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Futoshi Yamasaki
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Zushi-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Light source unit and projection type video display apparatus using...
Patent number
7,806,566
Issue date
Oct 5, 2010
Hitachi, Ltd.
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image display apparatus forming optical image by irradiating light...
Patent number
7,410,264
Issue date
Aug 12, 2008
Hitachi, Ltd.
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image display device
Patent number
7,232,227
Issue date
Jun 19, 2007
Hitachi, Ltd.
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection type video display apparatus
Patent number
7,220,005
Issue date
May 22, 2007
Hitachi, Ltd.
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection display
Patent number
7,207,680
Issue date
Apr 24, 2007
Hitachi, Ltd.
Futoshi Yamasaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Liquid crystal projector, and projection lens unit, optical unit an...
Patent number
7,152,978
Issue date
Dec 26, 2006
Hitachi, Ltd., and Hitachi Video and Information Systems, Inc.
Nobuhiko Konuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Projection type image display apparatus
Patent number
6,987,546
Issue date
Jan 17, 2006
Hitachi, Ltd.
Satoshi Ouchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical unit and projection type projector apparatus using the same
Patent number
6,945,651
Issue date
Sep 20, 2005
Hitachi, Ltd.
Masahiko Yatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection apparatus and projection-type image display apparatus
Patent number
6,905,213
Issue date
Jun 14, 2005
Hitachi, Ltd.
Koji Hirata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection display
Patent number
6,854,851
Issue date
Feb 15, 2005
Hitachi, Ltd.
Futoshi Yamasaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical unit and projection type projector apparatus using the same
Patent number
6,832,836
Issue date
Dec 21, 2004
Hitachi, Ltd.
Masahiko Yatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Liquid crystal projector, and projection lens unit, optical unit an...
Patent number
6,824,273
Issue date
Nov 30, 2004
Hitachi, Ltd.
Nobuhiko Konuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Projection apparatus and projection-type image display apparatus
Patent number
6,783,242
Issue date
Aug 31, 2004
Hitachi, Ltd.
Koji Hirata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Liquid crystal projector, and projection lens unit, optical unit an...
Patent number
6,783,245
Issue date
Aug 31, 2004
Hitachi Ltd.
Nobuhiko Konuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Liquid crystal display element and micro-lens arrangement and a dis...
Patent number
RE38175
Issue date
Jul 8, 2003
Hitachi, Ltd.
Yoshio Ariki
349 - Liquid crystal cells, elements and systems
Information
Patent Grant
Projection type liquid crystal display device
Patent number
6,351,295
Issue date
Feb 26, 2002
Hitachi, Ltd.
Takashi Kakuda
G02 - OPTICS
Information
Patent Grant
Projection type liquid crystal display device
Patent number
6,307,601
Issue date
Oct 23, 2001
Hitachi, Ltd.
Takashi Kakuda
G02 - OPTICS
Information
Patent Grant
Liquid crystal projector, and projection lens unit, optical unit an...
Patent number
6,290,360
Issue date
Sep 18, 2001
Hitachi, Ltd.
Nobuhiko Konuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Liquid crystal display element and micro-lens arrangement and a dis...
Patent number
5,684,548
Issue date
Nov 4, 1997
Hitachi, Ltd.
Yoshio Ariki
G02 - OPTICS
Information
Patent Grant
Illumination unit for liquid crystal projection display apparatus a...
Patent number
5,491,525
Issue date
Feb 13, 1996
Hitachi, Ltd.
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Liquid crystal display with pixel shape same as image of light sour...
Patent number
5,455,694
Issue date
Oct 3, 1995
Hitachi, Ltd.
Yoshio Ariki
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Image display device
Publication number
20050280783
Publication date
Dec 22, 2005
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Image display device and light source unit therefor
Publication number
20050248518
Publication date
Nov 10, 2005
Futoshi Yamasaki
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Image display apparatus
Publication number
20050237488
Publication date
Oct 27, 2005
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Semiconductor light-emitting device and video display adopting it
Publication number
20050219464
Publication date
Oct 6, 2005
Hitachi, Ltd
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Light source unit and projection type video display apparatus using...
Publication number
20050190307
Publication date
Sep 1, 2005
Hitachi, Ltd
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Projection type video display apparatus
Publication number
20050179873
Publication date
Aug 18, 2005
Hitachi, Ltd
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Projection-type image display apparatus
Publication number
20050122481
Publication date
Jun 9, 2005
Futoshi Yamasaki
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Projection display
Publication number
20050122483
Publication date
Jun 9, 2005
Futoshi Yamasaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Liquid crystal projector, and projection lens unit, optical unit an...
Publication number
20050083490
Publication date
Apr 21, 2005
Hitachi, Ltd.
Nobuhiko Konuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical unit and projection type projector apparatus using the same
Publication number
20050073652
Publication date
Apr 7, 2005
Hitachi, Ltd
Masahiko Yatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Projection apparatus and projection-type image display apparatus
Publication number
20040239882
Publication date
Dec 2, 2004
Hitachi, Ltd
Koji Hirata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Projection display
Publication number
20040080722
Publication date
Apr 29, 2004
Hitachi, Ltd.
Futoshi Yamasaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical unit and projection type projector apparatus using the same
Publication number
20030218724
Publication date
Nov 27, 2003
Hitachi, Ltd
Masahiko Yatsu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Liquid crystal projector, and projection lens unit, optical unit an...
Publication number
20030206276
Publication date
Nov 6, 2003
Hitachi, Ltd.
Nobuhiko Konuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Projection type image display apparatus
Publication number
20030169376
Publication date
Sep 11, 2003
Hitachi, Ltd.
Satoshi Ouchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Liquid crystal projector, and projection lens unit, optical unit an...
Publication number
20010008439
Publication date
Jul 19, 2001
Hitachi, Ltd.
Nobuhiko Konuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Projection type liquid crystal display device
Publication number
20010000056
Publication date
Mar 22, 2001
Takashi Kakuda
G02 - OPTICS