Yukinori IKEGAWA

Person

Milpitas, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Iridium film with a thin iridium template layer for a heat-assisted...
- Patent number 11,996,126
- Issue date May 28, 2024
- Headway Technologies, Inc.
- Koji Shimazawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method for magnetoresistive element
- Patent number 11,664,045
- Issue date May 30, 2023
- Headway Technologies, Inc.
- Hironori Araki
- G11 - INFORMATION STORAGE
Information Patent Grant
Waveguide and manufacturing method thereof
- Patent number 11,604,313
- Issue date Mar 14, 2023
- Headway Technologies, Inc.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including main pole having top surface including firs...
- Patent number 11,514,931
- Issue date Nov 29, 2022
- Headway Technologies, Inc.
- Hironori Araki
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method for magnetic head for perpendicular magnetic r...
- Patent number 11,495,251
- Issue date Nov 8, 2022
- Headway Technologies, Inc.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head having plasmon generator...
- Patent number 11,410,688
- Issue date Aug 9, 2022
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Near-field light generator and thermally-assisted magnetic recordin...
- Patent number 11,049,516
- Issue date Jun 29, 2021
- Headway Technologies, Inc.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including a return path section
- Patent number 10,872,624
- Issue date Dec 22, 2020
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Waveguide including first and second layers and manufacturing metho...
- Patent number 10,545,287
- Issue date Jan 28, 2020
- Headway Technologies, Inc.
- Yukinori Ikegawa
- G02 - OPTICS
Information Patent Grant
Magnetic head for perpendicular magnetic recording including two si...
- Patent number 10,366,712
- Issue date Jul 30, 2019
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Method of manufacturing a plasmon generator
- Patent number 9,958,769
- Issue date May 1, 2018
- Headway Technologies, Inc.
- Hironori Araki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic head for perpendicular magnetic recording with a coil incl...
- Patent number 9,824,702
- Issue date Nov 21, 2017
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular magnetic recording including a coil...
- Patent number 9,792,929
- Issue date Oct 17, 2017
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing a thin-film magnetic head including a coil...
- Patent number 9,777,387
- Issue date Oct 3, 2017
- Headway Technologies, Inc.
- Yukinori Ikegawa
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Grant
Plasmon generator including a heat sink layer interposed between tw...
- Patent number 9,754,614
- Issue date Sep 5, 2017
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G02 - OPTICS
Information Patent Grant
Magnetic head for perpendicular magnetic recording including a coil...
- Patent number 9,741,370
- Issue date Aug 22, 2017
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular magnetic recording with a coil incl...
- Patent number 9,704,513
- Issue date Jul 11, 2017
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular magnetic recording capable of preve...
- Patent number 9,653,100
- Issue date May 16, 2017
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing plasmon generator
- Patent number 9,640,202
- Issue date May 2, 2017
- Headway Technologies, Inc.
- Shigeki Tanemura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular magnetic recording with a trailing...
- Patent number 9,502,053
- Issue date Nov 22, 2016
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including a main pole and a write shield to provide i...
- Patent number 9,489,969
- Issue date Nov 8, 2016
- Headway Technologies, Inc.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head having inclined main mag...
- Patent number 9,478,241
- Issue date Oct 25, 2016
- Headway Technologies, Inc.
- Shigeki Tanemura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular magnetic recording including a main...
- Patent number 9,336,798
- Issue date May 10, 2016
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head having a heat sink
- Patent number 9,330,702
- Issue date May 3, 2016
- Headway Technologies, Inc.
- Hironori Araki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular magnetic recording including a coil...
- Patent number 9,230,568
- Issue date Jan 5, 2016
- Headway Technologies, Inc.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head including a heat sink
- Patent number 9,218,835
- Issue date Dec 22, 2015
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head including a return path...
- Patent number 9,218,827
- Issue date Dec 22, 2015
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular magnetic recording including a main...
- Patent number 9,082,422
- Issue date Jul 14, 2015
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head including a first and second insulating film between...
- Patent number 9,076,465
- Issue date Jul 7, 2015
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head for perpendicular magnetic recording including a main...
- Patent number 9,030,776
- Issue date May 12, 2015
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Gold-Copper Alloy In A Heat-Assisted Magnetic Recording Writer
- Publication number 20240161772
- Publication date May 16, 2024
- HEADWAY TECHNOLOGIES, INC.
- Yukinori Ikegawa
- G11 - INFORMATION STORAGE
Information Patent Application
Iridium Film With A Thin Iridium Template Layer For A Heat-Assisted...
- Publication number 20240112693
- Publication date Apr 4, 2024
- HEADWAY TECHNOLOGIES, INC.
- Koji Shimazawa
- B82 - NANO-TECHNOLOGY
Information Patent Application
WAVEGUIDE AND MANUFACTURING METHOD THEREOF
- Publication number 20230003940
- Publication date Jan 5, 2023
- HEADWAY TECHNOLOGIES, INC.
- Yukinori IKEGAWA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING INCLUDING TWO SI...
- Publication number 20190228795
- Publication date Jul 25, 2019
- HEADWAY TECHNOLOGIES, INC.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING WITH A COIL INCL...
- Publication number 20170270953
- Publication date Sep 21, 2017
- HEADWAY TECHNOLOGIES, INC.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD FOR PERPENDICULAR MAGENTIC RECORDING CAPABLE OF PREVE...
- Publication number 20170140780
- Publication date May 18, 2017
- HEADWAY TECHNOLOGIES, INC.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING WITH A COIL INCL...
- Publication number 20170125042
- Publication date May 4, 2017
- HEADWAY TECHNOLOGIES, INC.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING INCLUDING A COIL...
- Publication number 20160275970
- Publication date Sep 22, 2016
- HEADWAY TECHNOLOGIES, INC.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF MANUFACTURING A THIN-FILM MAGNETIC HEAD INCLUDING A COIL...
- Publication number 20160115612
- Publication date Apr 28, 2016
- HEADWAY TECHNOLOGIES, INC.
- Yukinori IKEGAWA
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING INCLUDING A MAIN...
- Publication number 20150170679
- Publication date Jun 18, 2015
- SAE MAGNETICS (H. K) LTD.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD INCLUDING A FIRST AND SECOND INSULATING FILM BETWEEN...
- Publication number 20150170682
- Publication date Jun 18, 2015
- SAE MAGNETICS (H.K.) LTD.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HAVING A HEAT SINK
- Publication number 20150092525
- Publication date Apr 2, 2015
- HEADWAY TECHNOLOGIES, INC.
- Hironori ARAKI
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF MANUFACTURING PLASMON GENERATOR
- Publication number 20140298644
- Publication date Oct 9, 2014
- Shigeki TANEMURA
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING HAVING A MAIN PO...
- Publication number 20130308227
- Publication date Nov 21, 2013
- HEADWAY TECHNOLOGIES, INC.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
PLASMON GENERATOR INCLUDING TWO PORTIONS MADE OF DIFFERENT METALS
- Publication number 20130107681
- Publication date May 2, 2013
- HEADWAY TECHNOLOGIES, INC.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
TAPER-ETCHING METHOD AND METHOD OF MANUFACTURING NEAR-FIELD LIGHT G...
- Publication number 20120315716
- Publication date Dec 13, 2012
- HEADWAY TECHNOLOGIES, INC.
- Hironori ARAKI
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF FORMING MAIN POLE OF THERMALLY-ASSISTED MAGNETIC RECORDIN...
- Publication number 20120292287
- Publication date Nov 22, 2012
- HEADWAY TECHNOLOGIES, INC.
- Hironori ARAKI
- G11 - INFORMATION STORAGE

Yukinori IKEGAWA

Person

Patents Grantslast 30 patents

Iridium film with a thin iridium template layer for a heat-assisted...

Manufacturing method for magnetoresistive element

Waveguide and manufacturing method thereof

Magnetic head including main pole having top surface including firs...

Manufacturing method for magnetic head for perpendicular magnetic r...

Thermally-assisted magnetic recording head having plasmon generator...

Near-field light generator and thermally-assisted magnetic recordin...

Magnetic head including a return path section

Waveguide including first and second layers and manufacturing metho...

Magnetic head for perpendicular magnetic recording including two si...

Method of manufacturing a plasmon generator

Magnetic head for perpendicular magnetic recording with a coil incl...

Magnetic head for perpendicular magnetic recording including a coil...

Method of manufacturing a thin-film magnetic head including a coil...

Plasmon generator including a heat sink layer interposed between tw...

Magnetic head for perpendicular magnetic recording including a coil...

Magnetic head for perpendicular magnetic recording with a coil incl...

Magnetic head for perpendicular magnetic recording capable of preve...

Method of manufacturing plasmon generator

Magnetic head for perpendicular magnetic recording with a trailing...

Magnetic head including a main pole and a write shield to provide i...

Thermally-assisted magnetic recording head having inclined main mag...

Magnetic head for perpendicular magnetic recording including a main...

Thermally-assisted magnetic recording head having a heat sink

Magnetic head for perpendicular magnetic recording including a coil...

Thermally-assisted magnetic recording head including a heat sink

Thermally-assisted magnetic recording head including a return path...

Magnetic head for perpendicular magnetic recording including a main...

Magnetic head including a first and second insulating film between...

Magnetic head for perpendicular magnetic recording including a main...

Patents Applicationslast 30 patents

Gold-Copper Alloy In A Heat-Assisted Magnetic Recording Writer

Iridium Film With A Thin Iridium Template Layer For A Heat-Assisted...

WAVEGUIDE AND MANUFACTURING METHOD THEREOF

MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING INCLUDING TWO SI...

MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING WITH A COIL INCL...

MAGNETIC HEAD FOR PERPENDICULAR MAGENTIC RECORDING CAPABLE OF PREVE...

MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING WITH A COIL INCL...

MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING INCLUDING A COIL...

METHOD OF MANUFACTURING A THIN-FILM MAGNETIC HEAD INCLUDING A COIL...

MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING INCLUDING A MAIN...

MAGNETIC HEAD INCLUDING A FIRST AND SECOND INSULATING FILM BETWEEN...

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HAVING A HEAT SINK

METHOD OF MANUFACTURING PLASMON GENERATOR

MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING HAVING A MAIN PO...

PLASMON GENERATOR INCLUDING TWO PORTIONS MADE OF DIFFERENT METALS

TAPER-ETCHING METHOD AND METHOD OF MANUFACTURING NEAR-FIELD LIGHT G...

METHOD OF FORMING MAIN POLE OF THERMALLY-ASSISTED MAGNETIC RECORDIN...