Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6956804 | Optical recording medium with recording marks having different states, and method of recording using the optical recording medium | — | 2005-10-18 |
| 6891790 | Optical recording medium, optical recording device and optical recording method | Narutoshi Fukuzawa | 2005-05-10 |