Inventor

PARK CHUL SOON

KR50 patents

⚠️ This page may combine multiple inventors who share the name “PARK CHUL SOON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PARK CHUL SOON

JAHWA ELECTRONICS CO LTD

Autofocus apparatus and camera module including the same

Apparatus for driving optical-reflector for OIS with multi-axial structure

Apparatus for driving optical-reflector

Actuator for driving reflector

Actuator for optical image stabilization with reflector

Apparatus for supporting optical reflector

Actuator for driving reflector

Zoom driving actuator and position control method for zoom driving

Zoom driving actuator and position control method for zoom driving

Zooming actuator having dual structure

Apparatus for driving optical system with memory unit

Actuator for reflectometer

KOREA ELECTRONICS TELECOMM

High power semiconductor lasers with ridge waveguide structure

Method of fabricating compound semiconductor devices using lift-off of insulating film

Flat display device and method for manufacturing the same

Fabrication of high power semiconductor lasers with ridge waveguide structure

Method of manufacturing a heterojunction bipolar transistor

Infrared photodetector with doping superlattice structure

Production method for ion-implanted MESFET having self-aligned lightly doped drain structure and T-type gate

Method for making T-gate of field effect transistor

High power semiconductor laser device and method for fabricating the same

Direct-conversion frequency mixer

UNIV INFORMATION & COMM

Adaptive bias circuit for a power amplifier

Power amplifier having a bias current control circuit

Bias control circuit for power amplifier

Bias circuit for providing a constant bias current to a power amplifier

Transimpedance amplification apparatus with source follower structure

Broadband amplification apparatus for bandwidth expansion

Wideband variable frequency voltage controlled oscillator

KOREA ADVANCED INST SCI & TECH

Planar transmission line-to-waveguide transition apparatus having an embedded bent stub

Series-fed E-shaped patch antenna array with co-polarized parasitic patches

Substrate embedded horn antenna having selection capability of vertical and horizontal radiation pattern

OOK modulation device and wireless transmitting device including the same

Direct-conversion receiver and sub-harmonic frequency mixer thereof

Differential Colpitts voltage-controlled oscillator

SAMSUNG ELECTRONICS CO LTD

Display apparatus capable of changing a display mode of a display assembly

Display apparatus

Method and apparatus for beamforming

Antenna structure in wireless communication system and operation method thereof

KOREA RES INST BIOSCIENCE & BIOTECHNOLOGY

Near-infrared fluorescent probe for detecting alkaline phosphatase and manufacturing method thereof

Graphene transistor comprising functionalized N-heterocyclic carbene compound, fabrication method therefor, and biosensor comprising same

Carbene compound, carbene-metal nanoparticle complex and preparation method thereof

SAMSUNG ELECTRO MECH

Power amplifying device having linearizer

CHO YOUNG LAG

Cephalosporin derivatives and pharmaceutical compositions thereof

CHOI SUNG-TAE

Beamformer and beamforming method

RES & IND COOPERATION GROUP

Circuit for improving amplification and noise characteristics for MOSFET, and frequency mixer, amplifier and oscillator using the circuit

SAMSUNG DISPLAY CO LTD

Stirrer, apparatus of manufacturing quantum dot including the same, and method of manufacturing quantum dot using the quantum dot manufacturing apparatus

JUNG DONG YUN

Resistive frequency mixing apparatus and signal processing method using the same

LEGOCHEM BIOSCIENCES INC

Cephalosporin derivatives and pharmaceutical compositions thereof

WISEJET INC

System and method for transmitting and receiving video based on wireless transmission