Inventor
MURAKAWA TESSHU
JP21 patents
⚠️ This page may combine multiple inventors who share the name “MURAKAWA TESSHU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
17 patentsUS12009709B2Jun 11, 2024
Rotating electrical machine, stator core and rotor core set, method for manufacturing rotating electrical machine, method for manufacturing non-oriented electrical steel sheet, method for manufacturing rotor and stator of rotating electrical machine, and non-oriented electrical steel sheet set
NIPPON STEEL CORP2 citations71
US11279985B2Mar 22, 2022
Non-oriented electrical steel sheet
NIPPON STEEL CORP2 citations69
US12276004B2Apr 15, 2025
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations62
US11111567B2Sep 7, 2021
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations62
US12531461B2Jan 20, 2026
Rotating electrical machine, stator core and rotor core set, method for manufacturing rotating electrical machine, method for manufacturing non-oriented electrical steel sheet, method for manufacturing rotor and stator of rotating electrical machine, and non-oriented electrical steel sheet set
NIPPON STEEL CORP0 citations61
US12448663B2Oct 21, 2025
Method for manufacturing non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations51
US12211633B2Jan 28, 2025
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations51
US12195831B2Jan 14, 2025
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations51
US12451737B2Oct 21, 2025
Rotating electrical machine, stator core and rotor core set, method for manufacturing rotating electrical machine, method for manufacturing non-oriented electrical steel sheet for stator and non-oriented electrical steel sheet for rotor, method for manufacturing stator and rotor, and non-oriented electrical steel sheet set
NIPPON STEEL CORP0 citations50
US12381028B2Aug 5, 2025
Laminated core and electrical device
NIPPON STEEL CORP0 citations50
US12286694B2Apr 29, 2025
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations50
US12024762B2Jul 2, 2024
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations50
US11952641B2Apr 9, 2024
Non oriented electrical steel sheet
NIPPON STEEL CORP0 citations50
US11942246B2Mar 26, 2024
Non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations50
US12483075B2Nov 25, 2025
Stator core and rotary electric machine
NIPPON STEEL CORP0 citations48
US12283846B2Apr 22, 2025
Stator core, rotary electric machine, and design method for stator core
NIPPON STEEL CORP0 citations48
US12142966B2Nov 12, 2024
Rotor core, rotor, and rotating electric machine
NIPPON STEEL CORP0 citations48
NIPPON STEEL & SUMITOMO METAL CORP
2 patentsFUJIKURA MASAHIRO
2 patentsUS9512500B2Dec 6, 2016
Non-oriented electrical steel sheet, method of manufacturing the same, laminate for motor iron core, and method of manufacturing the same
FUJIKURA MASAHIRO1 citations44
US9721706B2Aug 1, 2017
Non-oriented electrical steel sheet, manufacturing method thereof, laminate for motor iron core, and manufacturing method thereof
FUJIKURA MASAHIRO0 citations33