Kiyoshi Tamai

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Patents Grantslast 30 patents

Information Patent Grant
Method of driving passive matrix liquid crystal display
- Patent number 6,346,774
- Issue date Feb 12, 2002
- Optrex Corporation
- Kiyoshi Tamai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Driving device and liquid crystal display device
- Patent number 6,340,964
- Issue date Jan 22, 2002
- Optrex Corporation
- Akira Nakazawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS