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Kunihiro Kawauchi
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Fujioka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Drive control device for direct current motor, rotation drive syste...
Patent number
7,119,508
Issue date
Oct 10, 2006
Renesas Technology Corp.
Minoru Kurosawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Rotation drive control circuit of multiphases direct current motor...
Patent number
7,071,640
Issue date
Jul 4, 2006
Renesas Technology Corporation
Minoru Kurosawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Drive control system for sensor-less motor
Patent number
6,900,604
Issue date
May 31, 2005
Renesas Technology Corp.
Yasuhiko Kokami
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Magnetic disk storage apparatus
Patent number
6,801,382
Issue date
Oct 5, 2004
Renesas Technology Corp.
Reiichi Kimura
G11 - INFORMATION STORAGE
Information
Patent Grant
Drive control system for sensor-less motor
Patent number
6,771,033
Issue date
Aug 3, 2004
Renesas Technology Corp.
Yasuhiko Kokami
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor integrated circuit for brushless motor drive control...
Patent number
6,563,286
Issue date
May 13, 2003
Hitachi, Ltd.
Kunio Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor integrated circuit for brushless motor drive control...
Patent number
6,344,721
Issue date
Feb 5, 2002
Hitachi, Ltd.
Kunio Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Semiconductor integrated circuit for brushless motor drive control...
Patent number
6,340,873
Issue date
Jan 22, 2002
Hitachi, Ltd.
Kunio Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
Magnetic disk storage apparatus
Publication number
20060227448
Publication date
Oct 12, 2006
RENESAS TECHNOLOGY CORP.
Reiichi Kimura
G11 - INFORMATION STORAGE
Information
Patent Application
Drive control system for sensor-less motor
Publication number
20050189892
Publication date
Sep 1, 2005
RENESAS TECHNOLOGY CORP.
Yasuhiko Kokami
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Magnetic disk storage apparatus
Publication number
20050036228
Publication date
Feb 17, 2005
RENESAS TECHNOLOGY CORP.
Reiichi Kimura
G11 - INFORMATION STORAGE
Information
Patent Application
Drive control device for direct current motor, rotation drive syste...
Publication number
20040189221
Publication date
Sep 30, 2004
Minoru Kurosawa
G11 - INFORMATION STORAGE
Information
Patent Application
Rotation drive control circuit of multiphases direct current motor...
Publication number
20040080293
Publication date
Apr 29, 2004
RENESAS TECHNOLOGY CORP.
Minoru Kurosawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Drive control system for sensor-less motor
Publication number
20030107337
Publication date
Jun 12, 2003
Hitachi, Ltd.
Yasuhiko Kokami
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Drive control system for sensor-less motor
Publication number
20030107338
Publication date
Jun 12, 2003
Hitachi, Ltd.
Yasuhiko Kokami
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Application
Magnetic disk storage apparatus
Publication number
20020181137
Publication date
Dec 5, 2002
Hitachi, Ltd.
Reiichi Kimura
G11 - INFORMATION STORAGE
Information
Patent Application
Semiconductor integrated circuit for brushless motor drive control...
Publication number
20020079860
Publication date
Jun 27, 2002
Hitachi, Ltd.
Kunio Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Semiconductor integrated circuit for brushless motor drive control...
Publication number
20010050542
Publication date
Dec 13, 2001
Kunio Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Semiconductor integrated circuit for brushless motor drive control...
Publication number
20010045812
Publication date
Nov 29, 2001
Hitachi, Ltd.
Kunio Seki
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER