Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851960 | Charging device | Shunji Nakamura, Junji Araya, Noribumi Koitabashi | 1989-07-25 |
| 4823689 | Elastic roller with internal openings for use with image forming apparatus | Kazuo Kishino, Takao Tanaka, Michio Shigenobu, Takashi Hibi, Kensaku Kusaka | 1989-04-25 |