Tetsuya Roppongi

Person

Kawasaki-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetoresistance effect device
- Patent number 10,559,412
- Issue date Feb 11, 2020
- TDK Corporation
- Akimasa Kaizu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Magnetic recording head with spin torque oscillator layers satisfyi...
- Patent number 10,121,497
- Issue date Nov 6, 2018
- TDK Coporation
- Hirokazu Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording head with spin torque oscillator, head gimbal as...
- Patent number 10,109,302
- Issue date Oct 23, 2018
- TDK Corporation
- Tetsuhito Shinohara
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording head with spin torque oscillator, head gimbal as...
- Patent number 10,032,470
- Issue date Jul 24, 2018
- TDK Corporation
- Naomichi Degawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Multilayer element including base multilayer body, magnetic sensor...
- Patent number 9,934,797
- Issue date Apr 3, 2018
- TDK Corporation
- Hirokazu Takahashi
- G11 - INFORMATION STORAGE
Information Patent Grant
Microwave assisted magnetic recording head with spin torque oscilla...
- Patent number 9,824,701
- Issue date Nov 21, 2017
- TDK Corporation
- Zhenyao Tang
- G11 - INFORMATION STORAGE
Information Patent Grant
Microwave assisted magnetic head, head gimbal assembly, and magneti...
- Patent number 9,741,373
- Issue date Aug 22, 2017
- TDK Corporation
- Tetsuhito Shinohara
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of setting flying height and flying height setting device
- Patent number 9,230,586
- Issue date Jan 5, 2016
- TDK Corporation
- Norikazu Ota
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermal assisted magnetic recording head with protrusion on leading...
- Patent number 9,190,084
- Issue date Nov 17, 2015
- TDK Corporation
- Kenta Hara
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermal assisted magnetic recording head utilizing uncoupled light
- Patent number 9,165,582
- Issue date Oct 20, 2015
- TDK Corporation
- Shinji Hara
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head, head gimbals assembly,...
- Patent number 9,153,267
- Issue date Oct 6, 2015
- TDK Corporation
- Eiji Komura
- G11 - INFORMATION STORAGE
Information Patent Grant
Plasmon generator and thermally-assisted magnetic recording head ha...
- Patent number 8,964,514
- Issue date Feb 24, 2015
- TDK Corporation
- Kei Hirata
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head using near-field light
- Patent number 8,817,581
- Issue date Aug 26, 2014
- TDK Corporation
- Takeshi Tsutsumi
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for measuring magnetic field of microwave-assisted head
- Patent number 8,680,855
- Issue date Mar 25, 2014
- TDK Corporation
- Isamu Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head including a magnetic pol...
- Patent number 8,605,387
- Issue date Dec 10, 2013
- TDK Corporation
- Kei Hirata
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally assisted magnetic head, magnetic head device and magnetic...
- Patent number 8,570,843
- Issue date Oct 29, 2013
- TDK Corporation
- Kei Hirata
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head including a plasmon gene...
- Patent number 8,503,270
- Issue date Aug 6, 2013
- TDK Corporation
- Keita Kawamori
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head capable of preventing pr...
- Patent number 8,462,594
- Issue date Jun 11, 2013
- TDK Corporation
- Susumu Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Heat-assisted magnetic write head, head gimbals assembly, head arm...
- Patent number 8,437,230
- Issue date May 7, 2013
- TDK Corporation
- Susumu Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head, head gimbal assembly an...
- Patent number 8,400,885
- Issue date Mar 19, 2013
- TDK Corporation
- Daisuke Miyauchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic recording element used for thermally-assisted magnetic rec...
- Patent number 8,385,160
- Issue date Feb 26, 2013
- TDK Corporation
- Shinji Hara
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Heat assist magnetic write head, head gimbals assembly, head arm as...
- Patent number 8,374,062
- Issue date Feb 12, 2013
- TDK Corporation
- Kosuke Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Apparatus for measuring magnetic field of microwave-assisted head
- Patent number 8,358,127
- Issue date Jan 22, 2013
- TDK Corporation
- Isamu Sato
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head including a protruding m...
- Patent number 8,325,570
- Issue date Dec 4, 2012
- TDK Corporation
- Kosuke Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head comprising near-field li...
- Patent number 8,325,567
- Issue date Dec 4, 2012
- TDK Corporation
- Daisuke Miyauchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Microwave assisted magnetic head and magnetic disk device
- Patent number 8,264,916
- Issue date Sep 11, 2012
- TDK Corporation
- Tsutomu Aoyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head having a gap between pro...
- Patent number 8,208,349
- Issue date Jun 26, 2012
- TDK Corporation
- Kosuke Tanaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head and thermally-assisted m...
- Patent number 8,164,986
- Issue date Apr 24, 2012
- TDK Corporation
- Susumu Aoki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetoresistive element and thin film magnetic head
- Patent number 8,144,437
- Issue date Mar 27, 2012
- TDK Corporation
- Daisuke Miyauchi
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Heat-assisted magnetic recording head including plasmon generator
- Patent number 8,125,857
- Issue date Feb 28, 2012
- TDK Corporation
- Kosuke Tanaka
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETORESISTANCE EFFECT DEVICE
- Publication number 20190180901
- Publication date Jun 13, 2019
- TDK Corporation
- Akimasa KAIZU
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
MICROWAVE ASSISTED MAGNETIC RECORDING HEAD WITH SPIN TORQUE OSCILLA...
- Publication number 20170309299
- Publication date Oct 26, 2017
- TDK Corporation
- Zhenyao TANG
- G11 - INFORMATION STORAGE
Information Patent Application
MULTILAYER ELEMENT INCLUDING BASE MULTILAYER BODY, MAGNETIC SENSOR...
- Publication number 20170309301
- Publication date Oct 26, 2017
- TDK Corporation
- Hirokazu TAKAHASHI
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF SETTING FLYING HEIGHT AND FLYING HEIGHT SETTING DEVICE
- Publication number 20160019922
- Publication date Jan 21, 2016
- TDK Corporation
- Norikazu OTA
- G11 - INFORMATION STORAGE
Information Patent Application
THERMAL ASSISTED MAGNETIC RECORDING HEAD WITH PROTRUSION ON LEADING...
- Publication number 20150332717
- Publication date Nov 19, 2015
- TDK Corporation
- Kenta HARA
- G11 - INFORMATION STORAGE
Information Patent Application
THERMAL ASSISTED MAGNETIC RECORDING HEAD UTILIZING UNCOUPLED LIGHT
- Publication number 20150294678
- Publication date Oct 15, 2015
- TDK Corporation
- Shinji HARA
- G11 - INFORMATION STORAGE
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD USING NEAR-FIELD LIGHT
- Publication number 20140241136
- Publication date Aug 28, 2014
- TDK Corporation
- Takeshi TSUTSUMI
- G11 - INFORMATION STORAGE
Information Patent Application
PLASMON GENERATOR AND THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HA...
- Publication number 20140043948
- Publication date Feb 13, 2014
- TDK Corporation
- Kei HIRATA
- G02 - OPTICS
Information Patent Application
APPARATUS FOR MEASURING MAGNETIC FIELD OF MICROWAVE-ASSISTED HEAD
- Publication number 20130301162
- Publication date Nov 14, 2013
- Isamu SATO
- G01 - MEASURING TESTING
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING A MAGNETIC POL...
- Publication number 20130229730
- Publication date Sep 5, 2013
- TDK Corporation
- Kei HIRATA
- G11 - INFORMATION STORAGE
Information Patent Application
THERMALLY ASSISTED MAGNETIC HEAD, MAGNETIC HEAD DEVICE AND MAGNETIC...
- Publication number 20130215725
- Publication date Aug 22, 2013
- TDK Corporation
- Kei HIRATA
- G11 - INFORMATION STORAGE
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD, HEAD GIMBAL ASSEMBLY AN...
- Publication number 20120275280
- Publication date Nov 1, 2012
- TDK Corporation
- Daisuke MIYAUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
MICROWAVE ASSISTED MAGNETIC HEAD AND MAGNETIC DISK DEVICE
- Publication number 20120230167
- Publication date Sep 13, 2012
- TDK Corporation
- Tsutomu AOYAMA
- G11 - INFORMATION STORAGE
Information Patent Application
HEAT-ASSISTED MAGNETIC WRITE HEAD, HEAD GIMBALS ASSEMBLY, HEAD ARM...
- Publication number 20120213042
- Publication date Aug 23, 2012
- TDK Corporation
- Susumu AOKI
- G11 - INFORMATION STORAGE
Information Patent Application
HEAT ASSIST MAGNETIC WRITE HEAD, HEAD GIMBALS ASSEMBLY, HEAD ARM AS...
- Publication number 20120075965
- Publication date Mar 29, 2012
- TDK Corporation
- Kosuke TANAKA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC RECORDING ELEMENT USED FOR THERMALLY-ASSISTED MAGNETIC REC...
- Publication number 20120014230
- Publication date Jan 19, 2012
- TDK Corporation
- Shinji HARA
- G02 - OPTICS
Information Patent Application
MAGNETORESISTIVE ELEMENT AND THIN FILM MAGNETIC HEAD
- Publication number 20110317313
- Publication date Dec 29, 2011
- TDK Corporation
- Daisuke MIYAUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR
- Publication number 20110317528
- Publication date Dec 29, 2011
- TDK Corporation
- Daisuke MIYAUCHI
- G02 - OPTICS
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR
- Publication number 20110286128
- Publication date Nov 24, 2011
- TDK Corporation
- Takeshi TSUTSUMI
- G02 - OPTICS
Information Patent Application
APPARATUS FOR MEASURING MAGNETIC FIELD OF MICROWAVE-ASSISTED HEAD
- Publication number 20110248710
- Publication date Oct 13, 2011
- TDK Corporation
- Isamu SATO
- G01 - MEASURING TESTING
Information Patent Application
HEAT-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR
- Publication number 20110228419
- Publication date Sep 22, 2011
- TDK Corporation
- Kosuke Tanaka
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic Recording Apparatus Provided with Microwave-Assisted Head
- Publication number 20110222185
- Publication date Sep 15, 2011
- TDK Corporation
- Tetsuya Roppongi
- G11 - INFORMATION STORAGE
Information Patent Application
Thermally-Assisted Magnetic Recording Head Having Near-Field Optica...
- Publication number 20110176398
- Publication date Jul 21, 2011
- TDK Corporation
- Kosuke Tanaka
- G11 - INFORMATION STORAGE
Information Patent Application
Thermally-Assisted Magnetic Recording Head Comprising Near-Field Li...
- Publication number 20110058272
- Publication date Mar 10, 2011
- TDK Corporation
- Daisuke Miyauchi
- G11 - INFORMATION STORAGE
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD AND THERMALLY-ASSISTED M...
- Publication number 20100302672
- Publication date Dec 2, 2010
- TDK Corporation
- Susumu AOKI
- G11 - INFORMATION STORAGE
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD AND THERMALLY-ASSISTED M...
- Publication number 20100259845
- Publication date Oct 14, 2010
- TDK Corporation
- Daisuke MIYAUCHI
- G11 - INFORMATION STORAGE
Information Patent Application
Thin film magnetic head, head gimbal assembly, head arm assembly an...
- Publication number 20080291582
- Publication date Nov 27, 2008
- TDK Corporation
- Kei Hirata
- G11 - INFORMATION STORAGE
Information Patent Application
Perpendicular magnetic write head and method of manufacturing perpe...
- Publication number 20080180858
- Publication date Jul 31, 2008
- TDK Corporation
- Norikazu Ota
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic recording method using ferromagnetic resonance and thin-fi...
- Publication number 20080151436
- Publication date Jun 26, 2008
- TDK Corporation
- Isamu Sato
- G11 - INFORMATION STORAGE
Information Patent Application
THIN-FILM MAGNETIC HEAD WITH HEATING PORTION AND PROTRUSION ADJUSTM...
- Publication number 20080094755
- Publication date Apr 24, 2008
- TDK Corporation
- Norikazu OTA
- G11 - INFORMATION STORAGE

Tetsuya Roppongi

Person

Patents Grantslast 30 patents

Magnetoresistance effect device

Magnetic recording head with spin torque oscillator layers satisfyi...

Magnetic recording head with spin torque oscillator, head gimbal as...

Magnetic recording head with spin torque oscillator, head gimbal as...

Multilayer element including base multilayer body, magnetic sensor...

Microwave assisted magnetic recording head with spin torque oscilla...

Microwave assisted magnetic head, head gimbal assembly, and magneti...

Method of setting flying height and flying height setting device

Thermal assisted magnetic recording head with protrusion on leading...

Thermal assisted magnetic recording head utilizing uncoupled light

Thermally-assisted magnetic recording head, head gimbals assembly,...

Plasmon generator and thermally-assisted magnetic recording head ha...

Thermally-assisted magnetic recording head using near-field light

Apparatus for measuring magnetic field of microwave-assisted head

Thermally-assisted magnetic recording head including a magnetic pol...

Thermally assisted magnetic head, magnetic head device and magnetic...

Thermally-assisted magnetic recording head including a plasmon gene...

Thermally-assisted magnetic recording head capable of preventing pr...

Heat-assisted magnetic write head, head gimbals assembly, head arm...

Thermally-assisted magnetic recording head, head gimbal assembly an...

Magnetic recording element used for thermally-assisted magnetic rec...

Heat assist magnetic write head, head gimbals assembly, head arm as...

Apparatus for measuring magnetic field of microwave-assisted head

Thermally-assisted magnetic recording head including a protruding m...

Thermally-assisted magnetic recording head comprising near-field li...

Microwave assisted magnetic head and magnetic disk device

Thermally-assisted magnetic recording head having a gap between pro...

Thermally-assisted magnetic recording head and thermally-assisted m...

Magnetoresistive element and thin film magnetic head

Heat-assisted magnetic recording head including plasmon generator

Patents Applicationslast 30 patents

MAGNETORESISTANCE EFFECT DEVICE

MICROWAVE ASSISTED MAGNETIC RECORDING HEAD WITH SPIN TORQUE OSCILLA...

MULTILAYER ELEMENT INCLUDING BASE MULTILAYER BODY, MAGNETIC SENSOR...

METHOD OF SETTING FLYING HEIGHT AND FLYING HEIGHT SETTING DEVICE

THERMAL ASSISTED MAGNETIC RECORDING HEAD WITH PROTRUSION ON LEADING...

THERMAL ASSISTED MAGNETIC RECORDING HEAD UTILIZING UNCOUPLED LIGHT

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD USING NEAR-FIELD LIGHT

PLASMON GENERATOR AND THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HA...

APPARATUS FOR MEASURING MAGNETIC FIELD OF MICROWAVE-ASSISTED HEAD

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING A MAGNETIC POL...

THERMALLY ASSISTED MAGNETIC HEAD, MAGNETIC HEAD DEVICE AND MAGNETIC...

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD, HEAD GIMBAL ASSEMBLY AN...

MICROWAVE ASSISTED MAGNETIC HEAD AND MAGNETIC DISK DEVICE

HEAT-ASSISTED MAGNETIC WRITE HEAD, HEAD GIMBALS ASSEMBLY, HEAD ARM...

HEAT ASSIST MAGNETIC WRITE HEAD, HEAD GIMBALS ASSEMBLY, HEAD ARM AS...

MAGNETIC RECORDING ELEMENT USED FOR THERMALLY-ASSISTED MAGNETIC REC...

MAGNETORESISTIVE ELEMENT AND THIN FILM MAGNETIC HEAD

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR

APPARATUS FOR MEASURING MAGNETIC FIELD OF MICROWAVE-ASSISTED HEAD

HEAT-ASSISTED MAGNETIC RECORDING HEAD INCLUDING PLASMON GENERATOR

Magnetic Recording Apparatus Provided with Microwave-Assisted Head

Thermally-Assisted Magnetic Recording Head Having Near-Field Optica...

Thermally-Assisted Magnetic Recording Head Comprising Near-Field Li...

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD AND THERMALLY-ASSISTED M...

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD AND THERMALLY-ASSISTED M...

Thin film magnetic head, head gimbal assembly, head arm assembly an...

Perpendicular magnetic write head and method of manufacturing perpe...

Magnetic recording method using ferromagnetic resonance and thin-fi...

THIN-FILM MAGNETIC HEAD WITH HEATING PORTION AND PROTRUSION ADJUSTM...