Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7840808 | Authentication system, device, and program | Hidehisa Takamizawa, Koji Okada, Tomoaki Morijiri, Asahiko Yamada | 2010-11-23 |
| 7770207 | System, apparatus, program, and method for authentication | Koji Okada, Hidehisa Takamizawa | 2010-08-03 |