Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10389452 | Coherent optical reception device | Kengo Horikoshi, Mitsuteru YOSHIDA, Seiji Okamoto, Eiichi Hosoya, Etsushi Yamazaki +3 more | 2019-08-20 |
| 9894007 | Packet transfer processing apparatus and method | Yasuyuki Itoh, Shoko Ohteru, Masami Urano, Tsugumichi Shibata | 2018-02-13 |
| 9401875 | Packet transfer processing method and packet transfer processing device | Masami Urano, Tsugumichi Shibata | 2016-07-26 |
| 8731006 | Signal separating circuit, signal separating method, signal multiplexing circuit and signal multiplexing method | Yasuyuki Matsuya, Takako Ishihara, Shinichiro Mutoh | 2014-05-20 |
| 7894490 | Signal separating circuit, signal separating method, signal multiplexing circuit and signal multiplexing method | Yasuyuki Matsuya, Takako Ishihara, Shinichiro Mutoh | 2011-02-22 |