Company overview

Company information

外観 Mitoyo group is global companies group which suggests new concept, advanced technology and new material to all over the world.


Company name Mitoyo-seiko co., ltd.
Capital 30 million yen
Directors Representative director:Masaru Taira
Chairman: Satoshi Taira
Executive Director: Masahide Kondo
Establishment June 25, 1965
Address 〒 192-0045 2-21-8, Owadamachi, Hachioji-city, Tokyo, Japan
Line of business ・Various assemble
・Machining, pressing, cold and heat forging
・Parts processing by resin molding
・Industrial equipment (design, production, and installation) (Automatic screw machine etc)
Customer's industrial category ・Automobile maker
・Office automation equipment
・Communication equipment
・Light electric appearances
Main customers
IJTT Co., Ltd.
Agilent Technologies Co., Ltd.
JAS Co., Ltd.
Elematec Corporation
OMRON Corporation
Olympus Corpotation
Marell Corporation
Kanto Kasei Co., Ltd.
Konica Minolta Holdings
Kotobuki Seating Co., Ltd.
Hitachi Astemo CORPORATION
Tachi-S Co., Ltd.
Tateyama Kagaku Co., Ltd.
Tsubakimoto Chain Co.
TEAC Corporation
Nifco Inc.
Nifco UK Limited
Nippon Rokaki Co.,Ltd.
Panasonic Corporation
Pearl Musical Instrument Co.
Nippon Rokaki Co., Ltd.
MinebeaMitsumi Inc.
Yamaha Motor Co., Ltd.
Yanmar Co., Ltd.
RECARO Japan Co.,Ltd.
Showa Aircraft Industry CO.,Ltd.
The number of employees 33 people
Bankers Mizuho Bank Hachioji Branch
The Tama Shinkin Bank head office
Japan finance corporation Tachikawa Branch
Shoko Chukin Bank Hachioji Branch

Access map

By car …  From Koshu road Route 20, turn left at Ishikawa entrance and turn right at coffee laboratory.
By train … 9-minutes walk from JR Hachiko Line "Kitahachioji" station.


July, 2020

Masaru Taira was inducted as representative director.

July, 2015

Established office in Shanghai.

August, 2013 Head office of JC co., ltd was moved.
May, 2010 Factory was established in Agatsuma-district, Gunma prefecture.
January, 2010 Head office was moved to present location.
February, 2009 Capital was increased to 30 million yen.
December, 2006 Obtained ISO14001 certification.
May, 2006 was established in Shenzhen city, China.
March, 2005 Took over Houwa co., ltd.
July, 2004 Capital was increased to 20 million yen.
June, 2004 Established JCH LIMITED in Hong Kong.
April, 2004 Obtained ISO9001 certification
April, 2004 Established office in Shenzhen city.
March, 2004 Satoshi Taira was inducted as representative director.
September, 1989 Head office was moved to Ishikawa cho, Hachioji city.
September, 1989 Shigeru Taira was inducted as representative director.
June, 1989 Established JC co., ltd.
At the same time started trading department
(Established office in Owadamachi, Hachioji-city)
Started oversea production and to import office automation components and camera parts.
January, 1982 Company name was changed to Mitoyo-seiko co., ltd.
Started business for press parts, assemble of office automation components.
January, 1974 Moved to Owadamachi, Hachioji-city.
Started to produce and sell special automobile components.
June, 1965 Sales department was independented from Mitoyo industry co., ltd.
Mitoyo screw co., ltd. was established in Tachikawa-city by Toyokazu Hashimoto.
Line of business;  Production and sales of screws.