Issued Patents All Time
Showing 126–150 of 225 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8261084 | Unauthorized contents detection system | Masao Nonaka, Yuichi Futa, Toshihisa Nakano, Kaoru Yokota, Masaya Miyazaki +3 more | 2012-09-04 |
| 8184805 | Program converter, encrypting device, and encrypting method | Kaoru Yokota, Yuichi Futa | 2012-05-22 |
| 8151331 | Information providing system and design information providing server | Shunji Ohara, Takashi Katayama, Masayuki Kozuka | 2012-04-03 |
| 8144869 | Content protection system, key data generation apparatus, and terminal apparatus | Toshihisa Nakano, Natsume Matsuzaki, Makoto Tatebayashi, Naoki Yamamoto, Hideshi Ishihara | 2012-03-27 |
| 8140675 | Content reproduction apparatus | Kaoru Yokota, Koichi Morioka, Hideshi Ishihara, Makoto Tatebayashi | 2012-03-20 |
| 8135130 | Data encryption apparatus, data converting method, data converting program, recording medium and integrated circuit | Masao Nonaka, Kaoru Yokota | 2012-03-13 |
| 8132024 | Digital work protection system, recording apparatus, reproduction apparatus, and recording medium | Toshihisa Nakano, Masato Yamamichi, Yuichi Futa, Makoto Tatebayashi, Shunji Harada +1 more | 2012-03-06 |
| 8126318 | Recording device, system, integrated circuit, program, and recording method | Masao Nonaka, Yoshiaki Iwata, Yoichi Yamamoto | 2012-02-28 |
| 8116452 | Content playback device | Masaya Yamamoto, Toshihisa Nakano, Masayuki Kozuka | 2012-02-14 |
| 8065498 | Backup system, recording/reproduction device, backup device, backup method, program, and integrated circuit | Yoshikatsu Ito, Shunji Harada, Yuko Tsusaka, Soichiro Fujioka, Toshihisa Nakano | 2011-11-22 |
| 8054967 | Computer system and computer program executing encryption or decryption | Masao Nonaka, Kaoru Yokota | 2011-11-08 |
| 8048174 | Theft prevention system | Masato Yamamichi, Satomi Yamamichi, Keiko Yamamichi, Toshihisa Nakano, Kaoru Yokota +2 more | 2011-11-01 |
| 8024577 | Password recovery system | Natsume Matsuzaki, Yuichi Futa | 2011-09-20 |
| 8010688 | Content use management system, content use management method, and client device | Sen'ichi Onoda, Kouji Miura, Katsumi Tokuda, Hiroki Murakami | 2011-08-30 |
| 7991155 | Backup management device, backup management method, computer program, recording medium, integrated circuit, and backup system | Soichiro Fujioka, Shunji Harada, Yoshikatsu Ito, Yuko Tsusaka, Toshihisa Nakano | 2011-08-02 |
| 7974926 | Content use system, information terminal, and settlement system | Masaya Miyazaki, Toshihisa Nakano, Yoshikatsu Ito, Masaya Yamamoto, Osamu Sasaki +1 more | 2011-07-05 |
| 7970708 | Value information management system, recording medium, printer device, account adjusting device, electronic data printing method, and computer program | Kaoru Yokota, Atsushi Saso | 2011-06-28 |
| 7936874 | Information transfer system, encryption device, and decryption device | Yuichi Futa | 2011-05-03 |
| 7937763 | Processor and processing apparatus performing virus protection | Soichiro Fujioka, Kazuhiko Yamauchi, Masao Nonaka, Tomokazu Kanamaru, Yoshiaki Iwata | 2011-05-03 |
| 7933409 | Content playback device | Masaya Yamamoto, Toshihisa Nakano, Masayuki Kozuka | 2011-04-26 |
| 7929688 | Parameter generation apparatus, encryption system, decryption system, encryption apparatus, decryption apparatus, encryption method, decryption method, and program thereof | Masato Yamamichi, Yuichi Futa, Makoto Tatebayashi | 2011-04-19 |
| 7917764 | Signature generation device and signature verification device | Yuichi Futa, Shingo Hasegawa, Shuji Isobe, Hiroki Shizuya | 2011-03-29 |
| 7912789 | Electronic value, electronic purse device, and system for using the same | Toshihisa Nakano | 2011-03-22 |
| 7898570 | Digital camera system with means for restricting image acquisition | Kaoru Yokota, Yuichi Futa, Toshihisa Nakano, Shuichi Ohki | 2011-03-01 |
| 7900062 | Unauthorized contents detection system | Masao Nonaka, Yuichi Futa, Toshihisa Nakano, Kaoru Yokota, Masaya Miyazaki +3 more | 2011-03-01 |