Inventor · disambiguated record
Masuzo Yokoyama
Also filed as: KATOU TOKUO · YOKOYAMA MASUZO
11 granted patents·160 citations·filing 1977–1995
91Inventor score
Top patents by PatentIndex Score
11 records- 0181US4985495AResin compositionTOYOTA MOTOR CO LTD·Filed 1988·Granted Jan 15, 1991·33 cites·12 claims
- 0276US4563436ACatalyst component for α-olefin polymerization and method of producing the sameMITSUBISHI PETROCHEMICAL CO·Filed 1984·Granted Jan 7, 1986·23 cites·7 claims
- 0375US5037890AProcess for producing graft-modified α-olefin copolymerMITSUBISHI PETROCHEMICAL CO·Filed 1988·Granted Aug 6, 1991·21 cites·8 claims
- 0475US4146502AProcess for producing catalyst components for olefin polymerizationMITSUBISHI PETROCHEMICAL CO·Filed 1977·Granted Mar 27, 1979·22 cites·16 claims
- 0570US5527875AProcess for producing aromatic polycarbonateMITSUBISHI CHEM CORP·Filed 1995·Granted Jun 18, 1996·28 cites·22 claims
- 0652US5332788AProcess for producing graft-modified alpha-olefin copolymerMITSUBISHI PETROCHEMICAL CO·Filed 1992·Granted Jul 26, 1994·8 cites·7 claims
- 0751US5391691AProcess for producing aromatic polycarbonateMITSUBISHI PETROCHEMICAL CO·Filed 1993·Granted Feb 21, 1995·9 cites·19 claims
- 0842US5578694AProcess for producing aromatic polycarbonateMITSUBISHI CHEM CORP·Filed 1995·Granted Nov 26, 1996·8 cites·12 claims
- 0937US5250655AMelt preparation of polycarbonate with metal compound and p compound catalystsMITSUBISHI PETROCHEMICAL CO·Filed 1992·Granted Oct 5, 1993·4 cites·19 claims
- 1035US4151111AProcess for preparing titanium trichloride compositionsMITSUBISHI PETROCHEMICAL CO·Filed 1977·Granted Apr 24, 1979·2 cites·19 claims
- 1133US5137995AProcess for preparation of olefin polymersMITSUBISHI PETROCHEMICAL CO·Filed 1991·Granted Aug 11, 1992·2 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →