Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8171243 | Data control apparatus, data control method, and data control program | — | 2012-05-01 |
| 6968455 | Method of referring to digital watermark information embedded in a mark image | Satoe Okayasu, Takashi Shinoda | 2005-11-22 |