Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693728 | Process for producing cyclic olefin based polymers | Takuji Okamoto, Junichi Matsumoto, Masami Watanabe | 1997-12-02 |
| 5648443 | Cyclic olefin copolymers, compositions and molded articles comprising the copolymers | Takuji Okamoto, Junichi Matsumoto, Masami Watanabe | 1997-07-15 |
| 5629398 | Process for producing cyclic olefin based polymers, cyclic olefin copolymers, compositions and molded articles comprising the copolymers | Takuji Okamoto, Junichi Matsumoto, Masami Watanabe | 1997-05-13 |