Patents by Inventor Jae-Cheol Lee

Jae-Cheol Lee 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: 10436844
    Abstract: A synthetic test circuit for testing a submodule performance in a power compensator includes a submodule test unit which is an object of testing the submodule performance, a current source and a controller. The current source is connected to the submodule test unit to supply a voltage to the submodule test unit such that a charging voltage having a capacity set in the submodule test unit is stored in order to operate the submodule test unit. The controller is configured to perform control to perform a submodule performance test of the submodule test unit using the stored charging voltage.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: October 8, 2019
    Assignee: LSIS CO., LTD.
    Inventors: Yong Ho Chung, Seung Taek Baek, Young Woo Kim, Jin Hee Lee, Eui Cheol Nho, Jae Hun Jung
  • Patent number: 10436268
    Abstract: A method of manufacturing a brake disk made of gray cast iron is disclosed. The method includes casting a disk body using gray cast iron containing 3.1 wt % to 3.7 wt % of C; machining a surface of the cast disk body; nitriding the disk body by exposing the machined surface to a temperature in the range of 540° C. to 580° C. for 50 min to 70 min, and coating the nitrided disk body.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: October 8, 2019
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Min Gyun Chung, Yoon Cheol Kim, Yoon Joo Rhee, Byung Chan Lee, Jae Young Lee
  • Patent number: 10419759
    Abstract: Disclosed is an adaptive transform method based on an in-screen prediction, and an apparatus using the method. A method for encoding an image can comprise a step of determining in-screen prediction mode groups, and a step of transforming by using a different transform method according to the in-screen prediction mode group. As a result, transforming can be performed by applying the different transform method according to the in-screen prediction mode group.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 17, 2019
    Assignee: KT CORPORATION
    Inventors: Bae Keun Lee, Jae Cheol Kwon, Joo Young Kim
  • Patent number: 10415822
    Abstract: Disclosed are an apparatus and a method for measuring the height of a solid bed in a high-temperature and high-pressure fluidized bed system, and a fluidized bed system having the solid bed height measuring apparatus. The solid bed height measuring apparatus includes a lower pressure probe mounted at an upper side as high as a first height from a gas distributor of a fluidized bed reactor to measure pressure of the mounted location, and a middle pressure probe mounted at an upper side as high as a second height from the lower probe to measure pressure of the mounted location. An upper pressure probe is mounted at the top of the fluidized bed reactor to measure the inside pressure of the fluidized bed reactor. First and second differential pressure gauges are used for measuring differential pressures.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: September 17, 2019
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Ho-jung Ryu, Dong-ho Lee, Gyoung-tae Jin, Do-won Shun, Chang-keun Yi, Jae-hyeon Park, Dal-hee Bae, Sung-ho Jo, Seung-yong Lee, Young Cheol Park, Jong-ho Moon
  • Patent number: 10413869
    Abstract: A composite hollow fiber membrane having improved water permeability and peel strength and a manufacturing method thereof are disclosed. The composite hollow fiber membrane includes a tubular polymer membrane having an outer surface and an inner surface, and a tubular braid disposed between the outer surface and the inner surface of the tubular polymer membrane, the tubular braid comprises a plurality of yarns, each of the yarns includes first multifilaments and second multifilaments, each of the first multifilaments includes a plurality of first monofilaments having fineness of 3 to 50 denier, and each of the second multifilaments includes a plurality of second monofilaments having fineness of 0.4 to 3 denier.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: September 17, 2019
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Ah Reum Lee, Jae Hun Lee, Yong-Cheol Shin, Heewan Moon
  • Publication number: 20190265575
    Abstract: An apparatus for auto focus having an improved stopper structure includes a base frame configured to give an inner space, a carrier accommodated in the base frame to move in an optical axis direction, a plurality of balls located between the base frame and the carrier, and a stopper provided at an upper portion of the carrier and having a protrusive shape to prevent the plurality of balls from deviating, the stopper allowing an uppermost ball among the plurality of balls to be partially exposed.
    Type: Application
    Filed: February 4, 2019
    Publication date: August 29, 2019
    Inventors: Jae Yong GO, Byung Cheol LEE, Hwan Hwi LEE
  • Publication number: 20190251364
    Abstract: To summarize an input image, an image summarization system extracts a background frame and object information of each of objects from an image stream, and selects objects which match a selection condition among extracted objects as a queue object. The image summarization system generates a summarized video based on the queue object and a background frame.
    Type: Application
    Filed: June 30, 2017
    Publication date: August 15, 2019
    Applicant: KT Corporation
    Inventors: Tae Heon PARK, Kwang Jung KIM, Jae Cheol KWON, Bong-Ki KIM, Mi-Sook LEE
  • Publication number: 20190253221
    Abstract: A method and apparatus for requesting uplink resources in a wireless communication system is provided. A user equipment determines whether a scheduling request for requesting uplink resources is triggered. If the scheduling request is triggered, the user equipment transmits a first set of frequency domain sequences and a second set of frequency domain sequences in a subframe.
    Type: Application
    Filed: April 23, 2019
    Publication date: August 15, 2019
    Inventors: Yeong Hyeon KWON, Seung Hee HAN, Hyun Woo LEE, Jae Hoon CHUNG, Jin Sam KWAK, Dong Cheol KIM, Min Seok NOH
  • Publication number: 20190252401
    Abstract: A semiconductor device includes a peripheral circuit region on a substrate, a polysilicon layer on the peripheral circuit region, a memory cell array region on the polysilicon layer and overlapping the peripheral circuit region, the peripheral circuit region being under the memory cell array region, an upper interconnection layer on the memory cell array region, and a vertical contact through the memory cell array region and the polysilicon layer, the vertical contact connecting the upper interconnection layer to the peripheral circuit region.
    Type: Application
    Filed: April 26, 2019
    Publication date: August 15, 2019
    Inventors: Yoo-cheol Shin, Young-woo Park, Jae-duk Lee
  • Patent number: 10379399
    Abstract: A display device including a backlight unit; and an image forming unit configured to transmit or block light emitted from the backlight unit to create an image, wherein the backlight unit includes a light source, a reflector sheet configured to absorb light having a predetermined wavelength range among light emitted from the light source, and to reflect non-absorbed light, and an optical sheet configured to absorb light having the predetermined wavelength range among the light emitted from the light source, and to transmit non-absorbed light.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: August 13, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Ho Choi, Yong-Hun Kwon, Tae-Hyeong Kim, Chun Soon Park, Young Chol Lee, Jong Cheol Lee, Jae Hak Cho, Seung Hun Chae, Hyung Jin Ha
  • Patent number: 10381370
    Abstract: A semiconductor device includes a peripheral circuit region on a substrate, a polysilicon layer on the peripheral circuit region, a memory cell array region on the polysilicon layer and overlapping the peripheral circuit region, the peripheral circuit region being under the memory cell array region, an upper interconnection layer on the memory cell array region, and a vertical contact through the memory cell array region and the polysilicon layer, the vertical contact connecting the upper interconnection layer to the peripheral circuit region.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: August 13, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yoo-cheol Shin, Young-woo Park, Jae-duk Lee
  • Publication number: 20190242003
    Abstract: A thin film deposition apparatus includes a mask in contact with a first surface of a substrate, a magnet plate above a second surface of the substrate and configured to pull the mask toward the first surface of the substrate, the second surface being an opposite surface to the first surface, and an insulating member between the magnet plate and the second surface of the substrate.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 8, 2019
    Inventor: Jae-Cheol Lee
  • Publication number: 20190237861
    Abstract: A chip antenna includes a radiation portion having a block shape and a first surface and a second surface opposing each other, and configured to receive and radiate a feed signal as an electromagnetic wave; a first block made of a dielectric material and coupled to the first surface of the radiation portion; a second block made of a dielectric material and coupled to the second surface of the radiation portion; a ground portion having a block shape and coupled to the first block, and configured to reflect the electromagnetic wave radiated by the radiation portion back toward the radiation portion; and a director having a block shape and coupled to the second block, wherein an overall width of the ground portion, the first block, and the radiation portion is 2 mm or less, and the first block has a dielectric constant of 3.5 or more to 25 or less.
    Type: Application
    Filed: November 9, 2018
    Publication date: August 1, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Yeong KIM, Sung Yong AN, Sang Jong LEE, Seong Hee CHOI, Kyu Bum HAN, Jeong Ki RYOO, Byeong Cheol MOON, Chang Hak CHOI
  • Patent number: 10367544
    Abstract: Methods and apparatuses are provided for searching for a cell by a communication processor (CP) of a wireless terminal having a plurality of antennas. One of the plurality of antennas is selected based on whether a secondary antenna is in a driving state and whether a finger of a rake receiver has been allocated. The plurality of antennas includes a primary antenna and the secondary antenna. A cell search is performed through the selected one of the plurality of antennas.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: July 30, 2019
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Dae-Cheol Kwon, Jong-Han Kim, Jae-Hyung Lee
  • Publication number: 20190226078
    Abstract: A thin film deposition apparatus that can be simply applied to produce large-sized display devices on a mass scale and that improves manufacturing yield. The thin film deposition apparatus includes a deposition source that discharges a deposition material; a deposition source nozzle unit disposed at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; and a patterning slit sheet disposed opposite to the deposition source nozzle unit and including a plurality of patterning slits arranged in a second direction that is perpendicular to the first direction. A deposition is performed while the substrate or the thin film deposition apparatus moves relative to each other in the first direction, and the deposition source, the deposition source nozzle unit, and the patterning slit sheet are formed integrally with each other.
    Type: Application
    Filed: March 28, 2019
    Publication date: July 25, 2019
    Inventors: Hyun-Sook Park, Chang-Mog Jo, Hee-Cheol Kang, Yun-Mi Lee, Un-Cheol Sung, Yong-Sup Choi, Jong-Heon Kim, Jae-Kwang Ryu
  • Publication number: 20190229301
    Abstract: Provided are a pouch for a secondary battery, which is capable of minimizing a folded area of a bridge part of the pouch that is manufactured by folding two accommodation parts to overlap each other, and a die for forming the pouch for the secondary battery. The pouch for the secondary battery includes a lower accommodation part accommodating an electrode assembly therein, an upper accommodation part covering an opening of the lower accommodation part, and a bridge part connecting the lower accommodation part to the upper accommodation part. When the lower accommodation part and the upper accommodation part are unfolded, a height of the bridge part, which is measured from a bottom surface of the lower accommodation part, is lower than that of the lower accommodation part, which is measured from the bottom surface of the lower accommodation part.
    Type: Application
    Filed: January 22, 2019
    Publication date: July 25, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Dai Hien Li, Woo Yong Lee, Jae Hoon Yoo, Shin Hwa Lee, Kieun Sung, Tae Young Moon, Seung Cheol Choi
  • Patent number: 10362253
    Abstract: An image sensor is provided. The image sensor includes a pixel configured to generate a reset signal and an image signal, a comparator configured to compare the reset signal with a reference signal and generate a first comparison signal, a counter configured to generate a first count value corresponding to the reset signal based on a clock signal and the first comparison signal, and a reference signal generator configured to generate the reference signal which changes between a first level corresponding to a maximum reset count value of the counter and a second level corresponding to a minimum reset count value of the counter during a reset signal period.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: July 23, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyoung Min Koh, Jae Jin Jung, Moo Young Kim, Jae Cheol Yun, Seung Jin Lee
  • Patent number: 10349754
    Abstract: A baby carrier is provided. The baby carrier includes a body part, a pair of shoulder bands coupled to opposite sides of an upper portion of the body part, a waist band coupled to a lower portion of the body part, a load control unit which is coupled to the waist band and is changed to any one posture of a first posture and a second posture to switch a load-applied direction. A ratio of loads applied to the shoulder bands and the waist band is changed in response to the load control unit being changed from the one posture of the first posture and the second posture to the other posture of the first posture and the second posture.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: July 16, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-young Kang, Yeo-hwan Yoon, Jung-hun Lee, Ju-ho Kim, Do-hyeong Park, Jae-ho Baek, Seong-cheol Lim
  • Publication number: 20190211894
    Abstract: A method of manufacturing a brake disk made of gray cast iron is disclosed. The method includes casting a disk body using gray cast iron containing 3.1 wt % to 3.7 wt % of C; machining a surface of the cast disk body; nitriding the disk body by exposing the machined surface to a temperature in the range of 540° C. to 580° C. for 50 min to 70 min, and coating the nitrided disk body.
    Type: Application
    Filed: March 13, 2019
    Publication date: July 11, 2019
    Inventors: Min Gyun CHUNG, Yoon Cheol KIM, Yoon Joo RHEE, Byung Chan LEE, Jae Young LEE
  • Patent number: 10344817
    Abstract: A vehicle brake pad includes a back plate layer, an underlayer, an adhesive layer that mediates between the back plate layer and the underlayer, and a friction material layer, wherein the vehicle brake pad does not include a shim and wherein at least one of the back plate layer, the adhesive layer, and the underlayer has a loss factor of 0.2 or higher, calculated according to the following Equation 1, at temperatures from ?100 to 300° to damp noise of a frequency range of 200 to 20,000 Hz at temperatures from ?100 to 300°: (Equation 1) Loss factor ?=(f2?f1)/f0, where ? is a loss factor, f0 is a noise frequency, f1 is a minimum value of amplitude of a noise frequency when a noise level is reduced by 3 dB, and f2 a maximum value of amplitude when the noise level is reduced by 3 dB.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: July 9, 2019
    Assignee: Hyundai Motor Company
    Inventors: Jae Young Lee, Yoon Joo Rhee, Byung Chan Lee, Jai Min Han, Yoon Cheol Kim