Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6671243 | Information storage medium, information recording method, and information reproduction method | Hideo Ando, Chosaku Noda, Yutaka Okamoto, Koichi Hirayama | 2003-12-30 |
| 6587417 | Optical disk, optical disk recording method and optical disk apparatus | Yutaka Okamoto, Hideo Ando, Chosaku Noda | 2003-07-01 |