Shoichi Akutsu

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Hands-free phone-call device and tone quality control device
- Patent number 8,280,450
- Issue date Oct 2, 2012
- Clarion Co., Ltd.
- Seiichi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Hands-free phone-call device and tone quality control device
- Publication number 20100004034
- Publication date Jan 7, 2010
- Clarion Co., Ltd.
- Seiichi Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE