Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7009757 | Optimal elements (such as vari focal lens component, vari-focal diffractive optical element and variable declination prism) and electronic image pickup unit using optical elements | Kimihiko Nishioka, Koji Ishizaki | 2006-03-07 |
| 6888590 | Optical elements (such as vari focal lens component, vari-focal diffractive optical element and variable declination prism) and electronic image pickup unit using optical elements | Kimihiko Nishioka, Koji Ishizaki | 2005-05-03 |
| 6643833 | Method of localized placement manipulation without extra latency | Kimihiko Nishioka, Koji Ishizaki | 2003-11-04 |
| 6626532 | Vari-focal spectacles | Kimihiko Nishioka, Koji Ishizaki | 2003-09-30 |