Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7639808 | Elliptic curve cryptosystem apparatus, elliptic curve cryptosystem method, elliptic curve cryptosystem program and computer readable recording medium storing the elliptic curve cryptosystem program | Kouichi Itoh, Masahiko Takenaka, Naoya Torii | 2009-12-29 |
| 7536011 | Tamper-proof elliptic encryption with private key | Masahiko Takenaka, Kouichi Itoh, Naoya Torii | 2009-05-19 |
| 7505587 | Elliptic curve cryptosystem apparatus, storage medium storing elliptic curve cryptosystem program, and elliptic curve cryptosystem arithmetic method | Tsuyoshi Takagi | 2009-03-17 |