Fujii; Ryuji

Patent Applications and Registrations

Patent applications and USPTO patent grants for Fujii; Ryuji.The latest application filed is for "semiconductor laser and laser radar device having the semiconductor laser".

Company Profile

5.82.54

Fujii; Ryuji - Hong Kong HK
Fujii; Ryuji - Shatin HK
Fujii; Ryuji - Kwai Chung HK
Fujii; Ryuji - Kwai Fung Crescent HK
Fujii; Ryuji - HongKong HK
Fujii, Ryuji - New Territories HK

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Semiconductor Laser and Laser Radar Device Having the Semiconductor Laser App 20220311217 - Takayama; Seiichi ; et al.	2022-09-29
Thermally-assisted magnetic recording head having active layer with quantum dot structure Grant 11,127,424 - Gao , et al. September 21, 2	2021-09-21
Disk drive thermally assisted magnetic recording head having a slider and a tilted light incident surface Grant 10,811,042 - Fujii , et al. October 20, 2	2020-10-20
Thermally Assisted Magnetic Recording Head And Thermally Assisted Magnetic Recording Disk Drive App 20200143827 - Fujii; Ryuji ; et al.	2020-05-07
Row bar and wafer for forming magnetic heads Grant 10,490,212 - Fujii , et al. Nov	2019-11-26
Method and system of testing slider body of thermally-assisted magnetic head Grant 10,311,903 - Takayama , et al.	2019-06-04
Method And System Of Testing Slider Body Of Thermally-assisted Magnetic Head App 20190005980 - TAKAYAMA; Seiichi ; et al.	2019-01-03
Coupling Structure Of Optical Components And Coupling Method Of The Same App 20180246278 - TAKAYAMA; Seiichi ; et al.	2018-08-30
Coupling structure of optical components and coupling method of the same Grant 10,061,084 - Takayama , et al. August 28, 2	2018-08-28
Row Bar And Wafer For Forming Magnetic Heads App 20180025744 - FUJII; Ryuji ; et al.	2018-01-25
Manufacturing method for a head slider coated with DLC Grant 9,840,767 - Huang , et al. December 12, 2	2017-12-12
Manufacturing Method For A Head Slider Coated With Dlc App 20170283939 - HUANG; Jian Hui ; et al.	2017-10-05
Thermal assisted magnetic head provided with light detector that detects reflected light Grant 9,666,218 - Honda , et al. May 30, 2	2017-05-30
Light source unit, heat-assisted magnetic recording head using the same, and light source for light source unit Grant 9,489,972 - Honda , et al. November 8, 2	2016-11-08
Thermally-assisted Magnetic Recording Head Having Semiconductor Surface Emitting Laser, And Head Gimbal Assembly And Disk Drive Unit With The Same App 20160284370 - TAKAYAMA; Seiichi ; et al.	2016-09-29
Method of testing thermally-assisted magnetic head Grant 9,437,226 - Koba , et al. September 6, 2	2016-09-06
Thermally assisted magnetic recording head slider, method of manufacturing the same, head gimbal assembly, and hard disk drive Grant 9,437,227 - Honda , et al. September 6, 2	2016-09-06
Light Source Unit, Heat-assisted Magnetic Recording Head Using The Same, And Light Source For Light Source Unit App 20160232928 - HONDA; Takashi ; et al.	2016-08-11
Thermally-assisted magnetic recording head including a plasmon generator Grant 9,275,658 - Sasaki , et al. March 1, 2	2016-03-01
Near-field light generator including a waveguide and a plasmon generator Grant 9,236,082 - Sasaki , et al. January 12, 2	2016-01-12
Near-field light generator including a waveguide and a plasmon generator Grant 9,208,806 - Sasaki , et al. December 8, 2	2015-12-08
Thermal Assisted Magnetic Recording Head With Protrusion On Leading Side Of Plasmon Generator App 20150332717 - HARA; Kenta ; et al.	2015-11-19
Thermal assisted magnetic recording head with protrusion on leading side of plasmon generator Grant 9,190,084 - Hara , et al. November 17, 2	2015-11-17
Method of manufacturing thermally-assisted magnetic head and alignment apparatus thereof Grant 9,163,939 - Takayama , et al. October 20, 2	2015-10-20
Thermally-assisted Magnetic Recording Head Including A Plasmon Generator App 20150262593 - SASAKI; Yoshitaka ; et al.	2015-09-17
Near-field Light Generator Including A Waveguide And A Plasmon Generator App 20150255096 - SASAKI; Yoshitaka ; et al.	2015-09-10
Method Of Manufacturing Thermally-assisted Magnetic Head And Alignment Apparatus Thereof App 20150247722 - TAKAYAMA; Seiichi ; et al.	2015-09-03
Near-field Light Generator Including A Waveguide And A Plasmon Generator App 20150124575 - SASAKI; Yoshitaka ; et al.	2015-05-07
Thermally-assisted magnetic recording head having a plasmon generator Grant 9,013,964 - Sasaki , et al. April 21, 2	2015-04-21
Thermally Assisted Magnetic Head, Method Of Manufacturing The Same, Head Gimbal Assembly, And Hard Disk Drive App 20150085629 - SASAKI; Yoshitaka ; et al.	2015-03-26
Thermally assisted magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive Grant 8,988,975 - Sasaki , et al. March 24, 2	2015-03-24
Thermally-assisted Magnetic Recording Head Having A Plasmon Generator App 20150071044 - SASAKI; Yoshitaka ; et al.	2015-03-12
Manufacturing method for layered chip packages Grant 8,912,042 - Sasaki , et al. December 16, 2	2014-12-16
Head stack assembly with light shielding structure, and disk drive unit with the same Grant 8,902,546 - Takayama , et al. December 2, 2	2014-12-02
Multilayer plasmon generator Grant 8,867,170 - Sasaki , et al. October 21, 2	2014-10-21
Thermally assisted magnetic write head, and method of manufacturing the same Grant 8,861,318 - Lee , et al. October 14, 2	2014-10-14
Multilayer plasmon generator Grant 8,861,138 - Sasaki , et al. October 14, 2	2014-10-14
Plasmon generator including two portions made of different metals Grant 8,848,494 - Sasaki , et al. September 30, 2	2014-09-30
Multilayer Plasmon Generator App 20140269237 - SASAKI; Yoshitaka ; et al.	2014-09-18
Near-field Light Generator And Thermally-assisted Magnetic Recording Head App 20140269232 - SASAKI; Yoshitaka ; et al.	2014-09-18
Near-field light generator and thermally-assisted magnetic recording head Grant 8,830,799 - Sasaki , et al. September 9, 2	2014-09-09
Plasmon Generator Including Two Portions Made Of Different Metals App 20140247706 - SASAKI; Yoshitaka ; et al.	2014-09-04
Magnetic Head Comprising Recording Part, Reading Part, Heater For Expansion Of The Recording Part, And Heater For Expansion Of The Reading Part App 20140241138 - HIRATA; Kei ; et al.	2014-08-28
Method of manufacturing thermally-assisted magnetic head Grant 8,811,130 - Takayama , et al. August 19, 2	2014-08-19
Magnetic head comprising recording part, reading part, heater for expansion of the recording part, and heater for expansion of the reading part Grant 8,811,127 - Hirata , et al. August 19, 2	2014-08-19
Write element, thermally assisted magnetic head slider, head gimbal assembly, hard disk drive with the same, and manufacturing method thereof Grant 8,801,945 - Nishijima , et al. August 12, 2	2014-08-12
Thermally-assisted magnetic recording head having a plasmon generator Grant 8,760,809 - Sasaki , et al. June 24, 2	2014-06-24
Light source chip and a thermally assisted head with the same, and manufacturing methods thereof Grant 8,743,665 - Fujii , et al. June 3, 2	2014-06-03
Write Element, Thermally Assisted Magnetic Head Slider, Head Gimbal Assembly, Hard Disk Drive With The Same, And Manufacturing Method Thereof App 20140131309 - NISHIJIMA; Natsuo ; et al.	2014-05-15
Plasmon generator includes three metal layers for thermally-assisted magnetic recording Grant 8,711,663 - Sasaki , et al. April 29, 2	2014-04-29
Manufacturing Method For Layered Chip Packages App 20140080259 - Sasaki; Yoshitaka ; et al.	2014-03-20
Thermally assisted magnetic head slider having plasmon unit formed with a recess Grant 8,638,645 - Nishijima , et al. January 28, 2	2014-01-28
Thermally-assisted magnetic recording head having expanded near-field light generating layer and method of manufacture Grant 8,619,518 - Sasaki , et al. December 31, 2	2013-12-31
Row bar with smart sensor for forming sliders and method of manufacturing slider Grant 8,614,863 - Fujii , et al. December 24, 2	2013-12-24
Thermally assisted magnetic head slider, head gimbal assembly, and hard disk drive with the same, and manufacturing method thereof Grant 8,588,040 - Fujita , et al. November 19, 2	2013-11-19
Light Source Chip And A Thermally Assisted Head With The Same, And Manufacturing Methods Thereof App 20130258823 - FUJII; Ryuji ; et al.	2013-10-03
Light source chip and a thermally assisted head with the same, and manufacturing methods thereof Grant 8,537,643 - Fujii , et al. September 17, 2	2013-09-17
Near-field light generator and thermally-assisted magnetic recording head Grant 8,509,038 - Sasaki , et al. August 13, 2	2013-08-13
Method of burn-in testing for thermally assisted head Grant 8,509,036 - Shimazawa , et al. August 13, 2	2013-08-13
System and method for cooling a semiconductor light source bar during burn-in testing Grant 8,503,493 - Fujii , et al. August 6, 2	2013-08-06
Method of manufacturing magnetic head slider Grant 8,495,812 - Fujii , et al. July 30, 2	2013-07-30
Thermally-assisted magnetic recording head having a waveguide and a return path section Grant 8,498,183 - Sasaki , et al. July 30, 2	2013-07-30
Thermally-assisted magnetic recording head including a shield Grant 8,493,821 - Sasaki , et al. July 23, 2	2013-07-23
Thermally-assisted magnetic recording head having dual heat sink layers Grant 8,456,968 - Sasaki , et al. June 4, 2	2013-06-04
Light Source Chip And A Thermally Assisted Head With The Same, And Manufacturing Methods Thereof App 20130136885 - FUJII; Ryuji ; et al.	2013-05-30
Method for performing burn-in test Grant 8,384,405 - Shimazawa , et al. February 26, 2	2013-02-26
Method For Performing Burn-in Test App 20120269047 - Shimazawa; Koji ; et al.	2012-10-25
Light source unit for thermally-assisted magnetic recording including dual electrode layers connected to a unit electrode Grant 8,254,214 - Shimazawa , et al. August 28, 2	2012-08-28
Method for manufacturing thermally-assisted magnetic recording head comprising light source unit and slider Grant 8,248,895 - Shimazawa , et al. August 21, 2	2012-08-21
Method for manufacturing thermally-assisted magnetic recording head comprising light source unit and slider Grant 8,248,897 - Shimazawa , et al. August 21, 2	2012-08-21
Method Of Burn-in Testing For Thermally Assisted Head App 20120147717 - Shimazawa; Koji ; et al.	2012-06-14
Magnetic head slider manufacturing method Grant 8,166,630 - Fujii , et al. May 1, 2	2012-05-01
Light source unit for thermally-assisted magnetic recording capable of monitoring of light output Grant 8,149,653 - Shimazawa , et al. April 3, 2	2012-04-03
Row bar with smart sensor for forming sliders and method of manufacturing slider App 20110296673 - Fujii; Ryuji ; et al.	2011-12-08
Method and apparatus for inspecting slider using moving stage Grant 8,040,375 - Fujii October 18, 2	2011-10-18
Method For Manufacturing Thermally-assisted Magnetic Recording Head Comprising Light Source Unit And Slider App 20110228649 - SHIMAZAWA; Koji ; et al.	2011-09-22
Light Source Unit For Thermally-assisted Magnetic Recording Capable Of Monitoring Of Light Output App 20110228653 - SHIMAZAWA; Koji ; et al.	2011-09-22
Method For Manufacturing Thermally-assisted Magnetic Recording Head Comprising Light Source Unit And Slider App 20110228650 - SHIMAZAWA; Koji ; et al.	2011-09-22
Light Source Unit For Thermally-assisted Magnetic Recording App 20110128827 - SHIMAZAWA; Koji ; et al.	2011-06-02
Probe assembly for lapping a bar using a patterned probe Grant 7,768,281 - Fujii , et al. August 3, 2	2010-08-03
Slider having protective films of differing hydrogen content Grant 7,746,597 - Huang , et al. June 29, 2	2010-06-29
Apparatus for manufacturing magnetic head slider Grant 7,739,786 - Fujii June 22, 2	2010-06-22
Method of manufacturing magnetic head, and magnetic head substructure Grant 7,716,814 - Sasaki , et al. May 18, 2	2010-05-18
Method of manufacturing magnetic head slider App 20090154020 - Fujii; Ryuji ; et al.	2009-06-18
Magnetic head slider manufacturing method App 20090116149 - Fujii; Ryuji ; et al.	2009-05-07
Magnetic head and method of manufacturing the same App 20090081481 - Fujii; Ryuji	2009-03-26
Slider separating method Grant 7,464,456 - Fujii , et al. December 16, 2	2008-12-16
Grinding sheet and grinding method Grant 7,435,163 - Natsui , et al. October 14, 2	2008-10-14
Probe assembly for lapping bar using patterned probe App 20080223155 - Fujii; Ryuji ; et al.	2008-09-18
Method of manufacturing magnetic head, and magnetic head substructure App 20080184551 - Sasaki; Yoshitaka ; et al.	2008-08-07
Apparatus for lapping thin film magnetic heads Grant 7,326,102 - Fujii , et al. February 5, 2	2008-02-05
Method and apparatus for inspecting slider using moving stage App 20070296812 - Fujii; Ryuji	2007-12-27
Manufacturing method of flying magnetic head slider Grant 7,281,317 - Ohno , et al. October 16, 2	2007-10-16
Grinding sheet and grinding method App 20070232200 - Natsui; Hideaki ; et al.	2007-10-04
Slider and method of producing the same App 20070115589 - Huang; Jian Hui ; et al.	2007-05-24
System and method for edge blending hard drive head sliders Grant 7,189,150 - Zhan , et al. March 13, 2	2007-03-13
Apparatus And Method For Manufacturing Magnetic Head Slider And Polishing Device App 20060292968 - FUJII; Ryuji	2006-12-28
Fixture for slider lapping, lapping device and lapping method Grant 7,153,198 - Fujii , et al. December 26, 2	2006-12-26
Fixture for slider lapping, lapping device and lapping method App 20060160473 - Fujii; Ryuji ; et al.	2006-07-20
Apparatus and method for lapping thin film magnetic heads App 20050095956 - Fujii, Ryuji ; et al.	2005-05-05
Flying head slider and manufacturing method of the head slider App 20050007699 - Ohno, Morihiro ; et al.	2005-01-13
Manufacturing method of flying magnetic head slider App 20050005426 - Ohno, Morihiro ; et al.	2005-01-13
System and method for edge blending hard drive head sliders App 20040242131 - Zhan, Zhu Jian ; et al.	2004-12-02
Lapping method of magnetic head slider and lapping method of bar Grant 6,679,760 - Fukuroi , et al. January 20, 2	2004-01-20
Lapping method of magnetic head slider and lapping method of bar App 20020119734 - Fukuroi, Osamu ; et al.	2002-08-29