Patents/Inventors

Hidenobu Hirota

MusashinoJP15 patents

15 Patents

US124745272025
Optical Coupling Device and Optical Coupling System
NTT, Inc.
0 cites
US124429872025
Branch Ratio Measuring Device, Branch Ratio Measuring Method, and Optical Multiplexing/demultiplexing Circuit Manufacturing Method
NTT, Inc.
0 cites
US122421112025
Optical Multiplexing/demultiplexing Method, Optical Multiplexing/demultiplexing Circuit, and Manufacturing Method Thereof
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US122064602025
Optical Network System, Operating Method of Optical Network System, and Optical Line Terminator
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US121076242024
Termination Determination Device and Termination Determination Method
Nippon Telegraph And Telephone Corporation
0 cites
US120666662024
Optical Fiber Lateral Input/output Device
Nippon Telegraph And Telephone Corporation
0 cites
US120611312024
Judgment Device and Judgment Method
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US120152532024
Cable Towing Machine and Cable Laying Method
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US119672232024
Danger Prediction Method and Danger Prediction Device
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US118860122024
Optical Fiber Lateral Input/output Device
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US118800692024
Optical Fiber Side Input and Output Device
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US117475642023
Manufacturing Method and Manufacturing Apparatus of Optical Splitters
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US117111442023
Optical Fiber Display System and Optical Fiber Switching Method
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US116830912023
Communication Apparatus Identification Device, Optical Fiber Connection System, Communication Apparatus Identification Method, and Optical Fiber Connection Method
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites
US115759812023
Simulation Signal Light Generation Device and Simulation Signal Light Generation Method
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
0 cites