Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845351 | IC card | Kazuya Hara, Shigeyuki Kawana | 1989-07-04 |
| 4839504 | IC card system compatible with bank account system | — | 1989-06-13 |
| 4816656 | IC card system | Kazutomo Tani | 1989-03-28 |
| 4810862 | System for judging propriety of use of an integrated circuit card with a card terminal | Yoshimi Shigenaga | 1989-03-07 |