Inventor
KIM RYANGSU
JP26 patents
⚠️ This page may combine multiple inventors who share the name “KIM RYANGSU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MURATA MANUFACTURING CO
22 patentsUS11837770B2Dec 5, 2023
Directional coupler
MURATA MANUFACTURING CO2 citations73
US11121444B2Sep 14, 2021
Directional coupler
MURATA MANUFACTURING CO3 citations73
US10964996B2Mar 30, 2021
Bidirectional coupler
MURATA MANUFACTURING CO6 citations72
US9337777B2May 10, 2016
Amplifier
MURATA MANUFACTURING CO4 citations72
US11509034B2Nov 22, 2022
Directional coupler
MURATA MANUFACTURING CO4 citations71
US12542342B2Feb 3, 2026
Directional coupler
MURATA MANUFACTURING CO0 citations62
US12451581B2Oct 21, 2025
Directional coupler having a main line and sub-lines, where a switching circuit is connected in parallel to a sub-line to provide a shorted state or an open state
MURATA MANUFACTURING CO0 citations62
US12068521B2Aug 20, 2024
Directional coupler
MURATA MANUFACTURING CO1 citations62
US12051843B2Jul 30, 2024
Directional coupler
MURATA MANUFACTURING CO0 citations62
US11699983B2Jul 11, 2023
Directional coupler
MURATA MANUFACTURING CO0 citations62
US11489243B2Nov 1, 2022
Directional coupler
MURATA MANUFACTURING CO0 citations62
US10461393B2Oct 29, 2019
Bidirectional coupler, monitor circuit, and front-end circuit
MURATA MANUFACTURING CO1 citations62
US12368224B2Jul 22, 2025
Directional coupler
MURATA MANUFACTURING CO0 citations61
US11456517B2Sep 27, 2022
Directional coupler
MURATA MANUFACTURING CO1 citations61
US11043978B2Jun 22, 2021
Bidirectional coupler
MURATA MANUFACTURING CO0 citations51
US11984638B2May 14, 2024
Directional coupler
MURATA MANUFACTURING CO0 citations50
US11962061B2Apr 16, 2024
Directional coupler including a main line and a sub-line switchably connected between a coupling terminal and a terminal circuit at different times
MURATA MANUFACTURING CO0 citations50
US11362634B2Jun 14, 2022
Filter module and high frequency module
MURATA MANUFACTURING CO0 citations50
US12456791B2Oct 28, 2025
Directional coupler, radio-frequency module, and communication device
MURATA MANUFACTURING CO0 citations43
US10461392B2Oct 29, 2019
Bidirectional coupler, monitor circuit, and front end circuit
MURATA MANUFACTURING CO0 citations41
US9871509B2Jan 16, 2018
Power-on reset circuit
MURATA MANUFACTURING CO0 citations41
US9014752B2Apr 21, 2015
Front end device
MURATA MANUFACTURING CO0 citations41