Ikuya Tagawa

Person

Hiratsuka-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Hard disk drive with contact detection using a spin torque oscillator
- Patent number 9,355,668
- Issue date May 31, 2016
- HGST Netherlands B.V.
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Heat sink for a spin torque oscillator (STO) in microwave assisted...
- Patent number 8,995,088
- Issue date Mar 31, 2015
- HGST Netherlands B.V.
- Carl Boone
- G11 - INFORMATION STORAGE
Information Patent Grant
Implementing spin torque oscillator power-on oscillation checker us...
- Patent number 8,917,465
- Issue date Dec 23, 2014
- HGST Netherlands B.V.
- John Contreras
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic data recording system with mirror image asymmetric magneti...
- Patent number 8,848,317
- Issue date Sep 30, 2014
- HGST Netherlands B.V.
- Masato Shiimoto
- G11 - INFORMATION STORAGE
Information Patent Grant
Energy-assisted magnetic recording head and systems thereof with en...
- Patent number 8,760,779
- Issue date Jun 24, 2014
- HGST Netherlands B.V.
- William D. Johns
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic storage apparatus, head drive controller, and head drive c...
- Patent number 8,643,972
- Issue date Feb 4, 2014
- Hitachi, Ltd.
- Yoshihiro Shiroishi
- G11 - INFORMATION STORAGE
Information Patent Grant
Implementing integrated spin-torque oscillator and interface bias c...
- Patent number 8,570,684
- Issue date Oct 29, 2013
- HGST Netherlands B.V.
- John Thomas Contreras
- G11 - INFORMATION STORAGE
Information Patent Grant
Write track shift control in shingled-microwave-assisted magnetic r...
- Patent number 8,553,507
- Issue date Oct 8, 2013
- HGST Netherlands B.V.
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Controlling an overshoot amplitude level based on a recording data...
- Patent number 7,830,631
- Issue date Nov 9, 2010
- Hitachi Global Storage Technologies Netherlands B.V.
- Takeshi Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head wherein at least one of a return pole, a fi...
- Patent number 7,518,825
- Issue date Apr 14, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Syuji Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Perpendicular hard disk drive resistive against external magnetic f...
- Patent number 7,486,485
- Issue date Feb 3, 2009
- Hitachi Global Storage Technologies Netherlands B.V.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of demagnetizing magnetic recording medium and apparatus for...
- Patent number 7,468,852
- Issue date Dec 23, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Syuji Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head with soft magnetic shield and magnetic storage
- Patent number 7,450,349
- Issue date Nov 11, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic hard disk drive with countermeasure against spike noise
- Patent number 7,428,115
- Issue date Sep 23, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Takeshi Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording system with improved magnetic shield
- Patent number 7,408,738
- Issue date Aug 5, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Recording magnetic head and magnetic storage device using the same
- Patent number 7,016,149
- Issue date Mar 21, 2006
- Fujitsu Limited
- Tomoko Kutsuzawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film head with nickel-iron alloy non-magnetic substratum betwe...
- Patent number 6,970,324
- Issue date Nov 29, 2005
- Fujitsu Limited
- Shoji Ikeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistive transducer having stronger longitudinal bias field
- Patent number 6,876,524
- Issue date Apr 5, 2005
- Fujitsu Limited
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Soft magnetic film of FeCoMO having a high saturation flux density,...
- Patent number 6,828,046
- Issue date Dec 7, 2004
- Fujitsu Limited
- Shoji Ikeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic thin film, magnetic thin film forming method, and recordin...
- Patent number 6,822,831
- Issue date Nov 23, 2004
- Fujitsu Limited
- Shoji Ikeda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of producing thin film magnetic head
- Patent number 6,813,824
- Issue date Nov 9, 2004
- Fujitsu Limited
- Minoru Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head with short lower magnetic pole piece
- Patent number 6,751,052
- Issue date Jun 15, 2004
- Fujitsu Limited
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording medium and magnetic recording medium driver for...
- Patent number 6,720,075
- Issue date Apr 13, 2004
- Fujitsu Limited
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head, method of manufacturing magnetic head and informatio...
- Patent number 6,624,972
- Issue date Sep 23, 2003
- Fujitsu Limited
- Syuji Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head
- Patent number 6,614,620
- Issue date Sep 2, 2003
- Fujitsu Limited
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thin film magnetic head including a coil insulating resin filler an...
- Patent number 6,567,239
- Issue date May 20, 2003
- Fujitsu Limited
- Minoru Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and method of manufacturing the same
- Patent number 6,510,024
- Issue date Jan 21, 2003
- Fujitsu Limited
- Yoshinori Otsuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Information recording device having a function of erasing informati...
- Patent number 6,507,448
- Issue date Jan 14, 2003
- Fujitsu Limited
- Syuji Nishida
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head and method of manufacturing the same
- Patent number 6,282,776
- Issue date Sep 4, 2001
- Fujitsu Limited
- Yoshinori Otsuka
- G11 - INFORMATION STORAGE
Information Patent Grant
Spin valve head reducing barkhausen noise
- Patent number 6,094,325
- Issue date Jul 25, 2000
- Fujitsu Limited
- Ikuya Tagawa
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
READBACK OF INFORMATION FROM A MOVING FERROELECTRIC RECORDING MEDIU...
- Publication number 20180350397
- Publication date Dec 6, 2018
- Western Digital Technologies
- Takuya Matsumoto
- G11 - INFORMATION STORAGE
Information Patent Application
HEAT SINK FOR A SPIN TORQUE OSCILLATOR (STO) IN MICROWAVE ASSISTED...
- Publication number 20150109699
- Publication date Apr 23, 2015
- HGST NETHERLANDS B.V.
- Carl Boone
- G11 - INFORMATION STORAGE
Information Patent Application
Hard Disk Drive With Contact Detection Using a Spin Torque Oscillator
- Publication number 20140347969
- Publication date Nov 27, 2014
- HGST NETHERLANDS B.V.
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC DATA RECORDING SYSTEM WITH MIRROR IMAGE ASYMMETRIC MAGNETI...
- Publication number 20140177105
- Publication date Jun 26, 2014
- HGST NETHERLANDS B.V.
- Masato Shiimoto
- G11 - INFORMATION STORAGE
Information Patent Application
MICROWAVE-ASSISTED MAGNETIC RECORDING HEAD AND SYSTEMS THEREOF WITH...
- Publication number 20130170060
- Publication date Jul 4, 2013
- Hitachi Global Storage Technologies Netherlands B.V.
- William D. Johns
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC STORAGE APPARATUS, HEAD DRIVE CONTROLLER, AND HEAD DRIVE C...
- Publication number 20130083423
- Publication date Apr 4, 2013
- Hitachi, Ltd.
- Yoshihiro Shiroishi
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING HEAD AND MAGNETIC DISK STORAGE DEVICE
- Publication number 20110141616
- Publication date Jun 16, 2011
- Hitachi Global Storage Technologies Netherlands B.V.
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic disk drive
- Publication number 20080043358
- Publication date Feb 21, 2008
- Hitachi Global Storage Technologies Netherlands B.V.
- Takeshi Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Application
Method of demagnetizing magnetic recording medium and apparatus for...
- Publication number 20060250716
- Publication date Nov 9, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Syuji Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
Thin film magnetic head
- Publication number 20060139815
- Publication date Jun 29, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Syuji Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head with soft magnetic shield and magnetic storage
- Publication number 20060119984
- Publication date Jun 8, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular hard disk drive resistive against external magnetic f...
- Publication number 20060092556
- Publication date May 4, 2006
- Hitachi Global Storage Technologies Netherlands B.V.
- Takehiko Hamaguchi
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic hard disk drive with countermeasure against spike noise
- Publication number 20050233177
- Publication date Oct 20, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Takeshi Nakagawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording system with soft magnetic shield
- Publication number 20050225895
- Publication date Oct 13, 2005
- Hitachi Global Storage Technologies Netherlands B.V.
- Yasutaka Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic thin film and magnetic head using the same
- Publication number 20050175864
- Publication date Aug 11, 2005
- FUJITSU LIMITED
- Shoji Ikeda
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head
- Publication number 20050135006
- Publication date Jun 23, 2005
- FUJITSU LIMITED
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Application
Recording magnetic head and magnetic storage device using the same
- Publication number 20030174441
- Publication date Sep 18, 2003
- FUJITSU LIMITED
- Tomoko Kutsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
Soft magnetic film having higher saturation magnetization
- Publication number 20030147183
- Publication date Aug 7, 2003
- FUJITSU LIMITED
- Shoji Ikeda
- G11 - INFORMATION STORAGE
Information Patent Application
Method of producing thin film magnetic head
- Publication number 20030090835
- Publication date May 15, 2003
- FUJITSU LIMITED
- Minoru Hasegawa
- G11 - INFORMATION STORAGE
Information Patent Application
Soft magnetic film of FeCoMO having a high saturation flux density,...
- Publication number 20020150790
- Publication date Oct 17, 2002
- FUJITSU LIMITED
- Shoji Ikeda
- B82 - NANO-TECHNOLOGY
Information Patent Application
Magnetic thin film, magnetic thin film forming method, and recordin...
- Publication number 20020129875
- Publication date Sep 19, 2002
- FUJITSU LIMITED
- Shoji Ikeda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetic recording medium and magnetic recording medium driver for...
- Publication number 20020094454
- Publication date Jul 18, 2002
- FUJITSU LIMITED
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetoresistive transducer having stronger longitudinal bias field
- Publication number 20020071224
- Publication date Jun 13, 2002
- FUJITSU LIMITED
- Ikuya Tagawa
- B82 - NANO-TECHNOLOGY
Information Patent Application
Thin film magnetic head
- Publication number 20020048116
- Publication date Apr 25, 2002
- FUJITSU LIMITED
- Ikuya Tagawa
- G11 - INFORMATION STORAGE
Information Patent Application
Thin film magnetic head and magnetic head assembly employing the same
- Publication number 20020024765
- Publication date Feb 28, 2002
- FUJITSU LIMITED
- Tomoko Kutsuzawa
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head and method of manufacturing the same
- Publication number 20010050830
- Publication date Dec 13, 2001
- FUJITSU LIMITED
- Yoshinori Otsuka
- G11 - INFORMATION STORAGE
Information Patent Application
Thin film magnetic head with tip sub-magnetic pole and method of ma...
- Publication number 20010043445
- Publication date Nov 22, 2001
- FUJITSU LIMITED
- Syuji Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
Information recording device
- Publication number 20010043418
- Publication date Nov 22, 2001
- FUJITSU LIMITED
- Syuji Nishida
- G11 - INFORMATION STORAGE
Information Patent Application
Thin film magnetic head with tip sub-magnetic pole and method of ma...
- Publication number 20010013992
- Publication date Aug 16, 2001
- FUJITSU LIMITED
- Ikuya Tagawa
- G11 - INFORMATION STORAGE

Ikuya Tagawa

Person

Patents Grantslast 30 patents

Hard disk drive with contact detection using a spin torque oscillator

Heat sink for a spin torque oscillator (STO) in microwave assisted...

Implementing spin torque oscillator power-on oscillation checker us...

Magnetic data recording system with mirror image asymmetric magneti...

Energy-assisted magnetic recording head and systems thereof with en...

Magnetic storage apparatus, head drive controller, and head drive c...

Implementing integrated spin-torque oscillator and interface bias c...

Write track shift control in shingled-microwave-assisted magnetic r...

Controlling an overshoot amplitude level based on a recording data...

Thin film magnetic head wherein at least one of a return pole, a fi...

Perpendicular hard disk drive resistive against external magnetic f...

Method of demagnetizing magnetic recording medium and apparatus for...

Magnetic head with soft magnetic shield and magnetic storage

Magnetic hard disk drive with countermeasure against spike noise

Magnetic recording system with improved magnetic shield

Recording magnetic head and magnetic storage device using the same

Thin film head with nickel-iron alloy non-magnetic substratum betwe...

Magnetoresistive transducer having stronger longitudinal bias field

Soft magnetic film of FeCoMO having a high saturation flux density,...

Magnetic thin film, magnetic thin film forming method, and recordin...

Method of producing thin film magnetic head

Thin film magnetic head with short lower magnetic pole piece

Magnetic recording medium and magnetic recording medium driver for...

Magnetic head, method of manufacturing magnetic head and informatio...

Thin film magnetic head

Thin film magnetic head including a coil insulating resin filler an...

Magnetic head and method of manufacturing the same

Information recording device having a function of erasing informati...

Magnetic head and method of manufacturing the same

Spin valve head reducing barkhausen noise

Patents Applicationslast 30 patents

READBACK OF INFORMATION FROM A MOVING FERROELECTRIC RECORDING MEDIU...

HEAT SINK FOR A SPIN TORQUE OSCILLATOR (STO) IN MICROWAVE ASSISTED...

Hard Disk Drive With Contact Detection Using a Spin Torque Oscillator

MAGNETIC DATA RECORDING SYSTEM WITH MIRROR IMAGE ASYMMETRIC MAGNETI...

MICROWAVE-ASSISTED MAGNETIC RECORDING HEAD AND SYSTEMS THEREOF WITH...

MAGNETIC STORAGE APPARATUS, HEAD DRIVE CONTROLLER, AND HEAD DRIVE C...

MAGNETIC RECORDING HEAD AND MAGNETIC DISK STORAGE DEVICE

Magnetic disk drive

Method of demagnetizing magnetic recording medium and apparatus for...

Thin film magnetic head

Magnetic head with soft magnetic shield and magnetic storage

Perpendicular hard disk drive resistive against external magnetic f...

Magnetic hard disk drive with countermeasure against spike noise

Magnetic recording system with soft magnetic shield

Magnetic thin film and magnetic head using the same

Magnetic head

Recording magnetic head and magnetic storage device using the same

Soft magnetic film having higher saturation magnetization

Method of producing thin film magnetic head

Soft magnetic film of FeCoMO having a high saturation flux density,...

Magnetic thin film, magnetic thin film forming method, and recordin...

Magnetic recording medium and magnetic recording medium driver for...

Magnetoresistive transducer having stronger longitudinal bias field

Thin film magnetic head

Thin film magnetic head and magnetic head assembly employing the same

Magnetic head and method of manufacturing the same

Thin film magnetic head with tip sub-magnetic pole and method of ma...

Information recording device

Thin film magnetic head with tip sub-magnetic pole and method of ma...