Seiichi HASHIMOTO

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Hamamatsu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speaker and speaker apparatus
- Patent number 8,073,187
- Issue date Dec 6, 2011
- Yamaha Corporation
- Seiichi Hashimoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SPEAKER AND SPEAKER APPARATUS
- Publication number 20090028374
- Publication date Jan 29, 2009
- Yamaha Corporation
- Seiichi HASHIMOTO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE