Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5677792 | Zooming optical system | — | 1997-10-14 |
| 5638216 | Zoom lens | Akihisa Horiuchi, Akihiro Nishio, Yasunori Murata | 1997-06-10 |
| 5600490 | Zoom lens for projecting video image | Saburo Sugawara | 1997-02-04 |