Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8565124 | Node, network, correspondence relationship generation method and frame transfer program | Masaki Umayabashi, Kazuo Takagi, Nobuyuki Enomoto, Youichi Hidaka, Atsushi Iwata | 2013-10-22 |
| 8538263 | Optical communication system, optical receiver of same, and optical communication method of same | — | 2013-09-17 |
| 8515293 | Coherent receiver | Wakako Yasuda, Kiyoshi Fukuchi | 2013-08-20 |
| 8094584 | Node, network system, frame transfer method, and frame transfer program | Masaki Umayabashi, Nobuyuki Enomoto, Youichi Hidaka, Kazuo Takagi, Atsushi Iwata | 2012-01-10 |
| 8072878 | Packet ring network system, packet transfer system, redundancy node, and packet transfer program | Masahiro Sakauchi | 2011-12-06 |
| 7965658 | Shortening of communication cutoff time | — | 2011-06-21 |
| 7944913 | Node, communication method, and program for node | — | 2011-05-17 |
| 7920576 | Packet ring network system, packet forwarding method and node | Masahiro Sakauchi | 2011-04-05 |
| 7898942 | Ring network system, failure recovery method, failure detection method, node and program for node | Kazuo Takagi, Masahiro Sakauchi | 2011-03-01 |
| 7848340 | System and method for transmission of data in packet ring network system | Masahiro Sakauchi, Kazuo Takagi | 2010-12-07 |
| 7843942 | Node and fair rate calculating method | — | 2010-11-30 |