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Chigasaki-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of verifying semiconductor integrated circuit and design pro...
Patent number
7,979,821
Issue date
Jul 12, 2011
Renesas Electronics Corporation
Yasuo Otsuka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical equipment with at least first and second ventilation paths
Patent number
7,832,871
Issue date
Nov 16, 2010
Hitachi, Ltd.
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit design device and circuit design program
Patent number
7,571,409
Issue date
Aug 4, 2009
NEC Electronics Corporation
Yasuo Otsuka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Projection type display apparatus with ventilation
Patent number
7,441,904
Issue date
Oct 28, 2008
Hitachi, Ltd.
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical unit and image display apparatus
Patent number
7,327,520
Issue date
Feb 5, 2008
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection type display apparatus
Patent number
7,175,284
Issue date
Feb 13, 2007
Hitachi, Ltd.
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Optical unit and image display apparatus
Patent number
7,106,518
Issue date
Sep 12, 2006
Hiatchi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical apparatus
Patent number
7,021,768
Issue date
Apr 4, 2006
Hitachi, Ltd.
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical unit and image display apparatus
Patent number
6,963,453
Issue date
Nov 8, 2005
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image display mechanism and image display device
Patent number
6,908,198
Issue date
Jun 21, 2005
Hitachi, Ltd.
Mikio Shiraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Projection type display apparatus
Patent number
6,857,749
Issue date
Feb 22, 2005
Hitachi, Ltd.
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Liquid crystal display apparatus and optical device for use therein
Patent number
6,829,031
Issue date
Dec 7, 2004
Hitachi, Ltd.
Toru Numata
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
Image display mechanism and image display device
Patent number
6,817,720
Issue date
Nov 16, 2004
Hitachi, Ltd.
Mikio Shiraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Array lens, lighting optical system, optical unit and imaging appar...
Patent number
6,741,396
Issue date
May 25, 2004
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image display mechanism and image display device
Patent number
6,682,197
Issue date
Jan 27, 2004
Hitachi, Ltd.
Mikio Shiraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image display mechanism and image display device
Patent number
6,588,910
Issue date
Jul 8, 2003
Hitachi, Ltd.
Mikio Shiraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Array lens, lighting optical system, optical unit and imaging appar...
Patent number
6,567,218
Issue date
May 20, 2003
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Array lens, lighting optical system, optical unit and imaging appar...
Patent number
6,545,812
Issue date
Apr 8, 2003
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection display apparatus and projection lens device for use the...
Patent number
6,542,308
Issue date
Apr 1, 2003
Koji Hirata
G02 - OPTICS
Information
Patent Grant
Liquid crystal display apparatus having liquid crystal display elem...
Patent number
6,535,267
Issue date
Mar 18, 2003
Hitachi, Ltd.
Toru Numata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical apparatus
Patent number
6,431,710
Issue date
Aug 13, 2002
Hitachi, Ltd.
Kenji Fuse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Array lens, lighting optical system, optical unit and imaging appar...
Patent number
6,411,440
Issue date
Jun 25, 2002
Hitachi, Ltd.
Satoshi Ohuchi
G02 - OPTICS
Information
Patent Grant
Array lens, lighting optical system, optical unit and imaging appar...
Patent number
6,392,809
Issue date
May 21, 2002
Hitachi, Ltd.
Satoshi Ohuchi
G02 - OPTICS
Information
Patent Grant
Projection display apparatus and projection lens device for use the...
Patent number
6,299,313
Issue date
Oct 9, 2001
Hitachi, Ltd.
Koji Hirata
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
Optical equipment
Patent number
6,280,038
Issue date
Aug 28, 2001
Hitachi, Ltd.
Kenji Fuse
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Liquid crystal display apparatus and optical device for use therein
Patent number
6,256,083
Issue date
Jul 3, 2001
Hitachi, Ltd.
Toru Numata
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Optical apparatus
Publication number
20090059180
Publication date
Mar 5, 2009
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of verifying semiconductor integrated circuit and design pro...
Publication number
20080313585
Publication date
Dec 18, 2008
NEC Electronics Corporation
Yasuo Otsuka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Optical apparatus
Publication number
20070121082
Publication date
May 31, 2007
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Circuit design device and circuit design program
Publication number
20070006111
Publication date
Jan 4, 2007
NEC Electronics Corporation
Yasuo Otsuka
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Optical unit and image display apparatus
Publication number
20060256443
Publication date
Nov 16, 2006
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical apparatus
Publication number
20060164604
Publication date
Jul 27, 2006
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical unit and image display apparatus
Publication number
20060012883
Publication date
Jan 19, 2006
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical apparatus
Publication number
20050141215
Publication date
Jun 30, 2005
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Image display mechanism and image display device
Publication number
20050046808
Publication date
Mar 3, 2005
Hitachi, Ltd.
Mikio Shiraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Liquid crystal display apparatus and optical device for use therein
Publication number
20050001970
Publication date
Jan 6, 2005
Toru Numata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical unit and image display apparatus
Publication number
20040190147
Publication date
Sep 30, 2004
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Image display mechanism and image display device
Publication number
20040100621
Publication date
May 27, 2004
Hitachi, Ltd.
Mikio Shiraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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
Array lens, lighting optical system, optical unit and imaging appar...
Publication number
20030202250
Publication date
Oct 30, 2003
Hitachi, Ltd.
Satoshi Ohuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Image display mechanism and image display device
Publication number
20030197840
Publication date
Oct 23, 2003
Hitachi, Ltd.
Mikio Shiraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Liquid crystal display apparatus and optical device for use therein
Publication number
20030098944
Publication date
May 29, 2003
Hitachi, Ltd.
Toru Numata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Array lens, lighting optical system, optical unit and imaging appar...
Publication number
20020154412
Publication date
Oct 24, 2002
Hitachi, Ltd.
Satoshi Ohuchi
G02 - OPTICS
Information
Patent Application
Array lens, lighting optical system, optical unit and imaging appar...
Publication number
20020114079
Publication date
Aug 22, 2002
Satoshi Ohuchi
G02 - OPTICS
Information
Patent Application
Optical apparatus
Publication number
20020101570
Publication date
Aug 1, 2002
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Projection display apparatus and projection lens device for use the...
Publication number
20020034017
Publication date
Mar 21, 2002
Koji Hirata
G02 - OPTICS
Information
Patent Application
Optical apparatus
Publication number
20010043312
Publication date
Nov 22, 2001
Kenji Fuse
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Liquid crystal display apparatus and optical device for use therein
Publication number
20010033345
Publication date
Oct 25, 2001
Hitachi, Ltd.
Toru Numata
G02 - OPTICS
Information
Patent Application
Image display mechanism and image display device
Publication number
20010019397
Publication date
Sep 6, 2001
Hitachi, Ltd.
Mikio Shiraishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Array lens, lighting optical system, optical unit and imaging appar...
Publication number
20010010596
Publication date
Aug 2, 2001
Hitachi, Ltd.
Satoshi Ohuchi
G02 - OPTICS
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
Array lens, lighting optical system, optical unit and imaging appar...
Publication number
20010002154
Publication date
May 31, 2001
Hitachi, Ltd.
Satoshi Ohuchi
G02 - OPTICS