Issued Patents All Time
Showing 51–75 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5155078 | Titanium catalyst components, process for preparing same, catalysts containing same for preparing ethylene polymers and process for preparing said ethylene polymers | Kazumitsu Kawakita, Akinori Toyota | 1992-10-13 |
| 5153158 | Solid catalyst components for olefin polymerization and processes for the polymerization of olefin using same | Masao Nakano, Takashi Ueda | 1992-10-06 |
| 5122491 | Catalyst for polymerizing an olefin and process for polymerizing an olefin | Norio Kashiwa, Toshiyuki Tsutsui, Akinori Toyota | 1992-06-16 |
| 5091353 | Process for producing ethylene copolymer | Norio Kashiwa | 1992-02-25 |
| 5091352 | Olefin polymerization catalyst component, olefin polymerization catalyst and process for the polymerization of olefins | Toshiyuki Tsutsui, Akinori Toyota | 1992-02-25 |
| 5075396 | Process and catalyst composition for producing olefin polymers | Norio Kashiwa, Akinori Toyota | 1991-12-24 |
| 5055528 | Process for producing propylene copolymers | Akinori Toyota, Norio Kashiwa | 1991-10-08 |
| 5028671 | Process for polymerization of olefins and polymerization catalyst | Norio Kashiwa | 1991-07-02 |
| 5015612 | Olefin polymerization catalyst subjected to preliminary polymerization treatment | Masao Nakano, Kenji Doi, Akinori Toyota | 1991-05-14 |
| 4990479 | Process for polymerizing olefins and polymerization catalyst therefor | Naoshi Ishimaru, Akinori Toyota | 1991-02-05 |
| 4990640 | Benzene-insoluble organoaluminum oxy-compounds and process for preparing same | Toshiyuki Tsutsui, Akinori Toyota | 1991-02-05 |
| 4990477 | Olefin polymerization catalyst component, process for production thereof, olefin polymerization catalyst, and process for polymerizing olefins | Masao Nakano, Akinori Toyota | 1991-02-05 |
| 4972035 | Process for preparing ultra-high-molecular-weight polyolefin fine powder | Michiharu Suga, Toshio Kobayashi, Akifumi Kato, Michio Endo | 1990-11-20 |
| 4952540 | Finely divided aluminoxane, process for producing same and its use | Norio Kashiwa | 1990-08-28 |
| 4952649 | Process for producing olefin polymers or copolymers and catalyst components used therefor | Norio Kashiwa | 1990-08-28 |
| 4933393 | Polyolefin composition | Akinori Toyota, Takeshi Shiraki, Kunie Hiroshige | 1990-06-12 |
| 4923833 | Catalyst for olefin polymerization and processes for its production | Norio Kashiwa | 1990-05-08 |
| 4921825 | Solid catalyst for olefin polymerization and processes for its production | Norio Kashiwa | 1990-05-01 |
| 4894421 | Low-crystalline propylene random copolymer composition, process for production thereof, and polypropylene composite laminated structure | Masahiro Sugi, Akinori Toyota, Norio Kashiwa | 1990-01-16 |
| 4874734 | Process for producing solid catalyst for polymerization of olefins | Norio Kashiwa | 1989-10-17 |
| 4841003 | Process for producing olefin polymers | Norio Kashiwa, Akinori Toyota | 1989-06-20 |
| 4822840 | Low-crystalline propylene random copolymer composition, process for production thereof, and polypropylene composite laminated structure | Masahiro Sugi, Akinori Toyota, Norio Kashiwa | 1989-04-18 |
| 4742139 | Process for producing olefin polymers or copolymers | Norio Kashiwa | 1988-05-03 |
| 4725656 | Process for producing olefin polymers | Norio Kashiwa, Akinori Toyota | 1988-02-16 |
| 4704491 | Liquid ethylene-alpha-olefin random copolymer, process for production thereof, and use thereof | Toshiyuki Tsutsui, Akinori Toyota, Norio Kashiwa | 1987-11-03 |