Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885338 | Modified diene polymer rubbers | Hiroyoshi Takao, Akio Imai | 1989-12-05 |
| 4845173 | Process for producing thermoplastic elastomers | Nobuyuki Yoshida, Akio Imai | 1989-07-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885338 | Modified diene polymer rubbers | Hiroyoshi Takao, Akio Imai | 1989-12-05 |
| 4845173 | Process for producing thermoplastic elastomers | Nobuyuki Yoshida, Akio Imai | 1989-07-04 |