Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805001 | Magnification converting mechanism for a variable magnification copying apparatus | Shoichiro Yoshiura, Ken-ichi Iwamoto | 1989-02-14 |
| 4796053 | Magnification converting mechanism for a variable magnification copying apparatus | Hiroshi Nakamura, Ken-ichi Iwamoto, Kenji Okada, Kouichi Matsumoto, Shoichiro Yoshiura | 1989-01-03 |