Inventor · disambiguated record
Iwao Nakatsuka
Also filed as: NAKATSUKA IWAO
14 granted patents·1 pending application·137 citations·filing 1973–2002
91Inventor score
Top patents by PatentIndex Score
15 records- 0194US3992371APenicillins substituted with heterocyclic and substituted phenyl groupsSUMITOMO CHEMICAL CO·Filed 1974·Granted Nov 16, 1976·33 cites·25 claims
- 0294US3954733ANaphthyridine-3-carboxamido-benzylpenicillins and salts thereofSUMITOMO CHEMICAL CO·Filed 1973·Granted May 4, 1976·33 cites·18 claims
- 0389US3945995AD-α-(4-hydroxypyridine-3-carbonamido)-p-hydroxyphenylacetamidopenicillanic acidSUMITOMO CHEMICAL CO·Filed 1974·Granted Mar 23, 1976·20 cites·1 claims
- 0488US4005075APenicillins and their preparationSUMITOMO CHEMICAL CO·Filed 1975·Granted Jan 25, 1977·17 cites·4 claims
- 0578US4008220APenicillinsSUMITOMO CHEMICAL CO·Filed 1974·Granted Feb 15, 1977·9 cites·20 claims
- 0650US4687852ARadioactive iodospiroperidolSUMITOMO CHEMICAL CO·Filed 1984·Granted Aug 18, 1987·2 cites·4 claims
- 0748US4541957AProcess for preparing iodovinyl-estradiolUNIV GEORGE WASHINGTON·Filed 1983·Granted Sep 17, 1985·10 cites·10 claims
- 0842US4008237A2,3,5,8-Tetrahydro-5-alkoxy-8-oxofuro(2,3-g)quinoline-7-carboxylic acid derivativesSUMITOMO CHEMICAL CO·Filed 1975·Granted Feb 15, 1977·1 cites·2 claims
- 0940US5821062AOligonucleotide for use in checking presence or absence of mutation in human-derived cytochrome P450IIC18 geneSUMITOMO CHEMICAL CO·Filed 1995·Granted Oct 13, 1998·5 cites·24 claims
- 1039US4003887ANovel penicillins and their preparationSUMITOMO CHEMICAL CO·Filed 1975·Granted Jan 18, 1977·1 cites·13 claims
- 1135US6620593B1Method for safety evaluation of chemical compound using recombinant yeast expressing human cytochrome P450SUMITOMO CHEMICAL CO·Filed 1994·Granted Sep 16, 2003·3 cites·14 claims
- 1232US4885152ARadioactive benzodiazepine derivativesSUMITOMO CHEMICAL CO·Filed 1988·Granted Dec 5, 1989·2 cites·6 claims
- 1330US5216147ARadioactive benzodiazepine derivativesSUMITOMO CHEMICAL CO·Filed 1989·Granted Jun 1, 1993·0 cites·16 claims
- 1430US4945162ANovel radioactive propyl 2-iodospiroperidol and processes for the preparation thereofSUMITOMO CHEMICAL CO·Filed 1987·Granted Jul 31, 1990·1 cites·2 claims
- 1530US2002156301A1Triphenylmethane derivatives and use thereofSUMITOMO CHEMICAL CO·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →