Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7016538 | Image processor for detecting specified pattern | Akira Murakawa, Hirotomo Ishii | 2006-03-21 |
| 6980308 | Apparatus and method for image processing and print system for preventing forgery | Kenji Masaki, Hirotomo Ishii | 2005-12-27 |
| 6870958 | Image processor for detecting specified pattern | Akira Murakawa, Hirotomo Ishii | 2005-03-22 |