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Tetsuji Sakurai
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Tokyo, JP
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last 30 patents
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Patent Grant
Apparatus for controlling motor drive and method for controlling th...
Patent number
5,627,441
Issue date
May 6, 1997
Kabushiki Kaisha Toshiba
Tetsuji Sakurai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Current mirror circuit constituted by FET (field effect transistor)...
Patent number
5,585,701
Issue date
Dec 17, 1996
Kabushiki Kaisha Toshiba
Katsuhiko Kaida
G01 - MEASURING TESTING
Information
Patent Grant
Sensorless spindle motor control apparatus
Patent number
5,432,414
Issue date
Jul 11, 1995
Kabushiki Kaisha Toshiba
Tetsuji Sakurai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method and apparatus for automatic gain control amplifier adjustmen...
Patent number
5,373,403
Issue date
Dec 13, 1994
Kabushiki Kaisha Toshiba
Hiroshi Okamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for controlling brushless DC motor
Patent number
5,327,052
Issue date
Jul 5, 1994
Kabushiki Kaisha Toshiba
Tetsuji Sakurai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus for reliably activating sensorless and brushless DC motor
Patent number
5,206,567
Issue date
Apr 27, 1993
Kabushiki Kaisha Toshiba
Tetsuji Sakurai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method and apparatus for determining track position of a head on a...
Patent number
5,146,374
Issue date
Sep 8, 1992
Kabushiki Kaisha Toshiba
Tetsuji Sakurai
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for positioning head on the basis of premeasur...
Patent number
5,051,851
Issue date
Sep 24, 1991
Kabushiki Kaisha Toshiba
Tetsuji Sakurai
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for positioning a magnetic head in accordance with digital p...
Patent number
4,907,107
Issue date
Mar 6, 1990
Kabushiki Kaisha Toshiba
Tetsuji Sakurai
G11 - INFORMATION STORAGE