Inventor · disambiguated record
Takuzo Okumura
Also filed as: OKUMURA TAKUZO
9 granted patents·285 citations·filing 1977–1988
91Inventor score
Files withSUMITOMO CHEMICAL CO9
Top patents by PatentIndex Score
9 records- 0193US4859039ALight-polarizing filmSUMITOMO CHEMICAL CO·Filed 1985·Granted Aug 22, 1989·91 cites·7 claims
- 0288US4522955AHighly foamed polypropylene product and an extrusion process for forming the productSUMITOMO CHEMICAL CO·Filed 1982·Granted Jun 11, 1985·44 cites·6 claims
- 0373US4953952AColor liquid crystal displaying panelsSUMITOMO CHEMICAL CO·Filed 1988·Granted Sep 4, 1990·35 cites·6 claims
- 0473US4564545ALight-polarizing plate having excellent durability and production of the sameSUMITOMO CHEMICAL CO·Filed 1984·Granted Jan 14, 1986·25 cites·2 claims
- 0572US4803014ALight-polarizing filmSUMITOMO CHEMICAL CO·Filed 1986·Granted Feb 7, 1989·23 cites·11 claims
- 0666US4883717AVibration-damping materialSUMITOMO CHEMICAL CO·Filed 1987·Granted Nov 28, 1989·37 cites·36 claims
- 0758US4895677ALight-polarizing filmSUMITOMO CHEMICAL CO·Filed 1988·Granted Jan 23, 1990·14 cites·1 claims
- 0845US4120931AMethod of manufacturing oriented amorphous aromatic polymeric filmsSUMITOMO CHEMICAL CO·Filed 1977·Granted Oct 17, 1978·9 cites·28 claims
- 0940US4626304AMethod of making a light-polarizing plateSUMITOMO CHEMICAL CO·Filed 1985·Granted Dec 2, 1986·7 cites·6 claims
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