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Company profile

Management basic policy

Our company pursues and aims at the spirit of independence and self-reliance throughout the company, where everyone tries to improve the level of processing technology, thereby keeping characteristics of skills superior to others and making it possible to cope with a wide variety of processing work.

Company profile

Company name SANKO MFG CO., LTD.
Address 3-9, Yasumatsu, Shippo Town, Ama City, Aichi Prefecture 497-0011, Japan
Telephone +81-52-442-0569
Facsimile +81-52-442-9594
Start of business 1956
Foundation 8th March 1956
Capital 30 million yen
Sales 629 million yen (Fiscal 2009)
Employees 53 (as of April 2012)
Representative President Kiyoshi Okumura
Major customers Nagoya Guidance & Propulsion System Works of Mitsubishi Heavy Industries, Ltd.
Aichi Tokei Denki Co., Ltd.
Daicel Chemical Industries, Ltd.
Major line of business Manufacturing parts for rocket/aircraft engines, aeronautical hydraulic equipments, etc.
(Examples: Ultra-precision parts for the LE-5B/LE-7A engines of the launch vehicles for weather satellite and communications satellite, Precision parts for hydraulic equipments for aircraft flight control system, etc.)


1956 Opened Okumura Iron Works in Furusawa town, Naka-ku, Nagoya.
1959 Established Sanko Manufacturing, a limited partnership company, in Ogashira Town, Atsuta-ku, Nagoya.
1967 Changed the company from a limited partnership company to a limited liable company and established SANKO MFG CO., LTD.
1970 Moved the plant to Shippo Town in Ama County.
1974 Manufacturing of parts started for aircraft engine and hydraulic equipments.
1975 Joined in the development of rocket at the stage of manufacturing trial samples.
1983 Established the second plant.
1989 Southern plant was established.
1991 Western plant was established.
1993 A new plant was established for electrical discharge machining.
1999 Northern plant was established.
2000 Increased the capital after approval by a business investment & consultation corporation.
2003 New Tsushima plant was established.
2011 Established a new main plant after integrating each plants.


ISO 9001
JIS Q 9100

Major customers

Main plant

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三光製作所 詳細地図

・About 20 minutes by car from Nagoya station (10km towards the west)
・About 5 minutes by taxi, after getting off at the 'Shippo station' of the Meitetsu Tsushima line.
・About 15 minutes on foot, after getting off at a bus stop 'Yasumatsu' of the Tsushima line from the Meitetsu bus center in Nagoya.
・About 5 minutes by car from the exit 'Oharu Kita IC" of the Nagoya second ring road, clockwise direction.
・When our location is searched by a car navigation system, using our telephone number, you may be guided to our old factory.
・Our new location is at the sourthern side of the Miwa Senior High School by Aichi Prefecture. Please use this school for your navigation. Thank you.