Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415350 | Card-type storage medium | — | 2002-07-02 |
| 6371377 | Card type recording medium and access control method for card type recording medium and computer-readable recording medium having access control program for card type recording medium recorded | Shuichi Tsubura | 2002-04-16 |
| 6168078 | Card reader | Ryouichi Yanagi, Yoshio Hiramoto, Masashi Kato | 2001-01-02 |