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Takashi Ohmori
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic head including stepped core and magneto-optical recording...
Patent number
6,510,109
Issue date
Jan 21, 2003
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording/reproducing apparatus and recording medium rotation contr...
Patent number
5,974,012
Issue date
Oct 26, 1999
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording medium capable of recording a first data-type and a secon...
Patent number
5,805,550
Issue date
Sep 8, 1998
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Efficient recording medium
Patent number
5,799,212
Issue date
Aug 25, 1998
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head driving circuit, including magnetic head coil switchi...
Patent number
5,748,573
Issue date
May 5, 1998
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for the recording and reproducing of data on a...
Patent number
5,737,639
Issue date
Apr 7, 1998
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording medium capable of recording a first data-type and a secon...
Patent number
5,737,290
Issue date
Apr 7, 1998
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
System for expansion of data storage medium to store user data
Patent number
5,687,397
Issue date
Nov 11, 1997
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head driving circuit operable with recording data transfer...
Patent number
5,654,943
Issue date
Aug 5, 1997
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical disc
Patent number
5,506,023
Issue date
Apr 9, 1996
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Apparatus for reproducing a recording with reduced error correction...
Patent number
5,408,478
Issue date
Apr 18, 1995
Sony Corporation
Takashi Ohmori
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Magnetic head device for magneto-optical disc system and magnetic h...
Patent number
5,404,342
Issue date
Apr 4, 1995
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Electromagnetic shield device for magneto-optical recording apparatus
Patent number
5,402,397
Issue date
Mar 28, 1995
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Disc recording and/or reproducing apparatus for recording continuou...
Patent number
5,388,093
Issue date
Feb 7, 1995
Sony Corporation
Tadao Yoshida
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording apparatus
Patent number
RE34710
Issue date
Aug 30, 1994
Sony Corporation
Hirotoshi Fujisawa
369 - Dynamic information storage or retrieval
Information
Patent Grant
Magneto-optical disk recording apparatus
Patent number
5,072,431
Issue date
Dec 10, 1991
Sony Corporation
Takashi Ohmori
G11 - INFORMATION STORAGE
Information
Patent Grant
Magneto-optical recording apparatus
Patent number
5,034,933
Issue date
Jul 23, 1991
Sony Corporation
Hirotoshi Fujisawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for recording and reproducing a digital signal...
Patent number
4,739,420
Issue date
Apr 19, 1988
Sony Corporation
Kentaro Odaka
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus with improved tracking control for recording a...
Patent number
4,656,539
Issue date
Apr 7, 1987
Sony Corporation
Hiraku Sugiki
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
MAGNETIC HEAD INCLUDING STEPPED CORE AND MAGNETO-OPTICAL RECORDING...
Publication number
20020163862
Publication date
Nov 7, 2002
Takashi Ohmori
G11 - INFORMATION STORAGE