Inventor
HIRATA KEI
JP114 patents
⚠️ This page may combine multiple inventors who share the name “HIRATA KEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
18 patentsUS7715156B2May 11, 2010
Tunnel magnetoresistive effect element and thin-film magnetic head with tunnel magnetoresistive effect read head element
TDK CORP24 citations93
US8675457B1Mar 18, 2014
Near-field light generator including a plasmon generator and a waveguide
TDK CORP29 citations92
US9640205B1May 2, 2017
Magnetic recording-reproducing head having different sections with different functions including an erase function
TDK CORP11 citations84
US8817418B1Aug 26, 2014
Magnetic head for perpendicular magnetic recording having a write shield
TDK CORP11 citations84
US8811127B1Aug 19, 2014
Magnetic head comprising recording part, reading part, heater for expansion of the recording part, and heater for expansion of the reading part
TDK CORP17 citations84
US8000066B2Aug 16, 2011
Hard disk system incorporating a current perpendicular to plane magneto-resistive effect device with a spacer layer in the thickness range showing conduction performance halfway between OHMIC conduction and semi-conductive conduction
TDK CORP8 citations84
US8000063B2Aug 16, 2011
Magneto-resistive element, thin film magnetic head, magnetic head device, and magnetic recording/reproducing apparatus
TDK CORP10 citations84
US7843668B2Nov 30, 2010
Magnetoresistive element including two ferromagnetic layers
TDK CORP9 citations84
US7782575B2Aug 24, 2010
Magnetoresistive element having free layer, pinned layer, and spacer layer disposed therebetween, the spacer layer including semiconductor layer
TDK CORP15 citations84
US7672092B2Mar 2, 2010
Method for manufacturing magnetic field detecting element, utilizing diffusion of metal
TDK CORP10 citations84
US7672085B2Mar 2, 2010
CPP type magneto-resistive effect device having a semiconductor oxide spacer layer and magnetic disk system
TDK CORP11 citations84
US7663845B2Feb 16, 2010
Current-perpendicular-to-plane magneto-resistive element including multilayer lower magnetic shielding film
TDK CORP7 citations74
US7558027B2Jul 7, 2009
Magnetic field sensor provided with an upper shield layer having portions with different magnetostriction
TDK CORP7 citations74
US7948713B2May 24, 2011
Magnetic head slider using giant magnetostrictive material
TDK CORP6 citations63
US7920362B2Apr 5, 2011
Magnetio-resistive device including a multi-layer spacer which includes a semiconductor oxide layer
TDK CORP4 citations63
US7895731B2Mar 1, 2011
Method for manufacturing magnetic field detecting element utilizing diffusion and migration of silver
TDK CORP2 citations63
US7898775B2Mar 1, 2011
Magnetoresistive device having bias magnetic field applying layer that includes two magnetic layers antiferromagnetically coupled to each other through intermediate layer
TDK CORP2 citations63
US7885042B2Feb 8, 2011
CPP magneto-resistive effect device utilizing an anti-oxidizing layer as part of the spacer layer in a thin-film magnetic head usable in a head gimbal assembly in a hard disk system
TDK CORP4 citations63
HIRATA KEI
7 patentsUS8300359B2Oct 30, 2012
Perpendicular magnetic recording head and magnetic recording device
HIRATA KEI16 citations84
US8164853B2Apr 24, 2012
Perpendicular magnetic write head with side shield saturation magnetic flux density increasing away from magnetic pole
HIRATA KEI14 citations83
US8472137B2Jun 25, 2013
Magnetic head and method of manufacture thereof wherein the head includes a pole layer and non-magnetic layer having a continuous tapered face opposed to a trailing shield
HIRATA KEI9 citations82
US8964514B2Feb 24, 2015
Plasmon generator and thermally-assisted magnetic recording head having the same
HIRATA KEI4 citations73
US8605387B2Dec 10, 2013
Thermally-assisted magnetic recording head including a magnetic pole and a heating element
HIRATA KEI2 citations63
US8559123B2Oct 15, 2013
Magnetic recording device, magnetic recording method and magnetic recording medium for shingle write scheme
HIRATA KEI4 citations63
US8077436B2Dec 13, 2011
CPP-type magnetoresistance effect element having three magnetic layers
HIRATA KEI4 citations63
FUJI XEROX CO LTD
5 patentsUS5752141AMay 12, 1998
Rotating type developing apparatus
FUJI XEROX CO LTD36 citations91
US7835672B2Nov 16, 2010
Developing device, image carrier unit and image forming apparatus
FUJI XEROX CO LTD12 citations84
US7693477B2Apr 6, 2010
Image forming member, toner removing apparatus, developing apparatus, and image forming apparatus
FUJI XEROX CO LTD8 citations83
US5532804AJul 2, 1996
Device for developing an electrostatic image on an image member
FUJI XEROX CO LTD9 citations72
US7937029B2May 3, 2011
Accommodating vessel and image forming device using the same
FUJI XEROX CO LTD2 citations63
HEADWAY TECH INC
5 patentsUS10522178B1Dec 31, 2019
High damping shield with low magnetic moment in perpendicular magnetic recording (PMR) writer
HEADWAY TECH INC12 citations84
US10490210B1Nov 26, 2019
Optimization of high damping shield geometry in perpendicular magnetic recording (PMR) writer
HEADWAY TECH INC6 citations73
US10339964B1Jul 2, 2019
Perpendicular magnetic recording (PMR) write head with patterned high moment trailing shield
HEADWAY TECH INC6 citations73
US11699460B2Jul 11, 2023
Perpendicular magnetic recording (PMR) writer with recessed leading shield
HEADWAY TECH INC0 citations63
US11295767B2Apr 5, 2022
Perpendicular magnetic recording (PMR) writer with recessed leading shield
HEADWAY TECH INC1 citations63
KURARAY CO
4 patentsUS10227481B2Mar 12, 2019
Rubber composition, vulcanized rubber, and tire
KURARAY CO11 citations83
US10370525B2Aug 6, 2019
Rubber compositions
KURARAY CO2 citations73
US9228077B2Jan 5, 2016
Rubber composition and tire
KURARAY CO4 citations73
US8785542B2Jul 22, 2014
Rubber composition and tire
KURARAY CO4 citations71
SASAKI YOSHITAKA
3 patentsUS10839829B1Nov 17, 2020
Magnetic head with a main pole including first and second layers and manufacturing method for the same
SASAKI YOSHITAKA4 citations73
US10586558B1Mar 10, 2020
Magnetic head including a main pole and a write shield
SASAKI YOSHITAKA3 citations73
US10297277B1May 21, 2019
Magnetic head including a coil and a magnetic path forming section
SASAKI YOSHITAKA4 citations73
SAE MAGNETICS HK LTD
2 patentsUS8861318B1Oct 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
KITAGAWA HIROAKI
2 patentsKUBO KEISUKE
1 patentAOKI SUSUMU
1 patentTANAKA KOSUKE
1 patentANAGAWA KENKICHI
1 patentShowing the top 50 of 114 patents by PatentIndex Score.