Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5821525 | Reader/writer for use with non-contact IC card and reader/writer system | — | 1998-10-13 |
| 5225667 | IC card | Shigeru Furuta | 1993-07-06 |
| 5160856 | Reference voltage regulator semiconductor integrated circuit | Atsuo Yamaguchi | 1992-11-03 |