Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834333 | Data processing device, data storage device, data processing method, and program providing medium for storing content protected under high security management | Kenji Yoshino, Yoshihito Ishibashi, Toru Akishita, Taizo Shirai, Takeshi Ito | 2004-12-21 |
| 6823420 | Entertainment apparatus | Hideaki Io, Yasuyuki Yamamoto, Yuichi Inomata, Shinichi Fukushima | 2004-11-23 |