Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5319627 | Method for managing a defect in an optical disk by assigning logical addresses based upon cumulative number of defects in the disk | Keiji Ueki, Motoyasu Ohno | 1994-06-07 |
| 5241531 | Storage medium having read/write storage region and read-only storage region and a method for managing defective sectors in the storage medium | Motoyasu Ohno, Keiji Ueki | 1993-08-31 |