Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654248 | Catalyst for polymerizing alpha-olefins and process for polymerization | Akinori Toyota, Norio Kashiwa, Toshiyuki Tsutsui | 1997-08-05 |
| 5652303 | Process for polymerizing olefins and catalyst for polymerizing olefins | Naoshi Ishimaru, Akinori Toyota | 1997-07-29 |
| 5623033 | Titanium catalyst component for ethylene polymerization, ethylene polymerization catalyst, and process for ethylene polymerization using the same | Tsuneo Yashiki | 1997-04-22 |
| 5618886 | Olefin polymerization catalyst and process for preparing polypropylene and propylene block copolymers | Tetsunori Shinozaki | 1997-04-08 |
| 5595827 | Polypropylene resin composition and the use of the same | Masaya Yamada, Michio Toriumi, Tetsunori Shinozaki | 1997-01-21 |