Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627714 | Method for producing an olefin type copolymer having a cyclic structure | Shigeharu Yamamoto, Toshifumi Takemori, Yoji Suzuki, Kazuhiko Mizuno, Yoko Furuyama +1 more | 2003-09-30 |
| 6455647 | Solid catalyst for olefin polymerization and process for producing olefin polymer with the same | Toshifumi Takemori, Minoru Iijima, Yukiko Hane, Shigeharu Yamamoto | 2002-09-24 |
| 6368995 | Solid catalysts for the polymerization of olefins and process for the production of olefin polymers therewith | Toshifumi Takemori, Minoru Iijima, Yukiko Hane, Shigeharu Yamamoto | 2002-04-09 |
| 5422400 | Method for producing an ethylenic polymer composition | Masao Kawahara, Kunihiro Inamatsu, Keizo Kase, Kouji Mizokami, Tsuyoshi Matsumoto | 1995-06-06 |
| 4742132 | Process for the polymerization or copolymerization of ethylene | Hiroshi Morinaga, Shigeharu Yamamoto, Takeshi Iwabuchi | 1988-05-03 |
| 4657996 | Process for producing polyethylene | Takeshi Iwabuchi, Masao Kawahara, Terumi Sato | 1987-04-14 |
| 4643986 | Process for preparing a catalyst for polymerization or copolymerization of ethylene | Hiroshi Morinaga, Yuzo Sato | 1987-02-17 |
| 4464518 | Process for the polymerization or copolymerization of ethylene | Takeshi Iwabuchi, Hiroshi Morinaga, Masao Kawahara, Terumi Sato, Muneto Yokota | 1984-08-07 |