TOMOYUKI MATSUNAGA

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Okayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Loudspeaker and electronic apparatus using the loudspeaker
- Patent number 9,769,571
- Issue date Sep 19, 2017
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Akira Asano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sound playback device and electronic device using same
- Patent number 9,042,593
- Issue date May 26, 2015
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Tomoyuki Matsunaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
LOUDSPEAKER AND ELECTRONIC APPARATUS USING THE LOUDSPEAKER
- Publication number 20150373457
- Publication date Dec 24, 2015
- Panasonic Intellectual Property Management Co., Ltd.
- AKIRA ASANO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SOUND PLAYBACK DEVICE AND ELECTRONIC DEVICE USING SAME
- Publication number 20140355811
- Publication date Dec 4, 2014
- Tomoyuki Matsunaga
- H04 - ELECTRIC COMMUNICATION TECHNIQUE