Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4812632 | Portable magnetic card reading and writing apparatus with verification of constant and user supplied data | Koichiro Kakinuma, Makoto Ando, Masahiko Sawa, Hideaki Ohmuro, Akira Ohryo | 1989-03-14 |