Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845740 | Radiotelephone system adapted to read a credit card | Katsumi Tokuyama, Kanji Arai, Haruhiko Akiyama | 1989-07-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845740 | Radiotelephone system adapted to read a credit card | Katsumi Tokuyama, Kanji Arai, Haruhiko Akiyama | 1989-07-04 |