Hiroaki Koyama

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Tool holder
- Patent number 8,597,086
- Issue date Dec 3, 2013
- Honda Motor Co., Ltd.
- Daisuke Noro
- B24 - GRINDING POLISHING
Information Patent Grant
Mold for casting and method of surface treatment thereof
- Patent number 7,600,556
- Issue date Oct 13, 2009
- Honda Motor Co., Ltd.
- Hiroaki Koyama
- B22 - CASTING POWDER METALLURGY
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
TOOL HOLDER
- Publication number 20110014854
- Publication date Jan 20, 2011
- Honda Motor Co., Ltd.
- Daisuke Noro
- B24 - GRINDING POLISHING
Information Patent Application
Mold for casting and method of surface treatment thereof
- Publication number 20060201650
- Publication date Sep 14, 2006
- Hiroaki Koyama
- B22 - CASTING POWDER METALLURGY
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