Issued Patents All Time
Showing 1–12 of 12 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 |
| 5422407 | Process for producing styrene-based polymers and catalyst for use therein | Norio Tomotsu | 1995-06-06 |
| 5420089 | Catalyst for the production of styrene-based polymers | Norio Tomotsu | 1995-05-30 |
| 5344900 | Process for producing a norbornene polymer | Junichi Matsumoto, Hideki Aiura, Satoshi Asahi | 1994-09-06 |
| 5276117 | Process for producing styrene-based polymers and catalysts for use therein | Norio Tomotsu | 1994-01-04 |
| 5212232 | Process for production of styrene-based polymers | Masahiko Kuramoto, Hiroshi Hayashi | 1993-05-18 |
| 5084585 | Process for preparation of aluminoxane | Norio Tomotsu | 1992-01-28 |
| 5070160 | Process for drying aluminoxane and process for producing polymers | Norio Tomotsu, Koji Yamamoto | 1991-12-03 |
| 5023222 | Catalyst for producing syndiotactic configuration styrene-based polymers | Norio Tomotsu, Masahiko Kuramoto | 1991-06-11 |
| 4978730 | Process for producing styrene-based polymers and catalyst for use therein | Norio Tomotsu, Masahiko Kuramoto | 1990-12-18 |