Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840472 | Reflecting/refractive optical system | — | 1989-06-20 |
| 4832465 | Zoom lens for use in copying | Nobutaka Minefuji | 1989-05-23 |
| 4819035 | Color separation optical reading apparatus | Kazushi Yoshida, Takashi Iizuka | 1989-04-04 |