Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7996907 | Data recording method, data recording system, data recording apparatus, data reading method, data reading system, counting method, counting system, method of supplying encryption key, system for supplying encryption key and program | Kazuki Matsumoto | 2011-08-09 |