Tomohiro Sugiura

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic apparatus and telephone conversation apparatus
- Patent number 7,929,725
- Issue date Apr 19, 2011
- Mitsubishi Denki Engineering Kabushiki Kaisha
- Tomohiro Sugiura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Acoustic apparatus and telephone conversation apparatus
- Publication number 20090067639
- Publication date Mar 12, 2009
- Mitsubishi Denki Engineering Kabushiki Kaisha
- Tomohiro Sugiura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE