Issued Patents All Time
Showing 51–67 of 67 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5085895 | Polyolefin resin composition | Kazuhiko Yamamoto, Junko Ohnaka, Yoshiko Tokura | 1992-02-04 |
| 5082893 | Polyolefin resin compositions and applications thereof | Kazuhiko Yamamoto, Mitsuru Ito, Kaoru Kawanishi | 1992-01-21 |
| 5081190 | Block copolymer of propylene and a process for the production thereof | Mitsuru Ito, Kaoru Kawanishi | 1992-01-14 |
| 5045597 | .alpha.-olefin block copolymers and processes for preparing the same | Kazuhiko Yamamoto, Junko Ohnaka, Yoshiko Tokura | 1991-09-03 |
| 4921905 | Process for the production of block copolymer of propylene and ethylene | Ichiro Fujio, Kaneo Ito | 1990-05-01 |
| 4772661 | Process for the production of block copolymer of propylene | Mitsuru Ito, Kaneo Ito, Shigeru Kimura, Nobutaka Uchikawa, Ichiro Fujio | 1988-09-20 |
| 4762897 | Process for recovering a mixture of unreacted ethylene and propylene | Yoshiyuki Funakoshi, Tatuo Ohoka | 1988-08-09 |
| 4751265 | Production of propylene block copolymer | Ichiro Fujio, Nobutaka Uchikawa, Tetsunosuke Shiomura | 1988-06-14 |
| 4742131 | Method of controlling polymerization temperature | Mitsuru Ito, Kaneo Ito, Yoshiyuki Funakoshi, Akihiko Nakajima | 1988-05-03 |
| 4729772 | Separation method of polymer powder and carrier gas | Yoshiyuki Funakoshi, Kaneo Ito, Akihiko Nakajima | 1988-03-08 |
| 4725338 | Purification process of polymerization solvent | Tatuo Ohoka, Minoru Hino, Nobutaka Uchikawa | 1988-02-16 |
| 4659755 | Method of continuously operating a counter-flow washing column | Tatuo Ohoka, Yoshiyuki Funakoshi | 1987-04-21 |
| 4632976 | Process for the continuous discharge of a slurry | Tatuo Ohoka, Nobutaka Uchikawa | 1986-12-30 |
| 4581426 | Process for polymerization of .alpha.-olefins and catalysts therefor | Tetsunosuke Shiomura | 1986-04-08 |
| 4468257 | Washing and removal method of high molecular substances | Masahiro Kaneko, Nobutaka Uchikawa, Ichiro Fujio, Tetsunosuke Shiomura | 1984-08-28 |
| 4409378 | Process for polymerization of .alpha.-olefins and catalysts therefor | Nobutaka Uchikawa, Tetsunosuke Shiomura | 1983-10-11 |
| 4220745 | Process for polymerization of .alpha.-olefins | Takao Tanaka, Tetsunosuke Shiomura, Akira Ito | 1980-09-02 |