Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5453809 | Albada finder | — | 1995-09-26 |
| 5354322 | Optical illumination system for endoscope | — | 1994-10-11 |
| 5331465 | Macro lens | — | 1994-07-19 |
| 5329400 | Focal length changeable lens | — | 1994-07-12 |
| 5285316 | Zoom lens | Nobuyuki Shirie | 1994-02-08 |
| 5179472 | Zoom lens | Kazunori Ohno | 1993-01-12 |
| 4984878 | Ojective lens for endoscope | — | 1991-01-15 |
| 4598980 | Objective optical system for endoscope | Yoshikazu Doi, Toshiro Kishikawa, Yasumasa Sunaga | 1986-07-08 |