Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6788329 | Rod lens array and printer head and optical printer using the same | — | 2004-09-07 |
| 6683718 | Diffractive optical element and image reader using the same | Takayuki Sugiyama, Hiroshi Sato, Hidekazu Shimomura | 2004-01-27 |