Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340892 | Process for producing styrene polymers | — | 1994-08-23 |
| 5321122 | Process for purification of styrene polymer | Hideo Teshima | 1994-06-14 |
| 5272229 | Process for producing a styrene polymer having high degree of syndiotactic configuration | Norio Tomotsu, Mizutomo Takeuchi | 1993-12-21 |
| 5262504 | Styrene copolymer and process for production thereof | Toshinori Tazaki | 1993-11-16 |
| 5260394 | Styrene copolymer and process for production thereof | Toshinori Tazaki | 1993-11-09 |
| 5252693 | Syndiotactic styrene polymers | Nobuhide Ishihara, Michitake Uoi | 1993-10-12 |
| 5247020 | Process for producing a styrene polymer composition | Akikazu Nakano, Hideo Teshima | 1993-09-21 |
| 5212232 | Process for production of styrene-based polymers | Hiroshi Maezawa, Hiroshi Hayashi | 1993-05-18 |
| 5189125 | Process for producing syndiotactic styrene copolymer | Nobuhide Ishihara, Michitake Uoi | 1993-02-23 |
| 5166238 | Styrene-based resin composition | Akikazu Nakano, Toshihiro Furusawa, Toshikazu Ijitsu, Masakazu Suzuki, Nobuhide Ishihara +4 more | 1992-11-24 |
| 5093295 | Process for producing homogeneous aluminoxane solution | Norio Tomotsu | 1992-03-03 |
| 5071953 | Method for the preparation of amorphous syndiotactic styrene-based polymer and a method for shaping the same | Akikazu Nakano, Masakazu Suzuki, Michihiro Sawada | 1991-12-10 |
| 5023222 | Catalyst for producing syndiotactic configuration styrene-based polymers | Hiroshi Maezawa, Norio Tomotsu | 1991-06-11 |
| 5023304 | Process for producing styrene-based polymer | Mizutomo Takeuchi | 1991-06-11 |
| 4997898 | Vinylcyclohexane-based polymers and process for production thereof | Nobuhide Ishihara | 1991-03-05 |
| 4990580 | Process for production of styrene polymers | Nobuhide Ishihara, Michitake Uoi | 1991-02-05 |
| 4978730 | Process for producing styrene-based polymers and catalyst for use therein | Hiroshi Maezawa, Norio Tomotsu | 1990-12-18 |
| 4814540 | Process for producing propylene oligomers | Masami Watanabe | 1989-03-21 |
| 4680353 | Process for production of styrene polymers | Nobuhide Ishihara, Michitake Uoi | 1987-07-14 |