Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823689 | Elastic roller with internal openings for use with image forming apparatus | Takao Tanaka, Michio Shigenobu, Hiromitsu Hirabayashi, Takashi Hibi, Kensaku Kusaka | 1989-04-25 |