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Incorporated September, 1921
Location 1-104 Horinouchi-cho Minami-ku Yokohama 232-0042 JAPAN 【map】
TEL.+81-45-713-2361 FAX.+81-45-712-3129
Capitalization 43.2 million yen
Business items Manufacturing of gears and precision machined parts
Directors Chairman   Yoichi Oishi
President    Keiichiro Oishi
Managing Director    Yuichiro Uekusa
Site area 4,000m2
Buildings Reinforced concrete construction with foldedplate roof and slate square corrugated iron sheet external walls (1,500m2)
2-story/steel-frame construction(2,000m2)
Equipment Electric Cranes:
5-ton,3-ton,and 2-ton
12units in total
Bankers Sumitomo Mitsui Banking Corporation
Mizuho Bank,Ltd.
The Bank of Tokyo-Mitsubishi UFJ,Ltd.
Bank of Yokohama


1921 The company was established under the name of NAKANISHI TEKKOSYO in Nakamura-cho,Minami-ku,Yokohama City.
1938 The factory was moved to the present address and the company was renamed NAKANISHI GEAR CO.
1944 The company was reorganized into a joint-stock company with a capital of 180thousand yen(¥180,000)(fully paid up)and was renamed NAKANISHI GEAR CO.,LTD.
1975 A rolling gear tester for large worm wheels was newly installed to meet the needs for gears of higher accuracy.
1978 In view of the importance of gear grinding,a gear grinding machine was introduced.
1984 Capital increased to 43.2 million yen (\43,200,000)(fully paid up).
A factory of reinforced concrete construction was newly build in the company-owned land contiguous to the old factory and all the existing items of equipment in the old factory were moved to the new factory and put into operation.
1992 A worm thread grinding machine,a gear tester,etc.were replaced with new ones. Gear grinding machines are also in an age of NC.
1993 Two units of NC gear hobbing machines were purchased,this making it possible to adopt various ways of gear cutting having so far been considered impossible.
1997 A new company office building was constructed in the land contiguous to the new factory.
1998 A CNC profile grinding machine was purchased,thus making it possible to measure the accuracy of gears on the machine.
2001 Entered upon the 80th year since the establishment.
2002 The company got ISO 9001:2000 approval.
2003 Vertical Lathe was newly installed.
2007 The company extended main factory and their area had doubled.