P

Inventor

FUJII RYUJI

HK68 patents
⚠️ This page may combine multiple inventors who share the name “FUJII RYUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SAE MAGNETICS HK LTD

23 patents
US7326102B2Feb 5, 2008

Apparatus for lapping thin film magnetic heads

SAE MAGNETICS HK LTD11 citations83
US8861318B1Oct 14, 2014

Thermally assisted magnetic write head, and method of manufacturing the same

SAE MAGNETICS HK LTD13 citations82
US8588040B1Nov 19, 2013

Thermally assisted magnetic head slider, head gimbal assembly, and hard disk drive with the same, and manufacturing method thereof

SAE MAGNETICS HK LTD18 citations82
US7281317B2Oct 16, 2007

Manufacturing method of flying magnetic head slider

SAE MAGNETICS HK LTD13 citations82
US6679760B2Jan 20, 2004

Lapping method of magnetic head slider and lapping method of bar

SAE MAGNETICS HK LTD13 citations82
US10061084B1Aug 28, 2018

Coupling structure of optical components and coupling method of the same

SAE MAGNETICS HK LTD8 citations81
US8638645B1Jan 28, 2014

Thermally assisted magnetic head slider having plasmon unit formed with a recess

SAE MAGNETICS HK LTD15 citations81
US9666218B1May 30, 2017

Thermal assisted magnetic head provided with light detector that detects reflected light

SAE MAGNETICS HK LTD2 citations73
US9437227B1Sep 6, 2016

Thermally assisted magnetic recording head slider, method of manufacturing the same, head gimbal assembly, and hard disk drive

SAE MAGNETICS HK LTD6 citations73
US9489972B2Nov 8, 2016

Light source unit, heat-assisted magnetic recording head using the same, and light source for light source unit

SAE MAGNETICS HK LTD3 citations72
US8902546B1Dec 2, 2014

Head stack assembly with light shielding structure, and disk drive unit with the same

SAE MAGNETICS HK LTD4 citations72
US9163939B2Oct 20, 2015

Method of manufacturing thermally-assisted magnetic head and alignment apparatus thereof

SAE MAGNETICS HK LTD4 citations71
US7153198B2Dec 26, 2006

Fixture for slider lapping, lapping device and lapping method

SAE MAGNETICS HK LTD7 citations71
US10490212B2Nov 26, 2019

Row bar and wafer for forming magnetic heads

SAE MAGNETICS HK LTD3 citations64
US11817678B2Nov 14, 2023

Semiconductor laser and laser radar device having the semiconductor laser

SAE MAGNETICS HK LTD0 citations62
US11127424B1Sep 21, 2021

Thermally-assisted magnetic recording head having active layer with quantum dot structure

SAE MAGNETICS HK LTD1 citations62
US7746597B2Jun 29, 2010

Slider having protective films of differing hydrogen content

SAE MAGNETICS HK LTD4 citations62
US11887638B1Jan 30, 2024

Laser diode, thermally assisted magnetic head, head gimbal assembly, hard disk drive and method of manufacturing a head gimbal assembly

SAE MAGNETICS HK LTD0 citations61
US8801945B2Aug 12, 2014

Write element, thermally assisted magnetic head slider, head gimbal assembly, hard disk drive with the same, and manufacturing method thereof

SAE MAGNETICS HK LTD2 citations59
US12400679B1Aug 26, 2025

Thermally assisted magnetic head, head gimbal assembly, and hard disk drive

SAE MAGNETICS HK LTD0 citations57
US7189150B2Mar 13, 2007

System and method for edge blending hard drive head sliders

SAE MAGNETICS HK LTD3 citations57
US10311903B2Jun 4, 2019

Method and system of testing slider body of thermally-assisted magnetic head

SAE MAGNETICS HK LTD1 citations56
US7464456B2Dec 16, 2008

Slider separating method

SAE MAGNETICS HK LTD4 citations54

SASAKI YOSHITAKA

14 patents
US8456968B1Jun 4, 2013

Thermally-assisted magnetic recording head having dual heat sink layers

SASAKI YOSHITAKA23 citations93
US8867170B1Oct 21, 2014

Multilayer plasmon generator

SASAKI YOSHITAKA16 citations84
US8830799B1Sep 9, 2014

Near-field light generator and thermally-assisted magnetic recording head

SASAKI YOSHITAKA13 citations84
US8760809B1Jun 24, 2014

Thermally-assisted magnetic recording head having a plasmon generator

SASAKI YOSHITAKA14 citations84
US8711663B1Apr 29, 2014

Plasmon generator includes three metal layers for thermally-assisted magnetic recording

SASAKI YOSHITAKA11 citations84
US8509038B1Aug 13, 2013

Near-field light generator and thermally-assisted magnetic recording head

SASAKI YOSHITAKA7 citations84
US8498183B1Jul 30, 2013

Thermally-assisted magnetic recording head having a waveguide and a return path section

SASAKI YOSHITAKA8 citations84
US8493821B1Jul 23, 2013

Thermally-assisted magnetic recording head including a shield

SASAKI YOSHITAKA15 citations84
US9208806B2Dec 8, 2015

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

SASAKI YOSHITAKA4 citations73
US8988975B1Mar 24, 2015

Thermally assisted magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive

SASAKI YOSHITAKA6 citations73
US8861138B2Oct 14, 2014

Multilayer plasmon generator

SASAKI YOSHITAKA3 citations63
US8848494B2Sep 30, 2014

Plasmon generator including two portions made of different metals

SASAKI YOSHITAKA3 citations63
US8619518B1Dec 31, 2013

Thermally-assisted magnetic recording head having expanded near-field light generating layer and method of manufacture

SASAKI YOSHITAKA4 citations63
US9236082B2Jan 12, 2016

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

SASAKI YOSHITAKA1 citations52

SHIMAZAWA KOJI

5 patents

TDK CORP

4 patents

FUJII RYUJI

3 patents

HEADWAY TECHNOLOGIES INC

1 patent

Showing the top 50 of 68 patents by PatentIndex Score.