Inventor · disambiguated record
Yoshihiko Kitagawa
Also filed as: KITAGAWA YOSHIHIKO · KUDO KEN-ICHI
15 granted patents·6 pending applications·164 citations·filing 1975–2021
92Inventor score
Top patents by PatentIndex Score
21 records- 0188US4522955AHighly foamed polypropylene product and an extrusion process for forming the productSUMITOMO CHEMICAL CO·Filed 1982·Granted Jun 11, 1985·44 cites·6 claims
- 0283US4344906AProcess for producing glass fiber-reinforced transparent cast sheetSUMITOMO CHEMICAL CO·Filed 1981·Granted Aug 17, 1982·34 cites·12 claims
- 0383US4287317AContinuous process for producing rubber-modified methyl methacrylate syrupsSUMITOMO CHEMICAL CO·Filed 1980·Granted Sep 1, 1981·37 cites·10 claims
- 0476US10562134B2Flux-cored wire for gas-shielded arc weldingKOBE STEEL LTD·Filed 2016·Granted Feb 18, 2020·1 cites·12 claims
- 0572US9592575B2Weld metal having excellent resistance to hydrogen embrittlement susceptibilityNAKO HIDENORI·Filed 2012·Granted Mar 14, 2017·1 cites·20 claims
- 0664US11691227B2Solid wire for electroslag welding, and welding jointKOBE STEEL LTD·Filed 2019·Granted Jul 4, 2023·0 cites·10 claims
- 0763US9956650B2Weld metal having excellent resistance to hydrogen embrittlementKOBE STEEL LTD·Filed 2013·Granted May 1, 2018·1 cites·14 claims
- 0861US2024009779A1Flux-cored wireKOBE STEEL LTD·Filed 2021·Application pending·0 cites
- 0957US4039733ANovel petroleum resin formed by a catalyst system containing (a) organoaluminum compound and (b) alkyl halide or hydrogen halide as cocatalystSUMITOMO CHEMICAL CO·Filed 1975·Granted Aug 2, 1977·9 cites·16 claims
- 1055US4038474AProcess for preparing novel petroleum resin employing AlRX2 and alkyl halide or hydrogen halideSUMITOMO CHEMICAL CO·Filed 1975·Granted Jul 26, 1977·8 cites·15 claims
- 1155US2022016734A1Ni-BASED ALLOY FLUX-CORED WIREKOBE STEEL LTD·Filed 2020·Application pending·0 cites
- 1251US4156762AProcess for producing light-colored clear petroleum resinsSUMITOMO CHEMICAL CO·Filed 1978·Granted May 29, 1979·7 cites·7 claims
- 1351US2015314400A1Weld metal with excellent resistance to hydrogen embrittlement, and solid wire for submerged arc weldingKOBE STEEL LTD·Filed 2014·Application pending·0 cites
- 1451US2016008931A1Weld metal and welded structure provided with sameKOBE STEEL LTD·Filed 2014·Application pending·0 cites
- 1550US4228266AProcess for producing copolymerized resinsSUMITOMO CHEMICAL CO·Filed 1978·Granted Oct 14, 1980·5 cites·10 claims
- 1648US10427249B2Flux-cored wire for gas-shielded arc weldingKOBE STEEL LTD·Filed 2016·Granted Oct 1, 2019·0 cites·10 claims
- 1746US9718150B2Weld metal excellent in hydrogen embrittlement resistanceNAKO HIDENORI·Filed 2012·Granted Aug 1, 2017·0 cites·18 claims
- 1846US4008360AProcess for producing petroleum resinSUMITOMO CHEMICAL CO·Filed 1975·Granted Feb 15, 1977·8 cites·10 claims
- 1944US2018147674A1Welded metal and welded structureKOBE STEEL LTD·Filed 2016·Application pending·0 cites
- 2039US5496863AMethod of crosslinking rubber and plastic moldingsSUMITOMO CHEMICAL CO·Filed 1991·Granted Mar 5, 1996·9 cites·12 claims
- 2139US2017274482A1Flux-cored wire for gas-shielded arc weldingKOBE STEEL LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →