Yoshihide Koyama

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Acoustic device
- Patent number 7,783,059
- Issue date Aug 24, 2010
- Clarion Co., Ltd.
- Kuniko Yamasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Audio playback device capable of independent operations in dual modes
- Patent number 7,564,983
- Issue date Jul 21, 2009
- Clarion Co., Ltd.
- Akira Ibuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Play-back device
- Patent number 7,436,738
- Issue date Oct 14, 2008
- Clarion Co., Ltd.
- Kuniko Yamasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Automatic adjustment system and automatic adjustment method for aud...
- Patent number 5,581,621
- Issue date Dec 3, 1996
- Clarion Co., Ltd.
- Yoshihide Koyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Acoustic device
- Publication number 20040125694
- Publication date Jul 1, 2004
- Clarion Co., Ltd.
- Kuniko Yamasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Play-back device
- Publication number 20040125703
- Publication date Jul 1, 2004
- Clarion Co., Ltd.
- Akira Ibuka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Play-back device
- Publication number 20040106392
- Publication date Jun 3, 2004
- Clarion Co., Ltd.
- Kuniko Yamasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE