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Isao Ikuta
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Iwaki-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Liquid crystal display device and wiring structure therefor
Patent number
6,628,361
Issue date
Sep 30, 2003
Hitachi, Ltd.
Takuya Takahashi
G02 - OPTICS
Information
Patent Grant
Manufacturing method of CMOS thin film semiconductor device and CMO...
Patent number
6,127,210
Issue date
Oct 3, 2000
Hitachi, Ltd.
Akio Mimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical recording media and information recording and reproducing u...
Patent number
RE36624
Issue date
Mar 21, 2000
Hitachi, Ltd.
Yoshihito Maeda
430 - Radiation imagery chemistry: process, composition, or product thereof
Information
Patent Grant
ROM type optical recording medium with a high reflectivity and an o...
Patent number
5,583,840
Issue date
Dec 10, 1996
Hitachi, Ltd.
Hiroyuki Minemura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Optical disk apparatus
Patent number
5,572,502
Issue date
Nov 5, 1996
Hitachi, Ltd.
Atsuko Naruse
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording media and information recording and reproducing u...
Patent number
5,484,686
Issue date
Jan 16, 1996
Hitachi, Ltd.
Yoshihito Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical disk memory and information processing apparatus
Patent number
5,475,656
Issue date
Dec 12, 1995
Hitachi, Ltd.
Yoshio Sato
G11 - INFORMATION STORAGE
Information
Patent Grant
Methods of varying optical properties, optical devices, information...
Patent number
5,420,845
Issue date
May 30, 1995
Hitachi, Ltd.
Yoshihito Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical memory and information processing apparatus
Patent number
5,371,730
Issue date
Dec 6, 1994
Hitachi, Ltd.
Yoshihito Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Information processing apparatus and optical head incorporated therein
Patent number
5,317,556
Issue date
May 31, 1994
Hitachi, Ltd.
Nobuyoshi Tsuboi
G11 - INFORMATION STORAGE
Information
Patent Grant
Information processor and disk memory used in the same
Patent number
5,274,612
Issue date
Dec 28, 1993
Hitachi, Ltd.
Yoshio Sato
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium
Patent number
5,187,052
Issue date
Feb 16, 1993
Hitachi, Ltd.
Yoshihito Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Service temperature connector and packaging structure of semiconduc...
Patent number
4,950,173
Issue date
Aug 21, 1990
Hitachi, Ltd.
Tetsuro Minemura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Information recording and reproducing apparatus having recording me...
Patent number
4,773,059
Issue date
Sep 20, 1988
Hitachi, Ltd.
Tetsuro Minemura
G11 - INFORMATION STORAGE
Information
Patent Grant
Alloy having variable spectral reflectance and information recordin...
Patent number
4,743,526
Issue date
May 10, 1988
Hitachi, Ltd.
Hisashi Ando
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Recording material
Patent number
4,726,858
Issue date
Feb 23, 1988
Hitachi, Ltd.
Tetsuro Minemura
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Liquid crystal display device
Publication number
20030112382
Publication date
Jun 19, 2003
Takuya Takahashi
G02 - OPTICS
Information
Patent Application
Liquid crystal display device and wiring structure therefor
Publication number
20010022635
Publication date
Sep 20, 2001
Takuya Takahashi
G02 - OPTICS