Inventor · disambiguated record
Fumio Toda
Also filed as: TODA FUMIO
21 granted patents·206 citations·filing 1983–1996
95Inventor score
Files withDAICEL CHEM5KURITA WATER IND LTD4UBE INDUSTRIES3SUMITOMO CHEMICAL CO2JAPAN HYDRAZINE CO LTD1
Top patents by PatentIndex Score
21 records- 0196US4898654AMethod of producing optically active β-lactam derivativesOTSUKA KAGAKU KK·Filed 1989·Granted Feb 6, 1990·71 cites·6 claims
- 0288US4467102AOptically active propargyl alcohol derivative and a method for preparation of the sameUBE INDUSTRIES·Filed 1983·Granted Aug 21, 1984·25 cites·16 claims
- 0385US4841081AMethod of optically resolving a racemate or a diastereomeric mixture of glycidyl compoundOSAKA SODA CO LTD·Filed 1986·Granted Jun 20, 1989·22 cites·18 claims
- 0475US4918190ACrystalline complex compounds of propargyl alcohols and tertiary diamines, and process of separation and purification of propargyl alcohols using the sameUBE INDUSTRIES·Filed 1987·Granted Apr 17, 1990·10 cites·10 claims
- 0575US4644021ASustained release antimicrobial agents and methods of fouling control using the sameKURITA WATER IND LTD·Filed 1985·Granted Feb 17, 1987·17 cites·12 claims
- 0666US4785111AN-cyclohexyl-polycarboxamide compound and derivatives thereofMITSUBISHI CORP·Filed 1986·Granted Nov 15, 1988·7 cites·11 claims
- 0765US5276214AOptically active biphenyl derivative and process for optical resolutionDAICEL CHEM·Filed 1992·Granted Jan 4, 1994·7 cites·7 claims
- 0859US5091400AClathrate compoundKURITA WATER IND LTD·Filed 1990·Granted Feb 25, 1992·6 cites·2 claims
- 0953US4962274AProcess for separating alkyl-substituted naphthalene derivatives using clathrate complexesKUREHA CHEMICAL IND CO LTD·Filed 1989·Granted Oct 9, 1990·4 cites·4 claims
- 1052US4976834AAsymmetric photochemical reaction processDAICEL CHEM·Filed 1988·Granted Dec 11, 1990·3 cites·11 claims
- 1147US4780317ASustained release antimicrobial agents and method of fouling control using the sameKURITA WATER IND LTD·Filed 1987·Granted Oct 25, 1988·13 cites·22 claims
- 1245US5395985ACompound and separating agentDAICEL CHEM·Filed 1993·Granted Mar 7, 1995·2 cites·4 claims
- 1340US5202504AOptically active biphenyl derivative and process for optical resolutionDAICEL CHEM·Filed 1991·Granted Apr 13, 1993·3 cites·10 claims
- 1440US4818771ADiphenic acid bis(dicyclohexylamide) for clothrate compound, process for producing the sameKURITA WATER IND LTD·Filed 1986·Granted Apr 4, 1989·7 cites·7 claims
- 1539US5334776ACompound and separating agentDAICEL CHEM·Filed 1992·Granted Aug 2, 1994·1 cites·5 claims
- 1638US5618978AMethod of producing choline of a high purityJAPAN HYDRAZINE CO LTD·Filed 1996·Granted Apr 8, 1997·4 cites·5 claims
- 1738US5306844ATartaric acid amide derivative and method of producing the sameMITSUBISHI GAS CHEMICAL CO·Filed 1990·Granted Apr 26, 1994·1 cites·16 claims
- 1837US5041620AMethod for producing optically active 2-cyclopenten-4-one-1-ol esters, 2-cyclopenteno-4-one-1-ol ester and complexes thereof with optically active 1,6-diphenyl-2,4-hexadiyne-1,6-diolSUMITOMO CHEMICAL CO·Filed 1986·Granted Aug 20, 1991·1 cites·43 claims
- 1933US5043495AProcess of separation and purification of a propargyl alcoholsUBE INDUSTRIES·Filed 1990·Granted Aug 27, 1991·1 cites·13 claims
- 2032US4769502AAlkynol type compounds and alcohol-separating processTODA FUMIO·Filed 1987·Granted Sep 6, 1988·1 cites·9 claims
- 2125US5395977AProcess for producing optical active 4-hydroxy-2-cyclopentenoneSUMITOMO CHEMICAL CO·Filed 1993·Granted Mar 7, 1995·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →