Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698652 | Styrenic polymer and molded article | Takuma Aoyama, Takaaki Uchida, Akitoshi Masuyama | 1997-12-16 |
| 5612452 | Process for purification of styrenic polymer | Hideo Teshima | 1997-03-18 |