Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9305171 | Encryption apparatus, encryption method, decryption apparatus, decryption method and system | Masahiro Kataoka, Takahiro Murata, Takafumi Ohta | 2016-04-05 |
| 8645713 | Encrypting method, recording medium of encrypting program, decrypting method, and recording medium of decrypting program | Masahiro Kataoka | 2014-02-04 |