Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496455 | Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium | Yuji Takagi, Yoshihisa Fukushima, Shunji Ohara, Isao Satoh | 2002-12-17 |
| 6351447 | Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium | Yuji Takagi, Yoshihisa Fukushima, Shunji Ohara | 2002-02-26 |