Inventor · disambiguated record
Kazuo Hayatsu
Also filed as: HAYATSU KAZUO
17 granted patents·218 citations·filing 1977–2000
94Inventor score
Files withSUMITOMO CHEMICAL CO17
Top patents by PatentIndex Score
17 records- 0193US4454284AResin compositions containing polyphenylene oxide and olefin-glycidyl (meth)acrylate copolymerSUMITOMO CHEMICAL CO·Filed 1981·Granted Jun 12, 1984·58 cites·13 claims
- 0285US4294940AResin composition for electrocoatingSUMITOMO CHEMICAL CO·Filed 1980·Granted Oct 13, 1981·37 cites·10 claims
- 0372US4606930AMethod for treating fibersSUMITOMO CHEMICAL CO·Filed 1985·Granted Aug 19, 1986·25 cites·3 claims
- 0461US4542203AMethod for producing branched aromatic polyestersSUMITOMO CHEMICAL CO·Filed 1984·Granted Sep 17, 1985·13 cites·5 claims
- 0559US4871501AProcess for melt spinning aromatic polyesterSUMITOMO CHEMICAL CO·Filed 1987·Granted Oct 3, 1989·19 cites·4 claims
- 0656US5142017AAromatic polyester and a process for producing the sameSUMITOMO CHEMICAL CO·Filed 1990·Granted Aug 25, 1992·10 cites·6 claims
- 0756US5055546AProcess for producing aromatic polyestersSUMITOMO CHEMICAL CO·Filed 1989·Granted Oct 8, 1991·10 cites·7 claims
- 0856US4503005AProcess for producing an aromatic polyester fiberSUMITOMO CHEMICAL CO·Filed 1983·Granted Mar 5, 1985·8 cites·16 claims
- 0953US5015723AProcess for producing aromatic polyestersSUMITOMO CHEMICAL CO·Filed 1989·Granted May 14, 1991·10 cites·6 claims
- 1047US4560740AMethod for producing aromatic polyestersSUMITOMO CHEMICAL CO·Filed 1984·Granted Dec 24, 1985·7 cites·6 claims
- 1142US4143085AMethod for isolating low molecular weight polymerSUMITOMO CHEMICAL CO·Filed 1977·Granted Mar 6, 1979·5 cites·13 claims
- 1240US4865790AProcess for producing aromatic polyester fiberSUMITOMO CHEMICAL CO·Filed 1989·Granted Sep 12, 1989·4 cites·4 claims
- 1339US4778245AOptical communication cableSUMITOMO CHEMICAL CO·Filed 1985·Granted Oct 18, 1988·7 cites·1 claims
- 1438US6201102B1Method of producing an aromatic polyesterSUMITOMO CHEMICAL CO·Filed 2000·Granted Mar 13, 2001·0 cites·12 claims
- 1537US4713435AProcess for producing aromatic polyesterSUMITOMO CHEMICAL CO·Filed 1986·Granted Dec 15, 1987·3 cites·11 claims
- 1633US4775383AMethod of treating fiberSUMITOMO CHEMICAL CO·Filed 1986·Granted Oct 4, 1988·1 cites·5 claims
- 1730US4758242AMethod for treating polyester fibers having melt anistrophySUMITOMO CHEMICAL CO·Filed 1987·Granted Jul 19, 1988·1 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →