Kazuharu Kawata

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Yamagata, JP

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Patents Grantslast 30 patents

Information Patent Grant
Vibrating body for speaker device and speaker device
- Patent number 9,635,463
- Issue date Apr 25, 2017
- Pioneer Corporation
- Kazuharu Kawata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Speaker diaphragm and production method for speaker diaphragm
- Patent number 9,521,490
- Issue date Dec 13, 2016
- Pioneer Corporation
- Kazuharu Kawata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
VIBRATING BODY FOR SPEAKER DEVICE AND SPEAKER DEVICE
- Publication number 20160037262
- Publication date Feb 4, 2016
- PIONEER CORPORATION
- Kazuharu KAWATA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SPEAKER DIAPHRAGM AND PRODUCTION METHOD FOR SPEAKER DIAPHRAGM
- Publication number 20150010197
- Publication date Jan 8, 2015
- PIONEER CORPORATION
- Kazuharu Kawata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Speaker diaphragm and method of forming the same
- Publication number 20060062423
- Publication date Mar 23, 2006
- Kazuharu Kawata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Speaker component, method of manufacturing the same and speaker app...
- Publication number 20050178516
- Publication date Aug 18, 2005
- PIONEER CORPORATION
- Hideo Sekikawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE