Patents by Inventor Jun Ho Choi

Jun Ho 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).

  • Patent number: 11942635
    Abstract: The present invention relates to a positive electrode active material and a lithium secondary battery using a positive electrode containing the positive electrode active material. More particularly, the present invention relates to a positive electrode active material that is able to solve a problem of increased resistance according to an increase in Ni content by forming a charge transport channel in a lithium composite oxide and a lithium secondary battery using a positive electrode containing the positive electrode active material.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 26, 2024
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Moon Ho Choi, Jun Won Suh, Jin Kyeong Yun, Jung Han Lee, Mi Hye Yun, Seung Woo Choi, Gwang Seok Choe, Ye Ri Jang, Joong Ho Bae
  • Publication number: 20240092484
    Abstract: A tilt prop aircraft is provided, including a first longeron and a second longeron capable of tilting relatively to each other, a tilt actuator disposed on the second longeron, a first power transmission member rotated by the tilt actuator, a second power transmission member fixed to the first longeron and coupled to the first power transmission member to transmit a rotational movement of the first power transmission member by turning 90 degrees in different planes, a crank fixed to the second longeron and extending through a slot in the first longeron and protruding inwardly from the first longeron, and a connecting rod connected to the crank so as to be relatively rotatable to the crank, and connected to the pitch control rod.
    Type: Application
    Filed: August 15, 2023
    Publication date: March 21, 2024
    Applicant: KOREA AEROSPACE RESEARCH INSTITUTE
    Inventors: Jun Ho CHO, Myeong Kyu LEE, Seong Wook CHOI
  • Publication number: 20240086603
    Abstract: A method of reinforcement learning of a neural network device for generating a verification vector for verifying a circuit design comprising a circuit block includes inputting a test vector to the circuit block, generating one or more rewards based on a coverage corresponding to the test vector, the coverage being determined based on a state transition of the circuit block based on the test vector, and applying the one or more rewards to a reinforcement learning.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Applicant: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: In HUH, Jeong-hoon KO, Hyo-jin CHOI, Seung-ju KIM, Chang-wook JEONG, Joon-wan CHAI, Kwang-II PARK, Youn-sik PARK, Hyun-sun PARK, Young-min OH, Jun-haeng LEE, Tae-ho LEE
  • Publication number: 20240085469
    Abstract: A transmitting and receiving circuit may include a first CMOS inverter configured to receive a first power supply signal and a first input signal. The transmitting and receiving circuit may include a first calculation amplifier including a non-inverted input terminal connected to an output terminal of the first CMOS inverter, and a first resistor connected between the output terminal of the first calculation amplifier and a first node. The output terminal of the first calculation amplifier and an inverted input terminal of the first calculation amplifier may be connected to each other. A first output signal may have a level smaller than that of the first input signal and may be output to the first node.
    Type: Application
    Filed: September 11, 2023
    Publication date: March 14, 2024
    Inventors: Seong Kwan LEE, Min Ho KANG, Hyung-Sun RYU, Cheol Min PARK, Jun Yeon WON, Jae Moo CHOI
  • Publication number: 20240079642
    Abstract: The present invention relates to a method for preparing an alkali metal ion conductive chalcogenide-based solid electrolyte, a solid electrolyte prepared thereby, and an all-solid-state battery comprising the same.
    Type: Application
    Filed: January 11, 2022
    Publication date: March 7, 2024
    Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE
    Inventors: Yoon Cheol HA, Sang Min LEE, Byung Gon KIM, Gum Jae PARK, Jun Woo PARK, Jun Ho PARK, Ji Hyun YU, Won Jae LEE, You Jin LEE, Hae Young CHOI
  • Publication number: 20240066564
    Abstract: Proposed are a substrate processing apparatus and a substrate processing method capable of efficiently preventing contamination of a substrate and a processing space caused by a reverse flow of purge gas.
    Type: Application
    Filed: March 27, 2023
    Publication date: February 29, 2024
    Applicant: SEMES CO., LTD.
    Inventors: Do Hyung KIM, Dae Hun KIM, Young Jin KIM, Tae Ho KANG, Young Joon HAN, Eun Hyeok CHOI, Jun Gwon LEE
  • Publication number: 20240074050
    Abstract: A printed circuit board according to an embodiment includes: an insulation layer including a recess portion; and a connection pad disposed on the recess portion of the insulation layer and protruded from the recess portion, wherein the connection pad may include a protrusion and a concave portion that is lower than the protrusion, and a surface height of the protrusion of the connection pad may be substantially the same as or less than a surface height of the insulation layer.
    Type: Application
    Filed: May 30, 2023
    Publication date: February 29, 2024
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jun Ki Min, Seong Ho Choi
  • Publication number: 20240044581
    Abstract: A heat exchanger for vehicles includes: a plurality of first stacked plates forming a condensing portion in which a refrigerant is condensed through heat exchange between a coolant and the refrigerant; a receiver container for storing the refrigerant passing through the condensing portion; a plurality of second stacked plates forming a sub-cooling portion for cooling the refrigerant through heat exchange between the coolant and the refrigerant discharged from the receiver container; and an intermediate plate between the first stacked plates and the second stacked plates and comprising through holes through which the refrigerant and the coolant respectively move.
    Type: Application
    Filed: October 22, 2021
    Publication date: February 8, 2024
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Young Sam SHIN, Jeong Kyu PARK, Jun Ho CHOI
  • Publication number: 20240005901
    Abstract: An earphone with an ANC automatic blocking function includes: a danger occurrence notification sound information registration unit registering and storing unique sound information of a danger occurrence notification sound certified by a public institution; an external sound recognition unit recognizing an external sound during operation of an ANC function; a sound information comparison analysis unit comparing sound information recognized by the external sound recognition unit with sound information registered in the danger occurrence notification sound information registration unit and analyzing and determining whether matching sound information exists; and an ANC function maintaining and blocking controller blocking the ANC function immediately when it is determined from an analysis result of the sound information comparison analysis unit that there exists sound information matching the sound information recognized by the external sound recognition unit.
    Type: Application
    Filed: November 15, 2022
    Publication date: January 4, 2024
    Applicant: PUKYONG NATIONAL UNIVERSITY INDUSTRY-UNIVERSITY COOPERATION FOUNDATION
    Inventors: Jun Ho CHOI, Ryun Seok OH, Ji Won GU
  • Publication number: 20230331066
    Abstract: A heat exchanger for a vehicle configured to perform heat exchange between coolant and refrigerant includes: a plurality of stacked plates sequentially stacked to form a plurality of refrigerant spaces filled with the refrigerant and a plurality of coolant spaces filled with the coolant; a thermal expansion valve disposed in the vicinity of the plurality of the stacked plates; and a connection block disposed between the thermal expansion valve and the plurality of stacked plates. The connection block comprises a refrigerant inlet passage for introducing the refrigerant introduced through the thermal expansion valve into the plurality of the stacked plates and a refrigerant discharge passage for introducing the refrigerant discharged from the plurality of the stacked plates into the thermal expansion valve.
    Type: Application
    Filed: September 29, 2021
    Publication date: October 19, 2023
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Young Sam SHIN, Jeong Kyu PARK, Jun Ho CHOI
  • Patent number: 11729093
    Abstract: A mobile accelerator system includes point of presences (POPs) that includes an entry POP. The entry POP receives a query to a content server from a mobile device via a dedicated transport channel. The entry POP determines a direct connection score for a direct connection between the mobile device and the content server that does not traverse the mobile accelerator system. The entry POP determines a POP connection score for a connection between the mobile device and the content server through the entry POP and a candidate exit POP. The entry POP determines a dynamic path ranking based on the direct connection score, the POP connection score, and other POP connection score(s) associated with other candidate exit POP(s). The entry POP determines at least a portion of a dynamic path between the mobile device based on the dynamic path ranking and routes data transfers through that dynamic path.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: August 15, 2023
    Assignee: CLOUDFLARE, INC.
    Inventors: Jeff Sesung Kim, Jun Ho Choi
  • Patent number: 11669158
    Abstract: Systems and methods for detecting eye information are described. According to one embodiment, a detecting device includes a determination unit, a generation unit, and a detection unit. The determination unit is configured to determine whether a user wears glasses from an input image by using a first neural network including a plurality of filters. The generation unit is configured to generate a face image in which the glasses are removed from the input image by using a learned generator when a glasses-wearing signal is received from the determination unit. The detection unit is configured to generate an eye image by receiving the input image from the determination unit or receiving the face image from the generation unit and detect a pupil from the eye image using a second neural network including a plurality of filters.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: June 6, 2023
    Assignees: SAMSUNG DISPLAY CO., LTD., INHA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Young Chan Kim, Min Gyeong Jo, Byung Cheol Song, Kang Il Lee, Jun Ho Choi
  • Patent number: 11637157
    Abstract: An organic light emitting display apparatus includes a plurality of pixels, each of the pixels including first mirror pattern having an opening, and first to third sub pixels. The first sub pixels includes a first light emitting structure and is positioned to emit first color light through the opening, the second sub pixel includes a second light emitting structure positioned to emit second color light through the opening, and the third sub pixel includes a third light emitting structure positioned to emit third color light through the opening.
    Type: Grant
    Filed: January 20, 2017
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Ho Choi, Joon-Youp Kim, Young-Woo Song, Jin-Koo Chung
  • Patent number: 11614580
    Abstract: The exemplary embodiments provide an optical fiber sensor and a vector measuring device which measure a motion of a subject using a double Bragg grating formed in a core with a helical structure and measure a chiral motion inflection point vector.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: March 28, 2023
    Assignee: UIF (University Industry Foundation), Yonsei University
    Inventors: Jun Ho Choi, Song Bi Lee, Song A Choi
  • Publication number: 20230077576
    Abstract: A mobile accelerator system includes point of presences (POPs) that includes an entry POP. The entry POP receives a query to a content server from a mobile device via a dedicated transport channel. The entry POP determines a direct connection score for a direct connection between the mobile device and the content server that does not traverse the mobile accelerator system. The entry POP determines a POP connection score for a connection between the mobile device and the content server through the entry POP and a candidate exit POP. The entry POP determines a dynamic path ranking based on the direct connection score, the POP connection score, and other POP connection score(s) associated with other candidate exit POP(s). The entry POP determines at least a portion of a dynamic path between the mobile device based on the dynamic path ranking and routes data transfers through that dynamic path.
    Type: Application
    Filed: August 16, 2022
    Publication date: March 16, 2023
    Inventors: Jeff Sesung Kim, Jun Ho Choi
  • Publication number: 20230056734
    Abstract: An edge server receives a first request message for transmission to the host device. The edge server determines a first congestion control algorithm based on the first request message, including characteristics of the first request message. The edge server applies the first congestion control algorithm to the transport connection for application to the transmission of the first request message. Subsequently, the edge server receives a second request message for transmission to the host device over the transport connection.
    Type: Application
    Filed: November 7, 2022
    Publication date: February 23, 2023
    Inventor: Jun Ho Choi
  • Publication number: 20230008587
    Abstract: A heat exchanger for vehicles includes a condenser configured such that coolant and refrigerant performs heat exchange while flowing in a state separated from each other and being formed by a stacking of a plurality of first heat exchange plates; a gas-liquid separator for separating gaseous components from the refrigerant that has passed through the condenser; a supercooler configured such that the coolant having passed the condenser and the coolant having passed the gas-liquid separator performs heat exchange while flowing in a separated state from each other and being formed by a stacking of a plurality of second heat exchange plates; and a connector that is interposed between the condenser and the supercooler and forms a coolant passage allowing the coolant to flow from the condenser to the supercooler and a refrigerant passage allowing the refrigerant to flow from the condenser to the supercooler via the gas-liquid separator.
    Type: Application
    Filed: December 14, 2020
    Publication date: January 12, 2023
    Applicant: ESTRA AUTOMOTIVE SYSTEMS CO., LTD.
    Inventors: Young Sam SHIN, Jong Won KIM, Jun Ho CHOI, Yeong Geun JUNG
  • Patent number: 11542372
    Abstract: Provided are thermoplastic polymer particles having an aspect ratio of 1.00 or more and less than 1.05, and a roundness of 0.95 to 1.00. The thermoplastic polymer particles are formed from a thermoplastic polymer resin in a continuous matrix phase. The thermoplastic polymer particles show a peak cold crystallization temperature (Tcc) at a temperature between a glass transition temperature (Tg) and the melting point (Tm) in a differential scanning calorimetry (DSC) curve which is derived from temperature rise analysis at 10° C./min by differential scanning calorimetry.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: January 3, 2023
    Inventors: Jae Ho Lim, Sung Yong Kang, Kyoung Min Kang, Hee-Jung Lee, Min Gyung Kim, Chang-Young Park, Jun Ho Choi, Jae Han Song, Yu Jin Go
  • Publication number: 20220380493
    Abstract: The present invention relates to polypropylene particles and a method for preparing same, the polypropylene particles being formed from a polypropylene resin, and having a melting index (M.I.) of 1000 g/10 min or more when the particles are re-melted under a temperature condition of 150° C. to 250° C. and a condition of atmospheric pressure to a pressure of 15 MPa.
    Type: Application
    Filed: October 7, 2020
    Publication date: December 1, 2022
    Applicant: LX Hausys, Ltd.
    Inventors: Jae Han Song, Sung Yong Kang, Hee-Jung Lee, Min Gyung Kim, Jae Ho Lim, Jun Ho Choi, Yu Jin Go, Hyo Jae Kong
  • Patent number: D974235
    Type: Grant
    Filed: May 31, 2021
    Date of Patent: January 3, 2023
    Inventors: Jung-Taik Hur, Jun-Ho Choi