Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6999240 | Zoom lens and video camera using it | Katsu Yamada | 2006-02-14 |
| 6710933 | Zoom lens and video camera comprising the same | Kazutake Boku | 2004-03-23 |
| 6519094 | Zoom lens and video camera comprising the same | Kazutake Boku | 2003-02-11 |