Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822844 | Rubber compositions | Takao Muraki | 1989-04-18 |
| 4800611 | Plate cleaning apparatus and cleaning roller therefor | Masao Toriwaki, Tomoaki Ishino | 1989-01-31 |
| 4799284 | Plate cleaning apparatus and cleaning roller therefor | Masao Toriwaki, Tomoaki Ishino | 1989-01-24 |