Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9344326 | Communication relay apparatus, active system switching method, and communication relay control board | Yuu Aoki | 2016-05-17 |
| 9215137 | Relay device, relay method, and relay processing program | — | 2015-12-15 |
| 7974187 | Data transmission | — | 2011-07-05 |
| 7924737 | Signal degrade detecting method, signal restoration detecting method, devices for those methods, and traffic transmission system | — | 2011-04-12 |
| 7787451 | Packet transmission method and packet transmission system | — | 2010-08-31 |
| 7719956 | Trunk network system for multipoint-to-multipoint relay | — | 2010-05-18 |
| 7602727 | Method and apparatus for resolving deadlock of auto-negotiation sequence between switches | — | 2009-10-13 |
| 7450519 | Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor | — | 2008-11-11 |
| 7272146 | MPLS-VPN service network | — | 2007-09-18 |
| 4228458 | Optical color-separation system for use in a color television camera | Takemi Saito, Shigehiro Kanayama | 1980-10-14 |
| 4185297 | Color separation optical system for color television camera | Takemi Saito, Shigehiro Kanayama | 1980-01-22 |