Tamotu Kato

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Chichibu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Spherical body and method of manufacture
- Patent number 6,336,871
- Issue date Jan 8, 2002
- Bridgestone Sports Co., Ltd.
- Keisuke Ihara
- A63 - SPORTS GAMES AMUSEMENTS
Information Patent Grant
Spherical body and method of manufacture
- Patent number 6,136,125
- Issue date Oct 24, 2000
- Bridgestone Sports Co., Ltd.
- Keisuke Ihara
- A63 - SPORTS GAMES AMUSEMENTS