Patents by Inventor Ki Chang

Ki Chang 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).

  • BRASSIERE FOR RADIATION THERAPY
    Publication number: 20220087329
    Abstract: A brassiere for radiation therapy is disclosed. The brassiere for radiation therapy according to an embodiment of the present disclosure includes a pair of cups configured to cover breasts of a patient; a coupling member positioned between the pair of cups and configured to couple the pair of cups to each other; back bands configured to be in close contact with a back of the patient; and side compression bands, the side compression bands having one ends coupled to the pair of cups at the coupling member, respectively, and the other ends detachably coupled to the back bands, respectively, wherein positions of the breasts of the patient are changed by adjusting positions on the back bands to which the other ends of side compression bands are coupled.
    Type: Application
    Filed: August 19, 2020
    Publication date: March 24, 2022
    Inventors: Ki Chang Keum, Seung Kwon Ahn, Sam Ju Cho, Yong Bae Kim
  • STRUCTURE FOR MOUNTING ELECTRONIC SOUND GENERATOR IN VEHICLE
    Publication number: 20220032855
    Abstract: A structure for mounting an electronic sound generator (ESG) in a vehicle includes: an ESG located inside a cowl space of a vehicle body; and a mounting bracket formed to fix the ESG to members defining the cowl space. In particular, the mounting bracket includes a plurality of fixation parts fixed to the members defining the cowl space and a mounting part to which the ESG is fixed.
    Type: Application
    Filed: January 5, 2021
    Publication date: February 3, 2022
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Ki Chang KIM
  • METHOD FOR PREPARING GADOBUTROL
    Publication number: 20210317142
    Abstract: The present invention provides a novel method for preparing high-purity gadobutrol or hydrates thereof. The preparation method of the present invention can have an advantage of simplifying a process by forming a gadolinium complex in-situ without purification of a butrol intermediate and omitting a resin purification process unlike a conventional method for synthesizing gadobutrol. In addition, the preparation method of the present invention can be used to produce high-purity gadobutrol or hydrates thereof at a high yield only through the simple process as above, and thus can be useful in mass production.
    Type: Application
    Filed: August 23, 2019
    Publication date: October 14, 2021
    Inventors: Changho BYEON, Hoejin YOON, Moonsu KIM, Seongsu JEONG, Jongmoon PARK, Junwon LEE, Seokhun WOO, Sun Ki CHANG
  • Method and system for testing a system under development using real transaction data
    Patent number: 11093367
    Abstract: A method for testing an IT system automatically, when it comes to testing based on real transaction data including: (a) obtaining a transaction message by capturing a network packet transmitted and received between a user system and a transaction processing system; (b) transmitting a request data included in the transaction message to the system under test; (c) receiving a response data from the system under test; and (d) comparing the response data received from the system under test and a response data included in the transaction message and determining success or failure, is provided.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: August 17, 2021
    Assignee: LG CNS Co., Ltd.
    Inventors: Yong Sik Kim, Jung Hwan Kim, Jin Ho Kim, Min Sung Shin, Hoil Lee, Kwang Ok Jang, Ki Chang Jung, Kang Hee Han
  • Memory device including charge pump circuit
    Patent number: 11069415
    Abstract: The non-volatile memory device includes a memory cell array including a plurality of memory cells and a voltage generator configured to supply a voltage to the memory cell array. The voltage generator includes a charge pump circuit, a switching circuit, and a stage controller. The charge pump circuit includes a plurality of pump units and is configured to output a pump voltage and a pump current in accordance with a number of pump units that have received an input voltage among the plurality of pump units. The switching circuit is configured to output the pump voltage. The stage controller is configured to receive an input signal corresponding to the pump current and perform a stage control operation of generating a stage control signal for controlling the number of pump units to be driven.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: July 20, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-heon Baek, Dae-seok Byeon, Ki-chang Jang, Young-sun Min
  • Memory device and method of operating the same
    Patent number: 11061616
    Abstract: The present technology relates to a memory device and a method of operating the memory device. The memory device includes a target block manager configured to store a target block address on which a refresh operation is to be performed and output a refresh signal for the target block corresponding to the target block address when an auto refresh command is received, and a data transmission controller configured to output a transmission signal and a buffer control signal for transmitting data between the target block or the buffer block and the temporary buffer circuit in response to the refresh signal.
    Type: Grant
    Filed: December 27, 2019
    Date of Patent: July 13, 2021
    Assignee: SK hynix Inc.
    Inventors: Won Jae Choi, Ki Chang Gwon
  • VIEWING ANGLE COMPENSATION FILM, POLARIZING PLATE COMPRISING SAME, AND DISPLAY DEVICE COMPRISING SAME
    Publication number: 20210191186
    Abstract: The present specification relates to a viewing angle compensation film, a polarizing plate including the same, and a display device including the same, and the viewing angle compensation film includes: a pattern layer; and a low refractive layer, in which a difference in refractive index between the pattern layer and the low refractive layer is 0.02 to 0.
    Type: Application
    Filed: February 27, 2019
    Publication date: June 24, 2021
    Inventors: Byung Mook KIM, Sunghak BAE, Do Ki CHANG, Kyungki HONG, Dae Hee LEE, Sangcholl HAN, Youngjin KIM
  • METHOD OF IMPROVING FUEL EFFICIENCY OF FUEL CELL ELECTRIC VEHICLE BY USING NAVIGATION INFORMATION, AND APPARATUS AND SYSTEM THEREFOR
    Publication number: 20210179108
    Abstract: Disclosed are a method of improving fuel efficiency of a fuel cell electric vehicle, and an apparatus and a system therefor. The method includes collecting navigation information and vehicle speed information, calculating a coasting line when a specified event point is detected based on the navigation information, determining whether deceleration is necessary by comparing a current traveling speed with a coasting line speed corresponding to a current location, and changing a criterion for determining whether to enter a fuel cell stop (FC STOP) state when the deceleration is necessary as a determination result.
    Type: Application
    Filed: June 9, 2020
    Publication date: June 17, 2021
    Inventors: Ki Chang Kim, Soon Oh Kwon, Young Woo Jung, Yu Han Kim
  • DISPLAY DEVICE
    Publication number: 20210159302
    Abstract: A display device includes a display panel and a signal transmission film including a first extension portion, a second extension portion, and a first dummy pattern. The signal transmission film is connected to one side of the display panel. The first extension portion extends in a first direction, and a first contact hole is formed at a first side of the first extension portion. The second extension portion extends from the first side of the first extension portion in a second direction which is different from the first direction. The first dummy pattern is disposed adjacent to the first contact hole at the first side.
    Type: Application
    Filed: September 3, 2020
    Publication date: May 27, 2021
    Inventors: Sang Kyu CHOI, Su Jin JUNG, Yeong Bong KANG, Seong Sik AHN, Ki Chang LEE, Min Hyuk IM, Myoung-Ha JEON
  • DISPLAY DEVICE
    Publication number: 20210143346
    Abstract: A display device includes a substrate that includes a bending area, a display active layer disposed on the substrate and that displays an image, a polarization layer disposed on the display active layer, a protective layer that contacts an end of the polarization layer and covers the bending area of the substrate; and an adhesive layer disposed on a boundary between the polarization layer and the protective layer, the adhesive layer extends from the end of the polarization layer toward the bending area by an extension area to overlap a portion of the protective layer.
    Type: Application
    Filed: January 18, 2021
    Publication date: May 13, 2021
    Inventors: Myoung-Ha Jeon, Ki Chang Lee
  • LIGHTING APPARATUS AND VEHICULAR LAMP COMPRISING SAME
    Publication number: 20210123579
    Abstract: Embodiments of the present invention relate to a lighting apparatus capable of providing three-dimensional effects at the same time as the surface emission of light sources by using a half-mirror member for reflecting and transmitting parts of light. In particular, by adopting the half-mirror member for transmitting a part of and reflecting another part of light emitted from a surface-emitting light source module, the present invention allows the implementation of a mirror-like image when the light is off, and allows the implementation of a light image providing various three-dimensional effects when the light is on.
    Type: Application
    Filed: January 2, 2021
    Publication date: April 29, 2021
    Inventors: Moo Hyun Cho, Ki Beom Kim, Hyun Duck Yang, Ki Chang Lee, Byoung Eon Lee
  • Fuel cell system for modulating offset of hydrogen pressure sensor and method for modulating offset of hydrogen pressure sensor
    Patent number: 10971746
    Abstract: A fuel cell system for modulating an offset of a hydrogen pressure sensor is provided. The fuel cell system includes a stack with a plurality of cells and each cells includes a first electrode to which hydrogen is supplied, a second electrode to which oxygen is supplied, and a membrane electrode assembly arranged between the first and second electrodes to produce electricity by reaction between the hydrogen and the oxygen. The hydrogen pressure sensor is connected to each cell to sense a pressure of the hydrogen supplied to the first electrode. A controller that which of the cells is supplied with insufficient pressure of hydrogen and modulates the offset of the hydrogen pressure sensor connected to the cell to which the hydrogen is supplied with insufficient pressure, to then supply the hydrogen to the first electrode at an appropriate pressure.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: April 6, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Young Pin Jin, Sang Bok Won, Hyung Kook Kim, Ki Chang Kim
  • Method for diagnosing water-containing state of fuel cell stack
    Patent number: 10964962
    Abstract: A method for diagnosing a water-containing state of a fuel cell stack includes steps of: applying an alternating current (AC) signal having a predetermined frequency to the fuel cell stack to calculate each of an electrolyte membrane impedance, an anode impedance, and a cathode impedance from an output voltage and an output current of the fuel cell stack corresponding to the AC signal; and diagnosing the water-containing state of the fuel cell stack on the basis of the electrolyte membrane impedance, the anode impedance, and the cathode impedance.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: March 30, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Bok Won, Ki Chang Kim, Sung Ho Yang, Young Pin Jin
  • MEMORY DEVICE AND METHOD OF OPERATING THE SAME
    Publication number: 20210049067
    Abstract: The present technology relates to an electronic device. A memory device performing efficient soft decoding by reducing the number of data provided to a memory controller includes a memory cell array and a page buffer connected to the memory cell array through a bit line. The page buffer includes a plurality of latches and a read data operating component configured to generate a soft bit by logically operating soft data, which are data read from the memory cell array, and to provide the soft bit to a memory controller, in a second read operation performed when a first read operation has failed.
    Type: Application
    Filed: March 20, 2020
    Publication date: February 18, 2021
    Inventors: Won Jae CHOI, Ki Chang GWON
  • Voltage generator and method of operating the same
    Patent number: 10910071
    Abstract: There are provided a method of operating a voltage generator. The method includes providing a reference voltage, sensing a magnitude of a charge current for increasing voltages of a plurality of word lines based on the reference voltage, determining whether the sensed magnitude of the charge current is greater than a peak current value, increasing the reference voltage in accordance with a first slope when the sensed magnitude of the charge current is less than or equal to the peak current value, and increasing the reference voltage in accordance with a second slope less than the first slope when the detected magnitude of the charge current is greater than the peak current value.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: February 2, 2021
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-heon Baek, Ki-chang Jang, Dae-seok Byeon
  • Lighting apparatus having an optical module with a half-mirror member
    Patent number: 10907790
    Abstract: Embodiments of the present invention relate to a lighting apparatus capable of providing three-dimensional effects at the same time as the surface emission of light sources by using a half-mirror member for reflecting and transmitting parts of light. In particular, by adopting the half-mirror member for transmitting a part of and reflecting another part of light emitted from a surface-emitting light source module, the present invention allows the implementation of a mirror-like image when the light is off, and allows the implementation of a light image providing various three-dimensional effects when the light is on.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: February 2, 2021
    Assignee: LG Innotek Co., Ltd.
    Inventors: Moo Hyun Cho, Ki Beom Kim, Hyun Duck Yang, Ki Chang Lee, Byoung Eon Lee
  • DISPLAY DEVICE
    Publication number: 20210026482
    Abstract: A display device includes a display module, a touch member, and a first driving substrate. The display module includes a display panel. The touch member is disposed on the display module. The first driving substrate is attached on substrate attachment portions of the touch member, the substrate attachment portions being provided near a first edge of the touch member near a first side of the display device. the first driving substrate is bent in a downward direction with respect to the display module. The display module includes a bending support structure disposed on a first edge of the display module near the first side, the bending support structure protruding outwardly beyond the substrate attachment portions of the touch member.
    Type: Application
    Filed: October 12, 2020
    Publication date: January 28, 2021
    Inventors: Myoung Ha Jeon, Hyeon Jeong Oh, Ki Chang Lee
  • Display device
    Patent number: 10897018
    Abstract: A display device includes a substrate that includes a bending area, a display active layer disposed on the substrate and that displays an image, a polarization layer disposed on the display active layer, a protective layer that contacts an end of the polarization layer and covers the bending area of the substrate; and an adhesive layer disposed on a boundary between the polarization layer and the protective layer, the adhesive layer extends from the end of the polarization layer toward the bending area by an extension area to overlap a portion of the protective layer.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: January 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myoung-Ha Jeon, Ki Chang Lee
  • Memory device including charge pump circuit
    Patent number: 10867639
    Abstract: The memory device includes a memory cell array including a plurality of memory cells and a voltage generator configured to supply a voltage to the memory cell array. The voltage generator includes a charge pump circuit, a switching circuit, and a stage controller. The charge pump circuit includes a plurality of pump units and is configured to output a pump voltage and a pump current in accordance with a number of pump units that have received an input voltage among the plurality of pump units. The switching circuit is configured to output the pump voltage. The stage controller is configured to receive an input signal corresponding to the pump current and perform a stage control operation of generating a stage control signal for controlling the number of pump units to be driven.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: December 15, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-heon Baek, Dae-seok Byeon, Ki-chang Jang, Young-sun Min
  • MEMORY DEVICE AND METHOD OF OPERATING THE SAME
    Publication number: 20200363993
    Abstract: The present technology relates to a memory device and a method of operating the memory device. The memory device includes a target block manager configured to store a target block address on which a refresh operation is to be performed and output a refresh signal for the target block corresponding to the target block address when an auto refresh command is received, and a data transmission controller configured to output a transmission signal and a buffer control signal for transmitting data between the target block or the buffer block and the temporary buffer circuit in response to the refresh signal.
    Type: Application
    Filed: December 27, 2019
    Publication date: November 19, 2020
    Applicant: SK hynix Inc.
    Inventors: Won Jae CHOI, Ki Chang GWON