Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6548511 | Insecticidal/acaricidal agents | Kenji Hirai, Takeshi Yoshizawa, Sachiko Itoh, Yuriko Nagata, Chikako Ota +2 more | 2003-04-15 |
| 6090946 | Process for the preparation of 3-(substituted phenyl)-5-alkylidene-1,3-oxazolidine-2,4-dione derivatives | Kenji Hirai, Katsuyuki Masuda, Tomoyuki Yano, Ryuta Ohno, Tomoko Matsukawa +3 more | 2000-07-18 |
| 5883049 | Hydantoin derivatives and herbicides containing said derivatives as active ingredient | Kenji Hirai, Tomoyuki Yano, Sadayuki Ugai, Osamu Yamada | 1999-03-16 |