Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7019611 | Modem coupling circuit for power-line carrier | Takashi Kaku, Toshiro Tojo, Toyomi Obikawa, Toshiya Sato, Hideaki Yamauchi +1 more | 2006-03-28 |
| D477064 | Line filter | Kazuya Sugawara | 2003-07-08 |
| 5703557 | Noise absorbing device | Takayuki Osada, Norio Saito, Takeji Ihara, Yoshio Wagatsuma, Hitoshi Moriya | 1997-12-30 |