Inventor
NAKATSUKA IWAO
JP14 patents
⚠️ This page may combine multiple inventors who share the name “NAKATSUKA IWAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO CHEMICAL CO
13 patentsUS3992371ANov 16, 1976
Penicillins substituted with heterocyclic and substituted phenyl groups
SUMITOMO CHEMICAL CO33 citations92
US3954733AMay 4, 1976
Naphthyridine-3-carboxamido-benzylpenicillins and salts thereof
SUMITOMO CHEMICAL CO33 citations92
US3945995AMar 23, 1976
D-α-(4-hydroxypyridine-3-carbonamido)-p-hydroxyphenylacetamidopenicillanic acid
SUMITOMO CHEMICAL CO20 citations79
US4008220AFeb 15, 1977
Penicillins
SUMITOMO CHEMICAL CO9 citations73
US4005075AJan 25, 1977
Penicillins and their preparation
SUMITOMO CHEMICAL CO17 citations73
US5821062AOct 13, 1998
Oligonucleotide for use in checking presence or absence of mutation in human-derived cytochrome P450IIC18 gene
SUMITOMO CHEMICAL CO5 citations62
US4687852AAug 18, 1987
Radioactive iodospiroperidol
SUMITOMO CHEMICAL CO2 citations62
US6620593B1Sep 16, 2003
Method for safety evaluation of chemical compound using recombinant yeast expressing human cytochrome P450
SUMITOMO CHEMICAL CO3 citations61
US4885152ADec 5, 1989
Radioactive benzodiazepine derivatives
SUMITOMO CHEMICAL CO2 citations58
US4003887AJan 18, 1977
Novel penicillins and their preparation
SUMITOMO CHEMICAL CO1 citations51
US4008237AFeb 15, 1977
2,3,5,8-Tetrahydro-5-alkoxy-8-oxofuro(2,3-g)quinoline-7-carboxylic acid derivatives
SUMITOMO CHEMICAL CO1 citations50
US5216147AJun 1, 1993
Radioactive benzodiazepine derivatives
SUMITOMO CHEMICAL CO0 citations48
US4945162AJul 31, 1990
Novel radioactive propyl 2-iodospiroperidol and processes for the preparation thereof
SUMITOMO CHEMICAL CO1 citations48