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Junkichi Sugita
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Ebina, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Frequency control device and information reproduction apparatus
Patent number
7,693,246
Issue date
Apr 6, 2010
Sony Corporation
Tomohiro Ohama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
PLL circuit and recording and playback apparatus using same
Patent number
6,804,074
Issue date
Oct 12, 2004
Sony Corporation
Norio Shoji
G11 - INFORMATION STORAGE
Information
Patent Grant
Nonlinearity compensation circuit and method, control circuit and m...
Patent number
6,597,650
Issue date
Jul 22, 2003
Sony Corporation
Masayuki Katakura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Track address pattern for a disk memory apparatus
Patent number
5,274,510
Issue date
Dec 28, 1993
Sony Corporation
Junkichi Sugita
G11 - INFORMATION STORAGE
Information
Patent Grant
Disc memory apparatus utilizing detection of high-accuracy address...
Patent number
5,268,803
Issue date
Dec 7, 1993
Sony Corporation
Junkichi Sugita
G11 - INFORMATION STORAGE
Information
Patent Grant
Disc drive apparatus with tracking control based on multiple refere...
Patent number
5,191,568
Issue date
Mar 2, 1993
Sony Corporation
Takayasu Muto
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk apparatus
Patent number
5,175,654
Issue date
Dec 29, 1992
Sony Corporation
Takehiko Saito
G11 - INFORMATION STORAGE
Information
Patent Grant
Digital data detecting apparatus
Patent number
4,543,531
Issue date
Sep 24, 1985
Sony Corporation
Junkichi Sugita
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic transducer head utilizing magneto resistance effect with a...
Patent number
4,524,401
Issue date
Jun 18, 1985
Sony Corporation
Hiroyuki Uchida
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic transducer head utilizing magnetoresistance effect
Patent number
4,516,179
Issue date
May 7, 1985
Sony Corporation
Shigeyoshi Imakoshi
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Information
Patent Grant
Public address system
Patent number
4,275,269
Issue date
Jun 23, 1981
Sony Corporation
Junkichi Sugita
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Frequency control device and information reproduction apparatus
Publication number
20060274864
Publication date
Dec 7, 2006
SONY CORPORATION
Tomohiro Ohama
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Nonlinearity compensation circuit and method, control circuit and m...
Publication number
20020053935
Publication date
May 9, 2002
Masayuki Katakura
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
PLL circuit and recording and playback apparatus using same
Publication number
20020017934
Publication date
Feb 14, 2002
Norio Shoji
G11 - INFORMATION STORAGE