Yoshinari Yokochi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical pickup device and optical recording medium driving apparatus
- Patent number 7,239,596
- Issue date Jul 3, 2007
- Victor Company of Japan, Limited
- Ryo Saitoh
- G11 - INFORMATION STORAGE
Information Patent Grant
System of issuing card and system of certifying the card
- Patent number 6,527,173
- Issue date Mar 4, 2003
- Victor Company of Japan, Ltd.
- Kenji Narusawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Optical recording medium and apparatus of judging fake thereof
- Patent number 6,252,685
- Issue date Jun 26, 2001
- Victor Company of Japan, Ltd.
- Yoshinari Yokochi
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Optical pickup device and optical recording medium driving apparatus
- Publication number 20040233821
- Publication date Nov 25, 2004
- Ryo Saitoh
- G11 - INFORMATION STORAGE