Patents by Inventor Chang Ha

Chang Ha 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).

  • Publication number: 20240141481
    Abstract: A method of cleaning a semiconductor processing system may include applying a vacuum pressure to a supply pipeline through which a process fluid is transferred to a process chamber and purging the supply pipeline with a cleaning gas, wherein the purging the supply pipeline with the cleaning gas includes by supplying the cleaning gas to a front end of the supply pipeline and discharging the cleaning gas supplied to the supply pipeline by applying an atmospheric pressure from a back end of the supply pipeline.
    Type: Application
    Filed: May 25, 2023
    Publication date: May 2, 2024
    Applicants: SAMSUNG ELECTRONICS CO., LTD., UIF (University Industry Foundation), Yonsei University
    Inventors: IREH SEO, CHANG-HA LEE, TAEUNG YOON, RAK-YOUNG JEON
  • Publication number: 20240130934
    Abstract: Disclosed is a bulk block for manufacturing a prosthesis having high aesthetics and processability required for one-day dental prosthetic materials, which is a dental composite bulk block comprising a glass ceramic matrix and a polymer, wherein the glass ceramic matrix consists of an amorphous glass matrix and a crystalline phase dispersed in the glass matrix, the crystalline phase comprises as a main crystalline phase at least one selected from a leucite crystalline phase and a lithium disilicate crystalline phase, and has an average particle diameter of 0.01-1.0 ?m, and the polymer is included in an amount of 20-40 wt % with respect to the weight of the total bulk block. The bulk block has the advantages of improved mechanical properties, being capable of preventing microleakage, exhibiting excellent aesthetics, and enabling machining.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 25, 2024
    Applicant: HASS CO., LTD.
    Inventors: Hyung Bong LIM, Sung Min KIM, Sung Ho HA, Moon Chang KIM, Hwan Soon KOH
  • Publication number: 20230343096
    Abstract: The present disclosure relates to technology for automatically searching and recovering the recovery area of frames corresponding to a desired time for large-capacity video evidence using a time map generated through an optical character recognition (OCR) function.
    Type: Application
    Filed: October 28, 2022
    Publication date: October 26, 2023
    Applicant: GMDSOFT Inc.
    Inventors: Hyun Soo KIM, Kyung Su LEE, Chang Ha LEE, Jae Min JANG
  • Publication number: 20230220838
    Abstract: The present invention relates to a gas supply pump comprising: a camshaft which can be rotated; a plurality of cam noses provided at regular intervals in a lengthwise direction of the camshaft and having an eccentric shape from the center of the camshaft; a cam roller provided to be in close contact with each cam nose; and a drive shaft and a piston provided to neighbor with one side of the cam roller; and a liquefied gas compression device which pressurizes and exhausts a liquefied gas according to a straight reciprocation of the piston.
    Type: Application
    Filed: May 27, 2021
    Publication date: July 13, 2023
    Applicant: Hyundai Heavy Industries Co., Ltd.
    Inventors: Sang Don Lee, Chang Ha Lee, Tae Hyung Park, Tae Soo Kim, Young Seok Song
  • Patent number: 11611090
    Abstract: A fuel cell humidifier may completely or substantially completely prevent condensate water from entering a running fuel cell stack. The fuel cell humidifier includes a housing; a plurality of hollow fiber membranes arranged in the housing; a cap which is coupled to one end of the housing and has an air discharge port for supplying humidified air to the fuel cell stack; and a bypass tube for transferring condensate water generated from the humidified air to an interior space of the housing through which a discharge gas flows, wherein a first end of the bypass tube is disposed inside the air discharge port, and the bypass tube is in fluid communication with the interior space of the housing through a second end of the bypass tube.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 21, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Kolon Industries, Inc.
    Inventors: Woong-Jeon Ahn, Kyoung-Ju Kim, Young-Seok Oh, Jin-Hyung Lee, Na-Hyeon An, Chang-Ha Lee, Hyun-Yoo Kim
  • Publication number: 20220213540
    Abstract: The present invention relates to a novel probe set for an isothermal one-pot reaction, and uses thereof and, particularly, provides a method for easily, accurately, and quickly diagnosing molecules, in particular, infection diseases, in the field, the method having a form applicable in the field on the basis of a nucleic acid sequence by using a one-pot reaction composition under an isothermal condition. If a molecular diagnostic platform according to the present invention is used, a target sequence can be quickly and accurately detected.
    Type: Application
    Filed: April 22, 2020
    Publication date: July 7, 2022
    Inventors: Jeong Wook LEE, Gyoo Yeol JUNG, Chang Ha WOO, Sungho Jang, Giyoung SHIN
  • Patent number: 11381094
    Abstract: A battery control apparatus, a battery control method and an energy storage system including the battery control apparatus are disclosed. The disclosed battery control apparatus includes a first battery pack, a second battery pack, a first switch connected in series to the first battery pack between the first terminal and the second terminal, a second switch connected in series to the second battery pack between the first terminal and the second terminal, and a control unit. The control unit is configured to turn on both the first switch and the second switch when a voltage difference between the first battery pack and the second battery pack at a time point at which both the first switch and the second switch are turned off is less than a threshold voltage.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: July 5, 2022
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Mi-So Park, Chang Ha Kim
  • Patent number: 11367865
    Abstract: Disclosed is a method of manufacturing a composite anode material for a lithium secondary battery containing nano-sized silicon and a carbonaceous material through a single process, the method including mixing a carbonaceous material and solid silicon and performing carbothermal shock for rapidly heating the carbonaceous material so that the solid silicon is melted using the heated carbonaceous material and is dispersed and attached in the form of particles to the surface of the carbonaceous material, the size of the silicon particles, which grow on the surface of the carbonaceous material, being adjusted during the carbothermal shock. Accordingly, processing costs can be lower than conventional methods of manufacturing silicon nanoparticles, and manufacturing costs can be further reduced by simultaneously performing formation of the silicon nanoparticles and compounding with the carbonaceous material.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: June 21, 2022
    Assignee: HPK INC.
    Inventors: Chang Hyun Cho, Chang Se Woo, Kap Seung Yang, Chang Ha Lim, Chung Hyung Joh
  • Publication number: 20220184578
    Abstract: Disclosed is a method for producing a granular adsorbent for carbon monoxide or carbon disulfide separation. According to the method, incipient wet impregnation and sonication are performed simultaneously and the amount of an impregnation solution and the average particle diameter of a particulate adsorbent are adjusted to optimal ranges to produce a granular adsorbent that is evenly and uniformly impregnated with metal ions, achieving significantly improved carbon monoxide and carbon disulfide adsorption capacities. Also disclosed is a granular adsorbent for carbon monoxide or carbon disulfide separation produced by the method. The granular adsorbent has highly stable physical properties, does not cause problems such as pressure drop or line contamination during use, and is simple to produce because the use of a solvent such as a strong acid or base is not required during production. Also disclosed is a separator including the granular adsorbent.
    Type: Application
    Filed: December 13, 2021
    Publication date: June 16, 2022
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Chang-Ha LEE, Gina Bank, Xuan Canh Nguyen, Jun Ho Kang
  • Patent number: 11268215
    Abstract: Provided is a method of producing a carbon fiber, the method including: a) adding an acrylonitrile-based polymer solution to a solution containing a glycol-based compound having a boiling point of 180 to 210° C. to precipitate an acrylonitrile-based polymer; b) melt spinning the acrylonitrile-based polymer to obtain a spun fiber; and c) performing stabilization and carbonization on the spun fiber to obtain a carbon fiber.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: March 8, 2022
    Assignee: HPK INC.
    Inventors: Chang Hyun Cho, Chang Se Woo, Kap Seung Yang, Chang Ha Lim, Sun Ho Choe, Hong Min Kim, Kyung Ae Oh, Eun Ji Kim
  • Publication number: 20210334653
    Abstract: Disclosed is a hybrid deep learning scheduling method for accelerated processing of a multi-advanced metering infrastructure (AMI) data stream in edge computing, wherein a skewed data distribution change, which occurs in AMI data, is detected, an edge server computes an online gradient, which is comparatively quickly computed, on the basis of the detected change, a cloud server computes a normalized gradient, which requires a large amount of computation, according to selection by a hybrid scheduler, and the hybrid scheduler performs a total of three operations: (1) a data stream distribution profiling operation, (2) a memory buffer update operation, and (3) a hybrid scheduling operation.
    Type: Application
    Filed: April 15, 2021
    Publication date: October 28, 2021
    Inventors: Chan Hyun Youn, Chang Ha Lee, Seong Hwan Kim
  • Publication number: 20210111420
    Abstract: A fuel cell humidifier may completely or substantially completely prevent condensate water from entering a running fuel cell stack. The fuel cell humidifier includes a housing; a plurality of hollow fiber membranes arranged in the housing; a cap which is coupled to one end of the housing and has an air discharge port for supplying humidified air to the fuel cell stack; and a bypass tube for transferring condensate water generated from the humidified air to an interior space of the housing through which a discharge gas flows, wherein a first end of the bypass tube is disposed inside the air discharge port, and the bypass tube is in fluid communication with the interior space of the housing through a second end of the bypass tube.
    Type: Application
    Filed: February 23, 2018
    Publication date: April 15, 2021
    Inventors: Woong-Jeon Ahn, Kyoung-Ju Kim, Young-Seok Oh, Jin-Hyung Lee, Na-Hyeon An, Chang-Ha Lee, Hyun-Yoo Kim
  • Patent number: 10920783
    Abstract: A rotor assembly for a motor includes a rotor shaft having a journal portion formed in an axial direction and having a predetermined radius about an axis, and a center shaft portion extending along the axial direction from the journal portion and having a radius smaller than a radius of the journal portion about the axis; a cylindrical, integral permanent magnet inserted into the center shaft portion to surround an outer circumferential surface of the center shaft portion and being supported by the journal portion; and a sleeve inserted into the rotor shaft to surround an outer circumferential surface of the journal portion and an outer circumferential surface of the integral permanent magnet, supporting the integral permanent magnet in the axial direction, and supporting the outer circumferential surface of the center shaft portion in the radial direction.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: February 16, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chang Ha Lee, Hyunyoo Kim
  • Patent number: 10862144
    Abstract: A humidifier for a fuel cell enables moisture exchange between supply air supplied from an air compressor and exhaust air discharged from the fuel cell. In particular, the humidifier of the fuel cell may include: i) a housing main body; ii) a humidification membrane module that is provided in the housing main body; and iii) a bypass unit that is provided in the housing main body to selectively bypass the supply air supplied from the air compressor and the exhaust air discharged from the fuel cell.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 8, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyunyoo Kim, Sae Han Oh, Chang Ha Lee
  • Patent number: 10862145
    Abstract: A humidifying device, which exchanges moisture between air supplied from an air compressor and air exhausted from the fuel cell, for a fuel cell, includes: a housing main body; at least one humidifying membrane module disposed in the housing main body; and a valve assembly which is disposed in the housing main body and adjusts a supply amount of exhaust air flowed into the at least one humidifying membrane module based on a predetermined supply amount of supply air flowed into the at least one humidifying membrane module.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: December 8, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sae Han Oh, Jeong Hee Park, Kyoung Ku Ha, Hyunyoo Kim, Chang Ha Lee
  • Publication number: 20200378034
    Abstract: Provided is a method of producing a carbon fiber, the method including: a) adding an acrylonitrile-based polymer solution to a solution containing a glycol-based compound having a boiling point of 180 to 210° C. to precipitate an acrylonitrile-based polymer; b) melt spinning the acrylonitrile-based polymer to obtain a spun fiber; and c) performing stabilization and carbonization on the spun fiber to obtain a carbon fiber.
    Type: Application
    Filed: April 10, 2020
    Publication date: December 3, 2020
    Inventors: Chang Hyun CHO, Chang Se WOO, Kap Seung YANG, Chang Ha LIM, Sun Ho CHOE, Hong Min KIM, Kyung Ae OH, Eun Ji KIM
  • Patent number: 10819011
    Abstract: An electronic device is provided. The electronic device includes a housing including a first plate, a second plate facing the first plate, and a side member surrounding a space between the first plate and the second plate and a circuit board, which is accommodated inside a housing and in which a wireless communication circuit is disposed. The second plate includes a slot filled with a non-conductive material. An area other than the slot is formed of a conductive material. The circuit board includes a conductive pattern formed on the circuit board along with the slot of the second plate, and the wireless communication circuit is configured to feed one point of the second plate adjacent to the slot to receive a signal of a first frequency band through an electrical path formed by the slot and to feed the conductive pattern to receive a signal of a second frequency band through the slot.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 27, 2020
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Han Bin Lee, Jae Hyung Kim, Hua Li, Je Sun Moon, Jin Kyu Bang, Chang Ha Yu, Sung Yeul Hong
  • Patent number: 10804550
    Abstract: A humidifier for a fuel cell includes: a bundle of hollow fiber membranes disposed therein, such that an intake gas flows inside the bundle of hollow fiber membranes; a housing configured to accommodate the bundle of hollow fiber membranes, such that an exhaust gas, which has a higher humidity than the intake gas, flows inside the housing; and a guide member disposed in the housing to restrict a movement of the bundle of hollow fiber membranes inside the housing. Coolant flows through the guide member to cool the exhaust gas to promote condensation of the exhaust gas.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 13, 2020
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Hyun Yoo Kim, Chang Ha Lee
  • Publication number: 20200321607
    Abstract: Disclosed is a method of manufacturing a composite anode material for a lithium secondary battery containing nano-sized silicon and a carbonaceous material through a single process, the method including mixing a carbonaceous material and solid silicon and performing carbothermal shock for rapidly heating the carbonaceous material so that the solid silicon is melted using the heated carbonaceous material and is dispersed and attached in the form of particles to the surface of the carbonaceous material, the size of the silicon particles, which grow on the surface of the carbonaceous material, being adjusted during the carbothermal shock. Accordingly, processing costs can be lower than conventional methods of manufacturing silicon nanoparticles, and manufacturing costs can be further reduced by simultaneously performing formation of the silicon nanoparticles and compounding with the carbonaceous material.
    Type: Application
    Filed: November 18, 2019
    Publication date: October 8, 2020
    Applicant: HPK INC.
    Inventors: Chang Hyun CHO, Chang Se WOO, Kap Seung YANG, Chang Ha LIM, Chung Hyung JOH
  • Publication number: 20200244075
    Abstract: Provided is a battery control apparatus, a battery control method and an energy storage system including the battery control apparatus. The battery control apparatus according to an embodiment of the present disclosure includes a first battery pack, a second battery pack, a first switch connected in series to the first battery pack between the first terminal and the second terminal, a second switch connected in series to the second battery pack between the first terminal and the second terminal, and a control unit. The control unit is configured to turn on both the first switch and the second switch when a voltage difference between the first battery pack and the second battery pack at a time point at which both the first switch and the second switch are turned off is less than a threshold voltage.
    Type: Application
    Filed: February 13, 2019
    Publication date: July 30, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Mi-So PARK, Chang Ha KIM