Company Outline

Message

代表取締役社長 大森義勝

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 it was founded in 1967, Yamamoto Seisakusho has done its best to steadily deliver products that are a perfect match for the needs of its customers as one of the leading fineblanking companies. As a company that has fulfilled its mission for many years and continued to maintain the trust of its customers, we are proud of our technological expertise that helps us open the future and for our human resources that are the result of our education program. In addition to our four domestic facilities [Head office plant,Head office second plant, Yamagata plant and Ena plant], we have also established Yamamoto FB Engineering, Inc. in Kentucky in the United States. We produce high precision, pressed parts, mainly with the latest fineblanking machines, with very little deviation in specifications. In addition to providing a stable supply of high quality products, Yamamoto Seisakusho is also focusing on reducing delivery times. By consolidating every part of production from receiving orders, designing dies, mass production and to delivery of products, and increasing the speed of communicating information between our facilities, including those in the United States, we are able to greatly reduce our delivery times. We hope to remain a leading company in the fineblanking and pressing die fields by maintaining an environment in which all of our employees can demonstrate their abilities in safe and secure conditions.


President 

Yoshikatsu Ohmori

Company Profile

Company NameYamamoto Seisakusho, Inc.
Headquarters88-26, Shingo,Higashimatsuyama-shi, Saitama 355-0071
FoundingSeptember 1967
Capital98 million yen
PresidentYoshikatsu Ohmori
Line of business
  • 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

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.
2015
Appointed Yoshikatsu Ohmori as President.

Officer

ChairmanTakeshi Morita
President & CEO Yoshikatsu Ohmori
Vice PresidentYasushi Okubo
Managing DirectorMasakazu Okumura
DirectorTakao Hayashi
DirectorNobuhiro Mantani
DirectorYasuhiro Asai
Managing Executive Officer Noboru Masaki
Managing Executive Officer Masataka Matufuji
Executive OfficerSeiji Chikuma
AuditorTakashi Oiwa
AuditorHidekazu Hattori

Sales(Domestic)

Sales Revenue(Simple Substance)

Sales(Consolidated)

Sales Revenue(Consolidated)

Factory&Plant

Factory&Plant