Inventor · disambiguated record
Yasuhiko Higashio
Also filed as: HIGASHIO YASUHIKO
13 granted patents·173 citations·filing 1975–1994
92Inventor score
Top patents by PatentIndex Score
13 records- 0193US4469907ASelective hydrogenation method for hydrocarbonsSUMITOMO CHEMICAL CO·Filed 1983·Granted Sep 4, 1984·47 cites·9 claims
- 0284US5017712AProduction of hydrocarbon-soluble salts of molybdenum for epoxidation of olefinsARCO CHEM TECH·Filed 1988·Granted May 21, 1991·43 cites·9 claims
- 0380US5059736AProcess for production of sec-butylbenzeneSUMITOMO CHEMICAL CO·Filed 1990·Granted Oct 22, 1991·19 cites·9 claims
- 0480US4593012AProduction of hydrocarbon-soluble salts of molybdenum for epoxidation of olefinsATLANTIC RICHFIELD CO·Filed 1985·Granted Jun 3, 1986·15 cites·12 claims
- 0572US4359365AMethod of purification of β-phenylethyl alcoholSUMITOMO CHEMICAL CO·Filed 1980·Granted Nov 16, 1982·10 cites·11 claims
- 0668US5362870AProcess for producing a high purity caprolactamSUMITOMO CHEMICAL CO·Filed 1993·Granted Nov 8, 1994·8 cites·5 claims
- 0757US5525725AProcess for producing a high purity caprolactamSUMITOMO CHEMICAL CO·Filed 1994·Granted Jun 11, 1996·4 cites·7 claims
- 0857US5304643AProcess for producing epsilon-caprolactamSUMITOMO CHEMICAL CO·Filed 1992·Granted Apr 19, 1994·13 cites·17 claims
- 0956US4684758AProduction of 2,5-dimethyl-2,4-hexadieneSUMITOMO CHEMICAL CO·Filed 1986·Granted Aug 4, 1987·5 cites·7 claims
- 1053US5459261AProcess for producing a high purity caprolactamSUMITOMO CHEMICAL CO·Filed 1994·Granted Oct 17, 1995·3 cites·4 claims
- 1146US5315039AMethod for inhibiting thermal decomposition of cycloalkanone oximesSUMITOMO CHEMICAL CO·Filed 1992·Granted May 24, 1994·3 cites·9 claims
- 1235US5191136AProcess for production of sec-butylbenzeneSUMITOMO CHEMICAL CO·Filed 1991·Granted Mar 2, 1993·3 cites·6 claims
- 1320US3991030AProcess for reducing viscosity of reaction solution containing graft copolymerSUMITOMO CHEMICAL CO INC·Filed 1975·Granted Nov 9, 1976·0 cites·7 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →