Osamu Koshida

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Plug, sound inputting and outputting apparatus, and noise cancel sy...
- Patent number 8,041,047
- Issue date Oct 18, 2011
- Sony Corporation
- Ryota Matsumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Plug
- Patent number 7,553,195
- Issue date Jun 30, 2009
- Sony Corporation
- Ryota Matsumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Plug, sound inputting and outputting apparatus, and noise cancel sy...
- Publication number 20080226091
- Publication date Sep 18, 2008
- SONY CORPORATION
- Ryota Matsumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Plug
- Publication number 20080090465
- Publication date Apr 17, 2008
- SONY CORPORATION
- Ryota Matsumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE