DEDICATED AND UNITED AS 'ONE TEAM'

At KSK, our aspiration is to fulfill a meaningful role in this world - both through our manufacturing and our broader contribution to society. We will continue to make improvements, develop new technologies and products, and stay true to our philosophy of harmonious cooperation.

Greetings and History

Message from our CEO

Committed to Making a Difference to Industry and Society

Since its founding in 1960, KSK has specialized in manufacturing vehicle drivetrain components by constantly enhancing its technological and manufacturing capabilities through continuous improvement in its efforts to become a company that can have a significant contribution to society, as well as a company where all employees are glad to work.
 

The automotive industry is in the midst of a once-in-a-century transformation with the speed of this change accelerating at an unprecedented pace. Rather than viewing these changes as a threat, we see them as an opportunity to create and pioneer new product areas beyond the conventional boundaries and will continue to develop high-quality, technologically advanced products that create new value while at the same time doing what’s necessary to tackle the important issue of global warming.
 

Faithful to our motto of "Manufacturing based on wisdom and the five senses," we will continue to improve, create the conditions for a stronger KSK, and strive to be a company where every employee has a smile on their face and which is regarded as a trustworthy and much-needed partner by customers and local communities.
 

Thank you for your continued support.
 

Kiyotaka Ishikawa
President and CEO of Keihin Seimitsu Kogyo Co., Ltd. 
 

History

Team Work, Kaizen and a Dedication to Manufacturing

Our company was founded in 1960 and we have have been advancing step by step ever since. 
What has enabled us to survive and to grow over the past 60 years? Team Work, Kaizen and a Dedication to Manufacturing.

1960

Founding of Keihin Seimitsu Kogyo Co., Ltd.

1970

Start of Operations (SOP) at Tochigi Plant (now Kanuma Plant)

1986

SOP at Hokkaido Plant

1997

SOP at PT. Nusa Keihin Indonesia (Joint Venture)

1999

TPM Outstanding Performance Award Acquired

2000/2001

ISO 14001 / ISO 9001
Certification Acquired

2005

ISO / TS16949
Certification Acquired

2010

Special TPM Award Acquired

2013

SOP of One-Piece Flow Line, SOP of Plastic-Flow Binding Technology

2014

Technical Development Award from Toyota, and Excellence in Consistent TPM Commitment Award

2018

IATF16949
Certification Acquired

2019

SOP at Ootawara Plant

1960

Founding of Keihin Seimitsu Kogyo Co., Ltd.

1970

Start of Operations (SOP) at Tochigi Plant (now Kanuma Plant)

1986

SOP at Hokkaido Plant

1997

SOP at PT. Nusa Keihin Indonesia (Joint Venture)

1999

TPM Outstanding Performance Award Acquired

2000/2001

ISO 14001 / ISO 9001
Certification Acquired

2005

ISO / TS16949
Certification Acquired

2010

Special TPM Award Acquired

2013

SOP of One-Piece Flow Line, SOP of Plastic-Flow Binding Technology

2014

Technical Development Award from Toyota, and Excellence in Consistent TPM Commitment Award

2018

IATF16949
Certification Acquired

2019

SOP at Ootawara Plant

Company Profile (data as of 2025)

Company Name

Keihin Seimitsu Kogyo Co., Ltd.

Established

August 15, 1960

Capital

99 mil. JPY

President & CEO

Kiyotaka Ishikawa

Employees

450
(as of end of January 2025)

Sales

12.2 bil. JPY

Machines

1,478

Certifications

ISO 9001
IATF 16949
ISO 14001

Company Name

Keihin Seimitsu Kogyo Co., Ltd.

Established

August 15, 1960

Capital

99 mil. JPY

President & CEO

Kiyotaka Ishikawa

Employees

450
(as of end of January 2025)

Sales

12.2 bil. JPY

Machines

1,478

Certifications

ISO 9001
IATF 16949
ISO 14001

Our Products

  • Aluminum Die-cast Parts for HV, PHV and FCV
  • High-strength, High-precision Aluminum Die-cast Parts
  • Aluminum Die-cast Parts for Automatic Transmissions
  • Gear Shift Lever Assemblies
  • Mission Courtland Box Assemblies
  • Power Shift Assemblies
  • Various Engine Parts 
  • Other Various Automobile Parts

Our Customers

  • AISIN Corporation
  • AISIN Hokkaido Co., Ltd.
  • Daihatsu Motor Co., Ltd.
  • Denso Corporation
  • Dynax Corporation
  • Ezaki Industrial Co. Ltd.
  • Hino Motor Ltd.
  • IJTT Co., Ltd.
  • Isuzu Motors Limited
  • MAHLE Japan Ltd.
  • Mitsubishi Fuso Truck and Bus Corporation
  • ThyssenKrupp Presta AG
  • Tokyo Radiator MFG. Co., Ltd.
  • Toyota Motor Corporation
  • UD Trucks Corporation

    (in alphabetical order)

Organization Membership

  • Japan Auto Parts Industries Association
  • Japan Institute of Plant Maintenance
  • Hokkaido Machinery Manufacturers Association
  • The Japan Chamber of Commerce and Industry

Head Office and Factories

Head office2-12-4 Irie Kanagawa-ku Yokohama-shi Kanagawa Prefecture 221-0014JapanTel: (+81) 45-401-4721Fax: (+81) 45-421-6821> Check on Google Maps Kanuma plant10-1 Satsuki-choKanuma-shi Tochigi Prefecture 322-0014 JapanTel: (+81) 289-76-2141Fax: (+81) 289-76-2145> Check on Google MapsOotawara plantShimoishigamiOotawaraTochigi Prefecture 324-0036 JapanTel: (+81) 287-47-4831Fax: (+81) 287-47-4832> Check on Google Maps PT NUSA KEIHIN INDONESIAJL. Selayar II Blok D7-1 Kawasan Industri MM2100 Cibitung-Bekasi 17845 Jawa BaratIndonesiaTel: (+62-21) 8984 4945/46Fax: (+62-21) 8984 4947> Check on Google Maps Europe Liaison Office RD interlogueDr. Roman Ditzerc/o EQSSt. Annenufer 520457 HamburgGermanyTel: (+49) 40 3861 8956Fax: (+49) 40 3861 8985> Check on Google Maps Hokkaido plant2-4 Yura Kurisawa-cho Iwamizawa-shi Hokkaido Prefecture 068-0111 JapanTel: (+81) 126-45-4433Fax: (+81) 126-45-2301> Check on Google Maps

Head Office

2-12-4 Irie Kanagawa-ku Yokohama-shi Kanagawa Prefecture 221-0014 Japan

Tel: 045-401-4721

Fax: 045-421-6821

> Check on Google Maps

 

Kanuma Plant

10-1 Satsuki-cho Kanuma-shi Tochigi Prefecture 322-0014 Japan

Tel: 0289-76-2141

Fax: 0289-76-2145

> Check on Google Maps

 

Ootawara Plant

Shimoishigami Ootawara Tochigi Prefecture 324-0036 Japan

Tel: 0287-47-4831

Fax: 0287-47-4832

> Check on Google Maps

 

Hokkaido Plant

2-4 Yura Kurisawa-cho Iwamizawa-shi Hokkaido Prefecture 068-0111 Japan

Tel: 0126-45-4433

Fax: 0126-45-2301

> Check on Google Maps

 

PT NUSA KEIHIN INDONESIA

JL. Selayar II Blok D7-1 Kawasan Industri

MM2100 Cibitung-Bekasi 17845 Jawa

Barat Indonesia

Tel: (+62-21) 8984 4945/46 

Fax: (+62-21) 8984 4947

> Check on Google Maps

 

Europe Liaison Office

RD interlogue

St. Annenufer 5 c/o K16 20457 Hamburg Germany

Tel: (+49) 40.3861 8956

Fax: (+49) 40.3861 8985

> Check on Google Maps

Find out more about us

Products

It is people who operate machines and assess quality. KSK has always focused on employees rather than technology. All the products we create are imbued with our spirit of 'creation based on intelligence and the five senses', as well as our Kaizen skills.

Learn more

Technology

KSK has always forged ahead with its own in-house developments, focusing on product development, production technologies and manufacturing methods. We continue to create new value through new products, new methods and new technologies.

Learn more

Kaizen

Employees capable of detecting waste (muda) and overstrain (muri) put their skills to use in Kaizen activities (CIP). This not only leads to products that customers are satisfied with; it also enables our staff to improve their 'human skills' and workplace competence on a daily basis.

Learn more