Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6658403 | Apparatus and method for managing electronic original data | Takashi Yoshioka, Etsuo Ono | 2003-12-02 |
| 6584563 | User support system for cryptographic communication in network systems | Hiroaki Kikuchi, Hideyuki Aikawa | 2003-06-24 |
| 6505213 | File management apparatus and method | Jun Kamada, Etsuo Ono | 2003-01-07 |