Masafumi Iwashiro

Person

Ome-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing disk device and computer program product
- Patent number 11,996,127
- Issue date May 28, 2024
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk device
- Patent number 11,875,821
- Issue date Jan 16, 2024
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and head position control method
- Patent number 10,553,248
- Issue date Feb 4, 2020
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and command reordering method thereof
- Patent number 10,372,375
- Issue date Aug 6, 2019
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Magnetic disc device and position control method
- Patent number 10,217,485
- Issue date Feb 26, 2019
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and method of controlling magnetic heads
- Patent number 8,817,416
- Issue date Aug 26, 2014
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and head-position control method
- Patent number 8,773,808
- Issue date Jul 8, 2014
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and head position control method
- Patent number 8,315,008
- Issue date Nov 20, 2012
- Kabushiki Kaisha Toshiba
- Atsushi Suzuki
- 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
Method and apparatus for servo information writing in a disk drive
- Patent number 7,221,533
- Issue date May 22, 2007
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Head position calculation method in magnetic disc apparatus
- Patent number 7,173,789
- Issue date Feb 6, 2007
- Kabushiki Kaisha Toshiba
- Shinichirou Kouhara
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for head positioning control with disturbance...
- Patent number 7,158,334
- Issue date Jan 2, 2007
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for positioning a head in a disk drive with se...
- Patent number 7,061,710
- Issue date Jun 13, 2006
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for head positioning control in disk drive
- Patent number 6,940,680
- Issue date Sep 6, 2005
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for head positioning control in a disk drive
- Patent number 6,934,116
- Issue date Aug 23, 2005
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Head positioning control system using sampled data control system f...
- Patent number 6,680,812
- Issue date Jan 20, 2004
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for head-positioning control, for use in a dis...
- Patent number 6,429,996
- Issue date Aug 6, 2002
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and apparatus for digital position control
- Patent number 5,847,527
- Issue date Dec 8, 1998
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR MANUFACTURING DISK DEVICE AND COMPUTER PROGRAM PRODUCT
- Publication number 20240087602
- Publication date Mar 14, 2024
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DEVICE
- Publication number 20230307001
- Publication date Sep 28, 2023
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISC DEVICE AND POSITION CONTROL METHOD
- Publication number 20190066727
- Publication date Feb 28, 2019
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND COMMAND REORDERING METHOD THEREOF
- Publication number 20180046410
- Publication date Feb 15, 2018
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MAGNETIC DISK DEVICE AND POSITION CONTROL METHOD
- Publication number 20160343393
- Publication date Nov 24, 2016
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND CONTROL METHOD
- Publication number 20160125902
- Publication date May 5, 2016
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND METHOD OF CONTROLLING MAGNETIC HEADS
- Publication number 20140198407
- Publication date Jul 17, 2014
- Kabushiki Kaisha Toshiba
- Masafumi IWASHIRO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND HEAD-POSITION CONTROL METHOD
- Publication number 20130083424
- Publication date Apr 4, 2013
- Kabushiki Kaisha Toshiba
- Masafumi IWASHIRO
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND HEAD POSITION CONTROL METHOD
- Publication number 20110310506
- Publication date Dec 22, 2011
- Kabushiki Kaisha Toshiba
- Atsushi SUZUKI
- G11 - INFORMATION STORAGE
Information Patent Application
HEAD POSITIONING CONTROL METHOD, MAGNETIC DISK APPARATUS AND FEEDBA...
- Publication number 20090316294
- Publication date Dec 24, 2009
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- 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 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
Method and apparatus for servo control using spiral servo informati...
- Publication number 20070097539
- Publication date May 3, 2007
- Kabushiki Kaisha Toshiba
- Hideo Sado
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for writing servo information
- Publication number 20070047132
- Publication date Mar 1, 2007
- Kabushiki Kaisha Toshiba
- Hideo Sado
- G11 - INFORMATION STORAGE
Information Patent Application
Head position calculation method in magnetic disc apparatus
- Publication number 20060221491
- Publication date Oct 5, 2006
- Kabushiki Kaisha Toshiba
- Shinichirou Kouhara
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for servo information writing in a disk drive
- Publication number 20060114599
- Publication date Jun 1, 2006
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for servo writing with servo pattern examinati...
- Publication number 20060109583
- Publication date May 25, 2006
- Kabushiki Kaisha Toshiba
- Hideo Sado
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for head positioning control with disturbance...
- Publication number 20050243458
- Publication date Nov 3, 2005
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for positioning a head in a disk drive with se...
- Publication number 20050094307
- Publication date May 5, 2005
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for head positioning with disturbance compensa...
- Publication number 20040213100
- Publication date Oct 28, 2004
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for head positioning control in a disk drive
- Publication number 20030174432
- Publication date Sep 18, 2003
- Kabushiki Kaisha Toshiba
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE
Information Patent Application
Method and apparatus for head positioning control in disk drive
- Publication number 20020054448
- Publication date May 9, 2002
- Masafumi Iwashiro
- G11 - INFORMATION STORAGE

Masafumi Iwashiro

Person

Patents Grantslast 30 patents

Method for manufacturing disk device and computer program product

Disk device

Magnetic disk device and head position control method

Magnetic disk device and command reordering method thereof

Magnetic disc device and position control method

Magnetic disk device and method of controlling magnetic heads

Magnetic disk device and head-position control method

Magnetic disk device and head position control method

Method and apparatus for servo control using spiral servo informati...

Method and apparatus for servo information writing in a disk drive

Head position calculation method in magnetic disc apparatus

Method and apparatus for head positioning control with disturbance...

Method and apparatus for positioning a head in a disk drive with se...

Method and apparatus for head positioning control in disk drive

Method and apparatus for head positioning control in a disk drive

Head positioning control system using sampled data control system f...

Method and apparatus for head-positioning control, for use in a dis...

Method and apparatus for digital position control

Patents Applicationslast 30 patents

METHOD FOR MANUFACTURING DISK DEVICE AND COMPUTER PROGRAM PRODUCT

DISK DEVICE

MAGNETIC DISC DEVICE AND POSITION CONTROL METHOD

MAGNETIC DISK DEVICE AND COMMAND REORDERING METHOD THEREOF

MAGNETIC DISK DEVICE AND POSITION CONTROL METHOD

MAGNETIC DISK DEVICE AND CONTROL METHOD

MAGNETIC DISK DEVICE AND METHOD OF CONTROLLING MAGNETIC HEADS

MAGNETIC DISK DEVICE AND HEAD-POSITION CONTROL METHOD

MAGNETIC DISK DEVICE AND HEAD POSITION CONTROL METHOD

HEAD POSITIONING CONTROL METHOD, MAGNETIC DISK APPARATUS AND FEEDBA...

Method and apparatus for writing servo data and positioning head in...

Method and apparatus for writing a spiral servo pattern on a disk i...

Method and apparatus for servo control using spiral servo informati...

Method and apparatus for writing servo information

Head position calculation method in magnetic disc apparatus

Method and apparatus for servo information writing in a disk drive

Method and apparatus for servo writing with servo pattern examinati...

Method and apparatus for head positioning control with disturbance...

Method and apparatus for positioning a head in a disk drive with se...

Method and apparatus for head positioning with disturbance compensa...

Method and apparatus for head positioning control in a disk drive

Method and apparatus for head positioning control in disk drive