Inventor · disambiguated record
Masayuki Takagishi
Also filed as: TAKAGISHI MASAYUKI
147 granted patents·41 pending applications·2,064 citations·filing 1997–2025
99Inventor score
Top patents by PatentIndex Score
188 records- 0199US11393493B1Magnetic head and magnetic recording deviceTOSHIBA KK·Filed 2021·Granted Jul 19, 2022·17 cites·20 claims
- 0299US10236021B2Magnetic recording apparatus having magnetic flux control part and magnetic recording head having magnetic flux control partTOSHIBA KK·Filed 2017·Granted Mar 19, 2019·82 cites·20 claims
- 0399US7957098B2Magnetic recording head and magnetic recording apparatusTOSHIBA KK·Filed 2008·Granted Jun 7, 2011·128 cites·21 claims
- 0499US6937446B2Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing systemTOSHIBA KK·Filed 2001·Granted Aug 30, 2005·124 cites·40 claims
- 0598US11398244B2Magnetic head with stacked body having non-magnetic layers and differing length magnetic layersTOSHIBA KK·Filed 2021·Granted Jul 26, 2022·11 cites·12 claims
- 0698US7791829B2Apparatus for assisting write operation using high frequency magnetic field in disk driveTOSHIBA KK·Filed 2008·Granted Sep 7, 2010·65 cites·12 claims
- 0797US11721359B2Magnetic head and magnetic recording deviceTOSHIBA KK·Filed 2022·Granted Aug 8, 2023·3 cites·12 claims
- 0897US8320079B2Magnetic head assembly and magnetic recording/reproducing apparatusIWASAKI HITOSHI·Filed 2009·Granted Nov 27, 2012·72 cites·7 claims
- 0997US8139322B2Magnetic recording head with protruding spin torque oscillatorYAMADA KENICHIRO·Filed 2008·Granted Mar 20, 2012·45 cites·20 claims
- 1097US7379278B2Magnetoresistance effect element, having a nonmagnetic intermediate layer having a two-dimensional fluctuation of resistanceTOSHIBA KK·Filed 2006·Granted May 27, 2008·34 cites·20 claims
- 1197US7046489B2Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing systemTOSHIBA KK·Filed 2005·Granted May 16, 2006·63 cites·10 claims
- 1296US11631423B2Magnetic recording deviceTOSHIBA KK·Filed 2022·Granted Apr 18, 2023·7 cites·21 claims
- 1396US8767346B2Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording methodYAMADA KENICHIRO·Filed 2009·Granted Jul 1, 2014·18 cites·10 claims
- 1496US8472140B2Spin oscillator or magnetic recorder including multiple injection layers in the magnetic recording headYAMADA KENICHIRO·Filed 2012·Granted Jun 25, 2013·24 cites·11 claims
- 1596US8270112B2Magnetic head with spin oscillation device(s) and magnetic recording deviceFUNAYAMA TOMOMI·Filed 2008·Granted Sep 18, 2012·67 cites·16 claims
- 1696US8164854B2Magnetic recording head with spin oscillation device and magnetic recording apparatus including the magnetic recording headTAKAGISHI MASAYUKI·Filed 2008·Granted Apr 24, 2012·45 cites·26 claims
- 1796US8154825B2Magnetic recording head and magnetic recording deviceTAKASHITA MASAHIRO·Filed 2008·Granted Apr 10, 2012·76 cites·21 claims
- 1896US7038893B2Magnetoresistance effect element having a nonmagnetic intermediate layer having a two-dimensional fluctuation of resistanceTOSHIBA KK·Filed 2005·Granted May 2, 2006·25 cites·17 claims
- 1996US6847509B2Magnetoresistive head and perpendicular magnetic recording-reproducing apparatusTOSHIBA KK·Filed 2002·Granted Jan 25, 2005·41 cites·12 claims
- 2096US6266216B1Inductive/MR composite type thin-film magnetic head with NLTS reductionREAD RITE CORP·Filed 1997·Granted Jul 24, 2001·166 cites·3 claims
- 2195US10978098B1Magnetic recording deviceTOSHIBA KK·Filed 2020·Granted Apr 13, 2021·6 cites·17 claims
- 2295US8400734B2Magnetic recording head and magnetic recording apparatusYAMADA KENICHIRO·Filed 2011·Granted Mar 19, 2013·30 cites·15 claims
- 2395US8238060B2Magnetic recording head and magnetic recording apparatusYAMADA KENICHIRO·Filed 2010·Granted Aug 7, 2012·24 cites·15 claims
- 2495US8081397B2Magnetic head assembly and magnetic recording apparatusFUNAYAMA TOMOMI·Filed 2009·Granted Dec 20, 2011·30 cites·21 claims
- 2595US7116529B2Magnetoresistive element in which pinned magnetization layers have antiparallel pinned directions, magnetic head and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2003·Granted Oct 3, 2006·60 cites·17 claims
- 2695US7072153B2Magnetoresistance effect element having a nonmagnetic intermediate layer having a two-dimensional fluctuation of resistanceTOSHIBA KK·Filed 2003·Granted Jul 4, 2006·35 cites·16 claims
- 2795US6125018AComposite type thin-film magnetic headREAD RITE SMI CORP·Filed 1998·Granted Sep 26, 2000·157 cites·8 claims
- 2894US12080325B2Magnetic head and magnetic recording deviceTOSHIBA KK·Filed 2023·Granted Sep 3, 2024·1 cites·17 claims
- 2994US9805745B1Magnetic recording and reproducing device comprising a magnetic head including a trailing shield and first and second shields having alternating magnetic and nonmagnetic layersTOSHIBA KK·Filed 2017·Granted Oct 31, 2017·19 cites·17 claims
- 3094US8564904B2Magnetic head with stacked magnetic layers, magnetic head assembly, and magnetic recording/reproducing apparatusIWASAKI HITOSHI·Filed 2011·Granted Oct 22, 2013·16 cites·10 claims
- 3194US7196877B2Magnetoresistive element, magnetoresistive head and magnetic reproducing apparatusTOSHIBA KK·Filed 2003·Granted Mar 27, 2007·48 cites·19 claims
- 3294US6982845B2Magnetic recording apparatus and magnetic recording methodTOSHIBA KK·Filed 2003·Granted Jan 3, 2006·47 cites·19 claims
- 3393US8547662B2Magnetic recording head and magnetic recording apparatusYAMADA KENICHIRO·Filed 2012·Granted Oct 1, 2013·16 cites·26 claims
- 3493US8264799B2Magnetic recording headAKIYAMA JUNICHI·Filed 2008·Granted Sep 11, 2012·34 cites·16 claims
- 3592US8687321B2Magnetic head assemblyYAMADA KENICHIRO·Filed 2009·Granted Apr 1, 2014·13 cites·9 claims
- 3692US8654480B2Magnetic head with spin torque oscillator and magnetic recording headSHIMIZU MARIKO·Filed 2012·Granted Feb 18, 2014·20 cites·10 claims
- 3792US8295009B2Magnetic recording head and magnetic recording apparatusYAMADA KENICHIRO·Filed 2011·Granted Oct 23, 2012·18 cites·10 claims
- 3892US8238058B2Magnetic recording head, magnetic head assembly, and magnetic recording apparatusSHIMIZU MARIKO·Filed 2011·Granted Aug 7, 2012·23 cites·20 claims
- 3991US7791843B2Magnetoresistance effect element, magnetic head and magnetic recording and/or reproducing systemTOSHIBA KK·Filed 2009·Granted Sep 7, 2010·7 cites·11 claims
- 4090US11710501B2Magnetic head and magnetic recording deviceTOSHIBA KK·Filed 2022·Granted Jul 25, 2023·2 cites·25 claims
- 4190US11705152B2Magnetic head and magnetic recording device including a stacked body having a first magnetic member and a second magnetic memberTOSHIBA KK·Filed 2022·Granted Jul 18, 2023·2 cites·6 claims
- 4290US8446691B2Magnetic recording deviceTAKAGISHI MASAYUKI·Filed 2012·Granted May 21, 2013·16 cites·20 claims
- 4390US8120875B2Magnetic recording apparatus utilizing a spin torque oscillator which interacts with an antenna layer in the magnetic recording mediumTAKAGISHI MASAYUKI·Filed 2009·Granted Feb 21, 2012·11 cites·5 claims
- 4489US12068004B2Magnetic recording deviceTOSHIBA KK·Filed 2023·Granted Aug 20, 2024·2 cites·20 claims
- 4589US9589581B2Microwave-assisted magnetic recording head and magnetic recording apparatus including the sameTOSHIBA KK·Filed 2015·Granted Mar 7, 2017·10 cites·18 claims
- 4689US6724582B2Current perpendicular to plane type magnetoresistive device, magnetic head, and magnetic recording/reproducing apparatusTOSHIBA KK·Filed 2002·Granted Apr 20, 2004·25 cites·20 claims
- 4788US9117465B2Non-local spin valve element with three terminals, hard disk head, and magnetic recording and reproducing apparatusTOSHIBA KK·Filed 2014·Granted Aug 25, 2015·9 cites·15 claims
- 4888US8027118B2Method and apparatus for controlling head with spin-torque oscillator in a disk driveTOSHIBA KK·Filed 2010·Granted Sep 27, 2011·11 cites·14 claims
- 4987US11295766B2Magnetic recording device supplied with varying recording currentTOSHIBA KK·Filed 2021·Granted Apr 5, 2022·2 cites·5 claims
- 5087US8879213B2Magneto-resistance effect element, magnetic head, magnetic head assembly, magnetic recording and reproducing apparatus, and method for manufacturing magneto-resistance effect elementTOSHIBA KK·Filed 2013·Granted Nov 4, 2014·10 cites·20 claims
Showing the top 50 of 188 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →