Inventor
KOSHIBA MASAO
15 patents
Patents
15 patentsUS4183932AJan 15, 1980
Fused quinazolinones and preparation thereof
SUMITOMO CHEMICAL CO18 citations82
US4099002AJul 4, 1978
Quinazolinone derivatives and a process for production thereof
SUMITOMO CHEMICAL CO21 citations82
US4387223AJun 7, 1983
Process for preparing 2(1H)-quinazolinone derivatives
SUMITOMO CHEMICAL CO25 citations81
US4096144AJun 20, 1978
Process for preparing quinazolinone derivatives and their 2-(N-mono-substituted amino)-phenyl ketone intermediate derivatives
SUMITOMO CHEMICAL CO10 citations74
US4067868AJan 10, 1978
Production of quinazolinone compounds
SUMITOMO CHEMICAL CO11 citations74
US3953446AApr 27, 1976
Process for preparing quinazolines
SUMITOMO CHEMICAL CO10 citations74
US3950526AApr 13, 1976
Quinazoline derivatives in pharmaceutical compositions for treating pain and inflammation
SUMITOMO CHEMICAL CO10 citations74
US4202974AMay 13, 1980
Process for preparing 3,4-dihydro-2(1H)-quinazolinone derivatives
SUMITOMO CHEMICAL CO18 citations73
US4179560ADec 18, 1979
Imidazo- and pyrimido[2,1-b]quinazolines and preparation thereof
SUMITOMO CHEMICAL CO11 citations73
US4146717AMar 27, 1979
Nitroquinazolinone compounds having antiviral properties
SUMITOMO CHEMICAL CO15 citations73
US4048168ASep 13, 1977
Process for preparing 1-polyhaloalkyl-3,4-dihydro-2-(1H)-quinazolinones
SUMITOMO CHEMICAL CO13 citations73
US4002755AJan 11, 1977
Triazoloquinazolines
SUMITOMO CHEMICAL CO11 citations73
US4228167AOct 14, 1980
Diuretic and vasodilating tricyclic quinazolines
SUMITOMO CHEMICAL CO3 citations62
US3980645ASep 14, 1976
Fused quinazolinones and a process for production thereof
SUMITOMO CHEMICAL CO1 citations52
US3970654AJul 20, 1976
Antiviral 2(1H)-quinazolinone derivatives
SUMITOMO CHEMICAL CO1 citations51