Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458971 | Process for the production of maleic anhydride | Yoshiaki Iizuka, Yasuyuki Yamauchi, Mamoru Sawano, Itaru Sawaki | 2002-10-01 |
| 6166241 | Process for the simultaneous preparation of acrylonitrile and arcylic acid | Atsushi Kayou | 2000-12-26 |
| 6093835 | Process for producing maleic anhydride | Itaru Sawaki, Hideo Suwa, Yasunori Ishimura | 2000-07-25 |
| 5534650 | Method for producing a nitrile | Takashi Ushikubo, Kazunori Oshima, Hiroyuki Amatsu | 1996-07-09 |
| 4711867 | Catalytic composition | Masakatsu Hatano, Kazunori Oshima, Kenichi KIYONO | 1987-12-08 |