Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6539164 | Disk media, and method of and device for playing back information on or from a disk media | Kouichi Shirakawa, Tadashi Kasezawa, Masato Nagasawa, Hiroyuki Ohata, Hidetoshi Mishima +1 more | 2003-03-25 |