Inventor
ASAI MITSUKO
26 patents
⚠️ This page may combine multiple inventors who share the name “ASAI MITSUKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TAKEDA CHEMICAL INDUSTRIES LTD
25 patentsUS4294757AOct 13, 1981
20-O-Acylmaytansinoids
TAKEDA CHEMICAL INDUSTRIES LTD753 citations99
US4364866ADec 21, 1982
Maytansinoids
TAKEDA CHEMICAL INDUSTRIES LTD747 citations98
US4361650ANov 30, 1982
Fermentation process of preparing demethyl maytansinoids
TAKEDA CHEMICAL INDUSTRIES LTD755 citations98
US4322348AMar 30, 1982
Maytansinoids
TAKEDA CHEMICAL INDUSTRIES LTD779 citations98
US4307016ADec 22, 1981
Demethyl maytansinoids
TAKEDA CHEMICAL INDUSTRIES LTD751 citations98
US4151042AApr 24, 1979
Method for producing maytansinol and its derivatives
TAKEDA CHEMICAL INDUSTRIES LTD481 citations98
US4162940AJul 31, 1979
Method for producing Antibiotic C-15003 by culturing nocardia
TAKEDA CHEMICAL INDUSTRIES LTD33 citations96
US4360462ANov 23, 1982
Process for preparing maytansinol
TAKEDA CHEMICAL INDUSTRIES LTD19 citations82
US4225494ASep 30, 1980
Maytansinol esters
TAKEDA CHEMICAL INDUSTRIES LTD16 citations82
US4245047AJan 13, 1981
Antibiotics produced from the microorganism nocardia
TAKEDA CHEMICAL INDUSTRIES LTD6 citations74
US4187292AFeb 5, 1980
Antibiotics produced from the microorganism nocardice
TAKEDA CHEMICAL INDUSTRIES LTD9 citations74
US4518529AMay 21, 1985
Antibiotics C-19393S2
TAKEDA CHEMICAL INDUSTRIES LTD6 citations73
US4320200AMar 16, 1982
Antibiotic
TAKEDA CHEMICAL INDUSTRIES LTD10 citations73
US4229436AOct 21, 1980
Antibiotic G-6302
TAKEDA CHEMICAL INDUSTRIES LTD11 citations73
US4228239AOct 14, 1980
Method for producing antibiotic C-15003 P-3
TAKEDA CHEMICAL INDUSTRIES LTD16 citations73
US4108724AAug 22, 1978
Method for preparing antibiotic P-2563 using Pseudomonas fluorescens
TAKEDA CHEMICAL INDUSTRIES LTD8 citations72
US4315989AFeb 16, 1982
Biologically pure culture of the microorganism Nocardia ATCC31280
TAKEDA CHEMICAL INDUSTRIES LTD3 citations63
US4521432AJun 4, 1985
Physiologically active substance FA-5859, its derivative, their production and use
TAKEDA CHEMICAL INDUSTRIES LTD5 citations62
US4298600ANov 3, 1981
Antibiotic C-14482 A1 and method for producing same
TAKEDA CHEMICAL INDUSTRIES LTD2 citations62
US4292309ASep 29, 1981
Antibiotics C-14482 B1, B2 and B3
TAKEDA CHEMICAL INDUSTRIES LTD3 citations62
US4189472AFeb 19, 1980
Antibiotic C-11924 F-1
TAKEDA CHEMICAL INDUSTRIES LTD3 citations62
US4948534AAug 14, 1990
Derivatives of β-amino-γ-trimethylammonio-butyrate and their production and use
TAKEDA CHEMICAL INDUSTRIES LTD1 citations52
US4497742AFeb 5, 1985
Isomerization of β-lactam compounds
TAKEDA CHEMICAL INDUSTRIES LTD1 citations51
US4409147AOct 11, 1983
Carbapenem compounds and their production
TAKEDA CHEMICAL INDUSTRIES LTD1 citations51
US4373028AFeb 8, 1983
Culture of Nocardia ATCC 31309
TAKEDA CHEMICAL INDUSTRIES LTD1 citations51