Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5883049 | Hydantoin derivatives and herbicides containing said derivatives as active ingredient | Kenji Hirai, Tomoyuki Yano, Natsuko Okano, Osamu Yamada | 1999-03-16 |
| 5612289 | 4-imino-oxazolidine-2-one derivatives, a process for producing such derivatives and a herbicide containing them as an active ingredient | Kenji Hirai, Tomoko Matsukawa, Tomoyuki Yano, Katsuyuki Masuda, Tomoko Yoshii +2 more | 1997-03-18 |
| 5554581 | Tetrahydrophthalamide derivative, intermediate for producing the same, production of both, and herbicide containing the same as active ingredient | Kenji Hirai, Tomoko Matsukawa, Tomoyuki Yano, Emiko Ejiri, Kiyomi Aizawa +4 more | 1996-09-10 |
| 5506190 | Tetrahydrophthalamide derivative, intermediate for producing the same, production of both, and herbicide containing the same as active ingredient | Kenji Hirai, Tomoko Matsukawa, Tomoyuki Yano, Emiko Ejiri, Kiyomi Aizawa +4 more | 1996-04-09 |
| 5464811 | Benzene derivatives substituted with heterocyclic ring and herbicides containing same as active ingredients | Kenji Hirai, Mitsuo Yamashita, Tomoko Tateno, Emiko Ejiri, Kikuko Harasawa +2 more | 1995-11-07 |
| 5424277 | Benzene derivatives substituted with heterocyclic ring, and herbicides containing same as active ingredients | Kenji Hirai, Mitsuo Yamashita, Tomoko Tateno, Emiko Ejiri, Kikuko Harasawa +2 more | 1995-06-13 |