Hidetoshi Onda

3 Patents

• US117575542023

  Optical Branch Insertion Device and Optical Transmission System Using Optical Branch Insertion Device

  Nippon Telegraph And Telephone Corporation

  0 cites
• US117429762023

  Optical Branch Insertion Device and Optical Transmission System Using Optical Branch Insertion Device

  Nippon Telegraph And Telephone Corporation

  0 cites
• US116525632023

  Optical Demultiplexer, Optical Separation Device, Optical Transmission System, and Optical Transmission Method

  Nippon Telegraph And Telephone Corporation

  0 cites