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Masaaki Kitajima
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Hitachi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Matrix panel display apparatus and driving method therefor wherein...
Patent number
7,355,575
Issue date
Apr 8, 2008
Hitachi, Ltd.
Masayuki Ota
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Liquid crystal display device
Patent number
7,292,212
Issue date
Nov 6, 2007
Hitachi, Ltd.
Tatsuo Makishima
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Active matrix LCD device with image signal lines having a multilaye...
Patent number
RE39798
Issue date
Aug 28, 2007
Hitachi, Ltd.
Kikuo Ono
349 - Liquid crystal cells, elements and systems
Information
Patent Grant
Active matrix type liquid crystal system
Patent number
6,980,273
Issue date
Dec 27, 2005
Hitachi, Ltd.
Masuyuki Ota
G02 - OPTICS
Information
Patent Grant
Display device with capacitor formed in a region of the substrate w...
Patent number
6,862,066
Issue date
Mar 1, 2005
Hitachi, Ltd.
Yoshio Oowaki
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device
Patent number
6,812,911
Issue date
Nov 2, 2004
Hitachi, Ltd.
Tatsuo Makishima
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Liquid crystal display device
Patent number
6,756,958
Issue date
Jun 29, 2004
Hitachi, Ltd.
Tsutomu Furuhashi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Active matrix type liquid crystal system
Patent number
6,563,561
Issue date
May 13, 2003
Hitachi, Ltd.
Masuyuki Ota
G02 - OPTICS
Information
Patent Grant
Method of driving STN liquid crystal panel and apparatus therefor
Patent number
6,559,823
Issue date
May 6, 2003
Hitachi, Ltd.
Hiroyuki Mano
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Liquid-crystal halftone display system
Patent number
6,542,141
Issue date
Apr 1, 2003
Hitachi, Ltd.
Hiroyuki Mano
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Information processing system
Patent number
6,369,805
Issue date
Apr 9, 2002
Hitachi, Ltd.
Soushiro Kuzunuki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Liquid crystal display device and driving method therefor
Patent number
6,331,845
Issue date
Dec 18, 2001
Hitachi, Ltd.
Masaaki Kitajima
G02 - OPTICS
Information
Patent Grant
Information processing system
Patent number
6,081,260
Issue date
Jun 27, 2000
Hitachi Ltd.
Soushiro Kuzunuki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Liquid-crystal halftone display system
Patent number
6,072,451
Issue date
Jun 6, 2000
Hitachi, Ltd.
Hiroyuki Mano
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Liquid crystal display device and driving method therefor
Patent number
6,064,358
Issue date
May 16, 2000
Hitachi, Ltd.
Masaaki Kitajima
G02 - OPTICS
Information
Patent Grant
Active matrix type LCD with two shield electrodes
Patent number
6,040,886
Issue date
Mar 21, 2000
Hitachi, Ltd.
Masuyuki Ota
G02 - OPTICS
Information
Patent Grant
Method of driving STN liquid crystal panel and apparatus therefor
Patent number
5,977,943
Issue date
Nov 2, 1999
Hitachi, Ltd.
Hiroyuki Mano
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Process for producing actively addressing substrate, and liquid cry...
Patent number
5,886,761
Issue date
Mar 23, 1999
Hitachi, Ltd.
Tohru Sasaki
G02 - OPTICS
Information
Patent Grant
Information processing system
Patent number
5,864,335
Issue date
Jan 26, 1999
Hitachi, Ltd.
Soshiro Kuzunuki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Reflective-type display device having a refractive index ratio betw...
Patent number
5,828,431
Issue date
Oct 27, 1998
Hitachi, Ltd.
Masahiko Ando
G02 - OPTICS
Information
Patent Grant
Active matrix type liquid crystal display system
Patent number
5,786,876
Issue date
Jul 28, 1998
Hitachi, Ltd.
Masuyuki Ota
G02 - OPTICS
Information
Patent Grant
Active matrix LCD device with image signal lines having a multilaye...
Patent number
5,751,381
Issue date
May 12, 1998
Hitachi, Ltd.
Kikuo Ono
G02 - OPTICS
Information
Patent Grant
Display device integrated with an input device
Patent number
5,684,505
Issue date
Nov 4, 1997
Hitachi, Ltd.
Isao Takita
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Drive method for driving a matrix-addressing display, a drive circu...
Patent number
5,677,705
Issue date
Oct 14, 1997
Hitachi, Ltd.
Masato Shimura
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Method of driving STN liquid crystal panel and apparatus therefor
Patent number
5,638,088
Issue date
Jun 10, 1997
Hitachi, Ltd.
Hiroyuki Mano
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Display unit having a coordinate input mechanism
Patent number
5,633,659
Issue date
May 27, 1997
Hitachi, Ltd.
Tsutomu Furuhashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Liquid crystal display device and driving method therefor
Patent number
5,561,440
Issue date
Oct 1, 1996
Hitachi, Ltd.
Masaaki Kitajima
G02 - OPTICS
Information
Patent Grant
Liquid crystal display device with residual retardation compensated...
Patent number
5,519,523
Issue date
May 21, 1996
Hitachi, Ltd.
Hitomi Madokoro
G02 - OPTICS
Information
Patent Grant
Process for producing the passivation layer of an active matrix sub...
Patent number
5,477,355
Issue date
Dec 19, 1995
Hitachi, Ltd.
Tohru Sasaki
G02 - OPTICS
Information
Patent Grant
Display system
Patent number
5,475,396
Issue date
Dec 12, 1995
Hitachi, Ltd.
Masaaki Kitajima
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Patents Applications
last 30 patents
Information
Patent Application
Liquid crystal display device
Publication number
20050083446
Publication date
Apr 21, 2005
Tatsuo Makishima
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Image display device
Publication number
20030043331
Publication date
Mar 6, 2003
Yoshio Oowaki
G02 - OPTICS
Information
Patent Application
Active matrix type liquid crystal system
Publication number
20030002001
Publication date
Jan 2, 2003
Masuyuki Ota
G02 - OPTICS
Information
Patent Application
Liquid crystal display device
Publication number
20020075218
Publication date
Jun 20, 2002
Tatsuo Makishima
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Application
Liquid crystal display device
Publication number
20020063703
Publication date
May 30, 2002
Tsutomu Furuhashi
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS