Katsuhiro Araya

6 Patents

• US123267852025

  Transmission Side Transmission Device and Redundancy Method of Transmission Side Transmission Device

  Nippon Telegraph And Telephone Corporation

  0 cites
• US120388132024

  Transmitting Side Transmission Device, Receiving Side Transmission Device, Redundancy Method of Transmitting Side Transmission Device, Redundancy Method of Receiving Side Transmission Device, Program, and Transmission Device

  Nippon Telegraph And Telephone Corporation

  0 cites
• US118122052023

  Optical Cross-connect Device, Optical Transmission System, and Optical Transmission Line Connection Error Detection Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US117505352023

  Transmitting Device, Receiving Device, Packet Transfer System,packet Transfer Method, and Packet Transfer Program

  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

  0 cites
• US116960562023

  Optical Transmission System and Optical Transmission Method

  Nippon Telegraph And Telephone Corporation

  0 cites
• US115887202023

  Network Device and Network Test Method

  Nippon Telegraph And Telephone Corporation

  0 cites