Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5763687 | Preparation process for aromatic mononitro compounds | Jyoji Morisaki, Masaaki Iijima, Kouki Oogaki, Hiroaki Matsuno, Takashi Yamaguchi | 1998-06-09 |
| 5707919 | Catalyst for preparing chlorine from hydrogen chloride | Jyoji Morisaki, Teruo Hirayama, Hironori Kamachi, Kunihiro Yamada | 1998-01-13 |
| 4806683 | Preparation process of cinnamic acids | Usaji Takaki, Toshio Matsuhisa | 1989-02-21 |
| 4381405 | Process for the preparation of polymethylene polyphenyl polyisocyanate composition | Koichi Takeuchi | 1983-04-26 |
| 4319018 | Process for producing polymethylene polyphenyl polycarbamates | Seiji Hasegawa, Shinobu Aoki, Isao Hara | 1982-03-09 |
| 4227008 | Process for preparing aromatic urethanes | Makoto Aiga, Seiji Hasegawa | 1980-10-07 |