Gaku KOIZUMI

Person

Ome-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk device
- Patent number 12,027,187
- Issue date Jul 2, 2024
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and magnetic recording/reproducing device
- Patent number 11,817,135
- Issue date Nov 14, 2023
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device
- Patent number 11,626,132
- Issue date Apr 11, 2023
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device
- Patent number 11,404,084
- Issue date Aug 2, 2022
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device
- Patent number 11,176,965
- Issue date Nov 16, 2021
- Kabushiki Kaisha Toshiba
- Mio Okada
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and disk device with heat actuators
- Patent number 10,867,624
- Issue date Dec 15, 2020
- Kabushiki Kaisha Toshiba
- Toru Watanabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device
- Patent number 10,825,473
- Issue date Nov 3, 2020
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording device capable of stabilizing oscillations of hi...
- Patent number 10,741,201
- Issue date Aug 11, 2020
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and disk device having gap layers with different magn...
- Patent number 10,657,990
- Issue date May 19, 2020
- Kabushiki Kaisha Toshiba
- Masaya Ohtake
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with high-frequency oscillating element and disk devi...
- Patent number 10,546,600
- Issue date Jan 28, 2020
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method for correcting position offset of the heads on two dimension...
- Patent number 10,529,365
- Issue date Jan 7, 2020
- Kabushiki Kaisha Toshiba
- Naoki Tagami
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device
- Patent number 10,504,543
- Issue date Dec 10, 2019
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device which controls a recording operation and a non...
- Patent number 10,403,308
- Issue date Sep 3, 2019
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording apparatus
- Patent number 10,360,931
- Issue date Jul 23, 2019
- Kabushiki Kaisha Toshiba
- Masaya Ohtake
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having magnetic pole and shield, and magnetic recordi...
- Patent number 10,276,193
- Issue date Apr 30, 2019
- Kabushiki Kaisha Toshiba
- Naoyuki Narita
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive and recording head control method
- Patent number 10,014,009
- Issue date Jul 3, 2018
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head, disk drive with the same and method of manufacturing...
- Patent number 9,792,933
- Issue date Oct 17, 2017
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Determining oscillation characteristic for high-frequency assisted...
- Patent number 9,305,584
- Issue date Apr 5, 2016
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk storage apparatus and method for determining malfunction of hi...
- Patent number 8,896,947
- Issue date Nov 25, 2014
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Current drive type magnetic head and disk drive with the same
- Patent number 8,885,296
- Issue date Nov 11, 2014
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk storage apparatus, write control apparatus and write control m...
- Patent number 8,810,954
- Issue date Aug 19, 2014
- Kabushiki Kaisha Toshiba
- Tomoko Taguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive
- Patent number 8,228,627
- Issue date Jul 24, 2012
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular recording and disk drive with the same
- Patent number 8,159,781
- Issue date Apr 17, 2012
- Kabushiki Kaisha Toshiba
- Tomoko Taguchi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20240105219
- Publication date Mar 28, 2024
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING/REPRODUCING DEVICE
- Publication number 20230245678
- Publication date Aug 3, 2023
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20230127221
- Publication date Apr 27, 2023
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20220399036
- Publication date Dec 15, 2022
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20220084551
- Publication date Mar 17, 2022
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20220036923
- Publication date Feb 3, 2022
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20210272597
- Publication date Sep 2, 2021
- Kabushiki Kaisha Toshiba
- Mio Okada
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND DISK DEVICE HAVING THE SAME
- Publication number 20200243108
- Publication date Jul 30, 2020
- Kabushiki Kaisha Toshiba
- Masaya OHTAKE
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING DEVICE CAPABLE OF STABILIZING OSCILLATIONS OF HI...
- Publication number 20200211585
- Publication date Jul 2, 2020
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20200075046
- Publication date Mar 5, 2020
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND READ/WRITE OFFSET CORRECTION METHOD
- Publication number 20190198050
- Publication date Jun 27, 2019
- TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
- Naoki Tagami
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING APPARATUS
- Publication number 20190189149
- Publication date Jun 20, 2019
- Kabushiki Kaisha Toshiba
- Masaya OHTAKE
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE
- Publication number 20190088275
- Publication date Mar 21, 2019
- Kabushiki Kaisha Toshiba
- Naoyuki NARITA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND DISK DEVICE HAVING THE SAME
- Publication number 20190066717
- Publication date Feb 28, 2019
- Kabushiki Kaisha Toshiba
- Masaya Ohtake
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND RECORDING HEAD CONTROL METHOD
- Publication number 20190051322
- Publication date Feb 14, 2019
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD, DISK DRIVE WITH THE SAME AND METHOD OF MANUFACTURING...
- Publication number 20170092304
- Publication date Mar 30, 2017
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
DETERMINING OSCILLATION CHARACTERISTIC FOR HIGH-FREQUENCY ASSISTED...
- Publication number 20160064016
- Publication date Mar 3, 2016
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
DISK STORAGE APPARATUS AND METHOD FOR DETERMINING MALFUNCTION OF HI...
- Publication number 20140168808
- Publication date Jun 19, 2014
- Kabushiki Kaisha Toshiba
- Gaku Koizumi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND DISK DRIVE WITH THE SAME
- Publication number 20120092787
- Publication date Apr 19, 2012
- Kabushiki Kaisha Toshiba
- Gaku KOIZUMI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD AND DISK DRIVE WITH THE SAME
- Publication number 20110128652
- Publication date Jun 2, 2011
- Kabushiki Kaisha Toshiba
- Tomoko TAGUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DRIVE
- Publication number 20100157462
- Publication date Jun 24, 2010
- Kabushiki Kaisha Toshiba
- Gaku KOIZUMI
- G11 - INFORMATION STORAGE

Gaku KOIZUMI

Person

Patents Grantslast 30 patents

Magnetic disk device

Magnetic head and magnetic recording/reproducing device

Magnetic disk device

Magnetic disk device

Magnetic disk device

Magnetic head and disk device with heat actuators

Magnetic disk device

Magnetic recording device capable of stabilizing oscillations of hi...

Magnetic head and disk device having gap layers with different magn...

Magnetic head with high-frequency oscillating element and disk devi...

Method for correcting position offset of the heads on two dimension...

Magnetic disk device

Magnetic disk device which controls a recording operation and a non...

Magnetic recording apparatus

Magnetic head having magnetic pole and shield, and magnetic recordi...

Magnetic disk drive and recording head control method

Magnetic head, disk drive with the same and method of manufacturing...

Determining oscillation characteristic for high-frequency assisted...

Disk storage apparatus and method for determining malfunction of hi...

Current drive type magnetic head and disk drive with the same

Disk storage apparatus, write control apparatus and write control m...

Magnetic disk drive

Magnetic head for perpendicular recording and disk drive with the same

Patents Applicationslast 30 patents

MAGNETIC DISK DEVICE

MAGNETIC HEAD AND MAGNETIC RECORDING/REPRODUCING DEVICE

MAGNETIC DISK DEVICE

MAGNETIC DISK DEVICE

MAGNETIC DISK DEVICE

MAGNETIC DISK DEVICE

MAGNETIC DISK DEVICE

MAGNETIC HEAD AND DISK DEVICE HAVING THE SAME

MAGNETIC RECORDING DEVICE CAPABLE OF STABILIZING OSCILLATIONS OF HI...

MAGNETIC DISK DEVICE

MAGNETIC DISK DEVICE AND READ/WRITE OFFSET CORRECTION METHOD

MAGNETIC RECORDING APPARATUS

MAGNETIC HEAD AND MAGNETIC RECORDING AND REPRODUCING DEVICE

MAGNETIC HEAD AND DISK DEVICE HAVING THE SAME

MAGNETIC DISK DEVICE AND RECORDING HEAD CONTROL METHOD

MAGNETIC HEAD, DISK DRIVE WITH THE SAME AND METHOD OF MANUFACTURING...

DETERMINING OSCILLATION CHARACTERISTIC FOR HIGH-FREQUENCY ASSISTED...

DISK STORAGE APPARATUS AND METHOD FOR DETERMINING MALFUNCTION OF HI...

MAGNETIC HEAD AND DISK DRIVE WITH THE SAME

MAGNETIC HEAD AND DISK DRIVE WITH THE SAME

MAGNETIC DISK DRIVE