Seiichi Kotani

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Kasai-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hypoid ring gear for differentials and method of producing the same
- Patent number 6,711,817
- Issue date Mar 30, 2004
- Seiichi Kotani
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Hypoid ring gear for differentials and method of producing the same
- Publication number 20010005938
- Publication date Jul 5, 2001
- Seiichi Kotani
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...