Issued Patents All Time
Showing 26–50 of 93 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6133490 | Dispersant for pigments for aromatic polymers | Hideo Toyoda, Hideki Sakai, Kenichi Morizono | 2000-10-17 |
| 6063726 | Catalyst for polymerizing alpha-olefins and process for polymerization | Mamoru Kioka, Akinori Toyota, Norio Kashiwa | 2000-05-16 |
| 6063871 | Metallocene polyethylene blend compositions | Masahiro Kishine, Keiji Watanabe, Katsunori Yano | 2000-05-16 |
| 6043325 | Process for olefin polymerization | Ken Yoshitsugu, Masaaki Ohgizawa, Tetsuhiro Matsumoto, Junichi Imuta | 2000-03-28 |
| 6040407 | Chain polyene group-containing norbornene compound and unsaturated ethylene copolymer using the same | Tatsuyoshi Ishida, Masaaki Yasuda, Hitoshi Onishi, Noriaki Kihara, Toshihiro Sagane +2 more | 2000-03-21 |
| 6013743 | Process for polymerization of alpha-olefins | Akinori Toyota, Norio Kashiwa | 2000-01-11 |
| 6001941 | Ethylene .alpha.-olefin copolymer obtained by copolymerizing ethylene with an .alpha.-olefin | Ken Yoshitsugu, Mamoru Takahashi, Akira Todo, Seiji Ohta, Hajime Inagaki | 1999-12-14 |
| 5998039 | Polypropylene composition and uses thereof | Tatsuya Tanizaki, Mikio Hashimoto, Masahiro Sugi, Yasuo Tanaka, Mamoru Kagami | 1999-12-07 |
| 5922823 | Ethylene-.alpha.-olefin-nonconjugated polyene random copolymer | Toshihiro Sagane | 1999-07-13 |
| 5916988 | Ethylene random copolymers | Ken Yoshitsugu, Akinori Toyota | 1999-06-29 |
| 5883205 | Process for the preparation of an ethylene copolymer and prepolymerized solid catalyst for olefin polymerization | Ken Yoshitsugu, Takashi Ueda | 1999-03-16 |
| 5880056 | Olefin polymerization catalyst and process for olefin polymerization | Masaaki Ohgizawa | 1999-03-09 |
| 5869563 | Ethylene/.alpha.-olefin/nonconjugated polyene copolymer rubber composition | Masaaki Kawasaki, Hidenari Nakahama, Tetsuo Tojo, Kyoko Kobayashi, Toshihiro Sagane | 1999-02-09 |
| 5840815 | Gas-phase or slurry polymerization process for the preparation of an olefin polymer | Ken Yoshitsugu, Takashi Ueda | 1998-11-24 |
| 5840645 | Olefin polymerization catalyst and method for the polymerization of olefin using said olefin polymerization catalyst | Ryosuke Ohno | 1998-11-24 |
| 5837791 | Unsaturated copolymer of ethylene and process for preparing the same | Toshihiro Sagane, Masaaki Kawasaki, Hidenari Nakahama, Tatsuyoshi Ishida, Katsuya Takahashi +3 more | 1998-11-17 |
| 5834557 | Graft modified ethylene/.alpha.-olefin copolymer composition | Ken Yoshitsugu, Mamoru Takahashi, Akira Todo, Seiji Ohta, Hajime Inagaki | 1998-11-10 |
| 5807801 | Catalyst for the polymerization of alpha-olefins | Akinori Toyota, Norio Kashiwa | 1998-09-15 |
| 5807948 | Vulcanizable rubber composition containing ehtylene-.alpha.-olefin-nonconjugated polyene random copolymer | Toshihiro Sagane, Masaaki Kawasaki, Keiji Okada, Hidenari Nakahama, Tetsuo Tojo | 1998-09-15 |
| 5795838 | Olefin polymerization catalyst and process for olefin polymerization | Ken Yoshitsugu, Masaaki Ohgizawa, Tetsuhiro Matsumoto, Junichi Imuta | 1998-08-18 |
| 5756575 | Ethylene/.alpha.-olefin/nonconjugated polyene copolymer rubber composition | Masaaki Kawasaki, Hidenari Nakahama, Tetsuo Tojo, Kyoko Kobayashi, Toshihiro Sagane | 1998-05-26 |
| 5744566 | Unsaturated copolymer based on olefin and produciton and use thereof | Masaaki Kawasaki | 1998-04-28 |
| 5714426 | Olefin polymerization catalyst | Ken Yoshitsugu, Akinori Toyota | 1998-02-03 |
| 5708080 | Graft modified ethylene/.alpha.-olefin copolymer | Ken Yoshitsugu, Mamoru Takahashi, Akira Todo, Seiji Ohta, Hajime Inagaki | 1998-01-13 |
| 5703180 | Catalyst for olefin polymerization, process for olefin polymerization using the same, ethylene/.alpha.-olefin copolymer, graft modified ethylene/.alpha.-olefin copolymer, and ethylene copolymer composition | Ken Yoshitsugu, Mamoru Takahashi, Akira Todo | 1997-12-30 |