Inventor
CHANG DONG-PIL
KR8 patents
⚠️ This page may combine multiple inventors who share the name “CHANG DONG-PIL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELECTRONICS & TELECOMMUNICATIONS RES INST
4 patentsUS12294334B2May 6, 2025
In-phase/quadrature-phase generating device and phase shift device using the same
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations60
US12255662B2Mar 18, 2025
Master reference oscillator system
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations60
US12206383B2Jan 21, 2025
Dual-band 360 degree phase shifter using series/parallel resonance circuit for phased array antenna system
ELECTRONICS & TELECOMMUNICATIONS RES INST1 citations55
US11527996B2Dec 13, 2022
Frequency mixing device
ELECTRONICS & TELECOMMUNICATIONS RES INST0 citations49
KOREA ELECTRONICS TELECOMM
2 patentsUS7532086B2May 12, 2009
Digital attenuation apparatus having ultra broadband and excellent attenuation characteristics
KOREA ELECTRONICS TELECOMM11 citations82
US7474177B2Jan 6, 2009
Efficiency-improved tuning assembly for radio frequency filters and method for forming the same
KOREA ELECTRONICS TELECOMM0 citations50