Hiroshi Isokawa

Person

Yokohama-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk device and method of adjusting preheat time
- Patent number 12,002,495
- Issue date Jun 4, 2024
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device with magnetic disk overwrite characteristics a...
- Patent number 11,984,143
- Issue date May 14, 2024
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device with magnetic head size arrangement
- Patent number 11,651,782
- Issue date May 16, 2023
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and refresh threshold setting method
- Patent number 11,646,051
- Issue date May 9, 2023
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording and reproducing device
- Patent number 11,437,069
- Issue date Sep 6, 2022
- Kabushiki Kaisha Toshiba
- Takuya Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and method of setting data format
- Patent number 11,354,042
- Issue date Jun 7, 2022
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Energy-assisted magnetic recording device
- Patent number 11,276,421
- Issue date Mar 15, 2022
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Information processing apparatus with switching circuit on power su...
- Patent number 10,997,999
- Issue date May 4, 2021
- Kabushiki Kaisha Toshiba
- Daisuke Sudo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device having multiple writers with writing current o...
- Patent number 10,984,820
- Issue date Apr 20, 2021
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive and recording method for magnetic disk drive
- Patent number 10,803,887
- Issue date Oct 13, 2020
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Switching circuit on power supply for magnetic disk recording device
- Patent number 10,650,858
- Issue date May 12, 2020
- Kabushiki Kaisha Toshiba
- Daisuke Sudo
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and refresh processing method
- Patent number 10,490,223
- Issue date Nov 26, 2019
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Storage apparatus, controller and control method
- Patent number 9,548,071
- Issue date Jan 17, 2017
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Laser controller for heat-assisted magnetic recording device
- Patent number 9,093,085
- Issue date Jul 28, 2015
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head, magnetic disk drive, and method of controlling magne...
- Patent number 8,995,079
- Issue date Mar 31, 2015
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk having reflecting layer in recording layer, magnetic...
- Patent number 8,724,435
- Issue date May 13, 2014
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and disk drive with the same
- Patent number 8,670,202
- Issue date Mar 11, 2014
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording device, controller thereof, and magnetic recordi...
- Patent number 8,593,913
- Issue date Nov 26, 2013
- Kabushiki Kaisha Toshiba
- Yuichi Yamada
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head having heat conducting u...
- Patent number 8,593,916
- Issue date Nov 26, 2013
- Kabushiki Kaisha Toshiba
- Toshiyuki Ikai
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC DISK DEVICE WITH RECORDING CURRENT ARRANGEMENT
- Publication number 20240304211
- Publication date Sep 12, 2024
- Kabushiki Kaisha Toshiba
- Hiroshi ISOKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND METHOD OF ADJUSTING PREHEAT TIME
- Publication number 20240096349
- Publication date Mar 21, 2024
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20230245679
- Publication date Aug 3, 2023
- Kabushiki Kaisha Toshiba
- Hiroshi ISOKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND REFRESH THRESHOLD SETTING METHOD
- Publication number 20230061895
- Publication date Mar 2, 2023
- Kabushiki Kaisha Toshiba
- Hiroshi ISOKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING AND REPRODUCING DEVICE
- Publication number 20220115039
- Publication date Apr 14, 2022
- Kabushiki Kaisha Toshiba
- Takuya Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND METHOD OF SETTING DATA FORMAT
- Publication number 20220066649
- Publication date Mar 3, 2022
- Kabushiki Kaisha Toshiba
- Hiroshi ISOKAWA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20210358517
- Publication date Nov 18, 2021
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND WRITE PROCESSING METHOD
- Publication number 20210201940
- Publication date Jul 1, 2021
- Kabushiki Kaisha Toshiba
- Hiroshi ISOKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND WRITE PROCESSING METHOD
- Publication number 20210035602
- Publication date Feb 4, 2021
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DEVICE AND INFORMATION PROCESSING APPARATUS
- Publication number 20200234732
- Publication date Jul 23, 2020
- Kabushiki Kaisha Toshiba
- Daisuke Sudo
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DRIVE AND RECORDING METHOD FOR MAGNETIC DISK DRIVE
- Publication number 20200227074
- Publication date Jul 16, 2020
- Kabushiki Kaisha Toshiba
- Hiroshi ISOKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
DISK DEVICE AND INFORMATION PROCESSING APPARATUS
- Publication number 20190206437
- Publication date Jul 4, 2019
- Kabushiki Kaisha Toshiba
- Daisuke Sudo
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND REFRESH PROCESSING METHOD
- Publication number 20190198054
- Publication date Jun 27, 2019
- Kabushiki Kaisha Toshiba
- Hiroshi ISOKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
STORAGE APPARATUS, CONTROLLER AND CONTROL METHOD
- Publication number 20160322075
- Publication date Nov 3, 2016
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Application
LASER CONTROLLER FOR HEAT-ASSISTED MAGNETIC RECORDING DEVICE
- Publication number 20150221332
- Publication date Aug 6, 2015
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD, MAGNETIC DISK DRIVE, AND METHOD OF CONTROLLING MAGNE...
- Publication number 20150003219
- Publication date Jan 1, 2015
- Kabushiki Kaisha Toshiba
- Hiroshi Isokawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND DISK DRIVE WITH THE SAME
- Publication number 20130188275
- Publication date Jul 25, 2013
- Kabushiki Kaisha Toshiba
- Hiroshi ISOKAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING AND REPRODUCING SAME
- Publication number 20130176837
- Publication date Jul 11, 2013
- Kabushiki Kaisha Toshiba
- Toshiyuki Ikai
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING DEVICE, CONTROLLER THEREOF, AND MAGNETIC RECORDI...
- Publication number 20120134245
- Publication date May 31, 2012
- Kabushiki Kaisha Toshiba
- Yuichi Yamada
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING DEVICE, HEAD EVALUATION DEVICE, AND WRITE-POLE-E...
- Publication number 20100302671
- Publication date Dec 2, 2010
- TOSHIBA STORAGE DEVICE CORPORATION
- Hiroaki Ueno
- G11 - INFORMATION STORAGE
Information Patent Application
SIGNAL REPRODUCING CIRCUIT, MAGNETIC STORAGE DEVICE, AND SIGNAL REP...
- Publication number 20100157461
- Publication date Jun 24, 2010
- TOSHIBA STORAGE DEVICE CORPORATION
- Hiroaki UENO
- G11 - INFORMATION STORAGE

Hiroshi Isokawa

Person

Patents Grantslast 30 patents

Magnetic disk device and method of adjusting preheat time

Magnetic disk device with magnetic disk overwrite characteristics a...

Magnetic disk device with magnetic head size arrangement

Magnetic disk device and refresh threshold setting method

Magnetic recording and reproducing device

Magnetic disk device and method of setting data format

Energy-assisted magnetic recording device

Information processing apparatus with switching circuit on power su...

Magnetic disk device having multiple writers with writing current o...

Magnetic disk drive and recording method for magnetic disk drive

Switching circuit on power supply for magnetic disk recording device

Magnetic disk device and refresh processing method

Storage apparatus, controller and control method

Laser controller for heat-assisted magnetic recording device

Magnetic head, magnetic disk drive, and method of controlling magne...

Magnetic disk having reflecting layer in recording layer, magnetic...

Magnetic head and disk drive with the same

Magnetic recording device, controller thereof, and magnetic recordi...

Thermally-assisted magnetic recording head having heat conducting u...

Patents Applicationslast 30 patents

MAGNETIC DISK DEVICE WITH RECORDING CURRENT ARRANGEMENT

MAGNETIC DISK DEVICE AND METHOD OF ADJUSTING PREHEAT TIME

MAGNETIC DISK DEVICE

MAGNETIC DISK DEVICE AND REFRESH THRESHOLD SETTING METHOD

MAGNETIC RECORDING AND REPRODUCING DEVICE

MAGNETIC DISK DEVICE AND METHOD OF SETTING DATA FORMAT

MAGNETIC DISK DEVICE

MAGNETIC DISK DEVICE AND WRITE PROCESSING METHOD

MAGNETIC DISK DEVICE AND WRITE PROCESSING METHOD

DISK DEVICE AND INFORMATION PROCESSING APPARATUS

MAGNETIC DISK DRIVE AND RECORDING METHOD FOR MAGNETIC DISK DRIVE

DISK DEVICE AND INFORMATION PROCESSING APPARATUS

MAGNETIC DISK DEVICE AND REFRESH PROCESSING METHOD

STORAGE APPARATUS, CONTROLLER AND CONTROL METHOD

LASER CONTROLLER FOR HEAT-ASSISTED MAGNETIC RECORDING DEVICE

MAGNETIC HEAD, MAGNETIC DISK DRIVE, AND METHOD OF CONTROLLING MAGNE...

MAGNETIC HEAD AND DISK DRIVE WITH THE SAME

MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING AND REPRODUCING SAME

MAGNETIC RECORDING DEVICE, CONTROLLER THEREOF, AND MAGNETIC RECORDI...

MAGNETIC RECORDING DEVICE, HEAD EVALUATION DEVICE, AND WRITE-POLE-E...

SIGNAL REPRODUCING CIRCUIT, MAGNETIC STORAGE DEVICE, AND SIGNAL REP...