Inventor · disambiguated record
Hisayuki Yazawa
Also filed as: YAZAWA HISAYUKI
61 granted patents·8 pending applications·512 citations·filing 1999–2024
98Inventor score
Files withALPS ELECTRIC CO LTD38TDK CORP16ALPS ALPINE CO LTD5YAZAWA HISAYUKI4ALPS ELECTRIC COMPANY CO LTD1
Top patents by PatentIndex Score
69 records- 0197US7593185B2Perpendicular magnetic recording head having spacer layer in predetermined portionTDK CORP·Filed 2006·Granted Sep 22, 2009·39 cites·6 claims
- 0295US7643246B2Perpendicular magnetic recording head having a stepped portion and method of manufacturing the sameTDK CORP·Filed 2006·Granted Jan 5, 2010·21 cites·11 claims
- 0395US6687084B2Perpendicular magnetic recording head having main magnetic pole layer formed on high-flatness surface of yoke layer, and method of manufacturing the headALPS ELECTRIC CO LTD·Filed 2001·Granted Feb 3, 2004·51 cites·3 claims
- 0492US6903900B2Perpendicular magnetic recording head including nonmagnetic layer overlaying main pole layerALPS ELECTRIC CO LTD·Filed 2001·Granted Jun 7, 2005·38 cites·17 claims
- 0591US7248437B2Perpendicular magnetic recording head and method for manufacturing the sameALPS ELECTRIC CO LTD·Filed 2004·Granted Jul 24, 2007·33 cites·14 claims
- 0688US11346738B2Pressure sensor having a cap being attached to the substrate surface with an adhesiveALPS ALPINE CO LTD·Filed 2020·Granted May 31, 2022·2 cites·9 claims
- 0788US8116033B2Thin-film magnetic head with main magnetic pole layer and auxiliary yoke layer flare configurationsKAMEDA HIROSHI·Filed 2008·Granted Feb 14, 2012·11 cites·2 claims
- 0887US7392577B2Method for manufacturing a perpendicular magnetic headTDK CORP·Filed 2004·Granted Jul 1, 2008·34 cites·5 claims
- 0986US7990654B2Perpendicular magnetic recording headTDK CORP·Filed 2008·Granted Aug 2, 2011·7 cites·7 claims
- 1083US8085500B2Perpendicular magnetic recording head with partial side shield layersYAZAWA HISAYUKI·Filed 2008·Granted Dec 27, 2011·7 cites·4 claims
- 1183US6697221B2Perpendicular magnetic recording head with inverted trapezoidal main magnetic pole layerALPS ELECTRIC CO LTD·Filed 2001·Granted Feb 24, 2004·51 cites·7 claims
- 1282US7692896B2Perpendicular magnetic recording head having return path layer and gap adjusting layerTDK CORP·Filed 2006·Granted Apr 6, 2010·4 cites·16 claims
- 1380US6449122B1Thin-film magnetic head including soft magnetic film exhibiting high saturation magnetic flux density and low coercive forceALPS ELECTRIC CO LTD·Filed 2000·Granted Sep 10, 2002·14 cites·10 claims
- 1479US7181829B2Method of manufacturing a perpendicular magnetic recording headALPS ELECTRIC CO LTD·Filed 2005·Granted Feb 27, 2007·7 cites·1 claims
- 1578US7113367B2FeNiRe soft magnetic film and thin film magnetic head using the same for simultaneous adjustment of resistivity and saturated magnetic flux densityALPS ELECTRIC CO LTD·Filed 2003·Granted Sep 26, 2006·10 cites·6 claims
- 1677US9559030B2Electronic component and method of manufacturing the sameALPS ELECTRIC CO LTD·Filed 2016·Granted Jan 31, 2017·4 cites·12 claims
- 1777US7002778B2Magnetic head having an Fe-Ni-X layerALPS ELECTRIC CO LTD·Filed 2003·Granted Feb 21, 2006·11 cites·16 claims
- 1877US6751071B2Thin film magnetic head comprising magnetoresistive element having shield layer formed by plating and method of manufacturing the thin film magnetic headALPS ELECTRIC COMPANY CO LTD·Filed 2001·Granted Jun 15, 2004·16 cites·3 claims
- 1977US6721130B2Thin-film magnetic head having thin coil-layer and method for manufacturing the thin-film magnetic headALPS ELECTRIC CO LTD·Filed 2001·Granted Apr 13, 2004·11 cites·13 claims
- 2077US6560076B1Thin-film magnetic write headALPS ELECTRIC CO LTD·Filed 2000·Granted May 6, 2003·12 cites·7 claims
- 2176US8796789B2Physical quantity sensor and method of making the sameALPS ELECTRIC CO LTD·Filed 2013·Granted Aug 5, 2014·5 cites·13 claims
- 2276US7990655B2Perpendicular magnetic recording head having a bottom shield part magnetically connected to a pair of side shield partsTDK CORP·Filed 2008·Granted Aug 2, 2011·3 cites·3 claims
- 2376US6731458B2Thin film magnetic head with upper core and lower core layers reducing side-fringingALPS ELECTRIC CO LTD·Filed 2001·Granted May 4, 2004·11 cites·4 claims
- 2474US7889457B2Perpendicular magnetic recording head device capable of increasing magnetic field gradient to exhibit excellent recording performance while maintaining magnetic field intensityTDK CORP·Filed 2006·Granted Feb 15, 2011·2 cites·4 claims
- 2574US7472470B2Method of manufacturing a perpendicular magnetic recording headTDK CORP·Filed 2007·Granted Jan 6, 2009·1 cites·2 claims
- 2673US6600629B2Thin film magnetic head having gap layer made of nip and method of manufacturing the sameALPS ELECTRIC CO LTD·Filed 2001·Granted Jul 29, 2003·9 cites·5 claims
- 2770US7372671B2Disk apparatusTDK CORP·Filed 2004·Granted May 13, 2008·7 cites·34 claims
- 2870US7167340B2Thin-film magnetic head appropriately suppressing side fringing and method for fabricating the sameALPS ELECTRIC CO LTD·Filed 2001·Granted Jan 23, 2007·7 cites·15 claims
- 2970US6768611B2Thin film magnetic head causing appropriately suppressed side fringing and method of manufacturing the sameALPS ELECTRIC CO LTD·Filed 2001·Granted Jul 27, 2004·8 cites·24 claims
- 3068US7489473B2Magnetic recording head having a switching layer which may be rendered non-magnetic by heatingTDK CORP·Filed 2006·Granted Feb 10, 2009·1 cites·6 claims
- 3168US7181828B2Method for manufacturing perpendicular magnetic recording headALPS ELECTRIC CO LTD·Filed 2004·Granted Feb 27, 2007·12 cites·6 claims
- 3266US7486477B2FeCoNi soft magnetic film including a controlled ratio of chlorine and sulfurTDK CORP·Filed 2006·Granted Feb 3, 2009·2 cites·3 claims
- 3366US6999276B2Magnetic head with magnetic pole minimum Fe content difference and Fe content increasing toward interface with gap layerALPS ELECTRIC CO LTD·Filed 2002·Granted Feb 14, 2006·6 cites·6 claims
- 3464US7206168B2Thin film magnetic head equipped with toroidal coil layerALPS ELECTRIC CO LTD·Filed 2004·Granted Apr 17, 2007·5 cites·11 claims
- 3563US7190553B2Thin-film magnetic head having lower magnetic pole layer and insulator layer behind the lower magnetic pole layer in the direction of height of the pole layer, and method for manufacturing the thin-film magnetic headALPS ELECTRIC CO LTD·Filed 2001·Granted Mar 13, 2007·5 cites·15 claims
- 3662US7215512B2Thin-film magnetic head, magnetic device including the same, and method for manufacturing the sameALPS ELECTRIC CO LTD·Filed 2004·Granted May 8, 2007·4 cites·6 claims
- 3760US7506432B2Method of manufacturing thin-film magnetic headTDK CORP·Filed 2007·Granted Mar 24, 2009·0 cites·4 claims
- 3860US6638596B1Thin film magnetic head using soft magnetic film having soft magnetic characteristics of high resistivity, low coercive force, and high saturation magnetic flux densityALPS ELECTRIC CO LTD·Filed 2000·Granted Oct 28, 2003·4 cites·7 claims
- 3959US8418557B2Physical quantity sensorYAZAWA HISAYUKI·Filed 2010·Granted Apr 16, 2013·1 cites·7 claims
- 4059US7288333B2Magnetic film and thin film magnetic head using this magnetic filmALPS ELECTRIC CO LTD·Filed 2003·Granted Oct 30, 2007·6 cites·18 claims
- 4157US7280320B2Thin-film magnetic head and manufacturing method thereofALPS ELECTRIC CO LTD·Filed 2004·Granted Oct 9, 2007·2 cites·14 claims
- 4257US6958886B2Perpendicular magnetic recording head having main magnetic pole layer formed on high-flatness surface, and method of manufacturing the headALPS ELECTRIC CO LTD·Filed 2003·Granted Oct 25, 2005·4 cites·10 claims
- 4357US6636381B1Thin-film magnetic head for reducing track width, preventing write fringing and reducing magnetic saturation, and production method thereofALPS ELECTRIC CO LTD·Filed 2000·Granted Oct 21, 2003·5 cites·7 claims
- 4456US12241799B2Load sensor device having shock absorberALPS ALPINE CO LTD·Filed 2022·Granted Mar 4, 2025·0 cites·14 claims
- 4556US7037421B2Thin-film magnetic head having magnetic gap formed of NiPALPS ELECTRIC CO LTD·Filed 2001·Granted May 2, 2006·2 cites·1 claims
- 4656US6704162B2Thin-film head for reducing track width, preventing write fringing and reducing saturationALPS ELECTRIC CO LTD·Filed 2002·Granted Mar 9, 2004·2 cites·10 claims
- 4756US2024410767A1Force sensor and method for manufacturing force sensorALPS ALPINE CO LTD·Filed 2024·Application pending·0 cites
- 4855US7626784B2Magnetic recording head including main magnetic pole layer, return path layer, and coil layerTDK CORP·Filed 2006·Granted Dec 1, 2009·0 cites·11 claims
- 4955US6882502B2Thin-film magnetic head with narrowed track width and method for making sameALPS ELECTRIC CO LTD·Filed 2001·Granted Apr 19, 2005·2 cites·6 claims
- 5054US7370406B2Method of manufacturing a thin film structureTDK CORP·Filed 2004·Granted May 13, 2008·2 cites·4 claims
Showing the top 50 of 69 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hisayuki Yazawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →