Horikoshi Seiki Co., Ltd. provides highly productive, multi-tasking operations\machining with our NC (numerical control) lathes and precision cutting with our machining centers and five-axis machining equipment. We eagerly support high-precision machining and high-mix production, even for small and medium size batches.

Horikoshi Seiki Co., Ltd.

1-16-1 Omori-nishi, Ota-ku, Tokyo 143-0015, Japan

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Company Information

General Outline

Company Name Horikoshi Seiki Co., Ltd.
Address 1-16-1 Omori-nishi, Ota-ku, Tokyo 143-0015, Japan
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URL http://www.horikoshi-seiki.co.jp/
President Hideaki Horikoshi
TEL 81-3-3761-5533
Capital 16 million yen
Number of Employees 41
Sales 730 million yen (2008)

Corporate Philosophy

  • Contribute to society.
  • Continually enhance environment-friendly operations.
  • Create customer satisfaction.
  • Promote company prosperity.
  • Foster dynamic employees and a safe and stable employee lifestyle.

Business Contents

  • Cutting work centered on NC lathes and machining centers
  • Full-service, streamlined production services handling everything from machining and surface treatment to assembly

Major Products

  • Semiconductor manufacturing equipment
  • Liquid crystal manufacturing equipment
  • Optical instruments
  • Aerospace instruments
  • Industrial equipment
  • Measuring instruments

Main Clients

  • Canon Inc.
  • Mitsubishi Heavy Industries Ltd.
  • Hitachi, Ltd
  • Minebea Co., Ltd.
  • Sumitomo Heavy Industries, Ltd.

Company History

September 1955 Horikoshi Production Factory started up in Omori, Ota Ward.
June 1956 Horikoshi Production Factory, PLC established with 300 thousand yen in capital.
July 1960 Moved to current location, increased capital to one million yen.
June 1965 Increased capital to two million yen.
March 1968 Expanded factory facilities.
July 1969 Changed commercial name to Horikoshi Seiki Co., Ltd.
October 1970 Increased capital to four million yen.
May 1981 Integrated robot into NC (numerical control) lathe.
September 1981 Introduced high-cell.
June 1983 Increased capital to eight million yen.
May 1990 Introduced factory network and factory management system using optical fiber.
December 1991 Increased capital to 16 million yen.
August 1998 Established second factory.
September 1998 Started online ordering system.
February 2001 Recognized by Ota Ward as an gExcellent Factory.h
August 2004 Received ISO9001 Certification.

Acceptable CAD (Computer-aided Design) Formats

  • DXF (date exchange file), IGES (Initial Graphics Exchange Specification), NC (numerical control), etc.


For quotes and technical inquiries, please contact
  Mr. Hiroyasu Sato, Sales Representative
TEL 81-3-3761-5533
FAX 81-3-3763-7821
Please use our e-mail inquiry form for quotes and technical inquiries.
For general questions, please contact
  General Administration
TEL 81-3-3761-5533
FAX 81-3-3763-7821

Offering a totally seamless service, covering every step of the way, to create the high quality products you need.
Offering a totally seamless service, covering every step of the way, to create the high quality products you need. e-mail contact form
Only Ota Quality Registered Company
Horikoshi Seiki was honored to receive the g2007 Monozukuri Human Resource Education Award for Small and Medium Businesses in the Tokyo Areah from the Tokyo Metropolitan government. 2007 Monozukuri Human Resource Education Award for Small and Medium Businesses in the Tokyo Area

We receive the Monozukuri Human Resource Education Award.
The Tokyo Metropolitan Government bestowed on us this award in recognition of our original education and training system, human resource development system and high level of respect for our employees that have resulted in direct benefits and results in business operations.

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Major applications of Horikoshi Seiki machined parts

Industrial equipment, optical instruments, aerospace instruments, measuring instruments and semiconductor equipment.

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Horikoshi Seiki promotes quality control and environment control.

We actively integrate and apply IT to all operations, such as quality control, delivery management, outsourcing management, machining and CAD (computer-aided design)/CAM (computer-aided manufacturing).

We actively integrate and apply IT to all operations
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