Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8654455 | Light quantity adjustment apparatus, lens unit and optical apparatus provided with the same | Katsura Nakajima | 2014-02-18 |
| 7513701 | Imaging apparatus and light quantity regulating device used therein | — | 2009-04-07 |
| 7459813 | Magnet rotor and electromagnetically-driving device using the same, and optical apparatus with light quantity-control device | Tokuro Kusunoki | 2008-12-02 |
| 7446443 | Electromagnetic-driving device and light quantity-control device incorporating the same | Yosuke Sajiki | 2008-11-04 |
| 7396169 | Light quantity adjusting device and photographing device having the same | — | 2008-07-08 |
| 7316514 | Light controller and image pickup device including the same | — | 2008-01-08 |
| 7290947 | Light controller and image pickup device including the same | — | 2007-11-06 |
| 6981807 | Electromagnetic drive device and light quantity adjustment device using the same | Tetsuyuki Tohyama | 2006-01-03 |
| 6960848 | Electromagnetic drive device and light quantity adjustment device using the same | Tetsuyuki Tohyama | 2005-11-01 |
| 6926454 | Electromagnetic driving unit and light quantity regulating apparatus using the same | Yosuke Sasiki | 2005-08-09 |
| 6565270 | Light quantity controller and camera system including the same | — | 2003-05-20 |
| 6554502 | Light quantity controller | — | 2003-04-29 |
| 6550986 | Light quantity controller | — | 2003-04-22 |
| 6027261 | Exposure adjusting device for a camera | — | 2000-02-22 |