H-ONE CO., LTD.
11-5, Sakuragi-cho 1-chome, Omiya-ku, Saitama-shi, Saitama 330-0854, Japan
TEL: +81-48-643-0010 (Main), FAX: +81-48-643-0040
URL: www.h1-co.jp

COR POR AT E P ROF I L E

H-ONE CO., LTD.
201806-A

Message from the President

We Contribute to the Automobile Society with H-one Frames
We are always seeking to improve the performance of our automobile body frames,with consideration for safety, comfort, and earth-friendliness.

Seiki Mayumi

Representative Director,President, Chief Executive Officer
As a company which combines the strengths and founding
spirit of its two predecessors HIRATA TECHNICAL CO.,LTD. and HONGO CO., LTD., H-one makes valuable
contributions to the automobile society through the productionof automobile body frames, while satisfying the needs ofour customers.
Throughout our history of over 120 years together withthe predecessors, H-one’s press work technology has
always been at the heart of business and, to date, wehave launched numerous metalwork products to themarket. Today, our main business is the development andmanufacture of automobile body frames, which play akey role in the safety and environmental performance,operability, and comfort of automobiles. Our network
extends not only across Japan but around the world,which enables us to establish a strong global supplysystem.
Our Management Philosophy of “To Realize Our DreamWe should conduct ourselves with Respect and Trust foreach other while Challenging one another to strive forcontinuous improvement that enables us to become acompany that contributes to the world.” is based on ourdesire of “becoming a company which promises to meet theexpectations of customers around the world.” In order todo so, we believe that all members of our company must
give the highest degree of respect and trust to each otherwhile undertaking challenges to bring our dreams intoreality.
Therefore, all of us at H-one will strive to provide
attractive products and services with a firm dedication toour Management Philosophy.
We will commit to making every effort to fulfill theexpectations from society, as we take steps forward
toward sustainability based on this Management Philosophy.

1High-quality Products Contributing toAutomobile Weight Reduction, Safety, and Comfort

Rear Wheel House

Front Side Frame
Front BulkheadCenter Pillar

Front Pillar

Rear Frame

Door Beam

2

Technologies

High-performance Frames Developed from our Expertise and Advanced Simulation Technology
H-one automobile frames support the safety, comfort, and environmental performance of automobiles
With advanced metal forming and welding technologies which fully apply our cutting-edge
research and development as well as our unique expertise, we are able to produce high-quality
automobile body frames with world-class performance.

from the inside.

3

We are comprehensively involved in all stages from initialresearch and development to product design, manufacturing technology development, and mass production.
1

Research and Development

In order to achieve reduced weight and greater safety for ourframes, we carry out independent simulations on collisions, strength,and rigidity for a whole automobile body.
Our research and development are not limited to frames, but covera wide range of material engineering fields.

2

Frame Design

We participate in designing of new vehicle
models carried out by automakers from theearliest stages of planning. In addition tosimulations on collisions, strength, and rigidity,
we use forming and welding simulations topropose optimal frames for each vehicle typewhich combine excellent performance, highquality, and cost competitiveness.

4Mass production can realize inventive
ideas which are proposed in upstream
processes, with our various manufacturing
sites around the world effectively
utilizing large-scale press machines andvarious robots.
The combination of such equipmentwith our proprietary manufacturing
technologies and production management expertise allows us to efficiently
manufacture superior-quality products.

Manufacturing Equipment

By sharing and coordinating product design data between processes ranging
from die design to automated processing, and processes ranging from welding
line simulation to robot programming, we are able to shorten all lead times
required until completion. We also use the latest measuring instruments tomake comparisons of actual parts against product design data, ensuringhigh-precision quality.

Welding Line Simulation

Mass Production of Frames

Die Design

Stamping Process

Cutting Process

Welding Process

Finishing Process

Product Delivery

Frame Performance Simulation

Welding Line Installation

Collision Simulation

低解像度
110% 拡大

Rigidity Simulation

Strength Simulation

Unique Products Created throughResearch and Development
3DQ Body Frames

Dies

Metal Separators for Fuel Cells

H-one is the world’s first company to successfully mass-produce body frames using 3DQ (Three-Dimensional
Hot Bending and Direct Quench) technology, in which quenching is performed on steel tubes to enhancetheir material strength. Body frames produced with this method have outstanding strength at the level of
1,500 MPa, which can both increase passenger safety and reduce part weights, and also have excellent
accuracy of form.
Since it enables high-efficiency manufacturing without the need for dies by using ultra-strength steel tubes
with complex shapes,
3DQ technology canbe applied to produce
a wide range of frame
types.

In addition to the manufacturingof dies, we are involved through ourGroup companies in the productionof blocks of cast metal which serve as
raw materials for those dies. Our die
production technology and expertisein high-strength material processing
cultivated over the course of morethan 30 years has allowed us to gain
a tremendous degree of trust fromboth domestic and overseas customers.

Metal Separators are a component of the fuel cell stacks which
serve as the source of power for fuel-cell vehicles. They are produced from extremely thin stainless steel materials, finely processed to circulate hydrogen, air, and coolant by applying ourprecision punching and precision die production technologies.

3(Model of power generation with a single cell)H₂(hydrogen)Hydrogenelectrode (-)

Oxygenelectrode (+)

O₂(oxygen)

H₂O

Cell
Cell
Cell
Stacked arrangement

Electrolyte membrane

ElectronElectrode layer

Diﬀusion layer

Separator

Separator(water)Separator(Joint development withNIPPON STEEL & SUMITOMOMETAL CORPORATION, andNIPPON STEEL & SUMIKINPIPE CO., LTD.)■Fuel Cell Stack Component Diagram
Single cells are stacked in amanner similar to dry batteriesconnected in series

Cellpower generation
Principle of fuel cell stack power generation

4

Manufacturing Capability

Together with Society

Manufacturing Lines Capable of Achieving Products of the Finest Standard

We Contribute to the Realization of a Sustainable SocietyWith the latest manufacturing equipment to produce a diverse range of high-quality
products, we can supply automobile body frames to automakers around the world with
our advanced press work technology and highly efficient welding technology.
3,000ton Servo Transfer Press

Front: 800ton Progressive Press
Back: 1,500ton Transfer Presses (2 units)

Respect for the Individual

Management Philosophy

To Realize Our Dream We should conduct ourselves with
Respect and Trust for each other while Challenging one
another to strive for continuous improvement that enables
us to become a company that contributes to the world.

RealizeOurDreamMission Statement

We will provide attractive products and services to exceed
the expectations of the clients around the world.

High Expectationand Trust

Challenge withDetermination

Our Group is deeply involved in activities to conserve the globalenvironment. These include measures for CO₂ reduction implemented through our business activities, initiatives for tree planting andforest development conducted at various locations around theworld, and activities to enhance the ability of the ecosystem toabsorb CO₂.
As a company with close ties to neighboring communities, we
also give the utmost importance to communication with thosecommunities, and carry out various involvement activities in thecountries and regions where we are located.
Community
Involvement:
Examples ofour Activities

KTH Parts Industries, Inc. (Ohio, USA)●Charity activities ●Donations of school supplies●Events open to participation by local residents

and employee family members

Reforestation activities (Saitama)

QH Auto Parts Industries, Inc. (Qingyuan, Guangdong, China)

We have machines in operation worldwide including various types of large-scale presses, allowing us to provide solutions

Press Machines of outstanding quality which meets our customers’ ultra-high strength material requirements.
Our automated state-of-the-art welding lines achieve anWelding Line unmatched level of both versatility and productivity.

Continuous joining contributes to weightLaser Welding reduction and greater rigidity.

Donations to local medical institutions (Canada)

Tree-planting activities (China)

Educational visits held for local elementary school students (Mie)

WH Auto Parts Industries, Inc. (Wuhan, Hubei, China)

5

Koriyama Factory (Koriyama-shi, Fukushima)

Environmental awareness activities (Thailand)

Cultural exchange activities (USA)

Hosting of charity events (USA)Donations of school supplies (India)

Community events (Mie)6