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Shuji Aruga
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Nagano, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Projection-type display device
Patent number
RE36725
Issue date
Jun 6, 2000
Seiko Epson Corporation
Tomio Sonehara
349 - Liquid crystal cells, elements and systems
Information
Patent Grant
Projection display employing circular polarized light for reflectio...
Patent number
6,005,644
Issue date
Dec 21, 1999
Seiko Epson Corporation
Shuji Aruga
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection-type display device
Patent number
5,241,407
Issue date
Aug 31, 1993
Seiko Epson Corporation
Tomio Sonehara
G02 - OPTICS
Information
Patent Grant
Projection-type display device
Patent number
5,075,798
Issue date
Dec 24, 1991
Seiko Epson Corporation
Tomio Sonehara
G02 - OPTICS
Information
Patent Grant
Projection-type display device
Patent number
5,073,013
Issue date
Dec 17, 1991
Seiko Epson Corporation
Tomio Sonehara
G02 - OPTICS
Information
Patent Grant
Projection-type display device
Patent number
4,995,702
Issue date
Feb 26, 1991
Seiko Epson Corporation
Shuji Aruga
G02 - OPTICS
Information
Patent Grant
Projection-type liquid crystal display device with even color
Patent number
4,904,061
Issue date
Feb 27, 1990
Seiko Epson Corporation
Shuji Aruga
G02 - OPTICS
Information
Patent Grant
Projection-type color display device
Patent number
4,850,685
Issue date
Jul 25, 1989
Seiko Epson Corporation
Hiroshi Kamakura
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
PIXEL CIRCUIT, LIQUID-CRYSTAL DEVICE, AND ELECTRONIC DEVICE
Publication number
20110205481
Publication date
Aug 25, 2011
SONY CORPORATION
Shuji Aruga
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
LIQUID CRYSTAL DEVICE AND ELECTRONIC APPARATUS
Publication number
20100045903
Publication date
Feb 25, 2010
SEIKO EPSON CORPORATION
Shuji ARUGA
G02 - OPTICS