Patents/Assignees

KOHOKU KOGYO CO., Ltd.

4 patents in portfolio

US12436340utility2025
Optical Filter Device
0 cites
US12404201utility2025
Preform for Optical Fiber and Manufacturing Method of Optical Fiber
0 cites
US11835766utility2023
Slope Gain Equalizer
0 cites
US11598908utility2023
Interference Filter Module
0 cites