Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684638 | Two-unit zoom lens system having high zoom ratio | Yuji Kamo | 1997-11-04 |
| 5666233 | Two-unit zoom lens system having a high zoom ratio | — | 1997-09-09 |
| 5663836 | Compact zoom lens system comprising two lens units | — | 1997-09-02 |
| 5640276 | Four-unit zoom lens system having a high zoom ratio | — | 1997-06-17 |