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Hideo Sado
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Magnetic disk device and head positioning method
Patent number
10,636,446
Issue date
Apr 28, 2020
Kabushiki Kaisha Toshiba
Hiroyuki Suzuki
G11 - INFORMATION STORAGE
Information
Patent Grant
Hard disk drive, manufacturing method of the same, and servo data w...
Patent number
10,115,422
Issue date
Oct 30, 2018
Kabushiki Kaisha Toshiba
Shinsuke Akiya
G11 - INFORMATION STORAGE
Information
Patent Grant
Hard disk drive, manufacturing method of the same, and servo data w...
Patent number
9,905,257
Issue date
Feb 27, 2018
Kabushiki Kaisha Toshiba
Shinsuke Akiya
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic disk drive and method for controlling microactuator in mag...
Patent number
8,542,458
Issue date
Sep 24, 2013
Kabushiki Kaisha Toshiba
Toshitaka Matsunaga
G11 - INFORMATION STORAGE
Information
Patent Grant
Recording device and method for positioning electromagnetic transducer
Patent number
8,400,727
Issue date
Mar 19, 2013
Kabushiki Kaisha Toshiba
Yutaka Yoshida
G11 - INFORMATION STORAGE
Information
Patent Grant
Storage device and information correction method
Patent number
8,363,347
Issue date
Jan 29, 2013
Kabushiki Kaisha Toshiba
Yoshinari Higashino
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for generating synchronous clock for write ope...
Patent number
7,961,578
Issue date
Jun 14, 2011
Kabushiki Kaisha Toshiba
Hideo Sado
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive having a disk of discrete-track media type
Patent number
7,933,088
Issue date
Apr 26, 2011
Kabushiki Kaisha Toshiba
Hideo Sado
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive configured to calculate head rebound distance
Patent number
7,920,353
Issue date
Apr 5, 2011
Kabushiki Kaisha Toshiba
Katsuki Ueda
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for head positioning using spiral servo patter...
Patent number
7,855,850
Issue date
Dec 21, 2010
Kabushiki Kaisha Toshiba
Toshitaka Matsunaga
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for writing servo data, using spiral servo pat...
Patent number
7,852,593
Issue date
Dec 14, 2010
Kabushiki Kaisha Toshiba
Seiji Mizukoshi
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for positioning head using spiral servo patter...
Patent number
7,804,659
Issue date
Sep 28, 2010
Kabushiki Kaisha Toshiba
Toshitaka Matsunaga
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for writing spiral servo pattern in a disk drive
Patent number
7,710,682
Issue date
May 4, 2010
Kabushiki Kaisha Toshiba
Seiji Mizukoshi
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for writing servo pattern using spiral pattern...
Patent number
7,675,705
Issue date
Mar 9, 2010
Kabushiki Kaisha Toshiba
Seiji Mizukoshi
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive device and head positioning control method
Patent number
7,639,445
Issue date
Dec 29, 2009
Kabushiki Kaisha Toshiba
Toshitaka Matsunaga
G11 - INFORMATION STORAGE
Information
Patent Grant
Disk drive device and servo write method
Patent number
7,639,446
Issue date
Dec 29, 2009
Kabushiki Kaisha Toshiba
Seiji Mizukoshi
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for writing spiral servo pattern in a disk drive
Patent number
7,630,161
Issue date
Dec 8, 2009
Kabushiki Kaisha Toshiba
Shouji Nakajima
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,548,394
Issue date
Jun 16, 2009
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for writing servo management information in a...
Patent number
7,538,965
Issue date
May 26, 2009
Kabushiki Kaisha Toshiba
Katsuki Ueda
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,538,968
Issue date
May 26, 2009
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,532,430
Issue date
May 12, 2009
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,525,755
Issue date
Apr 28, 2009
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for writing servo data in a disk drive using s...
Patent number
7,477,472
Issue date
Jan 13, 2009
Kabushiki Kaisha Toshiba
Hideo Sado
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for correcting errors while writing spiral ser...
Patent number
7,457,074
Issue date
Nov 25, 2008
Kabushiki Kaisha Toshiba
Hideo Sado
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for servo control using spiral servo informati...
Patent number
7,423,835
Issue date
Sep 9, 2008
Kabushiki Kaisha Toshiba
Hideo Sado
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,298,582
Issue date
Nov 20, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,298,576
Issue date
Nov 20, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,298,578
Issue date
Nov 20, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,298,577
Issue date
Nov 20, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic recording medium and magnetic recording/reproducing apparatus
Patent number
7,298,579
Issue date
Nov 20, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
MAGNETIC DISK DEVICE AND HEAD POSITIONING METHOD
Publication number
20200082848
Publication date
Mar 12, 2020
Kabushiki Kaisha Toshiba
Hiroyuki Suzuki
G11 - INFORMATION STORAGE
Information
Patent Application
HARD DISK DRIVE, MANUFACTURING METHOD OF THE SAME, AND SERVO DATA W...
Publication number
20180166099
Publication date
Jun 14, 2018
Kabushiki Kaisha Toshiba
Shinsuke AKIYA
G11 - INFORMATION STORAGE
Information
Patent Application
HARD DISK DRIVE, MANUFACTURING METHOD OF THE SAME, AND SERVO DATA W...
Publication number
20170221512
Publication date
Aug 3, 2017
Kabushiki Kaisha Toshiba
Shinsuke AKIYA
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC DISK DRIVE AND METHOD FOR CONTROLLING MICROACTUATOR IN MAG...
Publication number
20120162813
Publication date
Jun 28, 2012
Kabushiki Kaisha Toshiba
Toshitaka MATSUNAGA
G11 - INFORMATION STORAGE
Information
Patent Application
STORAGE DEVICE AND INFORMATION CORRECTION METHOD
Publication number
20120155238
Publication date
Jun 21, 2012
Kabushiki Kaisha Toshiba
Yoshinari Higashino
G11 - INFORMATION STORAGE
Information
Patent Application
RECORDING DEVICE AND METHOD FOR POSITIONING ELECTROMAGNETIC TRANSDUCER
Publication number
20110310507
Publication date
Dec 22, 2011
Kabushiki Kaisha Toshiba
Yutaka Yoshida
G11 - INFORMATION STORAGE
Information
Patent Application
DISK DRIVE CONFIGURED TO CALCULATE HEAD REBOUND DISTANCE
Publication number
20100321810
Publication date
Dec 23, 2010
Kabushiki Kaisha Toshiba
Katsuki UEDA
G11 - INFORMATION STORAGE
Information
Patent Application
DISK DRIVE HAVING A DISK OF DISCRETE-TRACK MEDIA TYPE
Publication number
20090168228
Publication date
Jul 2, 2009
Kabushiki Kaisha Toshiba
Hideo Sado
G11 - INFORMATION STORAGE
Information
Patent Application
DISK DRIVE DEVICE AND SERVO WRITE METHOD
Publication number
20090168218
Publication date
Jul 2, 2009
Kabushiki Kaisha Toshiba
Seiji MIZUKOSHI
G11 - INFORMATION STORAGE
Information
Patent Application
DISK DRIVE DEVICE AND HEAD POSITIONING CONTROL METHOD
Publication number
20090168225
Publication date
Jul 2, 2009
Kabushiki Kaisha Toshiba
Toshitaka Matsunaga
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR GENERATING SYNCHRONOUS CLOCK FOR WRITE OPE...
Publication number
20090003165
Publication date
Jan 1, 2009
Kabushiki Kaisha Toshiba
Hideo Sado
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR HEAD POSITIONING USING SPIRAL SERVO PATTER...
Publication number
20090002871
Publication date
Jan 1, 2009
Kabushiki Kaisha Toshiba
Toshitaka Matsunaga
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR POSITIONING HEAD ON DATA TRACK WITH A VARI...
Publication number
20090002872
Publication date
Jan 1, 2009
Kabushiki Kaisha Toshiba
Katsuki Ueda
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR WRITING SERVO DATA, USING SPIRAL SERVO PAT...
Publication number
20090002876
Publication date
Jan 1, 2009
Kabushiki Kaisha Toshiba
Seiji Mizukoshi
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR POSITIONING HEAD USING SPIRAL SERVO PATTER...
Publication number
20080151414
Publication date
Jun 26, 2008
Kabushiki Kaisha Toshiba
Toshitaka Matsunaga
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR WRITING SPIRAL SERVO PATTERN IN A DISK DRIVE
Publication number
20080151409
Publication date
Jun 26, 2008
Kabushiki Kaisha Toshiba
Seiji Mizukoshi
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR WRITING SPIRAL SERVO PATTERN IN A DISK DRIVE
Publication number
20080151412
Publication date
Jun 26, 2008
Kabushiki Kaisha Toshiba
Shouji Nakajima
G11 - INFORMATION STORAGE
Information
Patent Application
METHOD AND APPARATUS FOR WRITING SERVO PATTERN USING SPIRAL PATTERN...
Publication number
20080151413
Publication date
Jun 26, 2008
Kabushiki Kaisha Toshiba
Seiji Mizukoshi
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for testing servo data on a disk medium in a d...
Publication number
20080137226
Publication date
Jun 12, 2008
Kabushiki Kaisha Toshiba
Katsuki Ueda
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for writing servo data in a disk drive using s...
Publication number
20080130160
Publication date
Jun 5, 2008
Kabushiki Kaisha Toshiba
Hideo Sado
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for writing servo data and positioning head in...
Publication number
20080068740
Publication date
Mar 20, 2008
Kabushiki Kaisha Toshiba
Shinichirou Kouhara
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for writing servo management information in a...
Publication number
20080002278
Publication date
Jan 3, 2008
Kabushiki Kaisha Toshiba
Katsuki Ueda
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for writing a spiral servo pattern on a disk i...
Publication number
20080002279
Publication date
Jan 3, 2008
Kabushiki Kaisha Toshiba
Shinichirou Kouhara
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
Publication number
20070236823
Publication date
Oct 11, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
Publication number
20070236824
Publication date
Oct 11, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
Publication number
20070236822
Publication date
Oct 11, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
Publication number
20070230023
Publication date
Oct 4, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
Publication number
20070230029
Publication date
Oct 4, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
Publication number
20070230030
Publication date
Oct 4, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE
Information
Patent Application
MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING/REPRODUCING APPARATUS
Publication number
20070230031
Publication date
Oct 4, 2007
Kabushiki Kaisha Toshiba
Makoto Asakura
G11 - INFORMATION STORAGE