Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6470448 | Apparatus and method for proving transaction between users in network environment | Masahiro Komura, Satoru Torii, Shoko Iwase, Etsuo Ono | 2002-10-22 |
| 6421779 | Electronic data storage apparatus, system and method | Jun Kamada, Etsuo Ono | 2002-07-16 |
| 6345360 | Apparatus method and computer readable storage medium with recorded program for managing files with alteration preventing/detecting functions | Jun Kamada, Etsuo Ono | 2002-02-05 |