Inventor · disambiguated record
Teruhisa Koyama
Also filed as: KOYAMA TERUHISA
10 granted patents·116 citations·filing 1977–1993
90Inventor score
Files withSUMITOMO CHEMICAL CO10
Top patents by PatentIndex Score
10 records- 0184US4129557AProcess for producing copolymerized resinsSUMITOMO CHEMICAL CO·Filed 1977·Granted Dec 12, 1978·27 cites·20 claims
- 0277US4686257APolypropylene resin composition containing fillerSUMITOMO CHEMICAL CO·Filed 1986·Granted Aug 11, 1987·27 cites·8 claims
- 0354US4604421APolypropylene resin composition comprising talc having specified average diameter and particle sizeSUMITOMO CHEMICAL CO·Filed 1985·Granted Aug 5, 1986·12 cites·4 claims
- 0451US5324781AMethacrylate resin compositionSUMITOMO CHEMICAL CO·Filed 1993·Granted Jun 28, 1994·12 cites·6 claims
- 0550US4965321AThermoplastic copolymerSUMITOMO CHEMICAL CO·Filed 1988·Granted Oct 23, 1990·9 cites·9 claims
- 0650US4228266AProcess for producing copolymerized resinsSUMITOMO CHEMICAL CO·Filed 1978·Granted Oct 14, 1980·5 cites·10 claims
- 0749US5157062AThermoplastic resin compositionSUMITOMO CHEMICAL CO·Filed 1991·Granted Oct 20, 1992·7 cites·15 claims
- 0844US5236911AMethacrylic resin compositionSUMITOMO CHEMICAL CO·Filed 1991·Granted Aug 17, 1993·8 cites·5 claims
- 0937US5248725AThermoplastic resin compositionSUMITOMO CHEMICAL CO·Filed 1991·Granted Sep 28, 1993·5 cites·15 claims
- 1036US5081186AThermoplastic olefin resin compositionSUMITOMO CHEMICAL CO·Filed 1989·Granted Jan 14, 1992·4 cites·34 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →