CORPORATE PROFILE

Connect peace of mind.
Hold the city.

Precision spring manufacturer

KOYOʼｓConcept
We will take a great leapby connecting peace of mind
and supporting the city.

Management Philosophy"Roppo-yoshi"
Being a company that contributes to society and isneeded and appreciated,
we believe it will lead employees' and their family's
happiness.
We will aim at realizing the prosperous society
connecting society and people through manufacturing.
"Roppo-yoshi（Six way satisfaction）" is our philosophy which combines"good for the seller, good for the buyer, and good for the society" with theaddition of "good for the creator, good for the earth, and good for thefuture."
We believe that a company can grow sustainably into the future only byproviding value that satisfies not only customers and employees, but alsosociety and the global environment.

New Try & Quick Response for Customer
We believe that customers come first.
Each one of our employees does not stick to traditional ways, but
pursues rationality, takes on the challenge of "new ideas" and "newmanufacturing processes", and always wants to be useful to ourcustomers under the slogan of quick reaction in everything.

KOYOʼｓCommitment.

Three [MAKE][MAKE] BETTER

We make good products by working on improving everyday.

[MAKE] NEWWe always study and create new things with efforts.

[MAKE] DIFFERENCE
We try for our own unique and unrivaled products.

Even in places like these!
Springs are also used in such unexpected places like these.
Our products connect peace of mind and support the city.

Stationeries,etc.

Plumbing, etc.

Downlights

Inside concretefoundations

Waterheaters

Dashboard panels

Gas stoves

Water bottles

Air conditioners

34Springs are used in various applications;connecting, fastening, tightening.
We will respond to customers' requests.

THERMAL FUSESPACERCOMPRESSION SPRINGTENSION SPRINGCLIP

HELICAL TORSION SPRINGCOLLAR

FLAT SPRING

COIL SPRINGQUICK FASTENERWIRE FORMINGQUICK FASTENER
withPlastic cover

DEFORMED WIRE

TIARA

CROWN

5

QUICK FASTENER(Customized)

SPACER

6

With our extensive know-how
and integrated production system,
we supply high quality productsthat meet the needs of our customers.
We are constantly working to improve and refine our engineering systems
to meet the needs of each customer individually.

Product designanddevelopment（３D-CAD）

Development
meetings
with customers

Meetings
for Production
preparation

Die design（2D-CAD/CAM）

Wire electricaldischargemachining units
Die making

Stainless-steel sheets

Multi-Forming machines

Flat spring process

Inspection of wire lot / Storage

Image dimension
measuring instrument
High-precision inspection equipment

Forming / In-process inspection

Example of production process of ﬂat spring（Stainless steel plate）

Production stock

Delivery

7

Production
managementsystem

Measuring weight and packaging

Multiscalefor weighting

Barrel ﬁnishing / In-process inspection

Rotary barrel
polishing machine

Annealing process / In-process inspection

Conveyor type annealing furnace（temper furnace）

Degrease washing"Three-tank circulating”
washing machine8

We are proud of our more than 50 years of experiencein the "City of Technology, Higashi-Osaka".
KOYO has been in business for more than 50 years as a precisionspring manufacturer in Higashi-Osaka, and has always been ahead of the times,
introducing the latest equipment and proposing and supplying high-quality,
high-performance products that meet a wide range of customer needs.

COMPANY PROFILECOMPANY NAMECEOKOYO Co., Ltd.

Ishiwari Motoki

ADDRESSCAPITAL

4-3-19 Nunoichi-cho, HigashiOsaka-shi,Osaka, JAPAN 579-8004¥10,000,000Tel

1966 MAY+81-72-982-2861
Fax+81-72-982-2868
URL
https://koyo-co.co.jp
BANK

・The Bank of Kyoto, Ltd.（HIGASHI OSAKA BRANCH）
・Resona Bank, Limited.（HIGASHI OSAKA BRANCH）

EQUIPMENTSOUR BUSINESS

Starts as a precision coil springs and installed press machine.
1970 APR Starts Multi forming machine for manufacturing flat springs.
1973 FEBZUB multi-forming machine introduced.

1979 MAR New company building completed(Nunoichi).
1979 JULFIELD OF APPLIANCE

2006 JAN

Started online shopping division ECS COMPANY PVT.LTD.

2006 FEB

22nd Higashi-Osaka City Excellent company award is granted.

・Gas heater parts
・Automotive parts
・Parts for home appliances and industrial equipments

Reorganized into KOYO Spring Group.

1990 MAR Name changed as KOYO COMPANY LIMITED.

Wire electrical discharge machining units ………… 3 units
3D CAD(SOLIDWORKS）…………………………… 2 units
2D CAD・CAM(Speedy mill/Win） ………………… 2 units
Auto surface grinding machines …………………… 2 units
Surface grinder ……………………………………… 1 units
Milling machine ……………………………………… 1 units
Lathe machine ……………………………………… 1 units
Desktop drilling machine …………………………… 4 units
EDM hole drilling machine ………………………… 1 units

NC wire forming machines ………………………… 4 units
NC coiling machines (Compression springs）……… 6 units
Cam coiling machines (Compression springs）…… 4 units
Cam coiling machines (Tension springs） ………… 1 units■TESTING EQUIPMENTS
Digital image measuring machines ………………… 3 units
Projection measuring machines …………………… 3 units
Spring testers………………………………………… 3 units■POST-MACHINING EQUIPMENTS
Conveyor type low temperature annealing furnace… 8 units
Degrease machine ………………………………… 1 units
Rotary barrel polishing machine …………………… 2 units
Spring grinding machine (spring end grinder） …… 1 units
Weighting multiscale ………………………………… 4 units

New company building completed（Nunoichi）（1979）

1997 MAR QUICK FASTENER with different diameter" debuts.

2006 OCT Obtained ISO 14001:2004 Certification.
2010 OCT Obtained ISO 9001:2008 Certification.

■DIES

Multi forming machines (ZUB200）……………… 10 units
Multi forming machines (ZUB220）………………… 4 units
Multi forming machines (RF-20）…………………… 3 units
Multi forming machines (RF-60）…………………… 5 units
NC forming machines (SF150-25B） ……………… 1 units

1966 MAY Foundation of `KOYO SPRING FACTORY `・Design, Development & Manufacure of smalll precisionsprings
・Development, manufacture and Die design for flat
springs and metal stamping products・Assembling■COIL SPRING MACHINES■FLAT SPRING MACHINES

9ESTABLISHMENTCOMPANY HISTORY"QUICK FASTENER with different
diameter" debuts（1997）2012 NOV "CROWN"debuts.
2013

AUG "TIARA"debuts.

2015 JAN

Solar power generation equipment is installed.

2017 FEB"QUICK FASTENER with Plastic cover"debuts.

"CROWN" "TIARA" debuts（2012/2013）2017 OCT Obtained ISO14001:2015 Certification, ISO9001:2015 Certification.
2020 FEB

Osaka"Monozukuri"Excellent company award is granted.

2020 MAR Registered as a Youth Yell Certified Company.

"QUICK FASTENER with Plastic cover"debuts（2017）10

Connect peace of mind. Hold the city.

Precision spring manufacturer

Head office & factory
Address

4-3-19, NUNOICHI-CHO, HIGASHIOSAKA-SHI,OSAKA,JAPAN. 579-8004

TEL+81-72-982-2861

FAX+81-72-982-2868

e-mailsales@koyo-co.co.jp

URL

https://koyo-co.co.jp

2023.JUN