Patents by Inventor Youn-Sok CHOI

Youn-Sok CHOI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9812372
    Abstract: An electrostatic chuck assembly includes a reference temperature sensor, a measurement zone temperature sensor, and a measurement zone temperature calculator. The reference temperature sensor measures a reference temperature of the electrostatic chuck. The measurement zone temperature sensor is spaced from the reference temperature sensor on the electrostatic chuck and senses temperature signals of a plurality measurement zones of the electrostatic chuck. The measurement zone temperature calculator calculates a temperature of each of the measurement zones by setting a measurement range within a temperature range, previously determined based on the reference temperature measured by the reference temperature sensor, and measures the temperature signal of each of the measurement zones sensed by the measurement zone temperature sensor within the measurement range.
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: November 7, 2017
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Youn Sok Choi, Jeong Hyoun Sung, Sang Yoon Soh
  • Publication number: 20170178978
    Abstract: An electrostatic chuck assembly includes a reference temperature sensor, a measurement zone temperature sensor, and a measurement zone temperature calculator. The reference temperature sensor measures a reference temperature of the electrostatic chuck. The measurement zone temperature sensor is spaced from the reference temperature sensor on the electrostatic chuck and senses temperature signals of a plurality measurement zones of the electrostatic chuck. The measurement zone temperature calculator calculates a temperature of each of the measurement zones by setting a measurement range within a temperature range, previously determined based on the reference temperature measured by the reference temperature sensor, and measures the temperature signal of each of the measurement zones sensed by the measurement zone temperature sensor within the measurement range.
    Type: Application
    Filed: August 9, 2016
    Publication date: June 22, 2017
    Inventors: Youn Sok CHOI, Jeong Hyoun SUNG, Sang Yoon SOH
  • Patent number: 9347419
    Abstract: An electric field generating apparatus for a combustion chamber, may include an electric field generator located within a space of the combustion chamber where combustion flames may be produced to create electric fields within the space of the combustion chamber through an applied predetermined voltage, a lead-in wire connected to the electric field generator to flow the predetermined voltage to the electric field generator, and a high voltage providing unit connected to the lead-in wire for selectively applying the predetermined voltage to the lead-in wire in accordance with an output signal of a controller generated depending on an operation condition of an engine.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: May 24, 2016
    Assignees: Hyundai Motor Company, SNU R&DB Foundation
    Inventors: Hongbin Kim, Sang Ken Kauh, Youn-Sok Choi, Kyoung-Min Shon
  • Publication number: 20130146010
    Abstract: An electric field generating apparatus for a combustion chamber, may include an electric field generator located within a space of the combustion chamber where combustion flames may be produced to create electric fields within the space of the combustion chamber through an applied predetermined voltage, a lead-in wire connected to the electric field generator to flow the predetermined voltage to the electric field generator, and a high voltage providing unit connected to the lead-in wire for selectively applying the predetermined voltage to the lead-in wire in accordance with an output signal of a controller generated depending on an operation condition of an engine.
    Type: Application
    Filed: June 15, 2012
    Publication date: June 13, 2013
    Applicants: SNU R&DB Foundation, Hyundai Motor Company
    Inventors: Hongbin KIM, Sang Ken KAUH, Youn-Sok CHOI, Kyoung-Min SHON