Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9680636 | Transmission system, transmission method and encrypting apparatus | Kazuhiro Yasuno | 2017-06-13 |
| 9411968 | Apparatus and method for performing different cryptographic algorithms in a communication system | Shigeaki Kawamata, Jun Roppongi, Akihiro Kameda, Kazuyuki Minohara, Nobuyuki Fukuda | 2016-08-09 |
| 9397831 | Encrypted communication device and method for performing encrypted communication while reducing traffic in communication system | Tetsuta SAKABE, Toshihiro Kobayashi, Nobuyuki Fukuda, Kazuhiro Yasuno | 2016-07-19 |
| 9226142 | Mobile communication system, communication control method, and radio base station | — | 2015-12-29 |
| 8897441 | Packet transmitting and receiving apparatus and packet transmitting and receiving method | Toshifumi Inoue, Kenji Fukuda, Kiyohisa Hoshino, Nobuyuki Fukuda, Yoshiaki Fukunaga +1 more | 2014-11-25 |
| 8693313 | Apparatus and method for switching between redundant communication devices | Katsuhiko Negoto, Akihiro Kameda, Atsushi Morohashi, Toshifumi Inoue, Kiyohisa Hoshino +3 more | 2014-04-08 |
| 8537708 | Packet transmission method and nodes | Atsushi Yabe, Yasuhiro Yoshika, Yashushi Miyagawa, Akio OHHASHI, Akihiro Kobayashi +1 more | 2013-09-17 |
| D357250 | Portable telephone | Takashi Ifuji, Hiroshi Kubo | 1995-04-11 |
| D317606 | Portable telephone | Toru Irie, Hisamitsu Takagi | 1991-06-18 |