Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8847751 | Line status detection apparatus, communication apparatus, and line status detection method | Fumio Ichihara, Akihiro Yamashita, Hidekazu Matsunobu, Nobutaka Kodama, Masahiro Maki +5 more | 2014-09-30 |
| 8225117 | Electronic device and image processing apparatus | Masaharu Uchiyama | 2012-07-17 |
| 8139759 | Line state detecting apparatus and transmitting apparatus and receiving apparatus of balanced transmission system | Fumio Ichihara, Akihiro Yamashita, Mutsuhiko Oishi, Toshiyuki Wakisaka, Masahiro Maki | 2012-03-20 |
| 7949056 | Balanced transmitting apparatus | Akihiro Yamashita, Fumio Ichihara, Mutsuhiko Oishi, Toshiyuki Wakisaka, Masahiro Maki | 2011-05-24 |
| 7864658 | Multicarrier communication method and system, and communication apparatus incorporated therein | Toshiyuki Wakisaka, Masahiro Maki, Hisao Koga, Yuji Igata, Fumio Ichihara +2 more | 2011-01-04 |
| 7633964 | Communication apparatus, communication system and communication method | Mutsuhiko Oishi, Fumio Ichihara, Akihiro Yamashita, Masahiro Maki, Toshiyuki Wakisaka | 2009-12-15 |
| 7501913 | Power line communication apparatus and connecting device | Akihiro Yamashita, Yuji Igata | 2009-03-10 |
| 7391332 | Radiation information management device and communication device | Toshiyuki Wakisaka, Masahiro Maki, Mutsuhiko Oishi, Fumio Ichihara, Akihiro Yamashita | 2008-06-24 |