Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887340 | Elastic fixing roller | Masaya Nishi, Toshiyuki Hatta | 1989-12-19 |
| 4844953 | Elastic roller for fixing and method of producing the same | Toshiyuki Hatta, Akihiko Isomura, Shinichi Toyooka, Masaya Nishi | 1989-07-04 |