Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE38611 | Method for substituting defective recording of discoid recording medium and discoid recording medium recording and reproducing device | Yuji Takagi, Takahiro Nagai, Yoshihisa Fukushima, Isao Satoh | 2004-10-05 |
| 6735158 | Multilayer optical disk, and method and device for recording optical information thereon | Ryutaro Futakuchi | 2004-05-11 |
| 6683834 | Information recording method, information recording/reproducing apparatus, and information recording medium | Takashi Ishida, Yoshikazu Goto, Isao Satoh | 2004-01-27 |