Inventor · disambiguated record
Yoshihito Yoshizawa
Also filed as: YOSHIZAWA YOSHIHITO
43 granted patents·10 pending applications·928 citations·filing 1986–2017
98Inventor score
Top patents by PatentIndex Score
53 records- 0197US10468182B2Rapidly quenched Fe-based soft-magnetic alloy ribbon and its production method and coreHITACHI METALS LTD·Filed 2017·Granted Nov 5, 2019·6 cites·9 claims
- 0297US4985089AFe-base soft magnetic alloy powder and magnetic core thereof and method of producing sameHITACHI METALS LTD·Filed 1988·Granted Jan 15, 1991·86 cites·15 claims
- 0397US4881989AFe-base soft magnetic alloy and method of producing sameHITACHI METALS LTD·Filed 1987·Granted Nov 21, 1989·110 cites·27 claims
- 0496US6425960B1Soft magnetic alloy strip, magnetic member using the same, and manufacturing method thereofHITACHI METALS LTD·Filed 2000·Granted Jul 30, 2002·94 cites·23 claims
- 0595US8177923B2Nano-crystalline, magnetic alloy, its production method, alloy ribbon and magnetic partOHTA MOTOKI·Filed 2006·Granted May 15, 2012·14 cites·27 claims
- 0695US5160379AFe-base soft magnetic alloy and method of producing sameHITACHI METALS LTD·Filed 1991·Granted Nov 3, 1992·73 cites·6 claims
- 0794US8182620B2Nano-crystalline, magnetic alloy, its production method, alloy ribbon and magnetic partOHTA MOTOKI·Filed 2010·Granted May 22, 2012·6 cites·25 claims
- 0894US5611871AMethod of producing nanocrystalline alloy having high permeabilityHITACHI METALS LTD·Filed 1995·Granted Mar 18, 1997·51 cites·5 claims
- 0994US5567537AMagnetic core element for antenna, thin-film antenna, and card equipped with thin-film antennaHITACHI METALS LTD·Filed 1995·Granted Oct 22, 1996·82 cites·13 claims
- 1092US9290831B2Soft-magnetic, amorphous alloy ribbon and its production method, and magnetic core constituted therebyYOSHIZAWA YOSHIHITO·Filed 2010·Granted Mar 22, 2016·7 cites·16 claims
- 1192US9222145B2Soft magnetic alloy ribbon and its production method, and magnetic device having soft magnetic alloy ribbonOHTA MOTOKI·Filed 2010·Granted Dec 29, 2015·6 cites·2 claims
- 1292US6648990B2Co-based magnetic alloy and magnetic members made of the sameHITACHI METALS LTD·Filed 2002·Granted Nov 18, 2003·46 cites·14 claims
- 1391US8414712B2Thin strip of amorphous alloy, nanocrystal soft magnetic alloy, and magnetic coreYOSHIZAWA YOSHIHITO·Filed 2009·Granted Apr 9, 2013·10 cites·3 claims
- 1491US8287666B2Nano-crystalline, magnetic alloy, its production method, alloy ribbon and magnetic partOHTA MOTOKI·Filed 2010·Granted Oct 16, 2012·9 cites·42 claims
- 1591US5069731ALow-frequency transformerHITACHI METALS LTD·Filed 1989·Granted Dec 3, 1991·47 cites·8 claims
- 1689US8083867B2Amorphous alloy ribbon, nanocrystalline soft magnetic alloy and magnetic core consisting of nanocrystalline soft magnetic alloyYOSHIZAWA YOSHIHITO·Filed 2006·Granted Dec 27, 2011·7 cites·12 claims
- 1787US9224527B2Production method of ultrafine crystalline alloy ribbonHITACHI METALS LTD·Filed 2012·Granted Dec 29, 2015·3 cites·6 claims
- 1885US8007600B2Soft magnetic thin strip, process for production of the same, magnetic parts, and amorphous thin stripHITACHI METALS LTD·Filed 2008·Granted Aug 30, 2011·13 cites·12 claims
- 1985US7425239B2Fe-based amorphous alloy ribbonHITACHI METALS LTD·Filed 2005·Granted Sep 16, 2008·15 cites·13 claims
- 2081US10115509B2Ultrafine-crystalline alloy ribbon, fine-crystalline, soft-magnetic alloy ribbon, and magnetic device comprising itHITACHI METALS LTD·Filed 2013·Granted Oct 30, 2018·2 cites·6 claims
- 2181US7935196B2Soft magnetic ribbon, magnetic core, magnetic part and process for producing soft magnetic ribbonHITACHI METALS LTD·Filed 2008·Granted May 3, 2011·3 cites·25 claims
- 2281US7837807B2Magnetic core for current transformer, current transformer, and watt-hour meterHITACHI METALS LTD·Filed 2007·Granted Nov 23, 2010·10 cites·10 claims
- 2379US7473325B2Current transformer core, current transformer and power meterHITACHI METALS LTD·Filed 2005·Granted Jan 6, 2009·4 cites·12 claims
- 2479US4918555AMagnetic head containing an Fe-base soft magnetic alloy layerHITACHI METALS LTD·Filed 1988·Granted Apr 17, 1990·23 cites·20 claims
- 2577US5591276AMagnetic alloy with ultrafine crystal grains and method of producing sameHITACHI METALS LTD·Filed 1993·Granted Jan 7, 1997·25 cites·25 claims
- 2676US8663399B2Iron-based high saturation induction amorphous alloyHASEGAWA RYUSUKE·Filed 2005·Granted Mar 4, 2014·3 cites·19 claims
- 2774US4945339AAnti-theft sensor markerHITACHI METALS LTD·Filed 1988·Granted Jul 31, 1990·33 cites·13 claims
- 2874US4769091AMagnetic coreHITACHI METALS LTD·Filed 1987·Granted Sep 6, 1988·14 cites·3 claims
- 2971US4871925AHigh-voltage pulse generating apparatusHITACHI METALS LTD·Filed 1988·Granted Oct 3, 1989·19 cites·10 claims
- 3070US7141127B2Low core loss magnetic alloy with high saturation magnetic flux density and magnetic parts made of sameHITACHI METALS LTD·Filed 2004·Granted Nov 28, 2006·11 cites·18 claims
- 3170US5966064ANanocrystalline alloy having excellent pulse attenuation characteristics, method of producing the same, choke coil, and noise filterHITACHI METALS LTD·Filed 1994·Granted Oct 12, 1999·22 cites·19 claims
- 3268US5725686AMagnetic core for pulse transformer and pulse transformer made thereofHITACHI METALS LTD·Filed 1994·Granted Mar 10, 1998·28 cites·13 claims
- 3366US8298355B2Magnetic alloy, amorphous alloy ribbon, and magnetic partYOSHIZAWA YOSHIHITO·Filed 2008·Granted Oct 30, 2012·2 cites·7 claims
- 3459US9177706B2Method of producing an amorphous transformer for electric power supplyFUKUI KAZUYUKI·Filed 2011·Granted Nov 3, 2015·0 cites·20 claims
- 3555US10546674B2Fe-based soft magnetic alloy ribbon and magnetic core comprising sameHITACHI METALS LTD·Filed 2015·Granted Jan 28, 2020·0 cites·9 claims
- 3654US2009189728A1Amorphous transformer for electric power supplyFUKUI KAZUYUKI·Filed 2007·Application pending·0 cites
- 3754US2006180248A1Iron-based high saturation induction amorphous alloyHITACHI METALS LTD·Filed 2005·Application pending·0 cites
- 3853US2010098576A1Iron-based soft magnetic alloy, thin ribbon of amorphous alloy, and magnetic partHITACHI METALS LTD·Filed 2008·Application pending·0 cites
- 3952US2013314198A1Rapidly quenched fe-based soft-magnetic alloy ribbon and its production method and coreYOSHIZAWA YOSHIHITO·Filed 2012·Application pending·0 cites
- 4052US2016027566A1Primary ultrafine-crystalline alloy, nano-crystalline, soft magnetic alloy and its production method, and magnetic device formed by nano-crystalline, soft magnetic alloyHITACHI METALS LTD·Filed 2015·Application pending·0 cites
- 4151US6031341AMiniaturized transformer and inverter circuit and discharge tube glow circuit including such miniaturized transformerHITACHI METALS LTD·Filed 1997·Granted Feb 29, 2000·12 cites·10 claims
- 4251US5151137ASoft magnetic alloy with ultrafine crystal grains and method of producing sameHITACHI METALS LTD·Filed 1990·Granted Sep 29, 1992·11 cites·23 claims
- 4351US2012318412A1Primary ultrafine-crystalline alloy, nano-crystalline, soft magnetic alloy and its production method, and magnetic device formed by nano-crystalline, soft magnetic alloyOHTA MOTOKI·Filed 2011·Application pending·0 cites
- 4447US8895186B2Anode for lithium-ion rechargeable battery and lithium-ion rechargeable battery including sameNAKABAYASHI TAKASHI·Filed 2011·Granted Nov 25, 2014·0 cites·19 claims
- 4544US2014191832A1Primary ultrafine-crystalline alloy ribbon and its cutting method, and nano-crystalline, soft magnetic alloy ribbon and magnetic device using itOHTA MOTOKI·Filed 2012·Application pending·0 cites
- 4642US8021498B2Magnetic core and applied product making use of the sameHITACHI METALS LTD·Filed 2006·Granted Sep 20, 2011·0 cites·9 claims
- 4741US5635828AActive filter circuit and power supply apparatus including sameHITACHI METALS LTD·Filed 1994·Granted Jun 3, 1997·10 cites·13 claims
- 4840US2006000525A1Fe-based amorphous alloy ribbon and magnetic core formed therebyHITACHI METALS LTD·Filed 2005·Application pending·0 cites
- 4939US5114503AMagnetic coreHITACHI METALS LTD·Filed 1987·Granted May 19, 1992·5 cites·1 claims
- 5037US4757219ALamination type of magnetostrictor and manufacturing method thereofHITACHI METALS LTD·Filed 1986·Granted Jul 12, 1988·6 cites·9 claims
Showing the top 50 of 53 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →