Inventor

CHOI JUNG WOO

KR62 patents

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

CHOI JUNG WOO

SENIC INC

Method for preparing a SiC ingot and device for preparing a SiC ingot wherein electrical resistance of crucible body is 2.9 ohms or more

Wafer and method of manufacturing wafer

Apparatus for growing a SiC single crystal ingot comprising a filter unit having a porous body surrounding an opening unit that is located under a seed crystal

Method of growing semi-insulating silicon carbide single crystal using dopant coated with a carbon-based material

Method for growing single crystal silicon carbide ingot having large diameter

Method for producing ingot, raw material for ingot growth, and method for preparing the raw material

Silicon carbide powder and method for manufacturing silicon carbide ingot using the same

Silicon carbide powder, method for manufacturing silicon carbide ingot using the same, and silicon carbide wafer

Silicon carbide wafer and method of preparing the same

Silicon carbide wafer and semiconductor device

Silicon carbide wafer and method of manufacturing same

Method of measuring a graphite article, apparatus for a measurement, and ingot growing system

Method for preparing SiC ingot, method for preparing SiC wafer and the SiC wafer prepared therefrom

Wafer and method of manufactruring wafer

Method of cleaning wafer and wafer with reduced impurities

Silicon carbide ingot, wafer, method for producing a silicon carbide ingot, and method for manufacturing a wafer

Method for preparing silicon carbide wafer and silicon carbide wafer

Silicon carbide ingot, method of preparing the same, and method for preparing silicon carbide wafer

Seed crystal including protective film including a first layer with first filler and second layer with second filler

Silicon carbide wafer and semiconductor device applied the same

Manufacturing method of silicon carbide wafer, silicon carbide wafer and system for manufacturing wafer

Method of manufacturing a silicon carbide ingot comprising moving a heater surrounding a reactor to induce silicon carbide raw materials to sublimate and growing the silicon carbide ingot on a seed crystal

Method and system for producing silicon carbide ingot

CHOI JUNG WOO

Speaker system

Method and apparatus of adjusting distribution of spatial sound energy

Method and apparatus for creating personal sound zone

SAMSUNG ELECTRONICS CO LTD

Method of and apparatus for controlling sound field through array speaker

Apparatus and method for estimating power for amplifier

Method for displaying handler and electronic device therefor

CHOI JUNG-WOO

Sound enhancement apparatus and method

Apparatus and method for generating directional sound

Directional sound generating apparatus and directional speaker array including the same

KO SANG-CHUL

Apparatus and method for focusing sound in array speaker system

Apparatus and method for generating an acoustic radiation pattern

Apparatus and method for controlling acoustic radiation pattern output through array of speakers

SKC CO LTD

Apparatus for producing an ingot comprising a crucible body with a lid assembly having a movable core member and method for producing silicon carbide ingot using the apparatus

Composition for preparing silicon carbide ingot and method for preparing silicon carbide ingot using the same

LG ELECTRONICS INC

Speaker

KIM YOUNG-TAE

Apparatus and method for sound focusing

KO SANG CHUL

Method and apparatus for simultaneously controlling near sound field and far sound field

HYUNDAI MOTOR CO LTD

Vehicle and method for controlling the same

WITS CO LTD

Wireless power transmitter with data communication provision

SAMSUNG DISPLAY CO LTD

Laser machining apparatus and laser machining method

KIM JUNG-HO

Apparatus and method for controlling distortions of amplifier

PEPTRON CO LTD

Vitamin C derivatives with peptide, preparation method thereof and composition comprising the same

KAKAO CORP

Method and apparatus for processing abusing message in anonymous chatroom

KWANGJIN CO LTD

Vehicle door coupling device

SAMSUNG ELECTRO MECH

Power driver for light emitting diode illumination and control method thereof

KIM YOUNG TAE

Method and apparatus for controlling distribution of spatial sound energy

DIALOG SEMICONDUCTOR INC

Circuit for driving a power switch