Inventor · disambiguated record
Kimitoshi Etoh
Also filed as: ETOH KIMITOSHI
38 granted patents·4 pending applications·538 citations·filing 1998–2015
98Inventor score
Files withHITACHI GLOBAL STORAGE TECH16HITACHI LTD8HGST Netherlands BV7HITACHI GLOBAL STORAGE TECH NL4ETOH KIMITOSHI2
Top patents by PatentIndex Score
42 records- 0197US9355655B1Magnetic capping layer structure for a spin torque oscillatorHGST Netherlands BV·Filed 2015·Granted May 31, 2016·35 cites·20 claims
- 0296US6995949B2Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the sameHITACHI LTD·Filed 2005·Granted Feb 7, 2006·32 cites·6 claims
- 0396US6813116B2Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the sameHITACHI LTD·Filed 2002·Granted Nov 2, 2004·56 cites·12 claims
- 0495US9230573B1Magnetic recording head with non-magnetic bump structure formed on spin torque oscillatorHGST Netherlands BV·Filed 2015·Granted Jan 5, 2016·20 cites·20 claims
- 0595US9142227B1Microwave assisted magnetic recording (MAMR) write head and systemHGST Netherlands BV·Filed 2014·Granted Sep 22, 2015·31 cites·12 claims
- 0695US7535675B2Magnetic recording head with shaped poleHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted May 19, 2009·28 cites·9 claims
- 0795US6891697B2Magnetic heads for perpendicular recording and magnetic recording disk apparatus using the sameHITACHI LTD·Filed 2004·Granted May 10, 2005·41 cites·4 claims
- 0894US8837088B1Microwave-assisted magnetic recording (MAMR) head with a current confinement structureHGST Netherlands BV·Filed 2013·Granted Sep 16, 2014·23 cites·20 claims
- 0994US8351162B2Magnetic head with electro lapping guideHGST Netherlands BV·Filed 2005·Granted Jan 8, 2013·18 cites·8 claims
- 1094US7681303B2Method for manufacturing a magnetic head sliderHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Mar 23, 2010·23 cites·8 claims
- 1194US7679862B2Perpendicular recording head with reduced thermal protrusionHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Mar 16, 2010·20 cites·18 claims
- 1293US9390733B2Microwave-assisted magnetic recording (MAMR) head with an inclined and recessed main pole structureHGST Netherlands BV·Filed 2013·Granted Jul 12, 2016·19 cites·14 claims
- 1390US7054105B2Magnetic recording head for perpendicular recording and including a portion protruding toward a mail pole and magnetic disc storage apparatus mounting the magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 30, 2006·28 cites·10 claims
- 1489US7990653B2Perpendicular recording magnetic head with a main magnetic pole piece and an auxiliary magnetic pole pieceHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Aug 2, 2011·9 cites·7 claims
- 1587US7848053B2Magnetic head and magnetic disk storage apparatus mounting the headHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Dec 7, 2010·7 cites·16 claims
- 1686US7619857B2Silicon-made magnetic head slider and method of producing the sameHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Nov 17, 2009·7 cites·18 claims
- 1781US8335051B2Perpendicular magnetic recording head having a magnetic layer overhanging a trailing side of a main pole and method of manufacture thereofNUNOKAWA ISAO·Filed 2009·Granted Dec 18, 2012·5 cites·17 claims
- 1881US8203803B2Magnetic recording head for perpendicular recording with wrap around shield, the fabrication process and magnetic disk storage apparatus mounting the magnetic headETOH KIMITOSHI·Filed 2005·Granted Jun 19, 2012·5 cites·18 claims
- 1980US8254059B2Perpendicular magnetic recording head with domain controlled side shieldHORIDE TOMOYA·Filed 2010·Granted Aug 28, 2012·10 cites·25 claims
- 2079US8270260B2Optically assisted magnetic recording head having a waveguide core with a plate-shaped portion protruding from an air bearing surface side of the coreOKADA TOMOHIRO·Filed 2009·Granted Sep 18, 2012·4 cites·12 claims
- 2179US7684149B2Magnetic head and magnetic disk storage apparatus mounting the sameHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Mar 23, 2010·12 cites·13 claims
- 2279US6370107B1Recording medium and recording deviceHITACHI LTD·Filed 1999·Granted Apr 9, 2002·50 cites·13 claims
- 2377US8300358B2Magnetic head having write pole, first soft magnetic films separately disposed on both sides of the main pole, and a second soft magnetic film disposed on a trailing side of the main poleMARUYAMA YOHJI·Filed 2008·Granted Oct 30, 2012·4 cites·11 claims
- 2474US7895732B2Method for manufacturing a perpendicular magnetic recording headHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Mar 1, 2011·2 cites·10 claims
- 2574US7054106B2Magnetic head and magnetic storage apparatusHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 30, 2006·9 cites·18 claims
- 2673US8941948B2Perpendicular recording head with leading bump in the main pole having narrow leading gap (LG)ETOH KIMITOSHI·Filed 2012·Granted Jan 27, 2015·3 cites·21 claims
- 2770US8351154B2Perpendicular recording magnetic head with a varying interval between the main pole and the shield, and methods of manufacturing thereofHITACHI GLOBAL STORAGE TECH NL·Filed 2009·Granted Jan 8, 2013·1 cites·22 claims
- 2868US7881012B2Magnetic head and magnetic disk storage apparatus mounting the headHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Feb 1, 2011·1 cites·8 claims
- 2968US7310203B2Thin film magnetic head having magnetic pole edge layer for achieving both improvement of recording magnetic field and reduction of unnecessary leakage magnetic field, and method of manufacturing sameHITACHI GLOBAL STORAGE TECH·Filed 2002·Granted Dec 18, 2007·7 cites·21 claims
- 3066US9076462B2Magnetic head having a short yoke with a tapered coil structureHGST Netherlands BV·Filed 2013·Granted Jul 7, 2015·1 cites·19 claims
- 3166US6898057B2Thin film magnetic head having multiple layered films determining track width imbedded in an insulating film and method of manufacturing the sameHITACHI LTD·Filed 2003·Granted May 24, 2005·6 cites·20 claims
- 3265US7606006B2Magnetic recording head and magnetic disk storage apparatus mounting the magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2004·Granted Oct 20, 2009·5 cites·9 claims
- 3364US7508631B2Silicon-made magnetic head sliderHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Mar 24, 2009·2 cites·6 claims
- 3463US7788795B2Method for manufacturing a magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Sep 7, 2010·1 cites·6 claims
- 3548US2006262453A1Magnetic recording head and magnetic disk storage apparatus mounting the magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2006·Application pending·0 cites
- 3647US7389578B2Manufacturing method of a perpendicular recording magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Jun 24, 2008·0 cites·10 claims
- 3747US6246652B1Device using sensor for small rotation angleHITACHI LTD·Filed 1998·Granted Jun 12, 2001·13 cites·9 claims
- 3847US2006203381A1Magnetic recording head for perpendicular recording, fabrication process, and magnetic disk storage apparatus mounting magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2006·Application pending·0 cites
- 3945US7333301B2Magnetic recording head and method for manufacturingHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Feb 19, 2008·0 cites·24 claims
- 4042US2001040864A1Recording medium and recording deviceHITACHI LTD·Filed 2001·Application pending·0 cites
- 4139US2011222188A1Perpendicular recording magnetic head, manufacturing method thereof and magnetic disk driveHITACHI LTD·Filed 2011·Application pending·0 cites
- 4231US8830623B2Shield structure for reducing the magnetic induction rate of the trailing shield and systems thereofHAMASAKI TOMOAKI·Filed 2011·Granted Sep 9, 2014·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →