Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6341045 | Disk-shaped recording medium and formatting method thereof wherein historic information including a storage capacity of the disk-shaped recording medium is recorded thereon | Hisakazu Hironaka, Toshiharu Shimizu, Yoshihide Majima, Toshimitsu Itoh | 2002-01-22 |