Inventor · disambiguated record
Hiroyuki Hoshiya
Also filed as: HOSHIYA HIROYUKI
60 granted patents·5 pending applications·870 citations·filing 1993–2020
99Inventor score
Files withHITACHI LTD20HITACHI GLOBAL STORAGE TECH15HITACHI GLOBAL STORAGE TECH NL4WESTERN DIGITAL TECH INC4HITACHI METALS LTD3
Top patents by PatentIndex Score
65 records- 0199US10366714B1Magnetic write head for providing spin-torque-assisted write field enhancementWESTERN DIGITAL TECH INC·Filed 2017·Granted Jul 30, 2019·95 cites·21 claims
- 0298US7532433B2Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using itHITACHI GLOBAL STORAGE TECH·Filed 2007·Granted May 12, 2009·51 cites·14 claims
- 0394US7426091B2Magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Sep 16, 2008·16 cites·11 claims
- 0494US7158351B2Magnetic recording and reproducing head restraining a side readingHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Jan 2, 2007·18 cites·4 claims
- 0593US11011190B2Magnetic write head with write-field enhancement structure including a magnetic notchWESTERN DIGITAL TECH INC·Filed 2020·Granted May 18, 2021·5 cites·24 claims
- 0693US7221538B2Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using itHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 22, 2007·30 cites·21 claims
- 0793US7057853B2Magnetic headHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Jun 6, 2006·37 cites·27 claims
- 0892US9036307B1Heat-assisted magnetic recording (HAMR) write head with recessed near-field transducer and optically transparent protective filmHGST Netherlands BV·Filed 2014·Granted May 19, 2015·37 cites·19 claims
- 0992US8570689B2Differential magnetoresistive effect head and magnetic recording/reading deviceSATO YO·Filed 2009·Granted Oct 29, 2013·16 cites·18 claims
- 1092US8223464B2Differential head having a balanced output and method of manufacturing thereofYASUI KAN·Filed 2009·Granted Jul 17, 2012·18 cites·13 claims
- 1192US6967823B2Magnetic recording headHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted Nov 22, 2005·32 cites·13 claims
- 1292US6690163B1Magnetic sensorHITACHI LTD·Filed 2000·Granted Feb 10, 2004·41 cites·3 claims
- 1391US8514527B2Magnetoresistive effect head having a multilayered pinned layer and/or free layer having amorphous and crystalline layers, and systems thereofKOMAGAKI KOJIRO·Filed 2010·Granted Aug 20, 2013·29 cites·19 claims
- 1491US7859797B2Magnetoresistive head and magnetic storage apparatusHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Dec 28, 2010·12 cites·18 claims
- 1591US6795277B2Magnetic head and magnetic disk driveHITACHI LTD·Filed 2002·Granted Sep 21, 2004·27 cites·6 claims
- 1691US6456466B1Magnetic head with shield layer having discontinuous multi-layer or mixed layer and magnetic recording apparatus utilizing the magnetic headHITACHI LTD·Filed 2000·Granted Sep 24, 2002·29 cites·14 claims
- 1790US10811039B2Magnetic write head for providing spin-torque-assisted write field enhancementWESTERN DIGITAL TECH INC·Filed 2020·Granted Oct 20, 2020·3 cites·36 claims
- 1890US8174799B2Differential magnetoresistive magnetic headHOSHIYA HIROYUKI·Filed 2008·Granted May 8, 2012·22 cites·19 claims
- 1990US7440241B2Magnetoresistive 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
- 2090US5933297AMagnetic storage/read system with read head including magnetoresistive elementHITACHI LTD·Filed 1993·Granted Aug 3, 1999·39 cites·69 claims
- 2189US8779764B2Method for producing magnetoresistive effect element, magnetic sensor, rotation-angle detection deviceMEGURO KENICHI·Filed 2010·Granted Jul 15, 2014·14 cites·9 claims
- 2289US8223463B2Magnetic read headKATADA HIROYUKI·Filed 2009·Granted Jul 17, 2012·10 cites·16 claims
- 2385US10546603B2Magnetic write head for providing spin-torque-assisted write field enhancementWESTERN DIGITAL TECH INC·Filed 2019·Granted Jan 28, 2020·4 cites·20 claims
- 2484US6934128B2Magnetic head and magnetic disk driveHITACHI LTD·Filed 2004·Granted Aug 23, 2005·14 cites·3 claims
- 2583US7813079B2Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using itHITACHI GLOBAL STORAGE TECH·Filed 2008·Granted Oct 12, 2010·3 cites·10 claims
- 2681US6249405B1Magnetic head including magnetoresistive elementHITACHI LTD·Filed 2000·Granted Jun 19, 2001·11 cites·12 claims
- 2779US9488702B2Method for producing magneto-resistive effect element, magnetic sensor, rotation-angle detection deviceHITACHI METALS LTD·Filed 2014·Granted Nov 8, 2016·3 cites·15 claims
- 2878US7443636B2Magnetic head having layered film with tilted crystalline grain structureHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Oct 28, 2008·3 cites·9 claims
- 2978US6603643B2Magnetoresistive head containing oxide layerHITACHI LTD·Filed 2001·Granted Aug 5, 2003·12 cites·4 claims
- 3078US6125019AMagnetic head including magnetoresistive elementHITACHI LTD·Filed 1999·Granted Sep 26, 2000·22 cites·20 claims
- 3178US5843589AMagnetic layered material, and magnetic sensor and magnetic storage/read system based thereonHITACHI LTD·Filed 1996·Granted Dec 1, 1998·41 cites·31 claims
- 3278US5563752AMagnetic recording and reproducing device using a giant magnetoresistive filmHITACHI LTD·Filed 1994·Granted Oct 8, 1996·41 cites·6 claims
- 3377US6937449B2Spin-valve head containing closed-flux-structure domain control filmsHITACHI LTD·Filed 2002·Granted Aug 30, 2005·12 cites·18 claims
- 3476US7400137B1Magnetic encoder having a stable output property with unsaturated magnetic sensorHITACHI METALS LTD·Filed 2007·Granted Jul 15, 2008·8 cites·13 claims
- 3576US6643105B2Magnetic head having magnetic shield layersHITACHI LTD·Filed 2002·Granted Nov 4, 2003·9 cites·2 claims
- 3675US6633465B2Magnetoresistive elementHITACHI LTD·Filed 2001·Granted Oct 14, 2003·7 cites·8 claims
- 3774US7697245B2CPP-GMR magnetic head having GMR-screen layerHITACHI GLOBAL STORAGE TECH·Filed 2006·Granted Apr 13, 2010·2 cites·8 claims
- 3874US7265948B2Magnetoresistive element with oxide magnetic layers and metal magnetic films deposited thereonHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Sep 4, 2007·4 cites·5 claims
- 3974US7061727B2Magnetoresistive head using multilayered varistor materialHITACHI LTD·Filed 2001·Granted Jun 13, 2006·9 cites·8 claims
- 4073US7733614B2Magneto-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
- 4172US6087027AMagnetic layered material, and magnetic sensor and magnetic storage/read system based thereonHITACHI LTD·Filed 1998·Granted Jul 11, 2000·23 cites·12 claims
- 4270US8570690B2Magnetic sensor having a hard bias seed structureOKAMURA SUSUMU·Filed 2011·Granted Oct 29, 2013·2 cites·20 claims
- 4370US7876536B2Multilayered film having crystal grains grown at an inclination to a substrate, and magnetoresistive head using the filmHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Jan 25, 2011·1 cites·14 claims
- 4469US8189304B2Magnetoresistive magnetic head having a cpp element using a heusler alloy layer and a high saturation magnetization layerOKAMURA SUSUMU·Filed 2009·Granted May 29, 2012·5 cites·17 claims
- 4569US7881022B2Magnetic head and method for fabricating the sameHITACHI GLOBAL STORAGE TECH NL·Filed 2007·Granted Feb 1, 2011·5 cites·15 claims
- 4668US9245548B2Magnetic head using a synthetic ferri free structureSHIIMOTO MASATO·Filed 2008·Granted Jan 26, 2016·1 cites·20 claims
- 4768US7440240B2Magnetic head with domain stabilization and magnetic recording/reproducing apparatus using the sameHITACHI GLOBAL STORAGE TECH·Filed 2005·Granted Oct 21, 2008·1 cites·10 claims
- 4867US8564282B2Angle sensor, angle sensor manufacturing method, and angle detection device using the angle sensorHOSHIYA HIROYUKI·Filed 2008·Granted Oct 22, 2013·5 cites·16 claims
- 4965US6794063B2Thin film magnetic head and method of fabricating the headHITACHI LTD·Filed 2002·Granted Sep 21, 2004·5 cites·8 claims
- 5063US8085499B2Thin film perpendicular magnetic recording head, their fabrication process and magnetic disk drive using itKAWATO YOSHIAKI·Filed 2010·Granted Dec 27, 2011·1 cites·7 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →