Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8369516 | Encryption apparatus having common key encryption function and embedded apparatus | Kouichi Itoh, Masahiko Takenaka | 2013-02-05 |
| 8218762 | Encrypting apparatus for common key cipher | Kouichi Itoh, Masahiko Takenaka | 2012-07-10 |
| 8032921 | Computer-readable recording medium storing access rights management program, access rights management apparatus, and access rights management method | Masahiko Takenaka, Takashi Yoshioka, Bintatsu Noda | 2011-10-04 |
| 7966644 | Method, apparatus, and computer program for managing access to documents | Bintatsu Noda, Takashi Yoshioka, Masahiko Takenaka | 2011-06-21 |
| 7908450 | Memory management unit, code verifying apparatus, and code decrypting apparatus | Jun Kamada, Takayuki Hasebe, Takehiko Hayashi | 2011-03-15 |
| 7158638 | Encryption circuit | Naoya Torii, Tomohiro Hayashi, Chikahiro Deguchi, Yumi Fujiwara | 2007-01-02 |
| 7147150 | Personal identification terminal and method having selectable identification means or identification levels | Takayuki Hasebe, Jun Kamada, Takehiko Hayashi | 2006-12-12 |
| 6829592 | Data protection system, data preparation device, and data working device | Takayuki Hasebe, Naoya Torii, Masahiko Takenaka, Yuji Kijima | 2004-12-07 |
| 6266691 | Conference support system with user operation rights and control within the conference | Satoru Watanabe, Toshihiro Azami, Jun Kakuta, Tsuneo Katsuyama | 2001-07-24 |