates to support
reductions in thermal resistance.

Copper Alloy Strips,
Dual Gauge Copper
StripsOur rolled clad foils, which are made of Ni alloy and Cu, contribute to achieving
electric characteristics required for power-collecting foils and increasing thestrength of power-collector.

xEV (for Rapid Charger)
Our products contribute to reducing charging losses andmaking chargers smaller and lighter.

Rapid Charger

Copper strips with outstanding
thermal conductivity and heat
resistance are available. Our dual
gauge copper strips, which
integrate thin plate and thickplate into a single structure,enhance the heat dissipation in
power semiconductor modules forautomobiles.

SiC Wafers forPower Semiconductors
We undertake SiC power semiconductor wafer production
processes with Hi-LoDe LapTM, which harnesses our ceramicmaterial polishing technologies accumulated over the years, and
Hi-LoDe EpiTM, which is aimed at reducing defects.

15

Clad Metals
Developed according to our
proprietary technology, these clad
metals feature low thermal
expansion and high thermal
conductivity. They are best-suitedfor heat-dissipating substrates ofpower semiconductor modules
and lead wires for power
semiconductors.

FINEMET® Cut Cores for High-frequency Transformers
FINEMET® Non-Cut Cores for High-frequency Transformers
FINEMET® nanocrystalline soft magnetic materials have far lower core losses than magnetic steel
sheets, rendering them suitable as core materials for isolating transformers operating at highfrequencies of 5 to 20 kHz. They contribute to equipment downsizing when used in isolatingtransformers for inverters, typically those in rapid chargers.

16

Automobile-related Field

Engine and Exhaust System-related Components
Using our alloy design techniques cultivated in the specialty steel field and our casting techniques
refined in the long history of the company to produce heat-resistant components that meet needs.

HERCUNITETM* Series of Heat-ResistantCast Components

Piston Ring Materials
Proterial offers a wide variety of materials that cater to the needs of advanced engines andmanufactures near-net-shape wire materials to achieve optimal ring shape. Through high-mix,
low-volume production adaptable to customersʼ needs, we can deliver pre-hardened ringmaterials excellent in performance and precision.

This series of heat-resistant cast-steel/cast-iron product helps reduce CO2 emissions and fuelconsumption in gas engine vehicles etc. The products are applied in turbine housings, exhaust
manifolds and other exhaust system. They are able to withstand the extreme heat generated
by an internal combustion engine and contribute to improving a carʼs environmental
performance.
*The origin of the name HERCUNITETM
The name HERCUNITE is an acronym for HEat Resisting Cast materials for UNIT of Exhaust parts. However, the namehas another derivation. The suffix nite, which stands for a metal compound, is preceded by the name Hercules, a heroin Greek mythology.

Engine Valve Materials
Designed for use in exhaust engine valves that can help reduceengine emissions, these materials are exceptionally resistant to hightemperatures and high-temperature fatigue, based on our technology.
These products contribute to cost reduction with nickel saving
compared to conventional heat resistant steel.

OthersOther products we provide include materials for fuel injection systems,
spark plugs, sintered strip, semiconductor producing equipment
material, bearing materials, etc.

17

Ni-based Amorphous Brazing Foils

Turbine Wheels for Turbochargers

Diesel Particulate Filter

This amorphous brazing foil is primarily made of nickel and copper. It
has low environmental impact because it does not contain organic
binders. Being thin and resistant to corrosion, the material is suitable
for the brazing of heat exchangers.

These products are made of nickel-based heat-resistant super alloythat exhibits superior resistance to heat. Investment casting is
employed to produce complicated three-dimensional components
through near-net-shape forming.

Proterials' Diesel Particulate Filters are honeycomb structured cordierite ceramics filter
developed for an after treatment device of
medium and heavy duty trucks and buses which
can remove PM* efficiently from exhaust gas
from diesel engines.
※PM：Particulate Matters

Close-up
Cross-section

18

Automobile-related Field

Steering System andPowertrain-related Components
Developing high-quality metal materials and various magnetic materials that are essential for CVTs

Chassis-related Components
Continuing to pursue best suited materials, shapes, and manufacturing techniques,
thereby reducing weight, increasing fuel economy, and improving safety.

(continuously variable transmission), electric power steering systems, and transmissions.

CVT Belt Materials
Maraging steel belt materials developed for thecontinuously variable transmission (CVT), which isa major contributor to a fuel-efficient engine.
Based on metallographic innovations, we havedeveloped thin cold-rolled materials withworld-class fatigue strength that contribute to
upgraded transmission performance andincreased reliability.

High-toughness Ductile Cast Iron
Products HNMTM and NMSTM
Our ductile cast iron products exhibit high toughness at low
temperature and high dimensional accuracy. Our products come in awide variety of materials and sizes to support broad applications
worldwide, ranging from small passenger cars to large commercial
vehicles. By capitalizing on high-precision CAE techniques, we havedeveloped new products that can help make automobiles even lighter.
A notable example is OMEGA KNUCKLETM, which employs a new
structural design that is a lightweight, thin-walled, and half-hollow
shape with strength.

NEOMAX® Series
Neodymium Magnets /Radially Anisotropic Ring
Magnets
At Proterial, we not only support typical block andarc-shaped magnets, but also radially anisotropic
ring magnets that have a radial anisotropy
direction. These magnets provide a high degree of
freedom in setting the number of poles, and canalso be magnetized at a skewed angle relative tothe axis of rotation (skewed magnetization) to
reduce cogging torque (rotation unevenness).
They are used in electric power steering (EPS)
and exhaust gas recirculation (EGR) systems,
which require downsizing and better efficiency, as
well as in servo motors for power tools and factory
automation.

19

Harness for Electric Parking Brakes

Brake Hoses

We developed harnesses for use in electric parking brakes that excel
in flexural resistance and durability. Their high integrability with the
ABS sensor harness allows effective space conservation inside thecabin and increases vehicle safety and convenience.

brake hoses have been widely acclaimed and are used by the worldʼsleading automakers.

20

Automobile-related Field

Manufacturing Facilities
Developing materials for manufacturing facilities, including flexibly processable and highly durable steel
for tools, according to needs, thereby contributing to the improvement of production efficiency.

Chassis

DAC-iTM Steel for the Next-generation Standard Die-casting Dies
Compared to generic JIS SKD61, and DAC, our general-purpose steel for die-casting dies, this general-purpose steel issuperior in high-temperature strength and ductility. In addition to our proprietary alloy composition and structure
control technology, a 10,000-ton-class free forging press introduced to our Yasugi Works delivers high performance.

Electric Discharge
Machining [EDM]
Wires
Our EDM wires, which are madeof carefully selected materials,
enable high-speed andhigh-precision cutting. We offer awide variety of electrode wires fordifferent applications to meetvarious needs.

DAC-XTM, Steel for Die-casing Molds with
Excellent High-temperature Strength andToughness
This steel for die-casting molds combines an alloy design thatprovides high-temperature strength with a unique microstructure
control process to achieve both high-temperature strength andtoughness. It has excellent heat crack resistance and can extend thelife of molds, especially in applications with high thermal load. It also
contributes to reduce man-hours for mold repair as well as to improve
productivity and quality in high-cycle die-casting products.

21

Friction Stir Welding(FSW) Tools

SLDTM-f, New Cold Work Die Steel with
Excellent Machinability and Toughness
With the diversification in recent demand for molds in the
manufacturing of automotive frame components, SLDTM-f provides
solutions to reduce the total cost of molds by extending the life ofmolds and shortening the lead time (LT) of production.

Sialon Ceramics Die Cast Sleeve
Our sialon die cast sleeve consists of two layers: the inner sialon
engineering ceramics layer and the outer specialized alloy layer.
This product excels at maintaining the temperature of molten
metal and achieving stable injection and a longer service life,
thus contributing to the improvement of productivity and qualityof die casting.

These FSW tools are
manufactured by investment
casting of an ultra-high thermal
resistance and compressive
strength cobalt alloy. They areused to connect different
materials including high-tension
steel, carbon steel, titanium
alloys, aluminum alloys, andmagnesium alloys.

22

INFRASTRUCTUR

Industrial
Infrastructure-related Field
Aircraft components, power generating
equipment-related components, rolling stockcomponents and other industrial equipment are
all exposed to severe operating conditions.
Our technologies, quality and product development
capabilities, which were developed and proved overmany years, have always been bringing innovation.
We will continue to provide high-level reliability andinnovation for infrastructure globally.

Related link

23

24

Industrial Infrastructure-related Field

Power Generating Equipment-related
Components
Our high-quality products meet requirements of diversified power generation technologies:
thermal, wind and photovoltaic.

Hydrogen Storage Alloy

Turbine Blade Materials

Turbine Blade

Hydrogen storage alloy are alloys that cancompress and store [less than 1/1000]
hydrogen gas as a metal hydride [solid state,]and can absorb and desorb hydrogen at low
pressures of less than 10 atmospheres (1 MPa)
(Not applicable to Japanese High Pressure Gas
Safety Law.)
It is also one of the most compact and safe
storage methods for hydrogen gas. In the
future hydrogen society, this material is ideal
for hydrogen utilization in places where safety
and security are required or where installation
space is limited.

Turbine blades rotate at very high speeds andare vital components that need to be durable
to withstand extreme conditions such as
exposure to high temperature steam. As
such, they must be strong at hightemperatures, have a high degree of fracture
toughness, and be reliable in terms of quality.
We provide reliable products by utilizing our
integrated manufacturing system, whichdraws upon our broad expertise and thelatest technologies, helping our customers
generate power more efficiently.

Amorphous Alloys MetglasTM
This material is used in the cores of distribution
transformers, such as those mounted on utility poles,
and in cut cores for reactors built into power
conditioner systems for solar photovoltaic, wind power,
and other renewable energies. When the core material
is changed from magnetic steel sheets to amorphousalloy, no-load loss (standby power consumption) in thecore reduces, resulting
in higher efficiency andgreater power savings.
Demand is growing forthis product for its
recognition as a material
effective for reducing
CO2 emissions, which isessential for mitigating
global warming. With the
low-loss MaDC-ATM
series added to theportfolio, MetglasTM is
expected to find wider
applications in Japanand abroad.
Transformer Core25ZMGTM 232G10 for SOFC/SOECInterconnects

Alloy with High Hydrogen
Embrittlement ResistanceThis material, made primarily of iron and chrome, is used ininterconnects that electrically link cells in SOFCs*1 and SOECs*2. It
has oxidation resistance over long periods, has good conductivity inhigh-temperature environments, and achieves nearly the same
thermal expansion coefficient as that of electrode materials.

This material is suitable for use in a hydrogen environment,
specifically for components of hydrogen engines and hydrogen fuelstations. Developed using our long-established strong technology
applied for internal combustion engine (ICE) parts, this product has
high hardness and good corrosion resistance in addition to hydrogen
embrittlement resistance.

*1. SOFC: Solid Oxide Fuel Cell

*2. SOEC: Solid Oxide Electrolysis

26

Industrial Infrastructure-related Field

Materials for Aircraft Components

Industrial Robot Components

Our special melting technologies and manufacturing processes, which were developed over many years,

We help to advance industrial robots by offering magnetic materials with world-class properties anddeliver materials for aircraft featuring world-class reliability and durability.

distinctive electric wires and cables.

CASE LPT Forging

DISK HPC Forging
CASE HPC Forging

DISK LPT Forging

Turbine rear frame (TRF)

Industrial Robot

We provide different types of magnets ideal for various applications,
including NEOMAX®, a Neodymium-Iron-Boron Magnets with theworldʼs best class magnetic properties, Ferrite Magnets, and Bonded
Magnets.

CASE HPT Forging

DISK HPT Forging

FAN Case

Shafts27

SHAFT Forging

CASE Combustion Forging

High-performance Magnets(Neodymium-Iron-Boron Magnets,
Ferrite Magnets, and Bonded Magnets)

Aircraft Engine

Turbine Case

Industrial Robot Cables

Linear Motors Acc-maxTM

Materials for Aerospace Engines and Structural Parts

Industrial Robot Cables

Linear Motors

Materials for aerospace engines and structural parts, such as landing gears, must be durable to withstand high-temperature, high-pressure
combustion gases, high-speed revolutions, and repetitive heavy loads for an extended period of time. Therefore, such component materials mustbe highly reliable and durable. Our materials for aerospace components are highly acclaimed and trusted thanks to our special melting
technologies and manufacturing processes that have been nurtured over the years.

The highly flex-resistant and flexible cables are ideal for moving
portions of industrial robots, where resistance to repeated bending andtwisting and durability are critical requirements. In addition, a wide
range of wire and cable products are available to meet many different
needs for power supply, control, and signal transmission cables andwires connecting components within and between equipment.

To meet diverse requirements including high-precision positioning,
constant velocity, and high-speed feeding, we internally design andmanufacture various types of linear motors (coreless and iron-core)that provide the driving force for straight-line motion.

28

Industrial Infrastructure-related Field

Rolling Stock-related Components
Our cast iron products and soft magnetic materials, as well as our wires and cables,
which have long been used for rolling stock, have contributed to railway development locally and globally.

Rolling StockContact Wire

Joints for Special
High-voltage Cables
Metal shielding provides stable insulation
performance even in polluted environments,
contributing to a consistent supply of power for
rolling stock. In addition, since electricalisolation is not required, they offer a highdegree of freedom in car installation and help
reduce noise during driving.

Wires and Cables for Rolling Stock

Wires and Cables for Rolling Stock/Trolley Wires
Our wires and cables for rolling stock are used in cab wiring, underfloor wiring, wiring
between rolling stock and other applications in Shinkansen bullet trains and many other rollingstock vehicles in Japan and overseas. In the railroad sector, we also provide trolley wires,
signal cables, LAN cables for high-speed communications, and other products that support
power supply and information transmission for railways.

29

Ductile Cast iron products for
Bogie of Rolling StockFINEMET® Common Mode
Choke Cores

The products have high low-temperature toughness and dimensional precision.
The near net shape and the integrated casting with high shaped flexibility. The
weldingless structures help to improve the reliability and reduce the weight.

These common mode choke cores are made of FINEMET®
nanocrystalline soft magnetic material. These products
furnish high impedance over a broad frequency range andcontribute to reducing the size and weight of EMI filters.

Category 7 (Cat 7) LAN Cables forHigh-speed Communications

Rodent-proof Optical Cables and
LAN Cables

Our LAN cables deliver the required electrical properties while
complying with the European railway fire safety standards. We haveaccomplished these features by improving the LAN cable structure
and adopting a halogen-free sheath material with high flame
retardancy, which we have developed ourselves.

The braided stainless-steel construction makes these cables resistantto rodent damage while maintaining their flexibility. Rodent-proof
optical cables are able to support various connectors, making them
useful for updating existing facilities. We also have a lineup ofrodent-proof LAN cables for devices in equipment rooms andsurveillance cameras.

30Industrial Infrastructure-related Field

Medical and Healthcare-related Components
With our ultra-fine cable, tube and ceramic products, we will help improve
the performance of medical devices and contribute to the progress of medical treatment.

Ceramic Scintillator Materials

Tubing for Medical Application
In addition of manufacturing capability of precision extrusion tooling, the experience and extrusion
technology for tubing would provide high-end tubing* for medical application such as vascular access.
*Including multi-lumen, multi-layer assemblies

When exposed to radiation, scintillator materials
absorb the energy of the radiation and emit visible
light. Their high sensitivity and large X-ray
absorption coefficient contribute to the reductionof device size. These materials are used in medical
equipment such as X-ray CT and analytical
instruments. We have also developed a newcomposite material for security applications.

Probe Cables for UltrasoundDiagnostic Equipment
The cable connects the main body of ultrasounddiagnostic equipment and the probe used for echo
graphic investigation. It is lightweight, excels inelasticity and flexibility, and has high-quality electriccharacteristics, realizing ease of handling andhigh-definition images, thereby contributing to thedevelopment of medical equipment.

Razor Blade Materials［ 10μm-diameter copper alloy wires and hair ］

31

These traditional razor blade materials embody
our pursuit of the cutting performance of theJapanese sword and sharp cutting edges that will
not chip easily. The use of carefully selected raw
materials and advanced carbide control
technology allow them to continue to evolve
technically. Recognizing the high reliability they
can bring, we are expanding their applications tosurgical knives and other fields.

32

Industrial Infrastructure-related Field

Metal Additive Manufacturing Materials andPrecision Forming
Unprecedented products are delivered, based on our expertise in materials and the best of
our additive manufacturing technology.

High Corrosion Resistantand High Strength Alloy
ADMUSTERTM-C00P

ADMUSTERTM-W285P
Low-cobalt
Maraging Steel Powder

Multi-element alloys are said to be difficult tocast and machine, although they areexcellent in strength and corrosion
resistance. Proterial developed metal powder
made of multi-element
alloy by applying laser-powder additive
manufacturing and identified process
conditions for metal additive manufacturing.

High Corrosion ResistanceNickel-based Alloy ADMUSTERTM-C21P
This product is a nickel-based alloy with high corrosion resistance,
which is enabled through the addition of chromium, molybdenum, andtantalum. The identification of process conditions for the metal additive
manufacturing process has enabled us to manufacture near-net-shapecomponents with high corrosion resistance, such as those used insemiconductor manufacturing equipment and chemical plants.

33

Hard Particle Dispersion Type
Chromium-based Alloy
ADMUSTERTM-C574P
This hard particle dispersion type chromium-based alloy is excellent incorrosion resistance, resistance to soil abrasion, and workability. Whenbuilt up with this alloy on the component surface, excavation equipment
will have a longer service life and need less maintenance work.

With a cobalt content of not more than 1%,
the material falls outside the scope of
specified chemical substances (Group 2monitoring substances). However, it is asstrong as general maraging steel and thus
easy to handle in additive manufacturing.

Metal Powder Injection Moldings (MIM)
The metal injection moldings (MIM) process is a technique tomanufacture metal components by injecting metal powder into
specific molds. It produces high-density, high-strength sinteredcomponents that combine two advantages: the freedom ofshape-forming allowed by injection molding and the strength of metalcomponents. The Proterial Group also manufactures products that areamong the largest available in the industry.

Precision Cast Components(Investment Casting)Proterial is capable of manufacturing near-net-shape cast productsthat have complex shapes and are widely varied in size, capitalizing on
our diverse materials portfolio, unique production technologies, anddevelopment capacity.

34

Industrial Infrastructure-related Field

Facility Equipment and Components
Our technologies, developed in many different fields, help create products with unique features.

Cylinders and Screws
for Plastic Molding
Machines

Blade Materials
Proterials' blade materials date back to the“Tatara” method, a traditional ironmaking
technique that Japan can proudly standbehind. For their Japanese sword-like cutting
performance and superior resistance to edge
chipping, our blade materials are well received
by professional users, especially artisans. Ourrepresentative cutlery steel brands include
ShirogamiTM, KigamiTM, AogamiTM, GingamiTM,
and ATSTM34.

Metal Bandsaw Blade

The H-ALOYTM cylinders lined with nickel- or
cobalt-based alloy and the high-performance
YPTTM screws are designed for plastic molding
machines. With excellent resistance toabrasion and corrosion, both products, whenused together, help to stabilize the operationof the plastic molding process.

Rolls for Steel Mills
Our rolls for steel rolling mills have higher strength
and wear resistance, and enable more efficient
production of high-precision rolled products. A
wide variety of products are available tomanufacture steel plates, pipes, bars, and wires, aswell as other shaped steels, to meet diverse
demands from steelmakers. Most notably, our
HINEXTM products, which were the firstcommercially available high-speed steel-based
composite rolls in the world, and other high-speed
steel composite rolls have significantly betterrolling performance than traditional rolls and help
improve rolling productivity and quality.

35

HINEXTM Rolls

Undulators

Solenoids

We supply undulators to SPring-8, a large synchrotron radiation facility
capable of producing the most powerful synchrotron radiation in theworld, and SACLA, an adjacent X-ray Free Electron Laser (XFEL)
facility. To generate synchrotron radiation, magnets are used to change
the path of electrons that have been accelerated to nearly the speed oflight. Extremely bright and highly directional synchrotron radiation
contributes to wide-ranging research in everything fromnanotechnology and biotechnology to industrial applications.

The products are widely used to control valves in hydraulic machines insuch fields as construction, agriculture, and industrial machinery andvehicles. Our broad lineup of solenoids, including proportional andon/off types, are available with high sucking force, high pressure
resistance, and a waterproofing property, contributing to theadvancement of hydraulic equipment.

36

Industrial Infrastructure-related Field

Building and Construction Components
and Materials
Our construction products support a variety of living and industrial settings through their unique

Telecommunication Infrastructure
Components
We will offer various products and solutions to mobile station bases and data centers.

construction methods, technologies and materials.

Base Plates andDiaphragms

PrimestarTM VCI Remote
Monitoring System for
Fiber-optic Lines

These base plates are used as exposed-type
fixed column bases to construct steel framebuildings. The highly workable column bases
provide superior earthquake resistance,
significantly shorter work periods, andreduced installation space.
Our diaphragms are used in a beam-column
joint that connects upper and lower story
columns of different width. We run a
production line dedicated to volume
manufacturing to meet shorter delivery times.

Our optical fiber products are criticalcomponents of the patented low-loss optic
connection technology. The technologies
support highly reliable optical fiber
monitoring system, Primestar VCI, requiredfor important data communication services infinancial and broadcasting businesses. They
also simplify monitoring and maintenanceprocesses, and contributes to improving
efficiency and labor saving of wiring andmaintenance activities, which are
indispensable in the data center.

Base Plates

Diaphragms

Flexible Cables
Cables with superior flexibility are used to supply power and signals tocranes and hoists inside plants (supplemental equipment for cranes).
Since they are also durable enough to be used in harsh environments,
these cables are expected to play a role in mining and other areas of
the resource extraction sector.

37

MLFCTM Flame-retardant Polyflex
Insulated Wires
MLFCTM flame-retardant polyflex insulated wire has been widely used
for electric wiring, including insulated wire inside switchboards andmotor lead wires, because of its outstanding heat resistance,
flame-retardant properties, and flexibility.

AlTiC Substrates for Thin
Film Magnetic Heads
These substrates are used in thin film magnetic
heads for hard drives. They have made it possible
to provide the properties required for highly
precise data scanning, contributing to larger
capacity drives that are more reliable.

38

The fields of video/IT equipment, home appliances,

ELECTRONICElectronics-related Field
and electronic devices are constantly evolving.

Our production system, encompassing the entire process fromprototyping to commercialization and mass production,
allows us to meet our customersʼ diverse needs.
We will continue to support the growth of society at large withhigh-performance components and materials.

Related link

39

40

Electronics-related Field

IT and Home Appliance-related Components
Proterial offers alloys for electronic products and magnetic materials with outstanding properties
to contribute to the evolution of flat displays and mobile terminals.

Materials for Organic
Electroluminescent
Panels
These materials are used for the metalmasks needed to produce organic
electroluminescent display backboards
and panels. They are available in theform of thin sheets that restrict thermal
expansion deformation, produced by ourcontrol technology of alloy compositionand cold rolling technology developed
over the years.
We also offer high-strength stainlesssteels used for the back panels offoldable devices.

Target Materials for Eighth-generation LCD Panels

41

Sputtering Target Materials for LCDs

Lead Frame Materials

The Sputtering Target materials are used for thin film interconnects of
LCDs. Our HIP (Hot Isostatic Press) method enables to obtain fine andhomogeneous structure, which corresponds to the requirement of
increasing in size. Furthermore, our alloy design technology enables
to provide various alloy materials as usage, which responds to therequirement like high heat resistance, and high moisture-resistance.

We provide an extensive lineup of iron nickel-based and copper-based
lead frame materials; materials for logic families and power
semiconductors, and dual gauge copper strips which has a multi
thickness design in width direction.

Clad Metals for
Heat Spreaders
These clad metals combine stainlesssteel and copper to achieve both highstrength and high thermal conductivity.
They are useful for reducing the
thickness, weight, and the number ofcomponents of mobile devices, such as
smartphones and tablets.

High-Performance
Magnets(Neodymium-Iron-Boron
Magnets, Ferrite
Magnets, and Bonded
Magnets)
We provide different types of magnets
ideal for various applications, including
NEOMAX®, a Neodymium-Iron-Boron
Magnets with the worldʼs best classmagnetic properties, Ferrite Magnets,
and Bonded Magnets.

42

Electronics-related Field

Electronic Device-related Components
Soft magnetic materials with unique features allow us to make electronic devices smaller
and more energy-efficient.

FINEMET® Nanocrystalline
Magnetic Alloys
FINEMET® is the worldʼs first nanocrystalline soft
magnetic alloy developed by Proterial. This new
Fe-based soft magnetic alloy is composed ofnanocrystals. It has high saturation induction, highpermeability, excellent temperature characteristics
and temporal stability. FINEMET® is utilized inhigh-frequency power transformers,
noise-suppression components and otherapplications where it contributes to downsizing andlightening.

Amorphous Powder Cores/Coils

Soft Ferrite Cores

These cores and coils are designed to combine high saturation flux
density and low loss by using a Fe-based amorphous metal powder.
They are suitable for smoothing choke coils for both input andoutput of power supply, choke coils for normal-mode noise
reduction, and choke coils for power factor correction
circuits. The coils are able to operate at frequencies
as high as 100 kHz and contribute to making
equipment smaller and more efficient.

Although these cores have a lower saturation flux density than othersoft magnetic materials, their electrical resistance is higher, and they
are characterized by overwhelmingly excellent magnetic properties inhigh-frequency bands from 100 kHz to several tens of MHz. With theaddition of the MaDC-FTM series, which have low losses in thehigh-frequency range, these products help to make passive
components smaller, lighter, and more efficient in many fields,
including xEV, mobile devices, and industrial equipment.

ReactorFM SHIELDTM
Magnetic Shield Sheets
The product consists of laminated
FINEMET® nanocrystalline soft magnetic
material ribbon and polyethylene
terephthalate film. The shield sheet
protects electronic devices fromelectromagnetic noise and provides robust
shield in shield boxes or rooms withinbuildings exposed to environmental
magnetic fields like electric power
distribution facilities.

Metal Powder Core HRM Series
Cut Cores
Used in medium-frequency power transformers and choke coils, ourcut cores contribute to higher efficiency and smaller sizes. FINEMET®
nanocrystalline magnetic materials and amorphous metal products
suited to various uses are available.

43

FINEMET® Common Mode
Choke Cores and Coils
Instilled with high magnetic permeability and low Q factors, thesecores and coils furnish high impedance over a broad frequency range,
allowing them to manifest major noise suppression effects. Moreover,because impedance does not vary widely by temperature, stable noise
suppression effects can be obtained over a broad temperature range.

The products have about three times the saturation
magnetic flux density and almost twice the radial
crushing strength of Ni-Zn ferrite products, which wereconventionally used. These characteristics make them
relatively superior in electrical resistance, rustproofing,
and reliability (e.g., temperature stability) among metallic
materials. Serving as cores for power inductors
embedded in various information equipment andautomotive electrical equipment, they contribute tosmaller and higher-current inductors (improvement of DC
superimposition properties).

FINEMET®
Multilayered Sheets
These shield yoke sheets are used inwireless chargers for smartphones, tablet
PCs, and other communications devices.
The lamination processing of FINEMET®,a high magnetic permeability material withlow core loss, enables a slimmer size andlighter weight and achieves impressive
cuts in power transmission noise andenergy loss.

44

Major Operation Bases

Major Operation BasesEuropeProterial Europe GmbHSouth Germany Office, Munich
Milano Branch OfficeLondon Branch Office

North America

Paris Branch OfficeProterial America, Ltd.
Detroit Office

Asia

Japan

Proterial (China), Ltd.
Beijing Branch OfficeProterial, Ltd.

Guangzhou Branch OfficeKitanihon Sales OfficeSuzhou Branch Office

Ibaraki Sales Office

Dalian Branch Office

Shinshu Sales OfficeProterial Hong Kong Limited

Central Japan Regional Office

Head OfficeProterial Taiwan, Ltd.

Western Japan Regional Office

Taipei Branch

Chugoku Sales Office
Kyushu Sales OfficeProterial Asia Pacific Pte. Ltd.

Global Research & Innovative Technology Center

Proterial (Thailand) Ltd.
Proterial (India) Private Limited

Proterial Hallow, Ltd.

Proterial Korea Co., Ltd.

Proterial Solutions, Ltd.

Specialty Steel Business Unit

Roll Business Unit

Japan

Japan

Yasugi Works
Okegawa WorksJapan

Kumagaya Works

Electric Wire & Cable Business UnitJapan

Ibaraki Works

NEOMAX KINKI Co., Ltd.

Cable Materials Research Laboratory

NEOMAX ENGINEERING Co., Ltd.

Proterial Trading, Ltd.

Moka Works

NEOMAX KYUSHU Co., Ltd.

Tonichi Kyosan Cable, Ltd.

Proterial Metals, Ltd.

Casting Technology Research Laboratory

Santoku Corporation

Tohoku Rubber Co., Ltd.

Proterial Precision, Ltd.

Kyushu Techno Metal, Ltd.

Proterial Yasugi, Ltd.

Proterial Machinery, Ltd.

San Technology, Inc.

North America Proterial Cable America Inc.

Alcast, Ltd.

Pacific Metals Co., Ltd.

Asia

Metallurgical Research Laboratory

Automotive Casting Business Unit

Proterial Specialty Steel, Ltd.

Japan

North America Diehl Tool Steel, Inc.
Asia

Proterial Wakamatsu, Ltd.

Magnetic Materials Business Unit

Proterial (India) Private Limited

North America Effingham Machining & Assembly Components, Inc.

Proterial Korea Co., Ltd.

Asia

Proterial Specialty Steel (Dong Guan) Co.,Ltd.
Proterial Metals (Suzhou), Ltd.

HNV Castings Private Limited
Nam Yang Metals Co., Ltd.

Asia

PT. NEOMAX MAGNETIC TECHNOLOGIES INDONESIA

Ibaraki Technos, Ltd.

Proterial Vietnam Co., Ltd.

Power Electronics Materials Business Unit
Japan

Proterial Malaysia Sdn. Bhd.
Proterial Thai Enamel Wire Co., Ltd.

Proterial Ke Huan Magnetic Materials (Nantong) Co., Ltd.

Proterial Cable (Suzhou) Co., Ltd.

Metglas Yasugi Works

Shanghai Proterial Cable Materials Co., Ltd.

Proterial Specialty Steel (Ningbo) Co., Ltd.

Yamazaki Works

Proterial Taiwan, Ltd. Five Ace Factory

Applied Components Dept.

Automotive Components Business Unit

Proterial Ferrite Electronics, Ltd.

Japan

North America Metglas, Inc.
Asia

Proterial (Thailand) Ltd.

Cable Materials Research Laboratory
North America Proterial Cable America Inc.
HC Queretaro, S.A. de C.V.

Proterial Philippines, Inc.
Proterial (India) Private Limited
Guangzhou Proterial Jiushuikeng Electronics Factory

Ibaraki Works

Asia

Proterial (Thailand) Ltd.
Proterial (Thailand) Ltd. Chonburi FactoryProterial Cable (Suzhou) Co., Ltd.

45

46