Inventor · disambiguated record
Yasuyuki Hayakawa
Also filed as: HAYAKAWA YASUYUKI
42 granted patents·6 pending applications·249 citations·filing 1990–2023
97Inventor score
Top patents by PatentIndex Score
48 records- 0194US11066722B2Method of producing grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2017·Granted Jul 20, 2021·3 cites·4 claims
- 0290US8784995B2Grain oriented electrical steel sheet and method for manufacturing the sameOMURA TAKESHI·Filed 2011·Granted Jul 22, 2014·5 cites·2 claims
- 0390US7371291B2Grain-oriented magnetic steel sheet having no undercoat film comprising forsterite as primary component and having good magnetic characteristicsJFE STEEL CORP·Filed 2005·Granted May 13, 2008·7 cites·17 claims
- 0485US12325892B2Method for manufacturing a grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2022·Granted Jun 10, 2025·0 cites·4 claims
- 0584US9708682B2Production method for grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2013·Granted Jul 18, 2017·6 cites·5 claims
- 0683US5666842AMethod of cold rolling grain-oriented silicon steel sheet having excellent and uniform magnetic characteristics along rolling direction of coil and a roll cooling controller for cold rolling mill using the cold rolling methodKAWASAKI STEEL CO·Filed 1995·Granted Sep 16, 1997·21 cites·11 claims
- 0779US9574249B2Method for manufacturing grain oriented electrical steel sheetOMURA TAKESHI·Filed 2011·Granted Feb 21, 2017·4 cites·10 claims
- 0878US6811619B2Method of manufacturing grain-oriented electrical steel sheetsJFE STEEL CORP·Filed 2002·Granted Nov 2, 2004·12 cites·31 claims
- 0978US6436199B1Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method thereforKAWASAKI STEEL CO·Filed 2000·Granted Aug 20, 2002·10 cites·7 claims
- 1077US6309473B1Method of making grain-oriented magnetic steel sheet having low iron lossKAWASAKI STEEL CO·Filed 1999·Granted Oct 30, 2001·17 cites·7 claims
- 1176US6942740B2Grain-oriented magnetic steel sheet having no undercoat film comprising forsterite as primary component and having good magnetic characteristicsJFE STEEL CORP·Filed 2002·Granted Sep 13, 2005·8 cites·10 claims
- 1276US6562473B1Electrical steel sheet suitable for compact iron core and manufacturing method thereforKAWASAKI STEEL CO·Filed 2000·Granted May 13, 2003·34 cites·24 claims
- 1375US11560603B2Grain-oriented electrical steel sheet and method for manufacturing sameJFE STEEL CORP·Filed 2017·Granted Jan 24, 2023·0 cites·4 claims
- 1474US11198917B2Method for nitriding grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2018·Granted Dec 14, 2021·0 cites·7 claims
- 1573US6322635B1Electromagnetic steel sheet and process for producing the sameKAWASAKI STEEL CO·Filed 1999·Granted Nov 27, 2001·15 cites·9 claims
- 1671US5342454AMethod of producing grain oriented silicon steel sheet having low iron lossKAWASAKI STEEL CO·Filed 1992·Granted Aug 30, 1994·16 cites·15 claims
- 1767US2015354051A1Apparatus and method for nitriding grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2014·Application pending·0 cites
- 1866US10214793B2Method and device for nitriding grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2014·Granted Feb 26, 2019·0 cites·7 claims
- 1965US2025222401A1Carbon dioxide fixation apparatus and method for fixing carbon dioxideNIPPON CONCRETE IND CO LTD·Filed 2023·Application pending·0 cites
- 2064US9748028B2Method for producing grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2013·Granted Aug 29, 2017·1 cites·6 claims
- 2164US6423157B2Method of making grain-oriented magnetic steel sheet having low iron lossKAWASAKI STEEL CO·Filed 2001·Granted Jul 23, 2002·4 cites·3 claims
- 2264US5330586AMethod of producing grain oriented silicon steel sheet having very excellent magnetic propertiesKAWASAKI STEEL CO·Filed 1992·Granted Jul 19, 1994·12 cites·4 claims
- 2363US9905343B2Production method for grain-oriented electrical steel sheet and primary recrystallized steel sheet for production of grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2013·Granted Feb 27, 2018·1 cites·2 claims
- 2460US7465361B2Method for producing grain oriented magnetic steel sheet and grain oriented magnetic steel sheetJFE STEEL CORP·Filed 2003·Granted Dec 16, 2008·4 cites·9 claims
- 2560US5244511AMethod of manufacturing an oriented silicon steel sheet having improved magnetic flux densityKAWASAKI STEEL CO·Filed 1993·Granted Sep 14, 1993·13 cites·7 claims
- 2659US5571342ADecarburized steel sheet for thin oriented silicon steel sheet having improved coating/magnetic characteristics and method of producing the sameKAWASAKI STEEL CO·Filed 1993·Granted Nov 5, 1996·10 cites·2 claims
- 2754US11091842B2Oriented electromagnetic steel sheet and method for manufacturing oriented electromagnetic steel sheetJFE STEEL CORP·Filed 2017·Granted Aug 17, 2021·0 cites·21 claims
- 2854US10066286B2Apparatus and method for nitriding grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2014·Granted Sep 4, 2018·0 cites·13 claims
- 2954US9978489B2Method of producing grain oriented electrical steel sheetJFE STEEL CORP·Filed 2014·Granted May 22, 2018·0 cites·10 claims
- 3053US6676771B2Method of manufacturing grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2002·Granted Jan 13, 2004·2 cites·14 claims
- 3152USRE39482EMethod of making grain-oriented magnetic steel sheet having low iron lossJFE STEEL CORP·Filed 2002·Granted Feb 6, 2007·2 cites·7 claims
- 3252US5181972AProcess for producing grain oriented silicon steel sheets having excellent magnetic propertiesKAWASAKI STEEL CO·Filed 1990·Granted Jan 26, 1993·8 cites·5 claims
- 3352US2023097969A1Method for producing phosphate diester or phosphate triesterUNIV SAGA·Filed 2020·Application pending·0 cites
- 3450US11332801B2Method of producing grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2017·Granted May 17, 2022·0 cites·4 claims
- 3550US10844452B2Grain-oriented electrical steel sheet and method for manufacturing the sameJFE STEEL CORP·Filed 2016·Granted Nov 24, 2020·0 cites·2 claims
- 3650US6531001B2Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method thereforKAWASAKI STEEL CO·Filed 2002·Granted Mar 11, 2003·1 cites·13 claims
- 3748US6432227B1Electromagnetic steel sheet and process for producing the sameKAWASAKI STEEL CO·Filed 2001·Granted Aug 13, 2002·0 cites·4 claims
- 3848US5127971AMethod of producing grain oriented silicon steel sheets having improved magnetic properties and bending properties by electrolytic degreasingKAWASAKI STEEL CO·Filed 1991·Granted Jul 7, 1992·8 cites·4 claims
- 3947US7063657B2Method of constructing underground gallery by using pneumatic transfer system and stratum disposal methodKAJIMA CORP·Filed 2002·Granted Jun 20, 2006·5 cites·8 claims
- 4045US10428403B2Method for manufacturing grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2015·Granted Oct 1, 2019·0 cites·6 claims
- 4145US5306353AMethod of producing grain oriented silicon steel sheets having less iron lossKAWASAKI STEEL CO·Filed 1992·Granted Apr 26, 1994·6 cites·9 claims
- 4242US5173128AMethod of producing oriented silicon steel sheet having very high magnetic flux densityKAWASAKI STEEL CO·Filed 1991·Granted Dec 22, 1992·5 cites·10 claims
- 4341US5318639AMethod of manufacturing grain oriented silicon steel sheetsKAWASAKI STEEL CO·Filed 1992·Granted Jun 7, 1994·5 cites·10 claims
- 4441US2018037966A1Grain-oriented electrical steel sheet and method for producing sameJFE STEEL CORP·Filed 2015·Application pending·0 cites
- 4540US11459629B2Method of producing grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2017·Granted Oct 4, 2022·0 cites·7 claims
- 4639US5269853ADecarburized steel sheet for thin oriented silicon steel sheet having improved coating/magnetic characteristics and method of producing the sameKAWASAKI STEEL CO·Filed 1993·Granted Dec 14, 1993·4 cites·4 claims
- 4739US2019112685A1Method of producing grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2016·Application pending·0 cites
- 4838US2017240988A1Method of manufacturing grain-oriented electrical steel sheetJFE STEEL CORP·Filed 2015·Application pending·0 cites
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