Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8297522 | Multilayer reflector, authentication card, bar code label, authentication system, and authentication region forming system | Seiji Umemoto, Kazumasa Shibata, Itsuo Takeuchi, Tokio Sakauchi, Tohru Ida | 2012-10-30 |