Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4464786 | System for identifying currency note | Ko Ohtombe, Susumu Yamakawa, Yasushi Nakamura | 1984-08-07 |
| 4319137 | Apparatus for identifying sheet-like printed matters | Yasushi Nakamura, Ko Ohtombe | 1982-03-09 |