Inventor · disambiguated record
Kazutoshi Takeda
Also filed as: TAKEDA KAZUTOSHI
95 granted patents·40 pending applications·265 citations·filing 1974–2025
99Inventor score
Files withNIPPON STEEL CORP93NIPPON STEEL & SUMITOMO METAL CORP11TAKEDA KAZUTOSHI5SEIKO INSTR & ELECTRONICS4HITACHI LTD3
Top patents by PatentIndex Score
135 records- 0195US11749431B2Electrical steel sheet, laminated core, and laminated core manufacturing methodNIPPON STEEL CORP·Filed 2021·Granted Sep 5, 2023·2 cites·12 claims
- 0289US12424360B2Grain-oriented electrical steel sheet and method for manufacturing sameNIPPON STEEL CORP·Filed 2022·Granted Sep 23, 2025·1 cites·8 claims
- 0389US11279985B2Non-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted Mar 22, 2022·2 cites·6 claims
- 0487US11742129B2Adhesively-laminated core, manufacturing method thereof, and electric motorNIPPON STEEL CORP·Filed 2019·Granted Aug 29, 2023·2 cites·7 claims
- 0587US11295881B2Non-oriented electrical steel sheet, manufacturing method of non-oriented electrical steel sheet, and manufacturing method of motor coreNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Granted Apr 5, 2022·1 cites·11 claims
- 0686US2025109452A1Coating 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
- 0785US7850792B2Grain-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
- 0885US2025043373A1Coating 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
- 0984US12148555B2Non-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2019·Granted Nov 19, 2024·1 cites·8 claims
- 1084US12074476B2Adhesively-laminated core for stator and electric motorNIPPON STEEL CORP·Filed 2019·Granted Aug 27, 2024·2 cites·6 claims
- 1184US7887646B2Oriented magnetic steel plate excellent in coating adhesion and method of production of sameNIPPON STEEL CORP·Filed 2006·Granted Feb 15, 2011·5 cites·3 claims
- 1283US11710990B2Laminated core with circumferentially spaced adhesion parts on teethNIPPON STEEL CORP·Filed 2019·Granted Jul 25, 2023·2 cites·10 claims
- 1383US10665372B2Electrical steel sheet and manufacturing method thereofNIPPON STEEL & SUMITOMO METAL CORP·Filed 2018·Granted May 26, 2020·4 cites·6 claims
- 1482US11996231B2Laminated core and electric motorNIPPON STEEL CORP·Filed 2019·Granted May 28, 2024·2 cites·14 claims
- 1582US7998284B2Grain-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
- 1681US10340065B2Method for manufacturing electrical steel sheetNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Jul 2, 2019·1 cites·2 claims
- 1778US12104096B2Laminated core, laminated core manufacturing method, and electric motorNIPPON STEEL CORP·Filed 2019·Granted Oct 1, 2024·1 cites·14 claims
- 1877US11855485B2Laminated core, method of manufacturing same, and electric motorNIPPON STEEL CORP·Filed 2019·Granted Dec 26, 2023·1 cites·9 claims
- 1977US2025340964A1Forming method for insulation coating of grain oriented electrical steel sheetNIPPON STEEL CORP·Filed 2025·Application pending·0 cites
- 2076US12157921B2Coating 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
- 2175US12266971B2Adhesively-laminated core for stator, method of manufacturing the same, and electric motorNIPPON STEEL CORP·Filed 2019·Granted Apr 1, 2025·1 cites·5 claims
- 2275US9051622B2Non-oriented magnetic steel sheet and method for producing the sameARAI SATOSHI·Filed 2010·Granted Jun 9, 2015·1 cites·8 claims
- 2374US12084750B2Non-oriented electrical steel sheet and method for manufacturing sameNIPPON STEEL CORP·Filed 2022·Granted Sep 10, 2024·0 cites·8 claims
- 2474US5945212AInsulating film treating agent having extremely excellent film characteristics and production method for non-oriented electrical steel sheet using the treating agentNIPPON STEEL CORP·Filed 1997·Granted Aug 31, 1999·33 cites·8 claims
- 2573US12215398B2Coating 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
- 2672US12371599B2Coating composition for electrical steel sheet, adhesive surface-coated electrical steel sheet and laminated coreNIPPON STEEL CORP·Filed 2021·Granted Jul 29, 2025·0 cites·6 claims
- 2771US12479199B2Bonded and stacked core manufacturing method and bonded and stacked core manufacturing apparatusNIPPON STEEL CORP·Filed 2022·Granted Nov 25, 2025·0 cites·10 claims
- 2870US7733676B2Non-contact power supply system utilizing synchronized command signals to control and correct phase differences amongst power supply unitsDAIFUKU KK·Filed 2005·Granted Jun 8, 2010·13 cites·3 claims
- 2969US12473618B2Non-oriented electrical steel sheet and manufacturing method thereforNIPPON STEEL CORP·Filed 2022·Granted Nov 18, 2025·0 cites·7 claims
- 3069US12392004B2Grain oriented electrical steel sheet, forming method for insulation coating of grain oriented electrical steel sheet, and producing method for grain oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Aug 19, 2025·0 cites·6 claims
- 3169US12033776B2Non-oriented electrical steel sheet and method for manufacturing sameNIPPON STEEL CORP·Filed 2022·Granted Jul 9, 2024·0 cites·9 claims
- 3269US11866797B2Non-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2019·Granted Jan 9, 2024·0 cites·8 claims
- 3369US4144382AAlkaline cellSEIKO INSTR & ELECTRONICS·Filed 1976·Granted Mar 13, 1979·22 cites·6 claims
- 3468US12031191B2Grain-oriented electrical steel sheet and method for manufacturing sameNIPPON STEEL CORP·Filed 2019·Granted Jul 9, 2024·0 cites·2 claims
- 3568US6383650B1Non-oriented electromagnetic steel sheet having insulating film excellent in film propertiesNIPPON STEEL CORP·Filed 2000·Granted May 7, 2002·5 cites·1 claims
- 3667US12037511B2Coating composition for electrical steel sheet, surface-coated electrical steel sheet for adhesion and laminated coreNIPPON STEEL CORP·Filed 2021·Granted Jul 16, 2024·0 cites·13 claims
- 3767US11053574B2Non-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2018·Granted Jul 6, 2021·0 cites·5 claims
- 3867US4376810AAlkaline cellSEIKO INSTR & ELECTRONICS·Filed 1980·Granted Mar 15, 1983·21 cites·8 claims
- 3967US2024254602A1Grain-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2022·Application pending·0 cites
- 4066US10669432B2Electrical steel sheet and method of manufacturing the sameTAKEDA KAZUTOSHI·Filed 2011·Granted Jun 2, 2020·1 cites·1 claims
- 4166US9667125B2Production method of rotary electric machineHONDA MOTOR CO LTD·Filed 2014·Granted May 30, 2017·3 cites·2 claims
- 4265US12005487B2Method of manufacturing laminated coreNIPPON STEEL CORP·Filed 2021·Granted Jun 11, 2024·0 cites·16 claims
- 4365US11948710B2Non-oriented electrical steel sheet and method for producing sameNIPPON STEEL CORP·Filed 2022·Granted Apr 2, 2024·0 cites·8 claims
- 4464US12344759B2Coating composition for electrical steel sheet, electrical steel sheet, laminated core, and rotary electric machineNIPPON STEEL CORP·Filed 2021·Granted Jul 1, 2025·0 cites·6 claims
- 4564US7575800B2Sliding parts, precision parts and timepieces and electronic equipment using the sameKITAGAWA IND CO LTD·Filed 2002·Granted Aug 18, 2009·5 cites·6 claims
- 4664US2025026968A1Anaerobic curing adhesive composition, bonded laminated body, motor, and primer composition for anaerobic curingTOAGOSEI CO LTD·Filed 2022·Application pending·0 cites
- 4764US2025188561A1Non-oriented electrical steel sheet and method for producing sameNIPPON STEEL CORP·Filed 2023·Application pending·0 cites
- 4863US12469625B2Non-oriented electrical steel sheetNIPPON STEEL CORP·Filed 2020·Granted Nov 11, 2025·0 cites·6 claims
- 4963US12215399B2Non-oriented electrical steel sheet and method for producing sameNIPPON STEEL CORP·Filed 2020·Granted Feb 4, 2025·0 cites·10 claims
- 5063US7167420B2Timepiece including base plate formed of resin and wheel trainSEIKO INSTR INC·Filed 2002·Granted Jan 23, 2007·8 cites·14 claims
Showing the top 50 of 135 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →