Takuji Matsuzawa

Person

Kashiwa Chiba, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic disk drive and method of setting a notch filter of the drive
- Patent number 11,990,153
- Issue date May 21, 2024
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and parameter setting method of magnetic disk...
- Patent number 11,862,193
- Issue date Jan 2, 2024
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and filter coefficient setting method of the m...
- Patent number 11,804,244
- Issue date Oct 31, 2023
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and method of reducing microactuator voltage
- Patent number 11,514,937
- Issue date Nov 29, 2022
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device
- Patent number 11,094,341
- Issue date Aug 17, 2021
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Dual state actuators controlling for magnetic recording device
- Patent number 10,930,311
- Issue date Feb 23, 2021
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk device and method for suppressing disturbance compone...
- Patent number 10,497,385
- Issue date Dec 3, 2019
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Position detecting device for detecting position in accordance with...
- Patent number 9,947,351
- Issue date Apr 17, 2018
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk apparatus, driver circuit, and control method
- Patent number 9,824,707
- Issue date Nov 21, 2017
- Kabushiki Kaisha Toshiba
- Takayuki Kawabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Disc device, controlling device and method
- Patent number 9,691,420
- Issue date Jun 27, 2017
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Piezoelectric device drive method, piezoelectric device drive appar...
- Patent number 8,934,190
- Issue date Jan 13, 2015
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk storage apparatus and method for servo controlling
- Patent number 8,902,540
- Issue date Dec 2, 2014
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk apparatus and data recording method
- Patent number 8,896,959
- Issue date Nov 25, 2014
- Kabushiki Kaisha Toshiba
- Kazuto Kashiwagi
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk storage apparatus and method for servo controlling
- Patent number 8,896,952
- Issue date Nov 25, 2014
- Kabushiki Kaisha Toshiba
- Takayuki Kawabe
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk storage apparatus and servo control method
- Patent number 8,804,274
- Issue date Aug 12, 2014
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive having dual-stage actuator and head position es...
- Patent number 8,717,703
- Issue date May 6, 2014
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic disk drive having microactuator
- Patent number 8,363,350
- Issue date Jan 29, 2013
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20240321304
- Publication date Sep 26, 2024
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DRIVE AND METHOD OF SETTING A NOTCH FILTER OF THE DRIVE
- Publication number 20240112699
- Publication date Apr 4, 2024
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND PARAMETER SETTING METHOD OF MAGNETIC DISK...
- Publication number 20230238031
- Publication date Jul 27, 2023
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE AND FILTER COEFFICIENT SETTING METHOD OF THE M...
- Publication number 20220084552
- Publication date Mar 17, 2022
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DEVICE
- Publication number 20210280210
- Publication date Sep 9, 2021
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
DUAL STATE ACTUATORS CONTROLLING FOR MAGNETIC RECORDING DEVICE
- Publication number 20200395043
- Publication date Dec 17, 2020
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
DISK APPARATUS, DRIVER CIRCUIT, AND CONTROL METHOD
- Publication number 20170169844
- Publication date Jun 15, 2017
- Kabushiki Kaisha Toshiba
- Takayuki Kawabe
- G11 - INFORMATION STORAGE
Information Patent Application
DISC DEVICE, CONTROLLING DEVICE AND METHOD
- Publication number 20160064021
- Publication date Mar 3, 2016
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
DISK STORAGE APPARATUS AND METHOD FOR SERVO CONTROLLING
- Publication number 20140153131
- Publication date Jun 5, 2014
- Kabushiki Kaisha Toshiba
- Takuji MATSUZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
DISK STORAGE APPARATUS AND METHOD FOR SERVO CONTROLLING
- Publication number 20140153127
- Publication date Jun 5, 2014
- Kabushiki Kaisha Toshiba
- Takayuki KAWABE
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DRIVE HAVING DUAL-STAGE ACTUATOR AND HEAD POSITION ES...
- Publication number 20130258520
- Publication date Oct 3, 2013
- Kabushiki Kaisha Toshiba
- Takuji MATSUZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
PIEZOELETRIC DEVICE DRIVE METHOD, PIEZOELECTRIC DEVICE DRIVE APPARA...
- Publication number 20130188277
- Publication date Jul 25, 2013
- Kabushiki Kaisha Toshiba
- Takuji MATSUZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DISK DRIVE HAVING MICROACTUATOR
- Publication number 20120243119
- Publication date Sep 27, 2012
- Kabushiki Kaisha Toshiba
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
DESIGN OF FEEDFORWARD CONTROLLER FOR CONTROLLING POSITION OF MAGNET...
- Publication number 20090122438
- Publication date May 14, 2009
- Fujitsu Limited
- Takuji Matsuzawa
- G11 - INFORMATION STORAGE

Takuji Matsuzawa

Person

Patents Grantslast 30 patents

Magnetic disk drive and method of setting a notch filter of the drive

Magnetic disk device and parameter setting method of magnetic disk...

Magnetic disk device and filter coefficient setting method of the m...

Magnetic disk device and method of reducing microactuator voltage

Magnetic disk device

Dual state actuators controlling for magnetic recording device

Magnetic disk device and method for suppressing disturbance compone...

Position detecting device for detecting position in accordance with...

Disk apparatus, driver circuit, and control method

Disc device, controlling device and method

Piezoelectric device drive method, piezoelectric device drive appar...

Disk storage apparatus and method for servo controlling

Magnetic disk apparatus and data recording method

Disk storage apparatus and method for servo controlling

Disk storage apparatus and servo control method

Magnetic disk drive having dual-stage actuator and head position es...

Magnetic disk drive having microactuator

Patents Applicationslast 30 patents

MAGNETIC DISK DEVICE

MAGNETIC DISK DRIVE AND METHOD OF SETTING A NOTCH FILTER OF THE DRIVE

MAGNETIC DISK DEVICE AND PARAMETER SETTING METHOD OF MAGNETIC DISK...

MAGNETIC DISK DEVICE AND FILTER COEFFICIENT SETTING METHOD OF THE M...

MAGNETIC DISK DEVICE

DUAL STATE ACTUATORS CONTROLLING FOR MAGNETIC RECORDING DEVICE

DISK APPARATUS, DRIVER CIRCUIT, AND CONTROL METHOD

DISC DEVICE, CONTROLLING DEVICE AND METHOD

DISK STORAGE APPARATUS AND METHOD FOR SERVO CONTROLLING

DISK STORAGE APPARATUS AND METHOD FOR SERVO CONTROLLING

MAGNETIC DISK DRIVE HAVING DUAL-STAGE ACTUATOR AND HEAD POSITION ES...

PIEZOELETRIC DEVICE DRIVE METHOD, PIEZOELECTRIC DEVICE DRIVE APPARA...

MAGNETIC DISK DRIVE HAVING MICROACTUATOR

DESIGN OF FEEDFORWARD CONTROLLER FOR CONTROLLING POSITION OF MAGNET...