Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818445 | Apparatus for treating a solution or a slurry solution | Masakazu Onizuka, Katsuhiko Yamada, Masao Hino, Nobutaka Maeda, Tokuma Arai | 1989-04-04 |
| 4810477 | Method for desulfurizing smoke | Naoharu Shinoda, Toru Takashina, Masakazu Onizuka | 1989-03-07 |