Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6791935 | Optical head, and optical recording and reproducing apparatus | Hiroshi Hatano, Kazuyuki Ogura, Akira Sato | 2004-09-14 |
| 6792021 | Near field light generating device | — | 2004-09-14 |