Akihiro Nishikawa

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Piezoelectric speaker, piezoelectric audio device employing piezoel...
- Patent number 9,031,265
- Issue date May 12, 2015
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Minoru Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
PIEZOELECTRIC SPEAKER, PIEZOELECTRIC AUDIO DEVICE EMPLOYING PIEZOEL...
- Publication number 20110255718
- Publication date Oct 20, 2011
- Panasonic Electric Works Co., Ltd.
- Minoru Fukushima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE