Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7649991 | Method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack | Mototsugu Nishioka, Yoichi Seto | 2010-01-19 |
| 7164765 | Method of a public key encryption and a cypher communication both secure against a chosen-ciphertext attack | Mototsugu Nishioka, Yoichi Seto | 2007-01-16 |