Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338424 | Multi-step gas-phase polymerization of olefins | Akifumi Kato, Ryoichi Yamamoto | 1982-07-06 |
| 4311817 | Process for polymerizing olefins and catalyst therefor | Norio Kashiwa | 1982-01-19 |