Kotaro MIZUNO

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Hamamatsu-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Speaker unit and speaker unit mounting structure
- Patent number 8,899,374
- Issue date Dec 2, 2014
- Yamaha Corporation
- Katsuya Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SPEAKER UNIT AND SPEAKER UNIT MOUNTING STRUCTURE
- Publication number 20130327586
- Publication date Dec 12, 2013
- Katsuya TANAKA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE