Patents by Inventor Chang Ho An

Chang Ho An 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: 20230010189
    Abstract: The present disclosure relates to an air supply valve having a backflow prevention function and a valve module, for preventing backflow of air or gas through an outlet. The air supply valve includes a housing that includes a motor mounted therein and in which a supply flow path and an outlet of air are formed, a driver including a gear part for transmitting driving force of the motor and a converter for converting rotation of the gear part to linear motion, and a valve module that is coupled to an end of the converter and is opened while being spaced apart from the outlet of the housing to be connected to the supply flow path or is closed while being in contact with the outlet.
    Type: Application
    Filed: July 1, 2022
    Publication date: January 12, 2023
    Applicant: KAMTEC INC.
    Inventors: Chang Ho SEO, Seung Yong KIM, Jung Suek KOO
  • Patent number: 11552433
    Abstract: An electrical connector is disclosed. The electrical connector has a casing, a terminal seat and a conductive plastic element. The terminal seat is mounted in the casing and has an insulator board and a terminal set. The terminal set has a ground terminal and a high-speed signal terminal set. One side of the conductive plastic element is mounted on an inner wall of the casing and another side thereof passes through the insulator board to be close to the high-speed signal terminal set. When the casing is electrically connected to a ground, the conductive plastic element is electrically connected to the ground through the casing. Therefore, the conductive plastic element may eliminate a noise interference caused by the high-speed signal terminal set during high-speed transmission. A crosstalk and a common-mode interference are also reduced to keep the stability of signal transmission of the electrical connector.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: January 10, 2023
    Assignee: ACES ELECTRONICS CO., LTD.
    Inventors: Rong-Hsun Kuo, Chang-Ho Teng, Chia-Sheng Liang
  • Patent number: 11552313
    Abstract: a fuel cell system without a high pressure line of a hydrogen supplying system, including a gas charging line formed between a gas charging station and a high pressure vessel charged with gas by the gas charging station, and a gas supplying line formed between the high pressure vessel and a stack, includes: a regulator provided in the gas supplying line; a solenoid valve provided in the gas supplying line between the regulator and the high pressure vessel; and a check valve provided in a bypass line connecting one point of the gas supplying line between the regulator and the solenoid valve and one point of the gas charging line.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: January 10, 2023
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chang Ho Kim, Ji Hyun Shim
  • Publication number: 20230005962
    Abstract: A display device invention includes a substrate on which a plurality of light emitting elements are disposed. A plurality of lines are disposed on an upper surface of the substrate. A plurality of upper pads are disposed on the upper surface of the substrate and electrically connected to the plurality of lines. A plurality of link lines are disposed on a lower surface of the substrate. A plurality of lower pads are disposed on the lower surface of the substrate and electrically connected to the plurality of link lines. A plurality of side lines electrically connect the plurality of upper pads and the plurality of lower pads. The plurality of side lines include a plurality of first side lines and a plurality of second side lines, and the plurality of first side lines and the plurality of second side lines are disposed on different layers.
    Type: Application
    Filed: March 30, 2020
    Publication date: January 5, 2023
    Inventors: Chang Ho LEE, Hye Ran JEONG, Sun Geun BAE, Hyo Seob LEE
  • Publication number: 20220415507
    Abstract: A method of training an artificial intelligence model for estimating a hemoglobin A1c (HbA1c) level includes collecting patient information including exercise information and bioinformation of a patient, collecting an actual HbA1c level of the patient, converting the collected patient information and actual HbA1c level into a single standardized data structure format, and training an artificial intelligence model using the converted patient information and actual HbA1c level to generate an artificial intelligence model for estimating an HbA1c level. The bioinformation includes at least one of a blood sugar level, a blood pressure, a heart rate, and a menstrual cycle, and the exercise information is generated on the basis of patient life log data acquired by a patient terminal.
    Type: Application
    Filed: August 9, 2021
    Publication date: December 29, 2022
    Inventor: Chang Ho KIM
  • Publication number: 20220397946
    Abstract: An example ventilation system for a computing device includes: a cover slidably engageable with a housing of the computing device to a closed position defining an internal space of the computing device, the cover having first ventilation holes; a system mesh slidably engaged with the cover, the system mesh having second ventilation holes; and a stopper disposed in the internal space of the computing device, the stopper to stop the system mesh at a predefined position when the cover is engaged with the housing in the closed position, wherein the first ventilation holes and the second ventilation holes overlap to define system ventilation holes for the computing device.
    Type: Application
    Filed: October 31, 2019
    Publication date: December 15, 2022
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Chin-Chang Ho, Hung-Ming Lin, Lan-Chin Chiou, Wei-Chih Tsao, Che-An Yao
  • Publication number: 20220399684
    Abstract: Introduced is a connector assembly in which a CPA member, which assists in fastening a first connector and a second connector, securely connects the first connector and the second connector, and prevents a short circuit of an electrical signal, may be automatically inserted.
    Type: Application
    Filed: May 4, 2022
    Publication date: December 15, 2022
    Applicants: Hyundai Motor Company, Kia Corporation, Tyco Electronics AMP Korea Co., Ltd.
    Inventors: Bum Woo NAM, Kun Teak LIM, Chang Ho LEE, Ki Ho CHOI
  • Publication number: 20220399891
    Abstract: A contactless button structure includes a frame body with indicating key surfaces on one side thereof and an isolation space on an opposite side thereof, and a driving unit installed in the isolation space. The driving unit includes a plurality of sensing devices respectively installed on the back side of each indicating key surface and a control unit that receives the electronic signal of each sensing device. The control unit includes a plurality of trigger devices corresponding to the sensing devices respectively. Each trigger device has a retractable trigger rod. The contactless button structure can be installed outside the control key surface of the equipment (such as elevators, etc.) in the building, and the user's finger can approach any indicating key surface of the frame body of the button structure to achieve the purpose of non-contact touch control buttons.
    Type: Application
    Filed: June 1, 2022
    Publication date: December 15, 2022
    Inventor: Meng-Chang HO
  • Patent number: 11527187
    Abstract: Provided is a display device for providing a constant brightness for each area by including an area sensing part configured to determine a position value of an input image in the display device, and determine an area range according to the position value to output an area value, a gradation value determining part configured to output a first gradation value corresponding to a brightness of the input image according to the area value, a control part configured to output a corrected gradation value corresponding to the first gradation value, and a display part configured to display a corrected image having the corrected brightness corresponding to the corrected gradation value.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: December 13, 2022
    Inventors: Chang Ho Hyun, Kyemoon Lee, Jachul Hwangse
  • Patent number: 11519953
    Abstract: An apparatus for testing a semiconductor device is described. The apparatus includes a test chamber in which a test process for a plurality of semiconductor devices is performed, a first storage disposed in the test chamber with a first semiconductor device located therein, a second storage spaced apart in a first direction from the first storage with a second semiconductor device located therein, a first nozzle extending in the first direction on a first sides of the first and second storages and including a plurality of first air outlets configured to discharge air, a second nozzle extending in the first direction on and including a plurality of second air outlets configured to discharge air, and a controller controlling temperatures of the first and second semiconductor devices within a predefined temperature range by controlling the air discharged by the first and second nozzles.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: December 6, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min Woo Kim, Seung Bin Ko, Dong Joo Roh, Chang Ho Lee, Jin-Ho Choi
  • Publication number: 20220376424
    Abstract: A connector body has a body terminal passageway configured to accommodate a terminal and a block accommodating part configured to communicate with the body terminal passageway. An assembly block is detachably connected to the connector body, rotatable about the connector body while maintaining a state in which the assembly block is connected to the connector body while an external force is applied, and configured to rotate at a predetermined angle or more to be separated from the connector body and be insertable into the block accommodating part.
    Type: Application
    Filed: May 18, 2022
    Publication date: November 24, 2022
    Applicant: Tyco Electronics AMP Korea Co., Ltd.
    Inventors: Chang-Ho Lee, Keun Taek Lim
  • Publication number: 20220367117
    Abstract: A method for manufacturing a multilayer electronic component includes: preparing first ceramic green sheets on which first internal electrode patterns are formed spaced apart from each other and second ceramic green sheets on which second internal electrode patterns are formed spaced apart from each other; forming a ceramic green sheet stack by stacking the first ceramic green sheets and the second ceramic green sheets for the first internal electrode patterns and the second internal electrode patterns to be cross-stacked on each other; obtaining a multilayer body by cutting the ceramic green sheet stack to have a side surface to which distal edges of the first and second internal electrode patterns are exposed; adhering an adhesive layer to the side surface to which the distal edges of the first and second internal electrode patterns of the multilayer body are exposed; and peeling the adhesive layer from the side surface.
    Type: Application
    Filed: January 14, 2022
    Publication date: November 17, 2022
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Ho Lee, Myung Chan Son, Eun Jung Lee, Jung Tae Park, Min Woo Kim, Chang Ho Seo, Sung Soo Choi, Sun Mi Kim
  • Patent number: 11484557
    Abstract: The present invention relates to: human-derived Lactobacillus fermentum MG4231 or Lactobacillus fermentum MG4244; and a pharmaceutical composition, a food composition, a quasi-drug composition and a health functional food for preventing or treating obesity-related diseases, all of which include the same as an active ingredient. A Lactobacillus fermentum MG4231 strain or MG4244 strain of the present invention exhibits an anti-obesity activity for inhibiting a lipase enzyme activity, inhibiting preadipocyte differentiation and inhibiting triglyceride accumulation, has an excellent ability to form colonies on the epithelial cells of a digestive tract by means of an excellent auto-aggregation ability, and has resistance to acid and bile, thereby being variously usable as a pharmaceutical composition, a food composition, a quasi-drug composition and a health functional food for the purpose of treating and preventing obesity-related diseases.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: November 1, 2022
    Assignee: Mediogen Co., Ltd.
    Inventors: Nam Soo Paek, Chang Ho Kang
  • Patent number: 11478882
    Abstract: A vehicle body assembly system defines a preset pre-buck section and a preset main-buck section along a conveying route of a floor assembly, and may include: i) pre-buck units which are installed at both sides of the conveying route in the pre-buck section, respectively, restrict lower portions of side assemblies, which vary in accordance with a type of vehicle, with respect to both sides of the floor assembly, and preassemble the lower portions of the side assemblies to the floor assembly by a first welding robot; and ii) main-buck units which are installed at both sides of the conveying route in the main-buck section, respectively, restrict upper portions of the side assemblies preassembled by the pre-buck unit, and post-assemble vehicle body components to the upper portions of the side assemblies by a second welding robot.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: October 25, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Hyun Gu Lee, Yoon Jang, Chang Ho Jung, Ki Haing Lee, Chi Hong Hwang, Deug Young So, Young Do Kim
  • Publication number: 20220330924
    Abstract: A biosignal measuring apparatus for converting and transmitting biosignals, includes a sensing unit configured to sense a user's electrocardiogram data, a communication unit configured to establish a wireless channel with a data receiving device, and a processing unit configured to determine real-time transmission characteristics based on communication quality information regarding the wireless channel, to determine a data resolution corresponding to the real-time transmission characteristics, to convert the electrocardiogram data according to the data resolution, and to transmit the electrocardiogram data to the data receiving device.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 20, 2022
    Applicant: ATSENS CO., LTD.
    Inventors: Jong Ook JEONG, Chang Ho LEE, Soo A LIM
  • Publication number: 20220330872
    Abstract: A bio-signal measuring apparatus includes a sensing apparatus configured to sense electrocardiogram data representing an electrical change according to a pulse of an object and sense heart sound data according to the pulse and a processing apparatus configured to store the electrocardiogram data in a memory. The processing apparatus is further configured to analyze the electrocardiogram data to determine whether or not an abnormal signal is generated in the electrocardiogram data, when the abnormal signal is detected to be generated in the electrocardiogram data, generate a storage control signal for heart sound data associated with the abnormal signal in an abnormal signal section including the abnormal signal, and store the associated heart sound data in the abnormal signal section of the memory in response to the storage control signal.
    Type: Application
    Filed: April 16, 2021
    Publication date: October 20, 2022
    Applicant: ATSENS CO., LTD.
    Inventors: Jong Ook JEONG, Chang Ho LEE
  • Patent number: 11473129
    Abstract: The present invention, among other things, provides technologies for detecting and/or quantifying nucleic acids in cells, tissues, organs or organisms. In some embodiments, through sequential barcoding, the present invention provides methods for high-throughput profiling of a large number of targets, such as transcripts and/or DNA loci.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: October 18, 2022
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Long Cai, Eric Lubeck, Timur Zhiyentayev, Ahmet Coskun, Ting-Fang He, Chang Ho Sohn, Sheel Shah
  • Publication number: 20220322827
    Abstract: A slip-resistant seat includes a seat and anti-slip units. The seat includes a rest portion, legs and butting portions. The legs are disposed below the rest portion. The butting portions are disposed beside the legs, respectively. The anti-slip units are disposed at the legs, respectively. The anti-slip units each include a fitting element, anti-slip portion, adsorption element and force-bearing portion. The adsorption elements are disposed beside the fitting elements, respectively. The fitting elements are higher than the adsorption elements. The anti-slip portions are disposed at the bottoms of the fitting elements. The force-bearing portions are disposed on the top surfaces of the adsorption elements. The fitting elements are fitted to the bottoms of the legs. The butting portions are separated from the force-bearing portions, respectively, by a prepressing distance. When the seat carries a load, the fitting elements are pressed downward, and the prepressing distance shortens.
    Type: Application
    Filed: April 12, 2021
    Publication date: October 13, 2022
    Inventors: LI-SHENG CHIEN, CHIEN-CHANG HO
  • Publication number: 20220322991
    Abstract: A bio-signal data processing apparatus includes a communicator configured to receive electrocardiogram data from a bio-signal measuring apparatus, a recording unit configured to record the electrocardiogram data, a transmission delay determiner, and an output information generator. The transmission delay determiner is configured to generate transmission delay information by comparing a recording time of the electrocardiogram data with a reception time of the electrocardiogram data, detect whether or not a delay according to data transmission occurs, by considering the transmission delay information, and, when the delay is detected to occur, calculating delay time information that is calculated on the basis of the transmission delay information. The output information generator is configured to correct the electrocardiogram data by using the delay time information and generate output data of the electrocardiogram data corresponding to a user input.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 13, 2022
    Applicant: ATSENS CO., LTD.
    Inventors: Jong Ook JEONG, Chang Ho LEE, Soo A. LIM
  • Publication number: 20220303083
    Abstract: When a transmitting apparatus wants to transmit a preemptable frame, the transmitting apparatus transmits a preemptable packet by a custom preamble including frame length information on a payload of the preemptable frame to the payload of the preemptable frame. A receiving apparatus determines whether a received preemptable frame is fragmented using frame length information set in the custom preamble of the received preemptable frame. As described above, since it is possible to check whether the received frame is fragmented using the frame length information set in the custom preamble, there is no need to perform CRC calculation to determine whether the received frame is fragmented as in the prior art.
    Type: Application
    Filed: November 17, 2021
    Publication date: September 22, 2022
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Chang-Ho CHOI, Taesik CHEUNG, Tae Kyu KANG, Jeong-Dong RYOO, Woo Young CHOI