Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8488205 | Method of embedding a plurality of different two-dimensional codes in an image | Masahiro Takizawa | 2013-07-16 |
| 8334991 | Apparatus and method for restricting file operations | Yuka Kamiya, Munetaka Sakata | 2012-12-18 |
| 8237939 | Apparatus and method for restricting file operations | Yuka Kamiya, Munetaka Sakata | 2012-08-07 |
| 8191765 | Device and method for controlling copying operation of document with use of barcode | — | 2012-06-05 |
| 8115966 | Method of embedding a plurality of different two-dimensional codes in an image | Masahiro Takizawa | 2012-02-14 |
| 7806315 | Device and method for controlling copying operation of document with use of barcode | — | 2010-10-05 |