Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |