SS

Seizo Sumida

SC Sumitomo Chemical: 18 patents #188 of 4,033Top 5%
📍 Kasai, JP: #450 of 5,842 inventorsTop 8%
Overall (All Time): #260,983 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
4690709 Urea derivatives, and their use as herbicides Ichiki Takemoto, Ryo Yoshida, Katsuzo Kamoshita 1987-09-01
4447260 N-Substituted phenyl-1-methylcyclopropanecarboxamides, and their herbicidal use Hiroshi Noguchi, Ryo Yoshida, Katsuzo Kamoshita 1984-05-08
4437880 N'-Phenyl-N-methylurea derivatives Junya Takahashi, Ichiki Takemoto, Katsuzo Kamoshita, Ryo Yoshida, Haruhiko Katoh 1984-03-20
4427596 N-[2-(Cyclopropyl) ethoxy] phenylanilide derivatives, and their production and use Ichiki Takemoto, Katsuzo Kamoshita, Ryo Yoshida 1984-01-24
4401459 Herbicidal composition having enhanced herbicidal activity with high selectivity to soybean Takeo Satomi, Ryo Yoshida 1983-08-30
4399072 N-Phenyl-N-methylurea derivatives Takemoto Ichiki, Ryo Yoshida, Kamoshita Katsuzo 1983-08-16
4381935 Oximecarbamate derivatives, and their production and use Yoshiaki Kosuge, Ryo Yoshida, Hirofumi Oshita, Soji Otsuki, Katsuzo Kamoshita 1983-05-03
4378992 Urea derivatives, and their production and use Ryo Yoshida, Ichiki Takemoto, Katsuzo Kamoshita 1983-04-05
4361437 3-Thiooxo-5-oxo-hexahydro-1,2,4-triazine and its production and use Shunichi Hashimoto, Hiromichi Oshio, Masato Mizutani, Yuzuru Sanemitsu, Haruhiko Katoh +1 more 1982-11-30
4337082 Herbicidal composition comprising triazinone compound Shunichi Hashimoto, Hiromichi Oshio, Masato Mizutani, Yuzuru Sanemitsu, Haruhiko Katoh 1982-06-29
4334912 Urea derivatives, and their production and use Ryo Yoshida, Haruhiko Katoh, Ichiki Takemoto, Junya Takahashi, Katsuzo Kamoshita 1982-06-15
4315768 Oximecarbamate derivatives, and their production and use Yoshiaki Kosuge, Ryo Yoshida, Hirofumi Oshita, Soji Otsuki, Katsuzo Kamoshita 1982-02-16
4309212 Herbicidal compositions and methods employing urea derivatives Ichiki Takemoto, Ryo Yoshida, Katsuzo Kamoshita 1982-01-05
4297129 3,5-Dioxo-1,2,4-triazines Yuzuru Sanemitsu, Masato Mizutani, Haruhiko Katoh, Hiromichi Oshio, Shunichi Hashimoto 1981-10-27
4280835 Herbicidal N-phenyl-N-methylurea derivatives Takemoto Ichiki, Ryo Yoshida, Kamoshita Katsuzo 1981-07-28
4260411 N'-phenyl-N-methylurea derivatives Ryo Yoshida, Ichiki Takemoto, Katsuzo Kamoshita 1981-04-07
4256483 2-Alkoxy pyridazinoquinazolinone derivatives as herbicides Shuichiro Asao, Yoshinori Nakayama, Ryo Yoshida, Shunichi Hashimoto 1981-03-17
4249938 N-Phenyl-N-methyl-urea derivatives, and their production and use Ichiki Takemoto, Ryo Yoshida, Katsuzo Kamoshita 1981-02-10