Patents by Inventor Chan Choi

Chan 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).

  • Publication number: 20210179186
    Abstract: A vehicle rear structure includes: a back frame having a top portion, a bottom portion, a pair of side portions, and a pair of upper corners located on both ends of the top portion, respectively, to define a back opening; and a first reinforcing member extending from each upper corner along a corresponding side portion, wherein the first reinforcing member includes a reinforcing bead and a peripheral flange extending along an edge of the reinforcing bead, and the peripheral flange is configured to be connected to the corresponding side portion of the back frame.
    Type: Application
    Filed: September 14, 2020
    Publication date: June 17, 2021
    Inventors: Seung Chan CHOI, Da Mi BOK, Seung Hyun KANG
  • Publication number: 20210142848
    Abstract: A semiconductor device includes an error check and scrub (ECS) command generation circuit and an ECS control circuit. The ECS command generation circuit is configured to generate an ECS command by controlling a speed of a first counting operation that is performed based on a refresh command or a bank refresh command, according to a temperature and a refresh mode of the semiconductor device, or is configured to generate the ECS command by performing a second counting operation based on a periodic signal. The ECS control circuit is configured to sequentially generate an ECS active command, an ECS read command, an ECS write command, an ECS pre-charge command, and an end signal based on the ECS command. The refresh mode includes a fine granularity refresh (FGR) mode, and the temperature includes a high temperature that is a temperature above a certain temperature.
    Type: Application
    Filed: August 3, 2020
    Publication date: May 13, 2021
    Applicant: SK hynix Inc.
    Inventors: Jung Ho LIM, Byeong Chan CHOI
  • Patent number: 11004499
    Abstract: A latency control circuit and method are provided. The latency control circuit includes a DLL circuit, a latency counter circuit, a synchronization circuit, and a delay line circuit. The DLL circuit enters an inactive state after locking the delay time and provides an active signal at a disable state, delay locking information and loop delay information during the inactive state. The synchronization circuit stops providing a first clock signal according to the active signal at the disable state and then synchronously outputs an operation enabling signal and a second clock signal in response to an enablement of the operation signal. The delay line circuit receives the delay locking information, the operation enabling signal, and the second clock signal and outputs an operation delay signal and an output clock signal after the delay time.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: May 11, 2021
    Assignee: Winbond Electronics Corp.
    Inventors: Young-Tae Kim, Chan-Seok Park, Youngjoo Choi, Myung-Chan Choi
  • Publication number: 20210078000
    Abstract: An analysis chip for determining an efficient anticancer drug or anticancer drug combination for cancer cells, according to an embodiment of the present disclosure, includes a chamber which is a unit for analyzing single cancer cells, and a plurality of valves configured to regulate a fluid to be injected into the chamber, wherein the chamber includes a channel through which a fluid including an anticancer drug and a cell lysis buffer flows, a cell sorting part configured to focus cancer cells flowing along the channel, a cell capturing part configured to focus the cancer cells focused by the cell storing part, and an antibody array configured to capture proteins secreted from the captured cancer cells and intracellular protein through cell lysis.
    Type: Application
    Filed: July 10, 2018
    Publication date: March 18, 2021
    Inventors: Sung YANG, Jong Chan CHOI
  • Patent number: 10890994
    Abstract: The present invention relates to a touch sensor integrated color filter and a manufacturing method for the same in which a touch sensor layer including a metal layer and a transparent conductive layer is formed on a black matrix of a flexible color filter.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: January 12, 2021
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Seong Ho Park, Ju In Yoon, Kyoung Mo Lee, Young Chan Choi
  • Publication number: 20200413548
    Abstract: A method for plating a printed circuit board, includes placing a substrate, including a through hole, in contact with a plating solution and disposing the substrate to face an electrode; and applying a pulsed current to each surface of the substrate, including applying pulsed currents of opposite polarity to both surfaces of the substrate at least once and applying pulsed forward currents to both surfaces of the substrate at least once, to plate from a middle to an end of the through hole.
    Type: Application
    Filed: December 11, 2019
    Publication date: December 31, 2020
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Chan CHOI, Young Kwon JEONG, Min Soo KIM, Seong Jae MUN
  • Publication number: 20200393130
    Abstract: A swirler with a fuel manifold, and a combustor and gas turbine including the same are provided. The swirler may include a swirler body disposed between an inner surface of a fuel nozzle and an outer surface of a center body, a fuel injection hole disposed on the swirler body, a fuel manifold formed in the swirler body, the fuel manifold being connected to a fuel channel disposed in the center body while communicating with the fuel injection hole, and a turbulence alleviator formed at a fuel inlet of the fuel manifold to alleviate creation of turbulence of fuel flowing from the fuel channel to the fuel manifold.
    Type: Application
    Filed: May 21, 2020
    Publication date: December 17, 2020
    Inventor: In Chan CHOI
  • Publication number: 20200379596
    Abstract: A touch sensor integrated color filter and a manufacturing method for the touch sensor integrated filter are disclosed. In the touch sensor integrated color filter, a touch sensor layer including a metal layer and a transparent conductive layer is formed on a black matrix of a flexible color filter.
    Type: Application
    Filed: August 18, 2020
    Publication date: December 3, 2020
    Applicant: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Seong Ho PARK, Ju In YOON, Kyoung Mo LEE, Young Chan CHOI
  • Publication number: 20200375842
    Abstract: Provided is a massage module and a massage device including same. The massage module may include: a procedure member including an upper finger member and a lower finger member cooperating with the upper finger member; and a cam driving part connected to the upper finger member so as to move the upper finger member in the vertical direction, so that the upper finger member and the lower finger member are away from or close to each other.
    Type: Application
    Filed: August 10, 2018
    Publication date: December 3, 2020
    Inventors: Sung Chan CHOI, Cheul Kyu JIN, Myeong Jin YOU, Gi Won UM, Jong Sick PARK
  • Patent number: 10830143
    Abstract: A cooling path structure for concentrated cooling of a seal area in a duct assembly and a gas turbine combustor having the same are provided. The cooling path structure includes a concentrated cooling guide plate facing the seal area to introduce compressed cooling air into the seal area through a plurality of first cooling holes and a plurality of second cooling holes respectively formed in the guide plate. The first cooling holes are formed along a first inlet axis such that the introduced cooling air approaches a central axis of the seal area in a forward direction, and the second cooling holes are formed along a second inlet axis such that the introduced cooling air approaches the central axis of the seal area in a backward direction. The first and second inlet axes each are inclined at an acute angle relative to the central axis of the seal area.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: November 10, 2020
    Assignee: Doosan Heavy Industries Construction Co., Ltd
    Inventor: In Chan Choi
  • Patent number: 10827615
    Abstract: A printed circuit board includes a substrate having a first surface and a second surface, opposite to the first surface, and having a through-portion penetrating between the first surface and the second surface; and a through-via disposed in at least a portion of the through-portion, wherein the through-via includes a first metal layer having a first groove portion facing an interior of the through-portion from the first surface of the substrate and a second groove portion facing the interior of the through-portion from the second surface of the substrate, and the first metal layer has a first region, and a second region, having different average grain sizes.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: November 3, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Chan Choi, Young Kwon Jeong, Min Soo Kim, Seong Jae Mun
  • Publication number: 20200130103
    Abstract: A laser patterning apparatus of a three-dimensional object to be processed, which includes a laser generation unit, a first beam adjustment unit for adjusting the magnitude of a laser beam generated in the laser generation unit, a second beam adjustment unit for adjusting the focal location of z-axis, x-axis, and y-axis of the laser beam via the first beam adjustment unit, and a control unit for controlling the second beam adjustment unit so that laser patterning is performed on a three-dimensional object to be processed.
    Type: Application
    Filed: December 20, 2019
    Publication date: April 30, 2020
    Applicant: Advanced Technology Inc.
    Inventors: Byoung-Chan CHOI, Yong Cheol CHOI, Ho Kyeng CHOI, Young Hun SONG, Ki Won JUNG, Doo Baeck AN
  • Patent number: 10564692
    Abstract: The disclosure is directed to a memory device and a power reduction method of the same memory device. In an aspect, the disclosure is directed to a memory device which includes not limited to a plurality of memory banks, each having a power switch, a plurality of functional blocks for reading and writing to the plurality of memory banks and include a plurality of power switches as each functional block of the plurality of function blocks has a different power switch which turns on or turns off the functional block, a mode register circuit having a plurality of mode registers which determines whether one or more of the plurality of memory banks would maintain data storage or not, and a control logic circuit for either powering on or powering off each of the plurality of memory banks and each of the plurality of the functional blocks.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: February 18, 2020
    Assignee: Windbond Electronics Corp.
    Inventor: Myung-Chan Choi
  • Publication number: 20200015961
    Abstract: There is provided an intraocular lens including an optic portion having a circular shape from one side thereof and including a first pattern which includes a ridge and a groove, and a plurality of haptic portions extending from an outer circumferential edge of the optic portion and each including a second pattern which includes a ridge and a groove, in which at least one of the ridges included in the first pattern and the second pattern and at least one of the grooves included in the first pattern and the second pattern includes a section in which a width is formed differently.
    Type: Application
    Filed: July 16, 2019
    Publication date: January 16, 2020
    Inventors: Ho Jeong JEON, Myoung Ryul OK, Yu Chan KIM, Hyun Kwang SEOK, Choun Ki JOO, Byoung Chan CHOI
  • Publication number: 20200001397
    Abstract: Disclosed herein is a laser processing apparatus that includes a laser generation unit configured to generate a laser beam to process a workpiece, a first fluid jet generation unit configured to generate and inject a first fluid jet to deliver the laser beam to the workpiece, and a second fluid jet generation unit configured to inject a second fluid jet around the laser beam, wherein the first and second fluid jets are simultaneously or selectively injected.
    Type: Application
    Filed: September 11, 2019
    Publication date: January 2, 2020
    Applicant: Advanced Technology Inc.
    Inventors: Byoung Chan CHOI, Doo Baeck AN
  • Patent number: 10497487
    Abstract: In a transparent electrode based on a metal material having reduced light reflectance, a light absorbing layer having black characteristic is formed on a lower surface, a partition wall, and/or an upper surface of a metal wire, and thus, light reflectance of transparent electrode is minimized. In a method of manufacturing a transparent electrode, the light absorbing layer can be selectively formed on the upper and lower surfaces and the partition wall of the metal wire having a fine line width by using self-aligning and a spontaneous pattern effect. A conductive wire is implemented by using an imprinting process using an elastic body-based stamp, and thus, conductive wires having a fine line width and an excellent aspect ratio can be formed, so that it is possible to improve electric conductivity and transmittance.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: December 3, 2019
    Assignee: KYUNGPOOK NATIONAL UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Hak-Rin Kim, Ji-Sub Park, Jun-Chan Choi
  • Publication number: 20190343486
    Abstract: Provided are an ultrasound imaging apparatus and a method of processing an ultrasound image. The ultrasound imaging apparatus includes a display configured to display a moving image consisting of a plurality of ultrasound images that are played back according to a time order together with at least one icon, corresponding to at least one piece of change information for changing a display of at least one of the plurality of ultrasound images, in association with the time order.
    Type: Application
    Filed: July 10, 2019
    Publication date: November 14, 2019
    Applicant: Samsung Medison Co., Ltd.
    Inventors: Tae-jin PARK, Dae-woong Kang, Yea-chan Choi
  • Patent number: 10475381
    Abstract: According to an aspect of the present disclosure, an organic light emitting display device includes a plurality of pixels each including a pixel driving circuit. The plurality of pixels includes an organic light emitting diode and a driving TFT configured to control driving of the organic light emitting diode and including a gate node as a first node, a source node as a second node, and a drain node. Also, the plurality of pixels includes first to third switching TFTs electrically connected to the driving TFT and first and second storage capacitors configured to store a voltage to be applied to the driving TFT DT. Further, the plurality of pixels includes a coupling capacitor connected to a gate node of the third switching TFT so as to increase a voltage to be applied to the gate node of the driving TFT.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: November 12, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: Siu Yoon, Seung Chan Choi, Jun Ho Lee, Sung Bin Ryu, Ki Tae Kim
  • Publication number: 20190304530
    Abstract: The disclosure is directed to a memory device and a power reduction method of the same memory device. In an aspect, the disclosure is directed to a memory device which includes not limited to a plurality of memory banks, each having a power switch, a plurality of functional blocks for reading and writing to the plurality of memory banks and include a plurality of power switches as each functional block of the plurality of function blocks has a different power switch which turns on or turns off the functional block, a mode register circuit having a plurality of mode registers which determines whether one or more of the plurality of memory banks would maintain data storage or not, and a control logic circuit for either powering on or powering off each of the plurality of memory banks and each of the plurality of the functional blocks.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 3, 2019
    Applicant: Winbond Electronics Corp.
    Inventor: Myung-Chan Choi
  • Publication number: 20190294478
    Abstract: A method for validating the validity of a group member of a virtual resource is provided. A method for validating the validity of a group according to an embodiment of the present invention obtains parent resource type information of a resource designated by a group member ID included in a group generation request and validates the validity of the group by using the obtained parent resource information. Accordingly, the validity of a virtual resource as a group member can be validated.
    Type: Application
    Filed: March 23, 2017
    Publication date: September 26, 2019
    Inventors: Seung Myeong JEONG, Il Yeup AHN, Jae Ho KIM, Sung Chan CHOI, Nak Myoung SUNG, Jae Seok YUN