Inventor · disambiguated record
Hiroyasu Fujii
Also filed as: FUJII HIROYASU
52 granted patents·8 pending applications·235 citations·filing 1991–2024
97Inventor score
Files withNIPPON STEEL CORP44NIPPON STEEL & SUMITOMO METAL CORP8TAKEDA KAZUTOSHI2ARITA YOSHIHIRO1FUJII HIROYASU1
Top patents by PatentIndex Score
60 records- 0195US7471182B2Core having superior end face insulation and method of treating core end faces to give insulation coatingNIPPON STEEL CORP·Filed 2007·Granted Dec 30, 2008·38 cites·4 claims
- 0293US10610964B2Grain-oriented electrical steel sheet causing low core loss and low magnetostrictionNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Apr 7, 2020·3 cites·7 claims
- 0392US7736449B2High-strength hot-dip galvanized steel sheet and method for producing the sameNIPPON STEEL CORP·Filed 2007·Granted Jun 15, 2010·14 cites·10 claims
- 0487US11742129B2Adhesively-laminated core, manufacturing method thereof, and electric motorNIPPON STEEL CORP·Filed 2019·Granted Aug 29, 2023·2 cites·7 claims
- 0586US2025109452A1Coating liquid for forming insulation coating for grain-oriented electrical steel sheets, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2024·Application pending·0 cites
- 0685US7850792B2Grain-oriented electrical steel sheet having insulating film not containing chromium and insulating film agent of sameNIPPON STEEL CORP·Filed 2005·Granted Dec 14, 2010·6 cites·6 claims
- 0785US2025043373A1Coating liquid for forming insulation coating for grain-oriented electrical steel sheet, method of manufacturing grain-oriented electrical steel sheet, and grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2024·Application pending·0 cites
- 0884US5961744AGrain oriented silicon steel sheet having low core loss and method of manufacturing sameNIPPON STEEL CORP·Filed 1995·Granted Oct 5, 1999·34 cites·10 claims
- 0983US10665372B2Electrical steel sheet and manufacturing method thereofNIPPON STEEL & SUMITOMO METAL CORP·Filed 2018·Granted May 26, 2020·4 cites·6 claims
- 1082US7998284B2Grain-oriented electrical steel sheet having high tensile strength insulating film and method of treatment of such insulating filmNIPPON STEEL CORP·Filed 2007·Granted Aug 16, 2011·5 cites·7 claims
- 1182US5565272AGrain oriented silicon steel sheet having excellent primary film propertiesNIPPON STEEL CORP·Filed 1992·Granted Oct 15, 1996·39 cites·2 claims
- 1278US12104096B2Laminated core, laminated core manufacturing method, and electric motorNIPPON STEEL CORP·Filed 2019·Granted Oct 1, 2024·1 cites·14 claims
- 1377US11855485B2Laminated core, method of manufacturing same, and electric motorNIPPON STEEL CORP·Filed 2019·Granted Dec 26, 2023·1 cites·9 claims
- 1476US12157921B2Coating liquid for forming insulation coating for grain-oriented electrical steel sheet, method of manufacturing grain-oriented electrical steel sheet, and grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2019·Granted Dec 3, 2024·0 cites·4 claims
- 1576US6613160B2Method to produce grain-oriented electrical steel sheet having high magnetic flux densityNIPPON STEEL CORP·Filed 2001·Granted Sep 2, 2003·10 cites·6 claims
- 1675US12266971B2Adhesively-laminated core for stator, method of manufacturing the same, and electric motorNIPPON STEEL CORP·Filed 2019·Granted Apr 1, 2025·1 cites·5 claims
- 1774US11884988B2Base sheet for grain-oriented electrical steel sheet, grain-oriented silicon steel sheet which is used as material of base sheet for grain-oriented electrical steel sheet, method of manufacturing base sheet for grain-oriented electrical steel sheet, and method of manufacturing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted Jan 30, 2024·0 cites·18 claims
- 1874US7294412B2High-strength hop-dip galvanized steel sheetNIPPON STEEL CORP·Filed 2004·Granted Nov 13, 2007·12 cites·5 claims
- 1973US12215398B2Coating liquid for forming insulation coating for grain-oriented electrical steel sheets, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2019·Granted Feb 4, 2025·0 cites·11 claims
- 2073US7173509B2Core having superior end face insulation and method of treating core end faces to give insulation coatingNITTETSU PLANT DESIGNING CORP·Filed 2002·Granted Feb 6, 2007·12 cites·4 claims
- 2171US11189407B2Grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted Nov 30, 2021·0 cites·6 claims
- 2269US12033776B2Non-oriented electrical steel sheet and method for manufacturing sameNIPPON STEEL CORP·Filed 2022·Granted Jul 9, 2024·0 cites·9 claims
- 2369US11060159B2Grain-oriented electrical steel sheet and method of manufacturing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted Jul 13, 2021·0 cites·10 claims
- 2467US12378676B2Grain-oriented electrical steel sheet and manufacturing method of the sameNIPPON STEEL CORP·Filed 2020·Granted Aug 5, 2025·0 cites·5 claims
- 2565US11948710B2Non-oriented electrical steel sheet and method for producing sameNIPPON STEEL CORP·Filed 2022·Granted Apr 2, 2024·0 cites·8 claims
- 2663US12469625B2Non-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Nov 11, 2025·0 cites·6 claims
- 2763US12215399B2Non-oriented electrical steel sheet and method for producing sameNIPPON STEEL CORP·Filed 2020·Granted Feb 4, 2025·0 cites·10 claims
- 2863US12217889B2Grain-oriented electrical steel sheet, and steel sheet serving as base sheet for grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Feb 4, 2025·0 cites·15 claims
- 2962US11499055B2Coating solution for forming insulating film for grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted Nov 15, 2022·0 cites·8 claims
- 3062US11450460B2Grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted Sep 20, 2022·0 cites·5 claims
- 3162US11346005B2Grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted May 31, 2022·0 cites·9 claims
- 3261US8268097B2Grain-oriented electrical steel sheet and producing method thereforTAKAHASHI FUMIAKI·Filed 2009·Granted Sep 18, 2012·2 cites·13 claims
- 3360US12492477B2Non-oriented electrical steel sheet and surface treatment agent for non-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Dec 9, 2025·0 cites·4 claims
- 3460US10706998B2Electrical steel sheet and method for producing electrical steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Jul 7, 2020·0 cites·18 claims
- 3560US2024379265A1Non-oriented electrical steel sheet and manufacturing method thereforNIPPON STEEL CORP·Filed 2022·Application pending·0 cites
- 3659US6461741B1Grain-oriented electromagnetic steel sheet with excellent coating properties and process for its manufactureNIPPON STEEL CORP·Filed 2000·Granted Oct 8, 2002·14 cites·11 claims
- 3758US12359275B2Method for manufacturing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Jul 15, 2025·0 cites·11 claims
- 3858US12123068B2Grain oriented electrical steel sheet and producing method thereofNIPPON STEEL CORP·Filed 2018·Granted Oct 22, 2024·0 cites·16 claims
- 3958US9984801B2Electrical steel sheet and manufacturing method thereofTAKEDA KAZUTOSHI·Filed 2009·Granted May 29, 2018·2 cites·13 claims
- 4057US12334237B2Non-oriented electrical steel sheet and method for producing sameNIPPON STEEL CORP·Filed 2020·Granted Jun 17, 2025·0 cites·9 claims
- 4155US11332831B2Insulating coating for electrical steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted May 17, 2022·0 cites·2 claims
- 4255US6713187B2Grain-oriented silicon steel sheet excellent in adhesiveness to tension-creating insulating coating films and method for producing the sameNIPPON STEEL CORP·Filed 2002·Granted Mar 30, 2004·2 cites·4 claims
- 4354US12180558B2Method for manufacturing grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Dec 31, 2024·0 cites·11 claims
- 4454US11990795B2Adhesively-laminated core for stator, method of manufacturing same, and electric motorNIPPON STEEL CORP·Filed 2019·Granted May 21, 2024·0 cites·9 claims
- 4554US10519551B2Electrical steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Dec 31, 2019·0 cites·4 claims
- 4654US5509976AMethod for producing a grain-oriented electrical steel sheet having a mirror surface and improved core lossNIPPON STEEL CORP·Filed 1995·Granted Apr 23, 1996·9 cites·7 claims
- 4753US12365973B2Manufacturing method of grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Jul 22, 2025·0 cites·6 claims
- 4852US7364629B2Method for manufacturing grain-oriented silicon steel sheets with mirror-like surfaceNIPPON STEEL CORP·Filed 2003·Granted Apr 29, 2008·2 cites·8 claims
- 4952US2011108307A1Non-oriented electrical steel sheet and method of manufacturing the sameARITA YOSHIHIRO·Filed 2009·Application pending·0 cites
- 5051US10604848B2Electrical steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2015·Granted Mar 31, 2020·0 cites·2 claims
Showing the top 50 of 60 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →