Hironobu Yamamoto

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Game ball
- Patent number 7,976,416
- Issue date Jul 12, 2011
- Tokyo Denki University
- Takehiko Kobayashi
- A63 - SPORTS GAMES AMUSEMENTS

Patents Applicationslast 30 patents

Information Patent Application
GAME BALL
- Publication number 20090111619
- Publication date Apr 30, 2009
- Takehiko Kobayashi
- A63 - SPORTS GAMES AMUSEMENTS