Inventor · disambiguated record
Hiroyuki Katada
Also filed as: KATADA HIROYUKI
27 granted patents·2 pending applications·219 citations·filing 1981–2015
96Inventor score
Files withHGST Netherlands BV12KATADA HIROYUKI4HITACHI GLOBAL STORAGE TECH3SANYO ELECTRIC CO2SHIIMOTO MASATO2
Top patents by PatentIndex Score
29 records- 0194US8705206B1Microwave assisted magnetic recording (MAMR) head having an offset spin torque oscillator (STO) and narrow trailing gapHGST Netherlands BV·Filed 2012·Granted Apr 22, 2014·30 cites·20 claims
- 0293US9099102B2Microwave-assisted magnetic recording head with high saturation magnetization material side shieldHGST Netherlands BV·Filed 2015·Granted Aug 4, 2015·15 cites·16 claims
- 0393US8964332B1Microwave-assisted magnetic recording head with asymmetric side gap for shingled magnetic recordingHGST Netherlands BV·Filed 2013·Granted Feb 24, 2015·18 cites·13 claims
- 0492US9355668B2Hard disk drive with contact detection using a spin torque oscillatorHGST Netherlands BV·Filed 2013·Granted May 31, 2016·16 cites·14 claims
- 0592US9047888B2MAMR head adapted for high speed switchingHGST Netherlands BV·Filed 2012·Granted Jun 2, 2015·17 cites·5 claims
- 0692US8223464B2Differential head having a balanced output and method of manufacturing thereofYASUI KAN·Filed 2009·Granted Jul 17, 2012·18 cites·13 claims
- 0791US8848317B2Magnetic data recording system with mirror image asymmetric magnetic write elementsHGST Netherlands BV·Filed 2012·Granted Sep 30, 2014·15 cites·15 claims
- 0890US9396744B1Two dimensional magnetic read head having asymmetrical secondary read elementsHGST Netherlands BV·Filed 2015·Granted Jul 19, 2016·11 cites·17 claims
- 0990US8174799B2Differential magnetoresistive magnetic headHOSHIYA HIROYUKI·Filed 2008·Granted May 8, 2012·22 cites·19 claims
- 1090US7440241B2Magnetoresistive head using longitudinal biasing method with 90-degree magnetic interlayer coupling and manufacturing method thereofHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Oct 21, 2008·10 cites·15 claims
- 1189US8223463B2Magnetic read headKATADA HIROYUKI·Filed 2009·Granted Jul 17, 2012·10 cites·16 claims
- 1280US8462468B2Magnetic head and magnetic disk drive to be used for shingled recording methodKATADA HIROYUKI·Filed 2011·Granted Jun 11, 2013·5 cites·6 claims
- 1378US8773822B2Spin-torque oscillator for microwave assisted magnetic recordingMATSUBARA MASATO·Filed 2011·Granted Jul 8, 2014·4 cites·17 claims
- 1474US7697245B2CPP-GMR magnetic head having GMR-screen layerHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Apr 13, 2010·2 cites·8 claims
- 1573US7733614B2Magneto-resistive head having a stable response property without longitudinal biasing and method for manufacturing the sameHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted Jun 8, 2010·4 cites·5 claims
- 1671US9190081B2AF-coupled dual side shield reader with AF-coupled USLHGST Netherlands BV·Filed 2014·Granted Nov 17, 2015·2 cites·22 claims
- 1769US8643967B2Magnetic disk drive and microwave assisted recording methodKATADA HIROYUKI·Filed 2012·Granted Feb 4, 2014·2 cites·14 claims
- 1868US9245548B2Magnetic head using a synthetic ferri free structureSHIIMOTO MASATO·Filed 2008·Granted Jan 26, 2016·1 cites·20 claims
- 1967USD271200SProjection television receiverSANYO ELECTRIC CO·Filed 1981·Granted Nov 1, 1983·11 cites·1 claims
- 2066US9672856B1Perpendicular magnetic recording media with lateral exchange control layerHGST Netherlands BV·Filed 2015·Granted Jun 6, 2017·2 cites·17 claims
- 2161US8270122B2Magnetic recording and reproducing device including a differential read headSHIIMOTO MASATO·Filed 2009·Granted Sep 18, 2012·1 cites·5 claims
- 2257US8355224B2Sensor shape of a CPP magnetic head for improving the MR ratioHITACHI GLOBAL STORAGE TECH NL·Filed 2008·Granted Jan 15, 2013·0 cites·13 claims
- 2355US8547666B2Current perpendicular to plane magnetoresistive head having suppressed spin torque noiseKATADA HIROYUKI·Filed 2007·Granted Oct 1, 2013·0 cites·8 claims
- 2454US2015092303A1Graded side shield gap readerHGST Netherlands BV·Filed 2013·Application pending·0 cites
- 2554US2011181987A1Magnetic recording/reproduction headHITACHI LTD·Filed 2009·Application pending·0 cites
- 2651US9082434B2Asymmetric sensitivity readerHGST Netherlands BV·Filed 2013·Granted Jul 14, 2015·0 cites·20 claims
- 2746US9406322B2Graded side shield gap readerHGST Netherlands BV·Filed 2015·Granted Aug 2, 2016·0 cites·15 claims
- 2842USD281604SProjection television receiverSANYO ELECTRIC CO·Filed 1983·Granted Dec 3, 1985·3 cites·1 claims
- 2931US8830623B2Shield 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 →