Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4618709 | Waste water treatment in the production of methacrylic acid | Masao Sada, Michio Kato, Tadashi Abe, Masanori Moriwaki | 1986-10-21 |
| 4199410 | Purification of crude acrylic acid | Tetsuya Ohrui, Michio Kato, Tsunejiro Kawaguchi, Tadashi Abe | 1980-04-22 |