Akira Katsuyama

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Yokahama-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Golf shaft, golf club, and production method for golf shaft
- Patent number 7,578,750
- Issue date Aug 25, 2009
- NHK Spring Co., Ltd.
- Toshiaki Sato
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Golf shaft, golf club, and production method for golf shaft
- Publication number 20080242438
- Publication date Oct 2, 2008
- NHK Spring Co., Ltd.
- Toshiaki Sato
- C21 - METALLURGY OF IRON