Inventor

HWANGBO CHANG-KWON

KR4 patents

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

SAMSUNG ELECTRONICS CO LTD

1 patent

US7927767B2Apr 19, 2011

Reflective photomasks and methods of determining layer thicknesses of the same

SAMSUNG ELECTRONICS CO LTD4 citations58

KIM JI-DEOG

1 patent

US8953238B2Feb 10, 2015

High-speed optical modulator and method of modulating light by using the same

KIM JI-DEOG2 citations56

YOU JANG-WOO

1 patent

US9638941B2May 2, 2017

Photonic crystal type light modulator and 3D image acquisition apparatus employing the same

YOU JANG-WOO1 citations48

SONG YOUNG JIN

1 patent

US12372688B2Jul 29, 2025

Optical filter and sensor system comprising the same, and method for preparing halogenated amorphous silicon thin film for optical filter

SONG YOUNG JIN0 citations41