Kokichi Ito

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid crystal electro-optical element and process for preparation...
- Patent number 4,989,955
- Issue date Feb 5, 1991
- Toray Industries, Inc.
- Kokichi Ito
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Liquid crystal element
- Patent number 4,939,003
- Issue date Jul 3, 1990
- Toray Industries, Inc.
- Takao Aoki
- G02 - OPTICS
Information Patent Grant
Ferro-electric liquid crystal electro-optical device having a drive...
- Patent number 4,793,693
- Issue date Dec 27, 1988
- Seiko Instruments, Inc.
- Sadashi Shimoda
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Ferroelectric liquid crystal electro-optical device having half-sel...
- Patent number 4,762,400
- Issue date Aug 9, 1988
- Seiko Instruments Inc.
- Sadashi Shimoda
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Ferro-electric liquid crystal electro-optical device
- Patent number 4,662,721
- Issue date May 5, 1987
- Seiko Instruments & Electronics Ltd.
- Takamasa Harada
- G02 - OPTICS