Patents/Inventors

Keiichi Matsumoto

TokyoJP14 patents

12 Patents

US125559712026
Light Amplification Device, Light Transmission System, and Light Amplification Method
NEC CORPORATION
0 cites
US125126422025
Monitoring Device, Monitoring Method, Optical Amplifier, and Optical Transmission System
NEC CORPORATION
0 cites
US123748512025
Optical Amplification Apparatus and Optical Amplification Method
NEC CORPORATION
0 cites
US123752012025
Optical Amplifier, Optical Amplifier Controlling Method, and Optical Transmission System
NEC CORPORATION
0 cites
US123085992025
Optical Amplifier, Optical Amplifier Equalizing Method, and Transmission System
NEC CORPORATION
0 cites
US120722432024
Monitoring Device, Monitoring Method, and Optical Transmission System
NEC CORPORATION
0 cites
US120278132024
Optical Amplifier and Optical Amplification Method
NEC CORPORATION
0 cites
US119907272024
Monitoring Apparatus for Optical Amplifier, Optical Amplifying System, and Method of Monitoring Amplified Optical Signal
NEC CORPORATION
0 cites
US118816752024
Optical Amplification Device, Optical Transmission System, and Optical Amplification Method
NEC CORPORATION
0 cites
US118763392024
Optical Amplifier, Control Method for Optical Amplifier, and Optical Communication System
NEC CORPORATION
0 cites
US118702082024
Optical Fiber Amplifier, Optical Fiber Amplifier Control Method, and Transmission System
NEC CORPORATION
0 cites
US116831162023
Light Amplification Device, Light Transmission System, and Light Amplification Method
NEC CORPORATION
0 cites