Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5262570 | Method of producing ethylenediamines | Yuuji Shimasaki, Youichi Hino, Tetsuro Hayashi, Michio Ueshima | 1993-11-16 |
| 5235107 | Method of producing ethylenediamines | Yuuji Shimasaki, Youichi Hino, Tetsuro Hayashi, Michio Ueshima | 1993-08-10 |
| 4977118 | Method for regeneration of catalyst for producing of aziridine compounds | Kimio Ariyoshi, Atusi Moriya, Michio Ueshima | 1990-12-11 |
| 4966980 | Process for producing aziridines | Teruo Kamei, Yuuji Shimasaki, Koichi Yamamoto, Yutaka Morimoto, Michio Ueshima | 1990-10-30 |
| 4558028 | Catalyst for production of methacrylic acid | Michio Ueshima, Ryuji Aoki, Isao Nagai | 1985-12-10 |