Toshiharu Tajiri

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Portable electronic apparatus with improved audio quality through a...
- Patent number 7,746,627
- Issue date Jun 29, 2010
- Sony Corporation
- Koichi Yamaguchi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Portable electronic apparatus with improved audio quality through a...
- Patent number 7,576,983
- Issue date Aug 18, 2009
- Sony Corporation
- Koichi Yamaguchi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cordless telephone system having base unit with speaker
- Patent number 5,802,476
- Issue date Sep 1, 1998
- Sony Corporation
- Kazunori Nakajima
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
PORTABLE ELECTRONIC APPARATUS WITH IMPROVED AUDIO QUALITY THROUGH A...
- Publication number 20090262491
- Publication date Oct 22, 2009
- SONY CORPORATION
- Koichi YAMAGUCHI
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PORTABLE ELECTRONIC APPARATUS
- Publication number 20080062633
- Publication date Mar 13, 2008
- SONY CORPORATION
- Koichi YAMAGUCHI
- G06 - COMPUTING CALCULATING COUNTING