Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7767827 | Pyrazole-1-carboxylate derivatives, process for the production thereof and process for the production of pyrazole derivatives | Atsushi Uchida, Wakako Yokota, Kenji Hirai | 2010-08-03 |
| 6090946 | Process for the preparation of 3-(substituted phenyl)-5-alkylidene-1,3-oxazolidine-2,4-dione derivatives | Kenji Hirai, Katsuyuki Masuda, Ryuta Ohno, Tomoko Matsukawa, Kiyomi Imai +3 more | 2000-07-18 |
| 5883049 | Hydantoin derivatives and herbicides containing said derivatives as active ingredient | Kenji Hirai, Natsuko Okano, Sadayuki Ugai, Osamu Yamada | 1999-03-16 |
| 5639915 | Process for the production of aniline derivatives | Kenji Hirai, Emiko Ejiri, Kiyomi Aizawa | 1997-06-17 |
| 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, Katsuyuki Masuda, Tomoko Yoshii, Takehito Mouri +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, Emiko Ejiri, Kiyomi Aizawa, Koichi Shikakura +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, Emiko Ejiri, Kiyomi Aizawa, Koichi Shikakura +4 more | 1996-04-09 |
| 5391807 | Methods of preparing fluorobenzene derivatives and related compounds | Kenji Hirai, Mitsuo Yamashita, Emiko Ejiri, Tomoko Tateno, Kiyomi Aizawa | 1995-02-21 |
| 5344953 | Fluorobenzene derivatives | Kenji Hirai, Mitsuo Yamashita, Emiko Ejiri, Tomoko Tateno, Kiyomi Aizawa | 1994-09-06 |
| 5281742 | Bis(fluorophenyl) carbonate derivatives | Kenji Hirai, Mitsuo Yamashita, Emiko Ejiri, Tomoko Tateno, Kiyomi Aizawa | 1994-01-25 |