Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5218349 | Multi-backspace key system for keyboard operation | Yuji Honda | 1993-06-08 |
| 4747146 | System for detecting difference between image on primary sheet and image on secondary sheet | Nobuyuki Nishikawa, Yoshimitsu Mori, Kiyotaka Hara | 1988-05-24 |