Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7308096 | Elliptic scalar multiplication system | Katsuyuki Okeya | 2007-12-11 |
| 7047412 | Digital watermark data embedding method, and digital watermark data embeddability analyzing method | Isao Echizen, Hiroshi Yoshiura, Ryoichi Sasaki, Shinobu Eikawa | 2006-05-16 |
| 6865677 | Contents rendering control method, contents reproducing equipment, and contents distribution equipment | Isao Echizen, Hiroshi Yoshiura, Ryoichi Sasaki, Shinobu Eikawa | 2005-03-08 |