Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6045042 | Non-contact IC card having multiple receivers with different signal detection threshholds for minimizing current consumption | — | 2000-04-04 |
| 5773880 | Non-contact IC card having insulated exposed leads | — | 1998-06-30 |
| 5424690 | Ring oscillator circuit microcomputers and IC cards using the same | — | 1995-06-13 |
| 5355413 | Authentication method performed between IC card and terminal unit and system therefor | — | 1994-10-11 |
| 5247163 | IC card having a monitor timer and a reset signal discrimination circuit | Kazuo Asami | 1993-09-21 |