Issued Patents 2016
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9426131 | Server apparatus and program to re-encrypt ciphertext data | Ryotaro Hayashi, Tatsuyuki Matsushita, Takuya Yoshida, Koji Okada | 2016-08-23 |
| 9386016 | System and device for authentication | Hidehisa Takamizawa, Asahiko Yamada, Tomoaki Morijiri, Koji Okada, Tatsuro Ikeda +1 more | 2016-07-05 |
| 9246683 | Re-encryption key generator, re-encryption apparatus, and program | Ryotaro Hayashi, Tatsuyuki Matsushita, Takuya Yoshida, Koji Okada | 2016-01-26 |