Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364844 | Catalyst for production of unsaturated carboxylic acid, preparation thereof and production of unsaturated carboxylic acid | Sumio Umemura, Kyoji Ohdan, Fumihiko Sakai, Kenichi Suzuki, Toshihiko Hogami +1 more | 1982-12-21 |
| 4217309 | Process for producing methacrolein | Sumio Umemura, Kyoji Ohdan, Kenichi Suzuki, Terumi Hisayuki | 1980-08-12 |