Patents by Inventor Hong-Kyu Choi

Hong-Kyu 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: 11961720
    Abstract: Disclosed herein is a multi-channel device for detecting plasma at an ultra-fast speed, including: a first antenna module connected to a first output terminal in contact with a substrate on a chuck of a process chamber and extending to ground, and receiving a first leakage current leaking through the substrate to increase reception sensitivity of the leakage current; a first current detection module detecting the first leakage current; a current measurement module receiving the first leakage current output from the first current detection module, and extracting the received first leakage current for each predetermined period to generate a first leakage current measurement information; and a control module comparing the first leakage current measurement information with a reference value to generate first arcing occurrence information.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: April 16, 2024
    Assignee: T.O.S Co., Ltd.
    Inventors: Yong Kyu Kim, Bum Ho Choi, Yong Sik Kim, Kwang Ki Kang, Hong Jong Jung, Seok Ho Lee, Seung Soo Lee
  • Publication number: 20240109828
    Abstract: A method of removing a metal substance in a petrochemical product including: supplying a petrochemical product stream to an incoming tank through a supply pipe, circulating the petrochemical product stream through an incoming tank circulation pipe, and removing a metal substance included in the petrochemical product stream using a magnetic filter; transporting the petrochemical product stream to an outgoing tank through an incoming tank discharge pipe which is branched from the incoming tank circulation pipe and connected to an outgoing tank; circulating the petrochemical product stream through an outgoing tank circulation pipe provided in the outgoing tank and removing the metal substance included in the petrochemical product stream using a magnetic filter; and transporting the petrochemical product stream to a branch pipe branched from the outgoing tank circulation pipe to remove the metal substance using an ion exchange resin filter.
    Type: Application
    Filed: August 12, 2021
    Publication date: April 4, 2024
    Inventors: Tae Woo Kim, Sung Kyu Lee, Byung Woo Choi, Hong Soo Joo, Dong Ha Lee
  • Publication number: 20230005411
    Abstract: The present disclosure relates to a technology for supplying power to a display device and provides a device which checks a control value for each mode stored in a memory according to a mode indication signal in a simple form received from an external device and controls operation states of power converting circuits in each mode according to the control value for each mode.
    Type: Application
    Filed: July 5, 2022
    Publication date: January 5, 2023
    Applicant: LX Semicon Co., Ltd.
    Inventors: Seong Sik YOON, Hong Kyu CHOI
  • Patent number: 11195491
    Abstract: Power consumption of a display device is reduced by controlling power supplies in driving sections and in non-driving sections to be different.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: December 7, 2021
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jung Min Choi, Hong Kyu Choi, Seong Sik Yoon, Jung Hyun Tark
  • Publication number: 20200320953
    Abstract: Power consumption of a display device is reduced by controlling power supplies in driving sections and in non-driving sections to be different.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 8, 2020
    Inventors: Jung Min CHOI, Hong Kyu CHOI, Seong Sik YOON, Jung Hyun TARK
  • Patent number: 10270095
    Abstract: A lithium battery including a cathode; an anode; and an electrolyte disposed between the cathode and the anode is disclosed. In the lithium battery, the cathode includes a nickel-based lithium transition metal oxide having primary particles having an average particle diameter of 2 ?m or more, and the anode includes graphite and a silicon-based compound.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 23, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soon-Rewl Lee, Ick-Kyu Choi, Young-Ki Kim, Young-Hun Lee, Na-Ri Park, Yong-Chul Park, Hong-Kyu Choi
  • Patent number: 10008922
    Abstract: A switching power supply may include: an inductor connected to an input voltage terminal; a first switch configured to form a first electrical path between the inductor and an output voltage terminal; a second switch configured to form a second electrical path between the inductor and a ground voltage terminal; a negative current sensor configured to sense an inductor current flowing through the first electrical path, and generate an over-current protection signal when the inductor current is sensed as a negative current equal to or more than a preset value; and a controller configured to enable a discontinuous conduction mode (DCM) when the over-current protection signal is generated, and turn off the first switch and turn on the second switch, in response to the enabled DCM.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: June 26, 2018
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Won Suk Jang, Young Jin Woo, Tae Kyu Nam, Hong Kyu Choi
  • Patent number: 9991515
    Abstract: Disclosed is a rechargeable lithium battery that includes a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte, wherein the positive active material includes a compound represented by the following Chemical Formula 1, the negative active material includes a silicon-based compound, the compound represented by the above Chemical Formula 1 is included in an amount of about 3 wt % to about 30 wt % based on 100 wt % of the positive active material, and the silicon-based compound is included in an amount of about 3 wt % to about 10 wt % based on 100 wt % of the negative active material. Lix1CO1-yMyO2??Chemical Formula 1 In the above Chemical Formula 1, 1.05<x1<1.10, 0.03<y<0.05 and, M includes one selected from B, Mg, Ca, Sr, Ba, Ti, V, Cr, Fe, Cu, Al, and a combination thereof.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: June 5, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Ki Kim, Ick-Kyu Choi, Young-Hun Lee, Na-Ri Park, Soon-Rewl Lee, Yong-Chul Park, Hong-Kyu Choi
  • Patent number: 9893348
    Abstract: In an aspect, a positive active material for a rechargeable lithium battery including: a compound that reversibly intercalates and deintercalates lithium; and a coating layer coating the compound and including a metal nitrate is disclosed. Since the positive active material is structurally stable during the charge and discharge, the obtained battery may have excellent battery capacity and cycle-life characteristics and also have high power.
    Type: Grant
    Filed: May 8, 2013
    Date of Patent: February 13, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Ki Kim, Young-Hun Lee, Na-Leum Yoo, Na-Ri Park, Soon-Rewl Lee, Hong-Kyu Choi, Yong-Chul Park, Ick-Kyu Choi
  • Publication number: 20180019660
    Abstract: A switching power supply may include: an inductor connected to an input voltage terminal; a first switch configured to form a first electrical path between the inductor and an output voltage terminal; a second switch configured to form a second electrical path between the inductor and a ground voltage terminal; a negative current sensor configured to sense an inductor current flowing through the first electrical path, and generate an over-current protection signal when the inductor current is sensed as a negative current equal to or more than a preset value; and a controller configured to enable a discontinuous conduction mode (DCM) when the over-current protection signal is generated, and turn off the first switch and turn on the second switch, in response to the enabled DCM.
    Type: Application
    Filed: July 13, 2017
    Publication date: January 18, 2018
    Applicant: SILICON WORKS CO., LTD.
    Inventors: Won Suk JANG, Young Jin WOO, Tae Kyu NAM, Hong Kyu CHOI
  • Patent number: 9518620
    Abstract: Disclosed is a disconnector-type clutch for a rear wheel-driving device in a 4-wheel driving electric vehicle, which can eliminate a loss in the driving force due to a slip of friction plates disposed in a multiple disc clutch by transmitting power to rear wheels using the disconnector-type clutch, instead of the multiple disc clutch in 4-wheel driving, and can prevent a loss in the energy by preventing a differential from unnecessarily rotating when rear wheels are drawn by a driving force of front wheels in 2-wheel driving in which a rear-wheel driving motor is not driven by installing the disconnector-type clutch at a rear end of the differential.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: December 13, 2016
    Assignee: HYUNDAI WIA CORPORATION
    Inventor: Hong Kyu Choi
  • Publication number: 20150364762
    Abstract: Disclosed is a rechargeable lithium battery that includes a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte, wherein the positive active material includes a compound represented by the following Chemical Formula 1, the negative active material includes a silicon-based compound, the compound represented by the above Chemical Formula 1 is included in an amount of about 3 wt % to about 30 wt % based on 100 wt % of the positive active material, and the silicon-based compound is included in an amount of about 3 wt % to about 10 wt % based on 100 wt % of the negative active material. Lix1CO1-yMyO2??Chemical Formula 1 In the above Chemical Formula 1, 1.05<x1<1.10, 0.03<y<0.05 and, M includes one selected from B, Mg, Ca, Sr, Ba, Ti, V, Cr, Fe, Cu, Al, and a combination thereof.
    Type: Application
    Filed: April 30, 2015
    Publication date: December 17, 2015
    Inventors: Young-Ki Kim, Ick-Kyu Choi, Young-Hun Lee, Na-Ri Park, Soon-Rewl Lee, Yong-Chul Park, Hong-Kyu Choi
  • Patent number: 9184443
    Abstract: A cathode active material including at least two agglomerates of primary particles and a cathode and a lithium secondary battery containing the same are disclosed. In the cathode active material, a secondary particle includes a nickel-based lithium transition metal oxide, an average particle diameter of each primary particle is in a range from about 2 to about 3 ?m, and an average particle diameter of the secondary particle is in a range from about 5 to about 8 ?m.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: November 10, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Hun Lee, Soon-Rewl Lee, Na-Ri Park, Young-Ki Kim, Ick-Kyu Choi, Yong-Chul Park, Hong-Kyu Choi
  • Publication number: 20150228979
    Abstract: A lithium battery including a cathode; an anode; and an electrolyte disposed between the cathode and the anode is disclosed. In the lithium battery, the cathode includes a nickel-based lithium transition metal oxide having primary particles having an average particle diameter of 2 ?m or more, and the anode includes graphite and a silicon-based compound.
    Type: Application
    Filed: January 9, 2015
    Publication date: August 13, 2015
    Inventors: Soon-Rewl Lee, Ick-Kyu Choi, Young-Ki Kim, Young-Hun Lee, Na-Ri Park, Yong-Chul Park, Hong-Kyu Choi
  • Patent number: 9061577
    Abstract: Provided is a driving device for rear wheels of a 4 wheel driving electric vehicle, which can minimize a loss in the drive power during 4-wheel by transmitting the drive power to the rear wheels based on a disconnector input shaft, rather than a clutch, after synchronizing a rotating speed of the disconnector input shaft based on a first motor with a rotating speed of a hub based on rear wheels. Other aspects of the present invention provide a driving device for rear wheels of a 4 wheel driving electric vehicle, which can prevent a loss in the drive power during 2-wheel driving by preventing a load based on a differential device from being generated by connecting the differential device between a reduction gear group and the disconnector input shaft.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: June 23, 2015
    Assignee: Hyundai Wia Corporation
    Inventor: Hong Kyu Choi
  • Publication number: 20150133263
    Abstract: Provided is a driving device for rear wheels of a 4 wheel driving electric vehicle, which can minimize a loss in the drive power during 4-wheel by transmitting the drive power to the rear wheels based on a disconnector input shaft, rather than a clutch, after synchronizing a rotating speed of the disconnector input shaft based on a first motor with a rotating speed of a hub based on rear wheels. Other aspects of the present invention provide a driving device for rear wheels of a 4 wheel driving electric vehicle, which can prevent a loss in the drive power during 2-wheel driving by preventing a load based on a differential device from being generated by connecting the differential device between a reduction gear group and the disconnector input shaft.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: Hyundai Wia Corporation
    Inventor: Hong Kyu Choi
  • Publication number: 20150010819
    Abstract: A cathode active material including at least two agglomerates of primary particles and a cathode and a lithium secondary battery containing the same are disclosed. In the cathode active material, a secondary particle includes a nickel-based lithium transition metal oxide, an average particle diameter of each primary particle is in a range from about 2 to about 3 ?m, and an average particle diameter of the secondary particle is in a range from about 5 to about 8 ?m.
    Type: Application
    Filed: December 10, 2013
    Publication date: January 8, 2015
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Young-Hun LEE, Soon-Rewl LEE, Na-Ri PARK, Young-Ki KIM, Ick-Kyu CHOI, Yong-Chul PARK, Hong-Kyu CHOI
  • Publication number: 20140305762
    Abstract: Disclosed is a disconnector-type clutch for a rear wheel-driving device in a 4-wheel driving electric vehicle, which can eliminate a loss in the driving force due to a slip of friction plates disposed in a multiple disc clutch by transmitting power to rear wheels using the disconnector-type clutch, instead of the multiple disc clutch in 4-wheel driving, and can prevent a loss in the energy by preventing a differential from unnecessarily rotating when rear wheels are drawn by a driving force of front wheels in 2-wheel driving in which a rear-wheel driving motor is not driven by installing the disconnector-type clutch at a rear end of the differential.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Applicant: HYUNDAI WIA CORPORATION
    Inventor: Hong Kyu Choi
  • Publication number: 20140212745
    Abstract: In an aspect, a positive active material for a rechargeable lithium battery including: a compound that reversibly intercalates and deintercalates lithium; and a coating layer coating the compound and including a metal nitrate is disclosed. Since the positive active material is structurally stable during the charge and discharge, the obtained battery may have excellent battery capacity and cycle-life characteristics and also have high power.
    Type: Application
    Filed: May 8, 2013
    Publication date: July 31, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Young-Ki Kim, Young-Hun Lee, Na-Leum Yoo, Na-Ri Park, Soon-Rewl Lee, Hong-Kyu Choi, Yong-Chul Park, Ick-Kyu Choi
  • Patent number: 8653945
    Abstract: Provided is an apparatus for managing the operation of a ship block, including a ship block size and location measuring system, a transporter monitoring system, a block transportation monitoring system and a transportation lot number management system. The ship block size and location measuring system includes a direction angle sensor, a range finder, a radio frequency identification (RFID) reader and a control system, and the control system includes a block size and location measuring server, a vector calculating module, a coordinate calculating module, a size and location extracting module, and a memory module.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: February 18, 2014
    Assignee: Hyundai Heavy Industries Co., Ltd.
    Inventors: Tae Hyun Baek, Seung Jin Ha, Sang Hyup Lee, Byeong Yeol Lee, Hong Kyu Choi