Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7941667 | Electronic document authenticity guarantee method, and electronic document disclosure system | Yasuo Hatano | 2011-05-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7941667 | Electronic document authenticity guarantee method, and electronic document disclosure system | Yasuo Hatano | 2011-05-10 |