Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804778 | Process for producing methacrylic acid | Kazuhiro Ishii, Masaaki Kato | 1989-02-14 |
| 4803302 | Process for the production of methacrylic acid | Masaaki Kato, Masao Kobayashi | 1989-02-07 |