Inventor

CHO DOO-HEE

KR60 patents

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

CHO DOO-HEE

KOREA ELECTRONICS TELECOMM

Method of manufacturing a planar waveguide using ion exchange method

Glass material suitable for a waveguide of an optical amplifier

Organic light emitting diodes and methods of manufacturing the same

Composition for oxide semiconductor thin film and field effect transistor using the composition

Electronic device and method of fabricating the same

Organic light emitting device

Organic light emitting device

Piezoelectric and electrostatic microelectromechanical system actuator

Tm3+-doped silicate glass and the use thereof

Method of fabricating organic light emitting device

Method of manufacturing organic-light-emitting-diode flat-panel light-source apparatus

High-speed wavelength channel selector and high-speed photonic integrated circuit-type space and wavelength multiplexed channel selector employing the same

Multimode interference coupler, multi-layer optical planar waveguide using the same and method of manufacturing the same

Periodically poled optical fiber and method for the manufacture thereof

Dual-mode pixel including emissive and reflective devices and dual-mode display with the same

Optical amplifier

Method for forming two thin conductive films isolated electrically from each other on a fiber

Optical gain fiber doped with rare earth ions

Thin film transistor having N-type and P-type CIS thin films and method of manufacturing the same

Light emitting display device having auxiliary wire buried in substrate and method of manufacturing the same

Light source apparatus

Organic light emitting diode device and fabrication method thereof

Light emitting device with light path changing structure

Methods of forming an organic scattering layer, an organic light emitting diode with the scattering layer, and a method of fabricating the organic light emitting

Photo thin film transistor having photoconductive layer including chalcogenide element and unit cell of image sensor using the same

ELECTRONICS & TELECOMMUNICATIONS RES INST

Flexible electronic device including conformal flexible protective layer

Optical device and methods for manufacturing the same

Composition for forming film having wrinkle structure and method of forming the film

Method of forming a film having a surface structure of random wrinkles

Method of manufacturing organic light emitting device

Method for producing hexagonal tungsten oxide and method for producing electrochromic device including the same

Pressure sensitive display device having touch electrode and light emitting layer

Biometric information measurement method and biometric information measurement system

Nano structure for controlling optical properties of optical device and method for manufacturing the same

Electrochromic display device

Organic light emitting devices and methods of fabricating the same

Method of manufacturing organic light emitting diode with light-scattering layer

Organic light emitting diode and method of fabricating the same

Method of fabricating light functional substrate and organic light emitting diode having the same

Organic light emitting diode with light-scattering layer with nano structure and air gaps

SAMSUNG ELECTRONICS CO LTD

Integrated circuit including a modified cell and a method of designing the same

Integrated circuit including a modified cell and a method of designing the same

Integrated circuit

YOON SUNG MIN

Transparent nonvolatile memory thin film transistor and method of manufacturing the same

Transparent nonvolatile memory thin film transistor and method of manufacturing the same

HUH JIN WOO

Organic light emitting diodes and methods of manufacturing the same

LEE JEONG IK

Organic electroluminescence device

UNIV HANYANG IND UNIV COOP FOUND

Humidifying membrane for reverse electrodialysis and method for manufacturing the same

HAN JUN HAN

Organic-light-emitting-diode flat-panel light-source apparatus

CHO DOO HEE

Method of fabricating an organic light emitting diode using phase separation