Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648581 | Method for vapor phase polymerization of alpha-olefin | Masahiro Niwa, Eiko Kobayashi, Mamoru Yoshikawa | 1997-07-15 |
| 5604170 | Solid catalyst components for olefin polemerization and use thereof | Akira Sano, Kazuo Matsuura, Yoshio Tajima | 1997-02-18 |
| 5571879 | Method of vapor phase polymerization of olefins | Makoto Jimbo, Mamoru Yoshikawa, Shinjiro Suga, Yoshihisa Yamaguchi, Masahiro Niwa +1 more | 1996-11-05 |
| 5543478 | Method for operating reactor for polymerizing olefins | Masahiro Niwa, Yuji Sugano, Ken-ichi Uenishi, Hideto Kitada, Yoshihisa Yamaguchi +2 more | 1996-08-06 |
| 5525687 | Method for producing polyolefin | Yoshihisa Yamaguchi, Shinjiro Suga, Masatoshi Morikawa, Motokazu Watanabe, Yasuhiko Sano | 1996-06-11 |
| 5432236 | Process for preparing polyolefins | Akira Sano, Kazuo Matsuura | 1995-07-11 |
| 5385991 | Method for producing polyolefin | Yoshihisa Yamaguchi, Shinjiro Suga, Masatoshi Morikawa, Motokazu Watanabe, Yasuhiko Sano | 1995-01-31 |
| 5310833 | Process for feeding catalyst to fluidized bed for vapor phase polymerization | Motokazu Watanabe, Mamoru Yoshikawa, Masatoshi Morikawa, Yoshihisa Yamaguchi | 1994-05-10 |
| 5260384 | Polyethylene composition | Toshifumi Morimoto, Toshiyuki Miyauchi, Sumio Ikeda, Narumi Ishikawa, Noboru Ikegami | 1993-11-09 |
| 5202396 | Process for feeding catalyst to fluidized bed for vapor phase polymerization | Motokazu Watanabe, Mamoru Yoshikawa, Masatoshi Morikawa, Yoshihisa Yamaguchi | 1993-04-13 |
| 5189106 | Polyethylene composition | Toshifumi Morimoto, Takaaki Hattori, Noboru Ikegami, Hirofumi Nishibu, Toshiyuki Miyauchi | 1993-02-23 |
| 4849390 | Catalysts for polymerization of olefins | Akira Sano, Kazuo Matsuura | 1989-07-18 |
| 4525548 | Method for vapor phase polymerization of olefins | Mamoru Yoshikawa, Motokazu Watanabe, Yasunosuke Miyazaki, Mituji Miyoshi | 1985-06-25 |
| 4438073 | Vapor phase polymerization apparatus for olefins | Yasunosuke Miyazaki, Mamoru Yoshikawa, Mituji Miyoshi | 1984-03-20 |
| 4414369 | Continuous process for the preparation of polyolefins having widely distributed molecular weights | Nobuyuki Kuroda, Tatsuo Horie, Kazuo Matsuura, Mituji Miyoshi | 1983-11-08 |
| 4372919 | Vapor phase polymerization apparatus for olefins | Mamoru Yoshikawa, Motokazu Watanabe, Yasunosuke Miyazaki, Mituji Miyoshi | 1983-02-08 |