Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4283463 | Molded products of polypropylene | Akinobu Shiga, Kiyoshi Matsuyama, Yukio Naito, Seiichiro Ima | 1981-08-11 |
| 4273905 | Process for producing propylene polymer or copolymer | Mamoru Asada, Akinobu Shiga, Kiyoshi Matsuyama | 1981-06-16 |
| 4259461 | Process for producing propylene-ethylene block copolymers | Akinobu Shiga, Yoshiharu Fukui, Koji Yamada, Hajime Sadatoshi, Kazuki Wakamatsu +1 more | 1981-03-31 |
| 4254237 | Process for producing propylene-ethylene block copolymers | Akinobu Shiga, Hajime Sadatoshi, Kazuki Wakamatsu, Hiroshi Yoshioka | 1981-03-03 |
| 4195145 | Process for the purification of highly crystalline polyolefins | Akinobu Shiga, Kiyoshi Matsuyama, Takatoshi Suzuki | 1980-03-25 |
| 4182852 | Process for refining a homopolymer of copolymer of propylene | Akinobu Shiga, Kiyoshi Matsuyama, Takatoshi Suzuki | 1980-01-08 |