Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4874880 | Bis(di-, tri- or tetra-substituted-cyclopentadienyl)-zirconium dihalides | Shinya Miya, Takaya Mise, Hiroshi Yamazaki | 1989-10-17 |
| 4831091 | Process for polymerizing olefins | Makoto Iijima, Noriaki Saito | 1989-05-16 |