Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6539364 | Electronic cash implementing method and equipment using user signature and recording medium recorded thereon a program for the method | Tatsuaki Okamoto | 2003-03-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6539364 | Electronic cash implementing method and equipment using user signature and recording medium recorded thereon a program for the method | Tatsuaki Okamoto | 2003-03-25 |