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Jun-ichi Hirakata
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Chiba, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Liquid crystal display device
Patent number
7,245,336
Issue date
Jul 17, 2007
Hitachi, Ltd.
Ikuo Hiyama
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device having particular reflective polarizer
Patent number
7,006,173
Issue date
Feb 28, 2006
Hitachi, Ltd.
Ikuo Hiyama
G02 - OPTICS
Information
Patent Grant
Reflective liquid crystal display device
Patent number
5,841,496
Issue date
Nov 24, 1998
Hitachi, Ltd.
Osamu Itoh
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Dot-matrix type display device
Patent number
5,313,293
Issue date
May 17, 1994
Hitachi, Ltd.
Jun-ichi Hirakata
G02 - OPTICS
Information
Patent Grant
Supertwisted, nematic liquid crystal display device with LC birefri...
Patent number
5,291,322
Issue date
Mar 1, 1994
Hitachi, Ltd.
Osamu Itoh
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device using nematic liquid crystal having t...
Patent number
4,906,073
Issue date
Mar 6, 1990
Hitachi, Ltd.
Katuyuki Hunahata
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Liquid crystal display device
Publication number
20060125978
Publication date
Jun 15, 2006
Ikuo Hiyama
G02 - OPTICS