Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6620948 | Process for the preparation of maleic anhydride | Itaru Sawaki, Hideo Suwa, Yoshiaki Iizuka, Mineo Izumi | 2003-09-16 |
| 6310219 | Process for the production of maleic anhydride | Itaru Sawaki, Hideo Suwa, Yoshiaki Iizuka, Mineo Izumi | 2001-10-30 |
| 6093835 | Process for producing maleic anhydride | Itaru Sawaki, Hideo Suwa, Tatsuya Ihara | 2000-07-25 |