Issued Patents 2011
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8024577 | Password recovery system | Motoji Ohmori, Natsume Matsuzaki | 2011-09-20 |
| 7995766 | Group subordinate terminal, group managing terminal, server, key updating system, and key updating method therefor | Taichi Sato, Kaoru Yokota, Natsume Matsuzaki, Tetsuya Inoue, Masao Nonaka | 2011-08-09 |
| 7984489 | Device registration system and device registration apparatus | Natsume Matsuzaki, Masaya Miyazaki, Toshihisa Nakano, Hiroki Yamauchi, Soichiro Fujioka +1 more | 2011-07-19 |
| 7979731 | Time authentication device, time authentication method, computer program, recording medium, integrated circuit, and time authentication system | Natsume Matsuzaki, Hiroki Yamauchi, Toshihisa Nakano | 2011-07-12 |
| 7958240 | Group judgment device | Hiroki Yamauchi, Yuusaku Ohta, Natsume Matsuzaki | 2011-06-07 |
| 7949703 | Group admission system and server and client therefor | Natsume Matsuzaki, Toshihisa Nakano | 2011-05-24 |
| 7940927 | Information security device and elliptic curve operating device | Natsume Matsuzaki | 2011-05-10 |
| 7936874 | Information transfer system, encryption device, and decryption device | Motoji Ohmori | 2011-05-03 |
| 7929688 | Parameter generation apparatus, encryption system, decryption system, encryption apparatus, decryption apparatus, encryption method, decryption method, and program thereof | Masato Yamamichi, Motoji Ohmori, Makoto Tatebayashi | 2011-04-19 |
| 7925697 | Group judgment device | Hiroki Yamauchi, Yuusaku Ohta, Natsume Matsuzaki | 2011-04-12 |
| 7917764 | Signature generation device and signature verification device | Shingo Hasegawa, Shuji Isobe, Motoji Ohmori, Hiroki Shizuya | 2011-03-29 |
| 7900062 | Unauthorized contents detection system | Masao Nonaka, Toshihisa Nakano, Kaoru Yokota, Motoji Ohmori, Masaya Miyazaki +3 more | 2011-03-01 |
| 7898570 | Digital camera system with means for restricting image acquisition | Kaoru Yokota, Toshihisa Nakano, Motoji Ohmori, Shuichi Ohki | 2011-03-01 |
| 7886365 | Content-log analyzing system and data-communication controlling device | Motoji Ohmori, Hirohito Kitatora, Natsume Matsuzaki, Makoto Tatebayashi, Kaoru Yokotoa | 2011-02-08 |