Akira Matsubara

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Communication system, communication management system and method
- Patent number 7,113,571
- Issue date Sep 26, 2006
- Sony Corporation
- Akira Matsubara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Automatic telephone answering apparatus
- Patent number 5,081,672
- Issue date Jan 14, 1992
- Sony Corporation
- Satoshi Mita
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method for permitting reproduction of content file and recorded med...
- Publication number 20030135545
- Publication date Jul 17, 2003
- Bunichiroh Fujii
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Communication system, communication management system and method
- Publication number 20010022788
- Publication date Sep 20, 2001
- Akira Matsubara
- G06 - COMPUTING CALCULATING COUNTING