Kenzou Yoshihara

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Kounosu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Track seek method and device for use with an optical information re...
- Patent number 5,515,349
- Issue date May 7, 1996
- Nippon Conlux Co., Ltd.
- Koichi Yamazaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Card type recording medium and method of preventing a false use the...
- Patent number 5,270,526
- Issue date Dec 14, 1993
- Nippon Conlux Co., Ltd.
- Kenzou Yoshihara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System for preventing a false use of a card type recording medium a...
- Patent number 5,231,276
- Issue date Jul 27, 1993
- Nippon Conlux Co., Ltd.
- Kenzou Yoshihara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for discriminating authenticity of a bill using polarization...
- Patent number 4,990,790
- Issue date Feb 5, 1991
- Nippon Conlux Co., Ltd.
- Kenzou Yoshihara
- G07 - CHECKING-DEVICES