Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839458 | Preparation with controlled amounts of polycarbonate carbon tetrachloride | Shinichiro Koga, Katsuyuki Sakata, Yoshiaki Ohtani, Isao Akihara | 1989-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839458 | Preparation with controlled amounts of polycarbonate carbon tetrachloride | Shinichiro Koga, Katsuyuki Sakata, Yoshiaki Ohtani, Isao Akihara | 1989-06-13 |