Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6433083 | Aromatic vinyl resin material and molded products thereof | Tomoaki Takebe, Masanori Sera | 2002-08-13 |
| 6376614 | Ethylene copolymer and aromatic vinyl graft copolymer and method for producing the same | Masanori Sera | 2002-04-23 |
| 6207753 | Aromatic vinyl resin material and molded products thereof | Tomoaki Takebe, Masanori Sera | 2001-03-27 |
| 6100331 | Graft copolymer and styrene-based resin composition | — | 2000-08-08 |
| 5739227 | Process for controlling molecular weight of a styrenic polymer | Norio Tomotsu | 1998-04-14 |
| 5612452 | Process for purification of styrenic polymer | Komei Yamasaki | 1997-03-18 |
| 5449746 | Process for purification of styrenic polymer | — | 1995-09-12 |
| 5426176 | Process for purification of styrenic polymer | Masahiko Kuramoto | 1995-06-20 |
| 5420240 | Process for purification of syndiotactic styrene polymer | Masahiko Kuramoto | 1995-05-30 |
| 5321122 | Process for purification of styrene polymer | Masahiko Kuramoto | 1994-06-14 |
| 5247020 | Process for producing a styrene polymer composition | Akikazu Nakano, Masahiko Kuramoto | 1993-09-21 |
| 5032650 | Process for producing a highly syndiotactic styrene-based polymer | Koji Yamamoto, Kazutoshi Ishikawa | 1991-07-16 |
| 4918159 | Styrene-based/polymercaptan polymer and process for production thereof | Shinichi Nakamura, Eiichi Terada | 1990-04-17 |