Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7079327 | Large zoom ratio zoom lens | — | 2006-07-18 |
| 6985303 | Rear focus zoom lens | — | 2006-01-10 |
| 6917477 | Two-group zoom lens | — | 2005-07-12 |
| 6809882 | Wide-angle zoom lens | — | 2004-10-26 |
| 6747815 | Retrofocus wide-angle lens | — | 2004-06-08 |
| 6621641 | Retro-focus-type camera lens | — | 2003-09-16 |
| 6449104 | Gaussian lens | — | 2002-09-10 |
| 6396642 | Wide-angle zoom lens | — | 2002-05-28 |
| 6320701 | Rear-focus-type zoom lens | — | 2001-11-20 |
| 6233101 | Modified gaussian lens | — | 2001-05-15 |
| 6181483 | Wide-angle lens with long back focus | — | 2001-01-30 |
| 6038082 | Wide-angle zoom lens | — | 2000-03-14 |
| 5657170 | Photographic lens apparatus | Satoshi Yahagi | 1997-08-12 |