Inventor
SAGIYAMA MASARU
JP16 patents
⚠️ This page may combine multiple inventors who share the name “SAGIYAMA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NIPPON KOKAN KK
15 patentsUS6562474B1May 13, 2003
Coated steel sheet having excellent corrosion resistance and method for producing the same
NIPPON KOKAN KK97 citations97
US6509099B1Jan 21, 2003
Phosphate-treated steel plate
NIPPON KOKAN KK47 citations92
US4543300ASep 24, 1985
Iron-zinc alloy electro-galvanized steel sheet having a plurality of iron-zinc alloy coatings
NIPPON KOKAN KK32 citations88
US6280535B2Aug 28, 2001
Manufacturing process on chromate-coated lead-containing galvanized steel sheet with anti-black patina property and anti-white rust property
NIPPON KOKAN KK12 citations73
US5518769AMay 21, 1996
Process for manufacturing galvannealed steel sheet having excellent anti-powdering property
NIPPON KOKAN KK8 citations73
US5409553AApr 25, 1995
Process for manufacturing galvannealed steel sheets having high press-formability and anti-powdering property
NIPPON KOKAN KK9 citations73
US6129995AOct 10, 2000
Zinciferous coated steel sheet and method for producing the same
NIPPON KOKAN KK8 citations72
US6136455AOct 24, 2000
Coating composition for precoated steel sheet, precoated steel sheet, and process for preparing the same
NIPPON KOKAN KK12 citations71
US4929324AMay 29, 1990
Apparatus for removing electroplating metal deposited onto surface of conductor roll
NIPPON KOKAN KK7 citations68
US5316652AMay 31, 1994
Method for manufacturing iron-zinc alloy plated steel sheet having two plating layers and excellent in electropaintability and pressformability
NIPPON KOKAN KK6 citations62
US5225067AJul 6, 1993
Method for manufacturing iron-zinc alloy plated steel sheet having two plating layers and excellent in electropaintability and press-formability
NIPPON KOKAN KK6 citations62
US4904545AFeb 27, 1990
Composite electroplated steel sheet
NIPPON KOKAN KK4 citations61
US4601801AJul 22, 1986
Vertical type electro-galvanizing apparatus
NIPPON KOKAN KK2 citations61
US5006420AApr 9, 1991
Electroplated steel sheet having a plurality of coatings, excellent in workability, corrosion resistance and water-resistant paint adhesivity
NIPPON KOKAN KK2 citations60
US5202012AApr 13, 1993
Method for manufacturing zinciferous electroplated steel sheet excellent in press-formability
NIPPON KOKAN KK1 citations51