Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009305 | Method, program, and apparatus for detecting a copy-prohibited document and prohibiting a reproduction of the detected copy prohibited document | Takashi Saitoh, Haike Guan, Hiroshi Shimura | 2011-08-30 |