Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821033 | Electromagnetic actuator and shutter device for camera | Koji Sekizawa, Kiyosi Toma | 2004-11-23 |
| 6709173 | Focal-plane shutter for camera | Shinji Ito | 2004-03-23 |
| 6699819 | Mercury-containing copper oxide superconductor | Tsuyoshi Sugano, Seiji Adachi, Keiichi Tanabe | 2004-03-02 |