Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7159241 | Method for the determination of soundness of a sheet-shaped medium, and method for the verification of data of a sheet-shaped medium | Mitsuo Usami, Masaru Ohki | 2007-01-02 |
| 7119662 | Service system, information processing system and interrogator | Mitsuo Usami, Masaru Ohki | 2006-10-10 |
| 7051205 | Sheet-shaped medium, method and apparatus for determination of genuineness or counterfeitness of the same, and apparatus for issuing certificate | Mitsuo Usami, Masaru Ohki | 2006-05-23 |