Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831791 | Optical system for optical communications and method of manufacturing the same | Hirofumi Tsuchida | 2004-12-14 |
| 6731819 | Optical information processing apparatus capable of various types of filtering and image processing | Ikutoshi Fukushima, Takeshi Hashimoto | 2004-05-04 |