Inventor
TAKEDA KAZUTOSHI
JP97 patents
⚠️ This page may combine multiple inventors who share the name “TAKEDA KAZUTOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
32 patentsUS5945212AAug 31, 1999
Insulating film treating agent having extremely excellent film characteristics and production method for non-oriented electrical steel sheet using the treating agent
NIPPON STEEL CORP33 citations90
US6461741B1Oct 8, 2002
Grain-oriented electromagnetic steel sheet with excellent coating properties and process for its manufacture
NIPPON STEEL CORP14 citations84
US6159534ADec 12, 2000
Method for producing non-oriented electromagnetic steel sheet having insulating film excellent in film properties
NIPPON STEEL CORP14 citations74
US11742129B2Aug 29, 2023
Adhesively-laminated core, manufacturing method thereof, and electric motor
NIPPON STEEL CORP2 citations73
US12074476B2Aug 27, 2024
Adhesively-laminated core for stator and electric motor
NIPPON STEEL CORP2 citations72
US11996231B2May 28, 2024
Laminated core and electric motor
NIPPON STEEL CORP2 citations72
US11749431B2Sep 5, 2023
Electrical steel sheet, laminated core, and laminated core manufacturing method
NIPPON STEEL CORP2 citations72
US11710990B2Jul 25, 2023
Laminated core with circumferentially spaced adhesion parts on teeth
NIPPON STEEL CORP2 citations70
US11279985B2Mar 22, 2022
Non-oriented electrical steel sheet
NIPPON STEEL CORP2 citations69
US12266971B2Apr 1, 2025
Adhesively-laminated core for stator, method of manufacturing the same, and electric motor
NIPPON STEEL CORP1 citations64
US11499055B2Nov 15, 2022
Coating solution for forming insulating film for grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet
NIPPON STEEL CORP0 citations63
US7850792B2Dec 14, 2010
Grain-oriented electrical steel sheet having insulating film not containing chromium and insulating film agent of same
NIPPON STEEL CORP6 citations63
US6383650B1May 7, 2002
Non-oriented electromagnetic steel sheet having insulating film excellent in film properties
NIPPON STEEL CORP5 citations63
US12421568B2Sep 23, 2025
Non-oriented electrical steel sheet and method of manufacturing the same
NIPPON STEEL CORP0 citations62
US12371599B2Jul 29, 2025
Coating composition for electrical steel sheet, adhesive surface-coated electrical steel sheet and laminated core
NIPPON STEEL CORP0 citations62
US12344759B2Jul 1, 2025
Coating composition for electrical steel sheet, electrical steel sheet, laminated core, and rotary electric machine
NIPPON STEEL CORP0 citations62
US12261482B2Mar 25, 2025
Laminated core and electric motor
NIPPON STEEL CORP0 citations62
US12215398B2Feb 4, 2025
Coating liquid for forming insulation coating for grain-oriented electrical steel sheets, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet
NIPPON STEEL CORP0 citations62
US12157921B2Dec 3, 2024
Coating liquid for forming insulation coating for grain-oriented electrical steel sheet, method of manufacturing grain-oriented electrical steel sheet, and grain-oriented electrical steel sheet
NIPPON STEEL CORP0 citations62
US12148555B2Nov 19, 2024
Non-oriented electrical steel sheet
NIPPON STEEL CORP1 citations62
US12104096B2Oct 1, 2024
Laminated core, laminated core manufacturing method, and electric motor
NIPPON STEEL CORP1 citations62
US12037511B2Jul 16, 2024
Coating composition for electrical steel sheet, surface-coated electrical steel sheet for adhesion and laminated core
NIPPON STEEL CORP0 citations62
US12033776B2Jul 9, 2024
Non-oriented electrical steel sheet and method for manufacturing same
NIPPON STEEL CORP0 citations62
US11866797B2Jan 9, 2024
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations62
US11855485B2Dec 26, 2023
Laminated core, method of manufacturing same, and electric motor
NIPPON STEEL CORP1 citations62
US7887646B2Feb 15, 2011
Oriented magnetic steel plate excellent in coating adhesion and method of production of same
NIPPON STEEL CORP5 citations62
US12424360B2Sep 23, 2025
Grain-oriented electrical steel sheet and method for manufacturing same
NIPPON STEEL CORP1 citations61
US12215399B2Feb 4, 2025
Non-oriented electrical steel sheet and method for producing same
NIPPON STEEL CORP0 citations61
US12084750B2Sep 10, 2024
Non-oriented electrical steel sheet and method for manufacturing same
NIPPON STEEL CORP0 citations61
US11535943B2Dec 27, 2022
Grain-oriented electrical steel sheet
NIPPON STEEL CORP0 citations61
US11053574B2Jul 6, 2021
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations61
US11021771B2Jun 1, 2021
Non-oriented electrical steel sheet and method for manufacturing non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations61
SEIKO INSTR & ELECTRONICS
4 patentsUS4376810AMar 15, 1983
Alkaline cell
SEIKO INSTR & ELECTRONICS21 citations82
US4144382AMar 13, 1979
Alkaline cell
SEIKO INSTR & ELECTRONICS22 citations78
US4520087AMay 28, 1985
Divalent silver oxide cell including cadmium and tellunium
SEIKO INSTR & ELECTRONICS17 citations71
US3977899AAug 31, 1976
Solid electrolyte cell
SEIKO INSTR & ELECTRONICS4 citations63
NIPPON STEEL & SUMITOMO METAL CORP
3 patentsUS10665372B2May 26, 2020
Electrical steel sheet and manufacturing method thereof
NIPPON STEEL & SUMITOMO METAL CORP4 citations71
US11295881B2Apr 5, 2022
Non-oriented electrical steel sheet, manufacturing method of non-oriented electrical steel sheet, and manufacturing method of motor core
NIPPON STEEL & SUMITOMO METAL CORP1 citations62
US10340065B2Jul 2, 2019
Method for manufacturing electrical steel sheet
NIPPON STEEL & SUMITOMO METAL CORP1 citations62
DAIFUKU KK
2 patentsSEIKO ELECTRONIC COMPONENTS
2 patentsHITACHI LTD
2 patentsSEIKO INSTR INC
1 patentTAKEDA KAZUTOSHI
1 patentHONDA MOTOR CO LTD
1 patentTAKAHASHI FUMIAKI
1 patentKITAGAWA IND CO LTD
1 patentShowing the top 50 of 97 patents by PatentIndex Score.