Hiroaki Tohyama

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Kumamoto-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Mold for casting and method for manufacture thereof
- Patent number 7,497,243
- Issue date Mar 3, 2009
- Honda Motor Co., Ltd.
- Hiroaki Koyama
- B22 - CASTING POWDER METALLURGY

Patents Applicationslast 30 patents

Information Patent Application
Mold for casting and method for manufacture thereof
- Publication number 20060151139
- Publication date Jul 13, 2006
- Hiroaki Koyama
- B22 - CASTING POWDER METALLURGY