Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612437 | Polymerization apparatus and method of producing vinyl chloride type polymer by using the same | Takuya Ueda, Kikuo Nakajima, Yoichi Tanifuji, Tadashi Amano | 1997-03-18 |