Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5010237 | IC card system for preventing unauthorized data alteration | — | 1991-04-23 |
| 4845351 | IC card | Kazuya Hara, Harumi Nakano | 1989-07-04 |
| 4794236 | IC card system | Yoshimi Shigenaga | 1988-12-27 |
| 4780602 | IC card | Harumi Nakano | 1988-10-25 |
| 4746788 | Identification system for authenticating both IC card and terminal | — | 1988-05-24 |
| 4734569 | IC card | Harumi Nakano | 1988-03-29 |
| 4697072 | Identification card and authentication system therefor | — | 1987-09-29 |