Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9411968 | Apparatus and method for performing different cryptographic algorithms in a communication system | Isamu Fukuda, Shigeaki Kawamata, Jun Roppongi, Akihiro Kameda, Nobuyuki Fukuda | 2016-08-09 |
| 5402482 | Ring trip deciding circuit | Kenji Takato | 1995-03-28 |
| 5402485 | Two-wire termination impedance generation circuit of subscriber circuit | Kenji Takato, Kazuhiro Yoshida, Yoshinobu IMAI, Takeshi Nishioka | 1995-03-28 |
| 5347577 | Battery feed circuit for supplying feed current to telephone set | Kenji Takato, Kazuhiro Yoshida | 1994-09-13 |
| 5335271 | Ring trip detection circuit | Kenji Takato, Kazumi Kinoshita, Kiyoshi Kurosaki, Taichi Kosako | 1994-08-02 |