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Hamura, JP
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last 30 patents
Information
Patent Grant
LCD device with polarizers having polarizing and transmittance char...
Patent number
6,014,195
Issue date
Jan 11, 2000
Casio Computer Co., Ltd.
Katsuhito Sakamoto
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Birifringence control type liquid crystal display device and appara...
Patent number
5,796,378
Issue date
Aug 18, 1998
Casio Computer Co., Ltd.
Tetsushi Yoshida
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Color liquid crystal display device and liquid crystal display appa...
Patent number
5,745,200
Issue date
Apr 28, 1998
Casio Computer Co., Ltd.
Zenta Kikuchi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Color liquid crystal display device with optical axes of retardatio...
Patent number
5,737,047
Issue date
Apr 7, 1998
Casio Computer Co., Ltd.
Katsuhito Sakamoto
G02 - OPTICS
Information
Patent Grant
Color liquid crystal apparatus
Patent number
5,724,112
Issue date
Mar 3, 1998
Casio Computer Co., Ltd.
Tetsushi Yoshida
G02 - OPTICS
Information
Patent Grant
Reflective liquid crystal display device
Patent number
5,680,188
Issue date
Oct 21, 1997
Casio Computer Co., Ltd.
Tetsushi Yoshida
G02 - OPTICS
Information
Patent Grant
Active matrix polymer dispersed liquid crystal display device with...
Patent number
5,629,783
Issue date
May 13, 1997
Casio Computer Co., Ltd.
Minoru Kanbara
G02 - OPTICS
Information
Patent Grant
Polymer dispersed liquid crystal display device
Patent number
5,559,615
Issue date
Sep 24, 1996
Casio Computer Co., Ltd.
Jiro Takei
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device
Patent number
5,548,426
Issue date
Aug 20, 1996
Casio Computer Co., Ltd.
Takashi Miyashita
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device with 2 adjacent biaxial retardation p...
Patent number
5,440,413
Issue date
Aug 8, 1995
Casio Computer Co., Ltd.
Zenta Kikuchi
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device with at least one biaxial retardation...
Patent number
5,227,903
Issue date
Jul 13, 1993
Casio Computer Co., Ltd.
Yoshinaga Miyazawa
G02 - OPTICS
Information
Patent Grant
Twisted nematic liquid crystal display device with retardation plat...
Patent number
5,184,236
Issue date
Feb 2, 1993
Casio Computer Co., Ltd.
Takashi Miyashita
G02 - OPTICS