Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8331562 | Image forming apparatus, image forming method and, computer readable medium and computer signal | Katsuhiko Ono, Masato Tsuji | 2012-12-11 |
| 5825911 | Device for ascertaining the authenticity of an article and image forming apparatus used for preventing bank bills, securities and the like from being, forged | Masao Hattori | 1998-10-20 |
| 5661552 | Forgery-preventing document reading device based on microwave reflection | — | 1997-08-26 |
| 5568268 | Image forming device with forgery prevention | Masato Tsuji, Katsuyuki Kouno, Hideyasu Nakamura, Nobuyuki Kodera | 1996-10-22 |