Issued Patents All Time
Showing 151–168 of 168 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4550144 | Propylene-ethylene copolymers for high-rigidity molded products and process for producing the same | Hiromasa Chiba, Katsumi Kumahara, Takakiyo Harada, Takahiro Oka | 1985-10-29 |
| 4535069 | Catalyst component for .alpha.-olefin polymerization | Hiroshi Shimizu, Masaki Abe | 1985-08-13 |
| 4533705 | Process for producing .alpha.-olefin polymers | Kazutsune Kikuta, Toshihiro Uwai, Kenji Matsuda, Nobutaka Hattori | 1985-08-06 |
| 4526931 | Whitening-resistant, highly melt-viscoelastic ethylene-propylene copolymer and process for producing the same | Hiromasa Chiba, Takakiyo Harada, Katsumi Kumahara, Shunji Kawazoe | 1985-07-02 |
| 4522994 | Polypropylene resin for high-rigidity molded products | Hiromasa Chiba, Katsumi Kumahara, Takakiyo Harada, Takahiro Oka | 1985-06-11 |
| 4514513 | Preactivated catalyst for producing .alpha.-olefin polymers | Kazutsune Kikuta, Kenji Matsuda, Toshihiro Uwai, Tohru Hanari | 1985-04-30 |
| 4500682 | High melt-viscoelastic polypropylene for post-processed sheets and for blow molding | Hiromasa Chiba, Kenjiro Obama, Shunji Kawazoe, Takahiro Oka | 1985-02-19 |
| 4483971 | Process for producing terpolymers of propylene, ethylene and another .alpha . | Takeshi Suzuki, Kazutsune Kikuta, Hiromasa Chiba, Toshihiro Uwai, Kenji Matsuda +1 more | 1984-11-20 |
| 4460757 | Process for producing .alpha.-olefin polymers | Masami Tachibana, Toshihiro Uwai, Kenji Matsuda, Yoshiharu Higuchi | 1984-07-17 |
| 4420593 | Process for producing .alpha.-olefin polymers | Kazutsune Kikuta, Kenji Matsuda, Toshihiro Uwai, Tohru Hanari | 1983-12-13 |
| 4403081 | Method for producing .alpha.-olefin polymers | Masato Harada, Sadahiko Yamada, Kazutsune Kikuta, Atsushi Suzuki, Hiroshi Shimizu +3 more | 1983-09-06 |
| 4387198 | Process for producing .alpha.-olefin polymers | Masami Tachibana, Kazutsune Kikuta, Yoshiharu Higuchi, Masazumi Miyajima | 1983-06-07 |
| 4368304 | Process for producing .alpha.-olefin polymers | Toshihiro Uwai, Tohru Hanari, Kazutsune Kikuta, Masazumi Miyajima | 1983-01-11 |
| 4363901 | Process for producing .alpha.-olefin polymers | Kazutsune Kikuta, Masami Tachibana | 1982-12-14 |
| 4321345 | Method for producing .alpha.-olefin polymers | Masami Tachibana, Kazutsune Kikuta | 1982-03-23 |
| 4309521 | Process for producing .alpha.-olefin polymers | Kazutsune Kikuta, Kenji Matsuda, Toshihiro Uwai, Tohru Hanari | 1982-01-05 |
| 4304891 | Process for producing .alpha.-olefin polymers | Masami Tachibana, Kazutsune Kikuta, Yoshiharu Higuchi | 1981-12-08 |
| 4287328 | Method for producing .alpha.-olefin polymers | Kazutsune Kikuta, Masami Tachibana | 1981-09-01 |