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Tatsumi Hasebe
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Hichisou, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Projection type image display device
Patent number
7,140,732
Issue date
Nov 28, 2006
Hitachi, Ltd.
Mikio Shiraishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Projector
Patent number
6,665,123
Issue date
Dec 16, 2003
Hitachi, Ltd.
Aki Nakajo
G02 - OPTICS
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Patent Grant
Multiprojection apparatus
Patent number
5,206,760
Issue date
Apr 27, 1993
Hitachi, Ltd.
Akio Nakashima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
Projection type image display device
Publication number
20040263792
Publication date
Dec 30, 2004
Hitachi, Ltd
Mikio Shiraishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Projector
Publication number
20020171938
Publication date
Nov 21, 2002
Aki Nakajo
G02 - OPTICS