Company Outline

Message

Continuing to build trust with our customers with our technological expertise and
human resources. These are the sources of growth at Yamamoto Seisakusho.

Ever since our founding in 1967, we here at Yamamoto have striven to deliver high-quality products to meet the various needs of our customers as one of the leading fineblanking companies.
We pride ourselves on continuing to earn the trust of our customers through our unique technical expertise and the employees we foster through our education programs.
Our three domestic facilities in Higashimatsuyama, Ena, and Sagae, and our US subsidiary in the state of Kentucky produce extremely precise, high value-added pressed parts using the latest fineblanking machines.
Streamlined communications between facilitates – including our factory in the United States – and centralized management that encompasses everything from receiving orders to die design, mass production, and product delivery enable us to significantly reduce delivery time.
We aim to continue creating environmentally responsible facilities where employees can demonstrate their abilities in a safe and secure workplace while continuing to respond meticulously to the needs of our changing society.


President 

Seiya Koike

Company Profile

Company NameYamamoto Seisakusho, Inc.
Headquarters88-26, Shingo,Higashimatsuyama-shi, Saitama 355-0071
FoundingSeptember 1967
Capital98 million yen
PresidentSeiya Koike
Line of business
  • Manufacture and sale of automobile-related safety and security parts, etc.
  • Precision automatic press processing
  • Fine blanking press working
  • Various precision molds sale
Main trading bank
  • Musashino Bank Higashimatsuyama Branch
  • Mizuho Bank Kawagoe Branch
  • Bank of Tokyo-Mitsubishi UFJ Nishi-lkebukuro Branch
  • Saitama Resona Bank Higashimatsuyama Branch
  • Ashikaga Bank Kumagaya Branch
  • Japan Finance Corporation Saitama Branch

History

1967
Founded Yamamoto Seisakusho, Inc.
Started the business on designing and manufacturing the precise automatic press dies mainly.
1969
Expanded the automatic press working plant and started the press working.
1971
The introduce a transfer press machine and concentrated on the business of the automatic press working.
1973
Developed the broaching system by the press machine.
1976
The introduce a wire EDM[Electric Discharge Machine], and Promoted the NC[Numerical Control] machining for the Press dies and expanding the sales of press dies by the Specialized business organization.
1977
Equipped a multi-forming machine and expanded the plastic working field.
1978
Moved to the present location in Higashimatsuyama Industrial complex. Changed the organization from a limited company to a corporation. And increased the capital to 30,000,000 yen.
1979
The introduce ESSA's 250t fineblanking press machine with the development of the fineblanking press dies, and advanced into the new field of pressworking.
1983
Expansion Feintool's 400t press machine.
1986
Expansion Mori IronWork's 250t and KawasakiYuko's 400t fineblanking press machines. Total seven fine-blanking press machines were available.
The introduce a N0.4Jig-grinder made by Mitsui Precision. And a temperature-controlled room at the same time construction work completed.
1993
Established YAMAGATA PLANT.
1994
The introduce Japan's largest 1200t fineblanking machine in the head office plant.
1995
Established an overseas affiliate [Yamamoto FB Engineering, Inc.] in Kentucky, USA
1996
Established the head office second plant
2001
Established ENA PLANT.
2003
Established Prototype Development Technology Center with Nippon Institute of Technology inside the university to make use of IT.
2003
Ena Plant expansion.
2006
Ena Plant Second expansion.
2008
Terminated joint reserch and development with Nippon Institute of Technology.
2015
Jointed Tochu Group.
2020
Appointed Seiya Koike as President.

Officer

President & CEO
Seiya Koike
Director
Takao Hayashi
Director
Takeshi Morita
DirectorNobuhiro Mantani
DirectorYasuhiro Asai
Director and Senior Adviser
Yoshikatsu Ohmori
Auditor
Takashi Oiwa
Auditor
Hidekazu Hattori

Sales(Domestic)

Sales Revenue(Simple Substance)

Sales(Consolidated)

Sales Revenue(Consolidated)

Factory&Plant

Factory&Plant