Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6577573 | Optical information reproducing method in which either a first edge signal or a second edge signal is selected depending on a length of a mark on an optical information medium | Shigeru Nakamura, Takeshi Maeda | 2003-06-10 |