Ryoji Sato

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Chiba, JP

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Patents Grantslast 30 patents

Information Patent Grant
Sintered gear
- Patent number 7,556,864
- Issue date Jul 7, 2009
- Hitachi Powdered Metals Co., Ltd.
- Yuji Yamanishi
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Sintered gear
- Publication number 20050272545
- Publication date Dec 8, 2005
- Yuji Yamanishi
- B22 - CASTING POWDER METALLURGY