Patents by Inventor Ku Lee

Ku 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: 11710455
    Abstract: A pixel includes an organic light emitting diode (OLED), a pixel circuit, and first and second transistors. The OLD includes a cathode electrode connected to a second power source. The pixel circuit includes a driving transistor having a gate electrode initialized by a third power source. The driving transistor controls the amount of current flowing from a first power source to the second power source via the OLED. The first transistor is connected between a fourth power source and the second power source and an anode electrode of the OLED. The first transistor is turned on based on a scan signal is supplied to a scan line. The second transistor is connected between a data line and the pixel circuit. The second transistor is turned on when the scan signal is supplied to the ith scan line.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: July 25, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Tae Jeong, Min Ku Lee, Ji Hyun Ka, Tae Hoon Kwon, Seung Kyu Lee, Seung Ji Cha
  • Patent number: 11704578
    Abstract: Disclosed herein is a method of providing user-customized learning content in a service server, which includes a) for a specific subject, configuring a problem database including at least one of multiple-choice problems each including at least one example, providing the problem to user devices, and collecting example selection data of users for the problem from the user devices, b) estimating a probability of right answer to the problem for each of the users using the example selection data of each of the users, and assuming that any user selects an example of any problem, calculating, for each problem, a change rate of probabilities of right answer to all problems contained in the problem database for the user, and sorting the problems contained in the problem database in the order of the high change rate to recommend them to the user.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: July 18, 2023
    Inventors: Yeong Min Cha, Dong Min Shin, Jae Min Lee, Young Ku Lee, Jae We Heo
  • Publication number: 20230206833
    Abstract: A display panel includes pads and pixels, signal lines electrically connected to the pads, and a protection circuit electrically connected between one signal line among the signal lines and a first voltage line. The protection circuit includes a first transistor, a first resistor, and a first capacitor. The first transistor includes a first electrode electrically connected to the first voltage line, a second electrode electrically connected to the one signal line, and a gate electrode. The first resistor is electrically connected between the gate electrode of the first transistor and the one signal line. The first capacitor is disposed between the gate electrode of the first transistor and the one signal line.
    Type: Application
    Filed: August 10, 2022
    Publication date: June 29, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Hai Jung IN, Min Ku LEE, Seung Hee LEE
  • Publication number: 20230204094
    Abstract: A differential gear device for a vehicle including a housing, a pinion shaft provided inside the housing, a pinion gear respectively mounted on both ends of the pinion shaft, and a pair of side gears respectively disposed on both sides of a width direction of a vehicle and engaged to the pinion gear. A disconnector actuator system is coupled to one side gear and a drive shaft is coupled to the other side gear among the pair of the side gears. The differential gear device for the vehicle includes a noise reduction unit provided between the cover to which the drive shaft is coupled and the other side gear to prevent a whine noise from being generated between the pinion gear and the other side gear during the operation of the disconnector actuator system.
    Type: Application
    Filed: March 18, 2022
    Publication date: June 29, 2023
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Hyun Ku Lee, Moosuk Kim, Kihyun Lee, Jae Oh Kwak, Geum Muk Chae, Jung-Hwan Moon
  • Publication number: 20230192501
    Abstract: The present invention relates to silicon-based powders and a method for producing the silicon-based powders. The method for producing the silicon-based powders includes a hydrolysis step of a silicon precursor having an alkoxy group, a condensation step and a drying step. By a specific weight ratio of water to the silicon precursor having the alkoxy group and a silicon precursor having a secondary amino group and an alkyl group, in the method for producing the silicon-based powders, the condensation step can be performed without organic solvents, and a modification on silicon-based gels can be performed to enhance a safety of processes and a hydrophobicity of the resulted silicon-based powders, and decrease a thermal conductivity and a bulk density of the resulted silicon-based powders.
    Type: Application
    Filed: December 16, 2022
    Publication date: June 22, 2023
    Inventors: Wen-Bee KUO, Ming-Hung CHENG, Wan-Tun HUNG, Yu-Cheng CHEN, Wen-Hung TSENG, Kuo-Ming HUANG, Wen-Chieh LAI, Shang-Shih LI, Wen-Yuan CHEN, Hsin TSENG, Hsun-Ku LEE, Yu-Hsin CHEN
  • Publication number: 20230192541
    Abstract: The present invention relates to a fiber composite material and a method for producing the fiber composite material. The method for producing the fiber composite material includes a hydrolysis step of a silicon precursor having an alkoxy group, an in-situ condensation step and a drying step. A specific silicon precursor having a secondary amino group and alkyl groups is used therein, as well as a specific weight ratio of the silicon precursor to a fiber material, the in-situ condensation step can be performed in the absence of organic solvents in the method for producing the fiber composite material, and a hydrophobic modification on silicon-based gels can be performed, thereby simplifying the process, decreasing a thermal conductivity of the resulted fiber composite material and preventing drop dust of the resulted fiber composite material.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 22, 2023
    Inventors: Wen-Bee KUO, Ming-Hung CHENG, Wan-Tun HUNG, Yu-Cheng CHEN, Wen-Hung TSENG, Kuo-Ming HUANG, Wen-Chieh LAI, Shang-Shih LI, Wen-Yuan CHEN, Hsin TSENG, Hsun-Ku LEE, Yu-Hsin CHEN
  • Patent number: 11675466
    Abstract: A touch sensor may include a substrate and may include electrode units, first demultiplexers, second demultiplexers, and driving pads all located on the substrate. The electrode units each may include a plurality of electrode groups, the electrode groups each including a plurality of touch electrodes. The first demultiplexers each may include a plurality of sub-demultiplexers and each may be electrically connected to a corresponding one of the electrode units. Each of the sub-demultiplexers of a first demultiplexer may be electrically connected to a corresponding one of the electrode groups of a corresponding electrode unit. The second demultiplexers may be connected between the first demultiplexers and the driving pads.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: June 13, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwa Jeong Kim, Jae Sic Lee, Na Yun Kwak, Dong Hwan Kim, Seung Woo Sung, Min Kyu Woo, Min Ku Lee, Seong Jun Lee, Sang Jin Pak, Sang Hyun Jun
  • Patent number: 11640788
    Abstract: A stage including: an output circuit connected to a first node and a second node; an input connected to a third node and a fourth node; and a plurality of signal processors between the output and the input, the plurality of signal processors electrically connecting the first node and the third node and electrically connecting the second node and the fourth node, wherein the input includes: a seventh transistor connected between a first input terminal and the fourth node and having a gate electrode connected to a second input terminal; a plurality of eighth transistors serially connected between the third node and the second input terminal and having gate electrodes connected to the fourth node; and a ninth transistor connected between the third node and a second power source and having a gate electrode connected to the second input terminal.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: May 2, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seung Kyu Lee, Seung Ji Cha, Ji Hyun Ka, Tae Hoon Kwon, Min Ku Lee, Jin Tae Jeong
  • Publication number: 20230119752
    Abstract: A pixel includes an organic light emitting diode (OLED), a pixel circuit, and first and second transistors. The OLD includes a cathode electrode connected to a second power source. The pixel circuit includes a driving transistor having a gate electrode initialized by a third power source. The driving transistor controls the amount of current flowing from a first power source to the second power source via the OLED. The first transistor is connected between a fourth power source and the second power source and an anode electrode of the OLED. The first transistor is turned on based on a scan signal is supplied to a scan line. The second transistor is connected between a data line and the pixel circuit. The second transistor is turned on when the scan signal is supplied to the ith scan line.
    Type: Application
    Filed: December 8, 2022
    Publication date: April 20, 2023
    Inventors: JIN TAE JEONG, MIN KU LEE, JI HYUN KA, TAE HOON KWON, SEUNG KYU LEE, SEUNG JI CHA
  • Patent number: 11612411
    Abstract: An apparatus for automatically separating hair follicles includes a follicle separating unit configured to cut a skin tissue of a scalp cut from a back of a head of an alopecic patient in units of follicles and to classify follicles by a number of hairs included in each follicle in an incisional hair transplant or to classify follicles each directly extracted from the back of the head of the alopecic patient by the number of hairs included in each follicle in a non-incisional hair transplant, and a follicle separation control unit configured to control an operation of the follicle separating unit.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: March 28, 2023
    Inventors: Tae Hee Kim, Kyoung Ku Lee
  • Patent number: 11586871
    Abstract: The present invention relates to a metal card and a card manufacturing method, and the metal card includes a metal sheet, a machined part made of a plastic material in such a manner as to be inserted into one side surface of the metal sheet, an insulating sheet with a ferromagnetic insulating material in such a manner as to be attached to the underside of the metal sheet, and an inlay sheet with antenna coils in such a manner as to be attached to the underside of the insulating sheet, wherein the metal sheet has a machined part insertion portion formed on one side surface thereof to insert the machined part, and the ferromagnetic insulating material has the shape of one or more pieces or powder.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: February 21, 2023
    Assignees: KONA I CO., LTD., KONA M CO., LTD.
    Inventors: Ki sung Nam, Han seon Kim, Suk Ku Lee
  • Publication number: 20230041440
    Abstract: A follicle identifying device includes an image acquiring unit configured to acquire an image of a follicle and a hair included in the follicle for each follicle separated from a scalp cut from back of a head of an alopecic patient in an incisional hair transplant or each follicle directly extracted from back of a head of an alopecic patient in a non-incisional hair transplant, an image processing unit configured to extract edges of a follicle and a hair from the image of the follicle and the hair acquired by the image acquiring unit, a hair count determining unit configured to determine a hair count in the follicle based on the edges of the follicle and the hair extracted by the image processing unit, and a control unit configured to output the hair count in the follicle determined by the hair count determining unit.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 9, 2023
    Inventors: Tae Hee KIM, Kyoung Ku LEE
  • Publication number: 20230045221
    Abstract: A light emitting display device comprises a substrate, a first pixel electrode disposed on the substrate, a pixel defining film disposed on the first pixel electrode and having a first opening at least partially exposing the first pixel electrode, a first organic light emitting layer disposed on the pixel defining film and overlapping with the first opening of the pixel defining film, and a black matrix disposed on the first organic light emitting layer and having a first opening overlapping with the first organic light emitting layer. Light having passed through the first opening of the black matrix is one of red light, green light, and blue light. The first opening of the black matrix may have a shape with a curved portion.
    Type: Application
    Filed: October 20, 2022
    Publication date: February 9, 2023
    Applicant: Samsung Display Co. Ltd.
    Inventors: Sun Kyu JOO, Byung Chul KIM, Sung Chul KIM, Su Jeong KIM, In Ok KIM, Hye Ran MUN, In Seok SONG, Keun Chan OH, Jae Jin LYU, Yui Ku LEE
  • Publication number: 20230044177
    Abstract: An apparatus for determining defective hair follicles includes an image acquiring unit for acquiring an image of a follicle and a hair for each follicle separated from a scalp of an alopecic patient in an incisional hair transplant or each follicle directly extracted from an alopecic patient in a non-incisional hair transplant, an image processing unit for extracting an outline pattern of the image of the follicle and the hair by performing a contour detection process or an edge detection process on the image, a follicle shape database for storing hair pixel patterns related to various shapes of hairs and follicle pixel patterns related to various shapes of follicles, and a follicle determining unit for determining whether a follicle is normal follicle or defective follicle by comparing the outline pattern of the image with the hair pixel patterns and follicle pixel patterns stored in the follicle shape database.
    Type: Application
    Filed: August 5, 2021
    Publication date: February 9, 2023
    Inventors: Tae Hee KIM, Kyoung Ku LEE
  • Publication number: 20230023598
    Abstract: A composite panel for a battery pack including a composite panel for a battery pack provided on at least one side of a battery cell, and implemented by comprising: a heat dissipation sheet part; a heating sheet part including a heating circuit pattern formed in a predetermined area; and a sensor unit for detecting any one or more of external temperature and swelling of the battery cell. According to this, the composite panel for the battery pack and the battery pack comprising same can simultaneously express the effects of detecting the temperature and swelling of the battery cell by including the sensor unit, and very easily controlling the temperature of the battery cell by having excellent heat dissipation characteristics by including the heat dissipation sheet part, and predetermined heat generation due to the heating sheet part.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 26, 2023
    Applicant: AMOGREENTCH CO., LTD.
    Inventor: Hwan Ku LEE
  • Publication number: 20230026277
    Abstract: Provided is a novel compound and a use thereof. A novel compound according to the presently claimed subject matter induces the activation of MKP-1 protein to block the cellular signaling pathway proceeding in the order of p38/CK2?/NF-?B, thereby very effectively inhibiting an inflammatory response occurring in a respiratory disease. Therefore, a respiratory disease can be prevented, alleviated, or treated by orally administering the novel compound according to the presently claimed subject matter.
    Type: Application
    Filed: November 24, 2020
    Publication date: January 26, 2023
    Applicant: MICROX CO., LTD.
    Inventors: Hern Ku LEE, Myung Kwan HAN, Ki Bum HONG, Ji Hoon LEE, Ji Hoon YU, Jusuk LEE, Shun Young IM, Hwa Ryung SONG
  • Patent number: 11542854
    Abstract: An engine control apparatus and an engine control method for a vehicle are disclosed. The engine control apparatus includes: an integrated thermal management valve in which an opening degree of a plurality of valves is adjusted by rotation of a cam; a storage to store an opening degree of the integrated thermal management valve based on a road slope and a transmission gear value; and a controller that controls the opening degree of the integrated thermal management valve by using an engine revolutions per minute (RPM) and an accelerator pedal value. In particular, when the accelerator pedal value is smaller than a predetermined threshold, the controller controls the opening degree of the integrated thermal management valve based on the road slope and the transmission gear value.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: January 3, 2023
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Su Ho Lee, Gun Ku Lee
  • Publication number: 20220398486
    Abstract: The present invention is to predict a correct answer probability of a user for a specific question with higher accuracy, and provide learning content having more increased efficiency. A method for operating a learning content recommendation system includes transmitting question information including information on a plurality of questions to a user, receiving solving result information that is the user's response for the plurality of questions, and training a user characteristic model based on the question information and the solving result information, wherein the training of the user characteristic model includes assigning a weight to the user characteristic model based on a degree of influence on a correct answer probability in a sequence of questions input to the user characteristic model.
    Type: Application
    Filed: June 10, 2021
    Publication date: December 15, 2022
    Inventors: Young Nam LEE, Young Duck CHOI, Jung Hyun CHO, Hyun Bin LOH, Chan You HWANG, Young Ku LEE
  • Publication number: 20220393781
    Abstract: The present disclosure relates to a method for operating a terminal and a base station in a wireless communication system and an apparatus for supporting the same. In an embodiment of the present disclosure, a method for operating a terminal in a wireless communication system may include: transmitting a first message including information related to learning; receiving a second message including configuration information for learning; transmitting an uplink reference signal; and transmitting channel information related to a downlink channel measured based on a downlink reference signal.
    Type: Application
    Filed: July 9, 2020
    Publication date: December 8, 2022
    Inventors: Ilhwan KIM, Jong Ku LEE, Ikjoo JUNG, Sung Ryong HONG
  • Patent number: 11505657
    Abstract: The system for preparing silica aerogel according to the present invention comprises a raw material supply part transferring at least one raw material of de-ionized water, water glass, a surface modifier, an inorganic acid, and an organic solvent to a mixing part, the mixing part mixing the raw materials transferred from the raw material supply part to produce silica wet gel, a drying part drying the silica wet gel to produce the silica aerogel, a recovery part recovering a portion of the vaporized raw material of the raw materials used in at least one of the mixing part and the drying part, and a heat transfer part transferring heat to at least one of the mixing part and the drying part, wherein the system further comprises a pulverizing part that pulverizes the raw material from the row material supply part to the mixing part.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: November 22, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Ye Hon Kim, Dong Kwon Lee, Jong Ku Lee, Je Kyun Lee