Inventor
ARITA YOSHIHIRO
JP28 patents
⚠️ This page may combine multiple inventors who share the name “ARITA YOSHIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON STEEL CORP
14 patentsUS7470333B2Dec 30, 2008
Non-oriented electrical steel sheet excellent in core loss and manufacturing method thereof
NIPPON STEEL CORP10 citations81
US12529129B2Jan 20, 2026
Hot-rolled steel sheet for non-oriented electrical steel sheet
NIPPON STEEL CORP0 citations61
US6425962B1Jul 30, 2002
Non-oriented electrical steel sheet excellent in permeability and method of producing the same
NIPPON STEEL CORP6 citations60
US12168809B2Dec 17, 2024
Hot-rolled steel sheet for non-oriented electrical steel sheet, non-oriented electrical steel sheet, and method for manufacturing same
NIPPON STEEL CORP0 citations59
US12592331B2Mar 31, 2026
Hot rolled steel sheet for non oriented electrical steel sheet and producing method thereof
NIPPON STEEL CORP0 citations52
US7566371B2Jul 28, 2009
Non-oriented electrical steel sheet excellent in magnetic properties in rolling direction and method of production of same
NIPPON STEEL CORP0 citations52
US12500016B2Dec 16, 2025
Non-oriented electrical steel sheet and manufacturing method therefor
NIPPON STEEL CORP0 citations51
US11952646B2Apr 9, 2024
Grain-oriented electrical steel sheet having excellent insulation coating adhesion without forsterite coating
NIPPON STEEL CORP0 citations51
US7214277B2May 8, 2007
Method for manufacturing non-oriented electrical steel sheet having high magnetic flux density
NIPPON STEEL CORP0 citations51
US12215401B2Feb 4, 2025
Grain-oriented electrical steel sheet
NIPPON STEEL CORP0 citations50
US12065713B2Aug 20, 2024
Grain-oriented electrical steel sheet
NIPPON STEEL CORP0 citations50
US12060630B2Aug 13, 2024
Grain-oriented electrical steel sheet
NIPPON STEEL CORP0 citations50
US12529118B2Jan 20, 2026
Hot rolled steel sheet for non oriented electrical steel sheet and producing method thereof
NIPPON STEEL CORP0 citations48
US12126220B2Oct 22, 2024
Rotor, method for designing rotor, and method for producing rotor
NIPPON STEEL CORP0 citations46
NIPPON CATALYTIC CHEM IND
10 patentsUS4880857ANov 14, 1989
Carbon black-graft polymer, method for production thereof, and use thereof
NIPPON CATALYTIC CHEM IND43 citations95
US4994520AFeb 19, 1991
Carbon black-graft polymer, method for production thereof, and use thereof
NIPPON CATALYTIC CHEM IND59 citations94
US5990226ANov 23, 1999
Aqueous resin composition and curing process
NIPPON CATALYTIC CHEM IND20 citations92
US5300602AApr 5, 1994
Process for producing water-soluble polymer and water-soluble polymer
NIPPON CATALYTIC CHEM IND29 citations91
US6248687B1Jun 19, 2001
Process for presulfurizing a desulfurization catalyst used in a hydrodesulfurization unit of petroleum refinery and presulfurization promoter
NIPPON CATALYTIC CHEM IND30 citations89
US5929202AJul 27, 1999
Method for production of ethylene sulfide/sulfur copolymer and ethylene sulfide/sulfur copolymer
NIPPON CATALYTIC CHEM IND17 citations83
US4940749AJul 10, 1990
Carbon black-graft polymer, method for production thereof, and use thereof
NIPPON CATALYTIC CHEM IND15 citations81
US5254664AOct 19, 1993
Curing composition
NIPPON CATALYTIC CHEM IND7 citations73
US5478912ADec 26, 1995
Process for producing modified polyaminoamide, modified polyaminoamide produced thereby, and epoxy resin curing agent comprising the said modified polyaminoamide
NIPPON CATALYTIC CHEM IND2 citations63
US6103102AAug 15, 2000
Method for improving the yield of lighter components in heat-refining process of petroleum heavy oil, and additive used in the method
NIPPON CATALYTIC CHEM IND0 citations49