Inventor
KAWANO YASUHIKO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “KAWANO YASUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TAKEDA CHEMICAL INDUSTRIES LTD
14 patentsUS6924292B2Aug 2, 2005
Furoisoquinoline derivatives, process for producing the same and use thereof
TAKEDA CHEMICAL INDUSTRIES LTD52 citations92
US5389633AFeb 14, 1995
Triazolopyridazine compounds, their production and use
TAKEDA CHEMICAL INDUSTRIES LTD29 citations92
US6627630B1Sep 30, 2003
Condensed pyridazine derivatives, their production and use
TAKEDA CHEMICAL INDUSTRIES LTD31 citations90
US6248740B1Jun 19, 2001
Condensed pyridazine derivatives, their production and use
TAKEDA CHEMICAL INDUSTRIES LTD17 citations81
US5491145AFeb 13, 1996
Imidazopyridazines, their production and use
TAKEDA CHEMICAL INDUSTRIES LTD10 citations73
US4851422AJul 25, 1989
Antibiotic 2-(3-oxo-2-isoxazolidinyl)-5-oxo-2-tetrahydrofuran-carboxylates
TAKEDA CHEMICAL INDUSTRIES LTD11 citations73
US4751299AJun 14, 1988
Optically active β-lactams and method of their production
TAKEDA CHEMICAL INDUSTRIES LTD21 citations72
US6610694B1Aug 26, 2003
Condensed pyridazine compounds, their production and use
TAKEDA CHEMICAL INDUSTRIES LTD12 citations71
US4105670AAug 8, 1978
Spiro[cyclopropane-1,2'-indolin]-3'-ones
TAKEDA CHEMICAL INDUSTRIES LTD7 citations68
US5369104ANov 29, 1994
Pyridazine compounds, their production and use
TAKEDA CHEMICAL INDUSTRIES LTD6 citations62
US4183859AJan 15, 1980
Thenoylindan derivatives
TAKEDA CHEMICAL INDUSTRIES LTD0 citations52
US5482939AJan 9, 1996
Triazolopyridazine compounds, their production and use
TAKEDA CHEMICAL INDUSTRIES LTD1 citations51
US3992370ANov 16, 1976
1,1-Dichloro-1a,1b-dihydrodibenzo(b,f)cycloprop(d)azepine-6(1H)-carboxaldehyde
TAKEDA CHEMICAL INDUSTRIES LTD1 citations46
US4154731AMay 15, 1979
Spiro[cyclopropane-1,2'-indolin]-3'-ones
TAKEDA CHEMICAL INDUSTRIES LTD0 citations36