Ryuji Fujii

Person

Hong Kong, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Magnetic head, head gimbal assembly, hard disk drive, and method fo...
- Patent number 12,106,786
- Issue date Oct 1, 2024
- Sae Magnetics (H.K.) Ltd.
- Ryuji Fujii
- G11 - INFORMATION STORAGE
Information Patent Grant
Laser diode, thermally assisted magnetic head, head gimbal assembly...
- Patent number 11,887,638
- Issue date Jan 30, 2024
- Sae Magnetics (H.K.) Ltd.
- Ryo Hosoi
- G11 - INFORMATION STORAGE
Information Patent Grant
Row bar and wafer for forming magnetic heads
- Patent number 10,490,212
- Issue date Nov 26, 2019
- Sae Magnetics (H.K.) Ltd.
- Ryuji Fujii
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system of testing slider body of thermally-assisted magn...
- Patent number 10,311,903
- Issue date Jun 4, 2019
- Sae Magnetics (H.K.) Ltd.
- Seiichi Takayama
- G01 - MEASURING TESTING
Information Patent Grant
Coupling structure of optical components and coupling method of the...
- Patent number 10,061,084
- Issue date Aug 28, 2018
- Sae Magnetics (H.K.) Ltd.
- Seiichi Takayama
- G02 - OPTICS
Information Patent Grant
Manufacturing method for a head slider coated with DLC
- Patent number 9,840,767
- Issue date Dec 12, 2017
- Sae Magnetics (H.K.) Ltd.
- Jian Hui Huang
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Thermal assisted magnetic head provided with light detector that de...
- Patent number 9,666,218
- Issue date May 30, 2017
- Sae Magnetics (H.K.) Ltd.
- Takashi Honda
- G11 - INFORMATION STORAGE
Information Patent Grant
Light source unit, heat-assisted magnetic recording head using the...
- Patent number 9,489,972
- Issue date Nov 8, 2016
- Sae Magnetics (H.K.) Ltd.
- Takashi Honda
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally assisted magnetic recording head slider, method of manufa...
- Patent number 9,437,227
- Issue date Sep 6, 2016
- SAE Magnetic (H.K.) Ltd.
- Takashi Honda
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of testing thermally-assisted magnetic head
- Patent number 9,437,226
- Issue date Sep 6, 2016
- Sae Magnetics (H.K.) Ltd.
- Tadatoshi Koba
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head including a plasmon gene...
- Patent number 9,275,658
- Issue date Mar 1, 2016
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Near-field light generator including a waveguide and a plasmon gene...
- Patent number 9,236,082
- Issue date Jan 12, 2016
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Near-field light generator including a waveguide and a plasmon gene...
- Patent number 9,208,806
- Issue date Dec 8, 2015
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- 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
Method of manufacturing thermally-assisted magnetic head and alignm...
- Patent number 9,163,939
- Issue date Oct 20, 2015
- Sae Magnetics (H.K.) Ltd.
- Seiichi Takayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head having a plasmon generator
- Patent number 9,013,964
- Issue date Apr 21, 2015
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally assisted magnetic head, method of manufacturing the same,...
- Patent number 8,988,975
- Issue date Mar 24, 2015
- Headyway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Manufacturing method for layered chip packages
- Patent number 8,912,042
- Issue date Dec 16, 2014
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Head stack assembly with light shielding structure, and disk drive...
- Patent number 8,902,546
- Issue date Dec 2, 2014
- Sae Magnetics (H.K.) Ltd.
- Seiichi Takayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Multilayer plasmon generator
- Patent number 8,867,170
- Issue date Oct 21, 2014
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Multilayer plasmon generator
- Patent number 8,861,138
- Issue date Oct 14, 2014
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Thermally assisted magnetic write head, and method of manufacturing...
- Patent number 8,861,318
- Issue date Oct 14, 2014
- Sae Magnetics (H.K.) Ltd.
- Tai Boon Lee
- G11 - INFORMATION STORAGE
Information Patent Grant
Plasmon generator including two portions made of different metals
- Patent number 8,848,494
- Issue date Sep 30, 2014
- Headway Technologies Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Near-field light generator and thermally-assisted magnetic recordin...
- Patent number 8,830,799
- Issue date Sep 9, 2014
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head comprising recording part, reading part, heater for e...
- Patent number 8,811,127
- Issue date Aug 19, 2014
- TDK Corporation
- Kei Hirata
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of manufacturing thermally-assisted magnetic head
- Patent number 8,811,130
- Issue date Aug 19, 2014
- Sae Magnetics (H.K.) Ltd.
- Seiichi Takayama
- G11 - INFORMATION STORAGE
Information Patent Grant
Write element, thermally assisted magnetic head slider, head gimbal...
- Patent number 8,801,945
- Issue date Aug 12, 2014
- Sae Magnetics (H.K.) Ltd.
- Natsuo Nishijima
- G11 - INFORMATION STORAGE
Information Patent Grant
Thermally-assisted magnetic recording head having a plasmon generator
- Patent number 8,760,809
- Issue date Jun 24, 2014
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE
Information Patent Grant
Light source chip and a thermally assisted head with the same, and...
- Patent number 8,743,665
- Issue date Jun 3, 2014
- Sae Magnetics (H.K.) Ltd.
- Ryuji Fujii
- G11 - INFORMATION STORAGE
Information Patent Grant
Plasmon generator includes three metal layers for thermally-assiste...
- Patent number 8,711,663
- Issue date Apr 29, 2014
- Headway Technologies, Inc.
- Yoshitaka Sasaki
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY, HARD DISK DRIVE, AND METHOD FO...
- Publication number 20240038261
- Publication date Feb 1, 2024
- SAE MAGNETICS (H. K) LTD.
- Ryuji FUJII
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD AND SYSTEM OF TESTING SLIDER BODY OF THERMALLY-ASSISTED MAGN...
- Publication number 20190005980
- Publication date Jan 3, 2019
- SAE MAGNETICS (H. K) LTD.
- Seiichi TAKAYAMA
- G11 - INFORMATION STORAGE
Information Patent Application
COUPLING STRUCTURE OF OPTICAL COMPONENTS AND COUPLING METHOD OF THE...
- Publication number 20180246278
- Publication date Aug 30, 2018
- SAE MAGNETICS (H. K) LTD.
- Seiichi TAKAYAMA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
ROW BAR AND WAFER FOR FORMING MAGNETIC HEADS
- Publication number 20180025744
- Publication date Jan 25, 2018
- SAE MAGNETICS (H. K) LTD.
- Ryuji FUJII
- G11 - INFORMATION STORAGE
Information Patent Application
MANUFACTURING METHOD FOR A HEAD SLIDER COATED WITH DLC
- Publication number 20170283939
- Publication date Oct 5, 2017
- SAE MAGNETICS (H. K) LTD.
- Jian Hui HUANG
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HAVING SEMICONDUCTOR SUR...
- Publication number 20160284370
- Publication date Sep 29, 2016
- SAE MAGNETICS (H. K) LTD.
- Seiichi TAKAYAMA
- G11 - INFORMATION STORAGE
Information Patent Application
LIGHT SOURCE UNIT, HEAT-ASSISTED MAGNETIC RECORDING HEAD USING THE...
- Publication number 20160232928
- Publication date Aug 11, 2016
- SAE MAGNETICS (H. K) LTD.
- Takashi HONDA
- G01 - MEASURING TESTING
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
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING A PLASMON GENE...
- Publication number 20150262593
- Publication date Sep 17, 2015
- SAE MAGNETICS (H. K) LTD.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
NEAR-FIELD LIGHT GENERATOR INCLUDING A WAVEGUIDE AND A PLASMON GENE...
- Publication number 20150255096
- Publication date Sep 10, 2015
- SAE MAGNETICS (H. K) LTD.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF MANUFACTURING THERMALLY-ASSISTED MAGNETIC HEAD AND ALIGNM...
- Publication number 20150247722
- Publication date Sep 3, 2015
- SAE MAGNETICS (H. K) LTD.
- Seiichi TAKAYAMA
- G01 - MEASURING TESTING
Information Patent Application
NEAR-FIELD LIGHT GENERATOR INCLUDING A WAVEGUIDE AND A PLASMON GENE...
- Publication number 20150124575
- Publication date May 7, 2015
- SAE MAGNETICS (H. K) LTD.
- Yoshitaka SASAKI
- G02 - OPTICS
Information Patent Application
THERMALLY ASSISTED MAGNETIC HEAD, METHOD OF MANUFACTURING THE SAME,...
- Publication number 20150085629
- Publication date Mar 26, 2015
- SAE MAGNETICS (H. K) LTD.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HAVING A PLASMON GENERATOR
- Publication number 20150071044
- Publication date Mar 12, 2015
- HEADWAY TECHNOLOGIES, INC.
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
NEAR-FIELD LIGHT GENERATOR AND THERMALLY-ASSISTED MAGNETIC RECORDIN...
- Publication number 20140269232
- Publication date Sep 18, 2014
- Yoshitaka SASAKI
- G02 - OPTICS
Information Patent Application
MULTILAYER PLASMON GENERATOR
- Publication number 20140269237
- Publication date Sep 18, 2014
- SAE Magnetics (H.K.) Ltd.
- Yoshitaka SASAKI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
PLASMON GENERATOR INCLUDING TWO PORTIONS MADE OF DIFFERENT METALS
- Publication number 20140247706
- Publication date Sep 4, 2014
- Yoshitaka SASAKI
- G11 - INFORMATION STORAGE
Information Patent Application
MAGNETIC HEAD COMPRISING RECORDING PART, READING PART, HEATER FOR E...
- Publication number 20140241138
- Publication date Aug 28, 2014
- SAE MAGNETICS (H. K) LTD.
- Kei HIRATA
- G11 - INFORMATION STORAGE
Information Patent Application
WRITE ELEMENT, THERMALLY ASSISTED MAGNETIC HEAD SLIDER, HEAD GIMBAL...
- Publication number 20140131309
- Publication date May 15, 2014
- SAE MAGNETICS (H. K) LTD.
- Natsuo NISHIJIMA
- G11 - INFORMATION STORAGE
Information Patent Application
MANUFACTURING METHOD FOR LAYERED CHIP PACKAGES
- Publication number 20140080259
- Publication date Mar 20, 2014
- Yoshitaka Sasaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LIGHT SOURCE CHIP AND A THERMALLY ASSISTED HEAD WITH THE SAME, AND...
- Publication number 20130258823
- Publication date Oct 3, 2013
- SAE MAGNETICS (H. K) LTD.
- Ryuji FUJII
- G11 - INFORMATION STORAGE
Information Patent Application
LIGHT SOURCE CHIP AND A THERMALLY ASSISTED HEAD WITH THE SAME, AND...
- Publication number 20130136885
- Publication date May 30, 2013
- SAE MAGNETICS (H. K) LTD.
- Ryuji FUJII
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD OF BURN-IN TESTING FOR THERMALLY ASSISTED HEAD
- Publication number 20120147717
- Publication date Jun 14, 2012
- ROHM CO., LTD.
- Koji Shimazawa
- G11 - INFORMATION STORAGE
Information Patent Application
Row bar with smart sensor for forming sliders and method of manufac...
- Publication number 20110296673
- Publication date Dec 8, 2011
- SAE MAGNETICS (H. K) LTD.
- Ryuji Fujii
- G11 - INFORMATION STORAGE
Information Patent Application
LIGHT SOURCE UNIT FOR THERMALLY-ASSISTED MAGNETIC RECORDING CAPABLE...
- Publication number 20110228653
- Publication date Sep 22, 2011
- TDK Corporation
- Koji SHIMAZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD FOR MANUFACTURING THERMALLY-ASSISTED MAGNETIC RECORDING HEAD...
- Publication number 20110228649
- Publication date Sep 22, 2011
- TDK Corporation
- Koji SHIMAZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
METHOD FOR MANUFACTURING THERMALLY-ASSISTED MAGNETIC RECORDING HEAD...
- Publication number 20110228650
- Publication date Sep 22, 2011
- TDK Corporation
- Koji SHIMAZAWA
- G11 - INFORMATION STORAGE
Information Patent Application
Method of manufacturing magnetic head slider
- Publication number 20090154020
- Publication date Jun 18, 2009
- SAE MAGNETICS (H. K) LTD.
- Ryuji Fujii
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head slider manufacturing method
- Publication number 20090116149
- Publication date May 7, 2009
- SAE MAGNETICS (H. K) LTD.
- Ryuji Fujii
- G11 - INFORMATION STORAGE
Information Patent Application
Magnetic head and method of manufacturing the same
- Publication number 20090081481
- Publication date Mar 26, 2009
- SAE MAGNETICS (H. K) LTD.
- Ryuji Fujii
- G11 - INFORMATION STORAGE

Ryuji Fujii

Person

Patents Grantslast 30 patents

Magnetic head, head gimbal assembly, hard disk drive, and method fo...

Laser diode, thermally assisted magnetic head, head gimbal assembly...

Row bar and wafer for forming magnetic heads

Method and system of testing slider body of thermally-assisted magn...

Coupling structure of optical components and coupling method of the...

Manufacturing method for a head slider coated with DLC

Thermal assisted magnetic head provided with light detector that de...

Light source unit, heat-assisted magnetic recording head using the...

Thermally assisted magnetic recording head slider, method of manufa...

Method of testing thermally-assisted magnetic head

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

Near-field light generator including a waveguide and a plasmon gene...

Near-field light generator including a waveguide and a plasmon gene...

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

Method of manufacturing thermally-assisted magnetic head and alignm...

Thermally-assisted magnetic recording head having a plasmon generator

Thermally assisted magnetic head, method of manufacturing the same,...

Manufacturing method for layered chip packages

Head stack assembly with light shielding structure, and disk drive...

Multilayer plasmon generator

Multilayer plasmon generator

Thermally assisted magnetic write head, and method of manufacturing...

Plasmon generator including two portions made of different metals

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

Magnetic head comprising recording part, reading part, heater for e...

Method of manufacturing thermally-assisted magnetic head

Write element, thermally assisted magnetic head slider, head gimbal...

Thermally-assisted magnetic recording head having a plasmon generator

Light source chip and a thermally assisted head with the same, and...

Plasmon generator includes three metal layers for thermally-assiste...

Patents Applicationslast 30 patents

MAGNETIC HEAD, HEAD GIMBAL ASSEMBLY, HARD DISK DRIVE, AND METHOD FO...

METHOD AND SYSTEM OF TESTING SLIDER BODY OF THERMALLY-ASSISTED MAGN...

COUPLING STRUCTURE OF OPTICAL COMPONENTS AND COUPLING METHOD OF THE...

ROW BAR AND WAFER FOR FORMING MAGNETIC HEADS

MANUFACTURING METHOD FOR A HEAD SLIDER COATED WITH DLC

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HAVING SEMICONDUCTOR SUR...

LIGHT SOURCE UNIT, HEAT-ASSISTED MAGNETIC RECORDING HEAD USING THE...

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

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD INCLUDING A PLASMON GENE...

NEAR-FIELD LIGHT GENERATOR INCLUDING A WAVEGUIDE AND A PLASMON GENE...

METHOD OF MANUFACTURING THERMALLY-ASSISTED MAGNETIC HEAD AND ALIGNM...

NEAR-FIELD LIGHT GENERATOR INCLUDING A WAVEGUIDE AND A PLASMON GENE...

THERMALLY ASSISTED MAGNETIC HEAD, METHOD OF MANUFACTURING THE SAME,...

THERMALLY-ASSISTED MAGNETIC RECORDING HEAD HAVING A PLASMON GENERATOR

NEAR-FIELD LIGHT GENERATOR AND THERMALLY-ASSISTED MAGNETIC RECORDIN...

MULTILAYER PLASMON GENERATOR

PLASMON GENERATOR INCLUDING TWO PORTIONS MADE OF DIFFERENT METALS

MAGNETIC HEAD COMPRISING RECORDING PART, READING PART, HEATER FOR E...

WRITE ELEMENT, THERMALLY ASSISTED MAGNETIC HEAD SLIDER, HEAD GIMBAL...

MANUFACTURING METHOD FOR LAYERED CHIP PACKAGES

LIGHT SOURCE CHIP AND A THERMALLY ASSISTED HEAD WITH THE SAME, AND...

LIGHT SOURCE CHIP AND A THERMALLY ASSISTED HEAD WITH THE SAME, AND...

METHOD OF BURN-IN TESTING FOR THERMALLY ASSISTED HEAD

Row bar with smart sensor for forming sliders and method of manufac...

LIGHT SOURCE UNIT FOR THERMALLY-ASSISTED MAGNETIC RECORDING CAPABLE...

METHOD FOR MANUFACTURING THERMALLY-ASSISTED MAGNETIC RECORDING HEAD...

METHOD FOR MANUFACTURING THERMALLY-ASSISTED MAGNETIC RECORDING HEAD...

Method of manufacturing magnetic head slider

Magnetic head slider manufacturing method

Magnetic head and method of manufacturing the same