Inventor · disambiguated record
Seizo Sumida
Also filed as: SUMIDA SEIZO
21 granted patents·122 citations·filing 1977–1981
94Inventor score
Files withSUMITOMO CHEMICAL CO21
Top patents by PatentIndex Score
21 records- 0190US4129436AN'-[4-(substituted phenethyloxy)phenyl]-N-methyl-N-methoxyureaSUMITOMO CHEMICAL CO·Filed 1978·Granted Dec 12, 1978·22 cites·7 claims
- 0284US4260411AN'-phenyl-N-methylurea derivativesSUMITOMO CHEMICAL CO·Filed 1979·Granted Apr 7, 1981·12 cites·18 claims
- 0382US4123256AN-(4-substituted benzyloxy)phenyl)-N-methyl-N-methoxyureaSUMITOMO CHEMICAL CO·Filed 1977·Granted Oct 31, 1978·12 cites·11 claims
- 0478US4334912AUrea derivatives, and their production and useSUMITOMO CHEMICAL CO·Filed 1980·Granted Jun 15, 1982·11 cites·14 claims
- 0577US4309212AHerbicidal compositions and methods employing urea derivativesSUMITOMO CHEMICAL CO·Filed 1978·Granted Jan 5, 1982·9 cites·11 claims
- 0675US4249938AN-Phenyl-N-methyl-urea derivatives, and their production and useSUMITOMO CHEMICAL CO·Filed 1978·Granted Feb 10, 1981·9 cites·14 claims
- 0772US4437880AN'-Phenyl-N-methylurea derivativesSUMITOMO CHEMICAL CO·Filed 1981·Granted Mar 20, 1984·10 cites·8 claims
- 0869US4144049AN-(4-Benzyloxyphenyl)-N-methyl-N-methoxyureaSUMITOMO CHEMICAL CO·Filed 1977·Granted Mar 13, 1979·8 cites·4 claims
- 0967US4401459AHerbicidal composition having enhanced herbicidal activity with high selectivity to soybeanSUMITOMO CHEMICAL CO·Filed 1979·Granted Aug 30, 1983·6 cites·11 claims
- 1057US4297129A3,5-Dioxo-1,2,4-triazinesSUMITOMO CHEMICAL CO·Filed 1980·Granted Oct 27, 1981·4 cites·20 claims
- 1155US4427596AN-[2-(Cyclopropyl) ethoxy] phenylanilide derivatives, and their production and useSUMITOMO CHEMICAL CO·Filed 1981·Granted Jan 24, 1984·3 cites·5 claims
- 1253US4280835AHerbicidal N-phenyl-N-methylurea derivativesSUMITOMO CHEMICAL CO·Filed 1978·Granted Jul 28, 1981·4 cites·9 claims
- 1351US4447260AN-Substituted phenyl-1-methylcyclopropanecarboxamides, and their herbicidal useSUMITOMO CHEMICAL CO·Filed 1981·Granted May 8, 1984·3 cites·8 claims
- 1449US4315768AOximecarbamate derivatives, and their production and useSUMITOMO CHEMICAL CO·Filed 1979·Granted Feb 16, 1982·2 cites·9 claims
- 1548US4381935AOximecarbamate derivatives, and their production and useSUMITOMO CHEMICAL CO·Filed 1981·Granted May 3, 1983·2 cites·10 claims
- 1643US4378992AUrea derivatives, and their production and useSUMITOMO CHEMICAL CO·Filed 1980·Granted Apr 5, 1983·2 cites·11 claims
- 1743US4256483A2-Alkoxy pyridazinoquinazolinone derivatives as herbicidesSUMITOMO CHEMICAL CO·Filed 1979·Granted Mar 17, 1981·1 cites·2 claims
- 1842US4361437A3-Thiooxo-5-oxo-hexahydro-1,2,4-triazine and its production and useSUMITOMO CHEMICAL CO·Filed 1981·Granted Nov 30, 1982·1 cites·3 claims
- 1941US4337082AHerbicidal composition comprising triazinone compoundSUMITOMO CHEMICAL CO·Filed 1981·Granted Jun 29, 1982·1 cites·9 claims
- 2034US4690709AUrea derivatives, and their use as herbicidesSUMITOMO CHEMICAL CO·Filed 1980·Granted Sep 1, 1987·0 cites·17 claims
- 2128US4399072AN-Phenyl-N-methylurea derivativesSUMITOMO CHEMICAL CO·Filed 1981·Granted Aug 16, 1983·0 cites·3 claims
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