Inventor · disambiguated record
Takehisa Minowa
Also filed as: KOBAYASHI HIDEKI · MINOWA TAKEHISA
119 granted patents·19 pending applications·1,098 citations·filing 1989–2022
99Inventor score
Top patents by PatentIndex Score
138 records- 0195US7559996B2Rare earth permanent magnet, making method, and permanent magnet rotary machineSHINETSU CHEMICAL CO·Filed 2006·Granted Jul 14, 2009·36 cites·17 claims
- 0294US8377233B2Preparation of rare earth permanent magnet materialSHINETSU CHEMICAL CO·Filed 2011·Granted Feb 19, 2013·12 cites·16 claims
- 0393US7985303B2Rare earth permanent magnet and its preparationSHINETSU CHEMICAL CO·Filed 2010·Granted Jul 26, 2011·9 cites·4 claims
- 0493US7355305B2Small-size direct-acting actuatorSHEN ETSU CHEMICAL CO LTD·Filed 2004·Granted Apr 8, 2008·66 cites·6 claims
- 0592US8231740B2Method for preparing rare earth permanent magnet materialNAKAMURA HAJIME·Filed 2007·Granted Jul 31, 2012·10 cites·20 claims
- 0692US8177881B2Method for extracting and separating rare earth elementsSUGAHARA HIROTO·Filed 2010·Granted May 15, 2012·11 cites·18 claims
- 0791US9044810B2Rare earth magnet and its preparationNOMURA TADAO·Filed 2010·Granted Jun 2, 2015·7 cites·5 claims
- 0891US8277578B2Rare earth permanent magnet and its preparationNAGATA HIROAKI·Filed 2010·Granted Oct 2, 2012·8 cites·9 claims
- 0991US8252123B2Rare earth permanent magnet and its preparationNAGATA HIROAKI·Filed 2010·Granted Aug 28, 2012·8 cites·8 claims
- 1091US6960240B2Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnetSHINETSU CHEMICAL CO·Filed 2002·Granted Nov 1, 2005·34 cites·12 claims
- 1191US5405455ARare earth-based permanent magnetSHINETSU CHEMICAL CO·Filed 1993·Granted Apr 11, 1995·78 cites·6 claims
- 1290US8820729B2Magnet holding jigDOI YUHITO·Filed 2012·Granted Sep 2, 2014·8 cites·9 claims
- 1390US8702084B2Rare earth magnet holding jig, cutting machine, and cutting methodDOI YUHITO·Filed 2011·Granted Apr 22, 2014·8 cites·4 claims
- 1490US8299676B2Axial gap type coreless rotating machineMIYATA KOJI·Filed 2008·Granted Oct 30, 2012·19 cites·7 claims
- 1589US10407752B2Liquid-liquid extraction unit, multistage liquid-liquid extraction apparatus using the unit, and multistage continuous extraction system for rare earth elementsSHINETSU CHEMICAL CO·Filed 2016·Granted Sep 10, 2019·2 cites·13 claims
- 1689US9945047B2Method for growing silicon carbide crystalSHINETSU CHEMICAL CO·Filed 2014·Granted Apr 17, 2018·3 cites·8 claims
- 1789US8697284B2Negative electrode material for lithium ion batteriesSHINETSU CHEMICAL CO·Filed 2012·Granted Apr 15, 2014·5 cites·11 claims
- 1889US8557057B2Rare earth permanent magnet and its preparationNAGATA HIROAKI·Filed 2010·Granted Oct 15, 2013·6 cites·12 claims
- 1988US10612154B2Method for preparing SiC single crystalSHINETSU CHEMICAL CO·Filed 2018·Granted Apr 7, 2020·2 cites·13 claims
- 2088US8269392B2Rotor for permanent magnet rotary machineDOI YUHITO·Filed 2010·Granted Sep 18, 2012·8 cites·8 claims
- 2188US7531933B2Permanent magnet rotating machineSHINETSU CHEMICAL CO·Filed 2007·Granted May 12, 2009·16 cites·5 claims
- 2288US5013411AMethod for producing a corrosion resistant rare earth-containing magnetSHINETSU CHEMICAL CO·Filed 1989·Granted May 7, 1991·41 cites·8 claims
- 2387US10614952B2Rare earth permanent magnets and their preparationSHINETSU CHEMICAL CO·Filed 2017·Granted Apr 7, 2020·1 cites·6 claims
- 2486US9517547B2Super hard alloy baseplate outer circumference cutting blade and manufacturing method thereofKASASHIMA MASAKI·Filed 2011·Granted Dec 13, 2016·7 cites·15 claims
- 2586US8865022B2Phosphor particles and making methodTSUKATANI TOSHIHIKO·Filed 2011·Granted Oct 21, 2014·5 cites·17 claims
- 2686US8115364B2Permanent magnet generator and wind power generator having a multi-stage rotor and statorMINOWA TAKEHISA·Filed 2008·Granted Feb 14, 2012·10 cites·8 claims
- 2786US7485193B2R-FE-B based rare earth permanent magnet materialSHINETSU CHEMICAL CO·Filed 2005·Granted Feb 3, 2009·13 cites·6 claims
- 2885US9951439B2Method for growing silicon carbide crystalSHINETSU CHEMICAL CO·Filed 2014·Granted Apr 24, 2018·2 cites·15 claims
- 2985US8823235B2Rotor for axial gap-type permanent magnetic rotating machineWATANABE NAOKI·Filed 2010·Granted Sep 2, 2014·6 cites·12 claims
- 3085US8012269B2Nd-Fe-B rare earth permanent magnet materialSHINETSU CHEMICAL CO·Filed 2005·Granted Sep 6, 2011·5 cites·11 claims
- 3185US7090730B2R-Fe-B sintered magnetSHINETSU CHEMICAL CO·Filed 2003·Granted Aug 15, 2006·25 cites·5 claims
- 3285US6012977AAbrasive-bladed cutting wheelSHINETSU CHEMICAL CO·Filed 1997·Granted Jan 11, 2000·70 cites·8 claims
- 3384US8025744B2Rare earth permanent magnet and its preparationSHINETSU CHEMICAL CO·Filed 2008·Granted Sep 27, 2011·8 cites·4 claims
- 3483US8567383B2Method and apparatus for multiple cutoff machining of rare earth magnet block, cutting fluid feed nozzle, and magnet block securing jigSATO KOJI·Filed 2012·Granted Oct 29, 2013·3 cites·10 claims
- 3583US8211327B2Preparation of rare earth permanent magnet materialNAKAMURA HAJIME·Filed 2005·Granted Jul 3, 2012·6 cites·12 claims
- 3683US8075707B2Method for preparing rare earth permanent magnet materialNAKAMURA HAJIME·Filed 2007·Granted Dec 13, 2011·7 cites·23 claims
- 3783US7488393B2Rare earth permanent magnetSHINETSU CHEMICAL CO·Filed 2006·Granted Feb 10, 2009·7 cites·5 claims
- 3883US6517427B1Abrasive-bladed multiple cutting wheel assemblySHINETSU CHEMICAL CO·Filed 1998·Granted Feb 11, 2003·49 cites·8 claims
- 3982US8756793B2Method for assembling rotor for use in IPM rotary machineDOI YUHITO·Filed 2010·Granted Jun 24, 2014·6 cites·7 claims
- 4082US8568203B2Method and apparatus for multiple cutoff machining of rare earth magnet block, cutting fluid feed nozzle, and magnet block securing jigSATO KOJI·Filed 2009·Granted Oct 29, 2013·7 cites·12 claims
- 4181US7204891B2Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnetSHINETSU CHEMICAL CO·Filed 2005·Granted Apr 17, 2007·8 cites·6 claims
- 4281US6296720B1Rare earth/iron/boron-based permanent magnet alloy compositionSHINETSU CHEMICAL CO·Filed 1999·Granted Oct 2, 2001·38 cites·3 claims
- 4380US11440849B2SiC crucible, SiC sintered body, and method of producing SiC single crystalSHINETSU CHEMICAL CO·Filed 2016·Granted Sep 13, 2022·1 cites·9 claims
- 4480US9657221B2Wavelength conversion member and light-emitting deviceSHINETSU CHEMICAL CO·Filed 2013·Granted May 23, 2017·6 cites·20 claims
- 4580US7488394B2Rare earth permanent magnetSHINETSU CHEMICAL CO·Filed 2006·Granted Feb 10, 2009·3 cites·6 claims
- 4680US6879468B2Magnetic head actuator having an improved microactuator oscillatably supported by metallic micro-beamsSHINETSU CHEMICAL CO·Filed 2003·Granted Apr 12, 2005·14 cites·7 claims
- 4780US6322637B1Thin ribbon of rare earth-based permanent magnet alloySHINETSU CHEMICAL CO·Filed 2000·Granted Nov 27, 2001·16 cites·2 claims
- 4879US8802040B2Method for extracting and separating light rare earth elementSUGAHARA HIROTO·Filed 2012·Granted Aug 12, 2014·2 cites·2 claims
- 4979US8702083B2Rare earth magnet holding jig and cutting machineDOI YUHITO·Filed 2011·Granted Apr 22, 2014·6 cites·11 claims
- 5079US8424189B2Rotary table for permanent magnet rotating machine and method for manufacturing permanent magnet rotating machineDOI YUHITO·Filed 2012·Granted Apr 23, 2013·3 cites·1 claims
Showing the top 50 of 138 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →