Patents by Inventor Cheol-Hee Park

Cheol-Hee Park 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).

  • Compound semiconductor and use thereof
    Patent number: 11162159
    Abstract: The present invention provides a novel compound semiconductor that has improved thermoelectric figure of merit as well as excellent electric conductivity, and thus, can be applied for various uses such as thermoelectric conversion material of a thermoelectric conversion device, a solar battery, and the like, and a method for preparing the same.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 2, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Min Kyoung Kim, Cheol Hee Park, Chee Sung Park, Myung Jin Jung, Yu Ho Min
  • THERMOELECTRIC MATERIAL AND THERMOELECTRIC DEVICE INCLUDING THE SAME
    Publication number: 20210336117
    Abstract: A thermoelectric material which minimize the content of components that degrade thermoelectric performance and thus can be usefully used in thermoelectric devices including the same.
    Type: Application
    Filed: May 8, 2019
    Publication date: October 28, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Jaehyun KIM, Sujeong LEE, Yeseul LEE, Cheol Hee PARK
  • Thermoelectric material and thermoelectric device including the same
    Patent number: 11158779
    Abstract: A thermoelectric material which minimize the content of components that degrade thermoelectric performance and thus can be usefully used in thermoelectric devices including the same.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: October 26, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jaehyun Kim, Sujeong Lee, Yeseul Lee, Cheol Hee Park
  • Cellular vehicle-to-everything out of coverage synchronization
    Patent number: 11140641
    Abstract: Aspects directed towards synchronizing out of coverage (OOC) vehicle-to-everything (V2X) communications are disclosed. In one example, a scheduled entity detects a loss of a synchronization signal associated with a V2X communication by detecting when a timing uncertainty value or error value is greater than a threshold value. Packet timing information is then received in response to the loss of the synchronization signal from at least one user equipment (UE) synchronized with the synchronization signal. The scheduled entity then maintains the V2X communication by performing a timing adjustment based on the packet timing information.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: October 5, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Cheol Hee Park, Feng Lu, Arvind Vardarajan Santhanam, Subramanya Rao, Sivaramakrishna Veerepalli, Cheng Tan, Sean Vincent Maschue, Ashish Shankar Iyer, Giridhar Ramakrishnan, Yax Patel, Srinivasan Rajagopalan
  • Compound semiconductor and use thereof
    Patent number: 11127891
    Abstract: A novel compound semiconductor that can be used for a solar battery, a thermoelectric material, and the like, and use thereof. The novel compound semiconductor may be represented by the following Chemical Formula: NdxSyCo4Sb12-zQz, wherein Q is one or more selected from the O, Se, or Te, 0<x<0.2, 0<y?1, and 0<z<12.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: September 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Cheol Hee Park, Min Kyoung Kim, Myung Jin Jung, Chee Sung Park
  • Compound semiconductor and use thereof
    Patent number: 11124860
    Abstract: The present invention provides a novel compound semiconductor that has improved thermoelectric figure of merit as well as excellent electric conductivity, and thus, can be applied for various uses such as thermoelectric conversion material of a thermoelectric conversion device, a solar battery, and the like, and a method for preparing the same.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Min Kyoung Kim, Cheol Hee Park, Chee Sung Park, Myung Jin Jung, Yu Ho Min
  • ANTENNA SWITCH DIVERSITY OR CYCLIC DELAY DIVERSITY SELECTION
    Publication number: 20210288709
    Abstract: Aspects relate to mechanisms for a wireless communication device to select between a cyclic delay diversity mode and an antenna switch diversity mode for transmission of a signal based on at least one parameter associated with communication over a wireless channel. The parameter(s) may include a channel estimation parameter associated with the wireless channel, a communication parameter associated with at least one communication on the wireless channel, or a combination thereof.
    Type: Application
    Filed: March 16, 2021
    Publication date: September 16, 2021
    Inventors: Peer BERGER, Shay LANDIS, Moshe BEN-ARI, Assaf TOUBOUL, Amit BAR-OR TILLINGER, Michael LEVITSKY, Cheol Hee PARK, Haim Mendel WEISSMAN, Jungsik PARK, In Hyuck YEO
  • THERMOELECTRIC MODULE
    Publication number: 20210273149
    Abstract: A thermoelectric module that has excellent thermal, electric properties, can realize high joining force between thermoelectric elements and an electrode, and can maintain stable joining even at a high temperature.
    Type: Application
    Filed: May 3, 2021
    Publication date: September 2, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Su Jin KIM, Il Ha LEE, Dong Sik KIM, Byung Kyu LIM, Cheol Hee PARK, Ki Hwan KIM
  • Chalcogen-containing compound, its preparation method and thermoelectric element comprising the same
    Patent number: 11097947
    Abstract: A chalcogen-containing compound of the following chemical formula which exhibits an excellent thermoelectric performance index (ZT) through an increase in power factor and a decrease in thermal conductivity, a method for preparing the same, and a thermoelectric element including the same: MyV1-ySnxSb2Tex+3, wherein V is vacancy, M is at least one alkali metal, x?6, and 0<y?0.4.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 24, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Min Kyoung Kim, Yu Ho Min, Cheol Hee Park, Kyung Moon Ko, Chee Sung Park, Myung Jin Jung
  • TECHNIQUES FOR REDUCING SEMI-PERSISTENT SCHEDULING LATENCY
    Publication number: 20210243765
    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may adjust a basic safety message generation periodicity based at least in part on a semi-persistent scheduling periodicity for transmitting basic safety messages. The UE may generate one or more basic safety messages based at least in part on the adjusted basic safety message generation periodicity. Numerous other aspects are provided.
    Type: Application
    Filed: February 4, 2021
    Publication date: August 5, 2021
    Inventors: Ralph Akram GHOLMIEH, Sean Vincent MASCHUE, Shailesh PATIL, Cheol Hee PARK, Tien Viet NGUYEN, Hamza Ijaz ABBASI, Ashish Shankar IYER, Praveen Kumar APPANI, Srinivasan RAJAGOPALAN
  • Compound semiconductor and use thereof
    Patent number: 11072530
    Abstract: A novel compound semiconductor which can be used for a solar cell, a thermoelectric material, or the like, and the use thereof.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: July 27, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Cheol Hee Park, Chee Sung Park, Min Kyoung Kim
  • Methods and apparatuses for transmission scheduling on multiple frequencies
    Patent number: 11039458
    Abstract: A method, apparatus, and computer-readable medium at a transmitting user equipment (UE) in a distributed cellular vehicle-to-everything environment are disclosed to determine a schedule for transmissions on subchannels of multiple frequencies based on a set of UE-specific, dynamic, and performance related metrics or criteria. The metrics may include an estimated number of users on a subchannel, a best-bandwidth fit, channel loading conditions, transmission range, and quality requirements of an application, among others. Such a schedule for transmissions on subchannels of multiple frequencies may result in either an improved capacity utilization, an improved communication quality, or both.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: June 15, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Cheol Hee Park, Arvind Santhanam, Feng Lu, Taoufik Tani, Thomas Christol, Yunsong Mu, Yuanbo Wang, Gang Xiao, Abhijit Navalekar, Ashish Shankar Iyer, Subramanya Rao, Srinivasan Rajagopalan
  • POLYPROPYLENE RESIN COMPOSITION WITH IMPROVED SCRATCH RESISTANCE AND VEHICLE MOLDED PARTS MANUFACTURED THEREFROM
    Publication number: 20210163726
    Abstract: Provided is a polypropylene resin composition which imparts excellent impact resistance by comprising polypropylene resin, a thermoplastic elastomer, and a wool-like inorganic filler, and simultaneously imparts dimensional stability through control of low shrinkage and orientation, and also has very excellent scratch resistance.
    Type: Application
    Filed: October 30, 2018
    Publication date: June 3, 2021
    Inventors: Cheol-Hee PARK, Byung-Wook KANG, Won-Keon SEO
  • Chalcogen-containing compound, its preparation method and thermoelectric element comprising the same
    Patent number: 11024438
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1 which exhibits excellent phase stability even at a low temperature, particularly at a temperature corresponding to an operating temperature of a thermoelectric element, and also exhibits a significantly superior power factor and thermoelectric performance index due to its excellent electrical conductivity and low thermal conductivity caused by its unique crystal lattice structure, a method for preparing the same, and a thermoelectric element including the same. [Chemical Formula 1]—V1-2xSn4Bi2-xAg3xSe7, wherein V is vacancy and 0<x<0.5.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: June 1, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Min Kyoung Kim, Yu Ho Min, Cheol Hee Park, Kyung Moon Ko, Chee Sung Park, Myung Jin Jung
  • LOW COST POWER EFFICIENT ANTENNA SWITCH DIVERSITY AND CYCLIC DELAY DIVERSITY TRANSCEIVER
    Publication number: 20210159956
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine to operate in an antenna switch diversity mode to transmit an uplink signal according to an antenna switching pattern, the antenna switching pattern comprising switching between a first transmit chain coupled to a first antenna and a second transmit chain coupled to a second antenna. The UE may transmit at least a first portion of the uplink signal using the first transmit chain coupled to the first antenna, the first transmit chain coupled to the first antenna. The UE may transmit at least a second portion of the uplink signal using the second transmit chain coupled to the second antenna, the second transmit chain coupled to the second antenna.
    Type: Application
    Filed: November 19, 2020
    Publication date: May 27, 2021
    Inventors: Haim Weissman, Cheng Tan, In Hyuck Yeo, Cheol Hee Park, Jungsik Park
  • Compound semiconductor and manufacturing method thereof
    Patent number: 11001504
    Abstract: Disclosed is a compound semiconductor material with excellent performance and its utilization. The compound semiconductor may be expressed by Chemical Formula 1 below: M1aCo4Sb12-xM2x??Chemical Formula 1 where M1 and M2 are respectively at least one selected from In and a rare earth metal element, 0?a?1.8, and 0?x?0.6.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: May 11, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Jae-Ki Lee, Tae-Hoon Kim, Cheol-Hee Park
  • Metal paste and thermoelectric module
    Patent number: 10998482
    Abstract: The present invention relates to a metal paste including: a first metal powder including nickel (Ni); a second metal powder including at least one selected from the group consisting of tin (Sn), zinc (Zn), bismuth (Bi), and indium (In); and a dispersing agent, and to a thermoelectric module which adopts a bonding technique using the metal paste.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: May 4, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Dae Ki Lee, Dong-Sik Kim, Cheol-Hee Park
  • Managing hybrid automatic repeat request (HARQ) memory for radio tune-away
    Patent number: 10979182
    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may be configured to include procedures to selectively release a portion of hybrid automatic repeat request (HARQ) memory based on the priority of each component carrier of the first connection when performing a radio tune-away to a second connection. For example, the UE may determine the amount of memory space associated with the HARQ processes for the second connection and selectively release a portion of HARQ memory based on the priority of each component carrier of the first connection when the determined amount of memory space is greater than the empty space of the HARQ memory.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: April 13, 2021
    Assignee: QUALCOMM Incorporated
    Inventors: Ali Jarrahi Khameneh, Deepti Mani, Cheol Hee Park
  • POWER ENHANCEMENT TECHNIQUES FOR VEHICLE-TO-PEDESTRIAN WIRELESS COMMUNICATION SYSTEMS
    Publication number: 20200404587
    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a wake up time period corresponding to a wake up cycle, transmit a message that includes an identifier of the UE within a first resource pool during a first portion of the wake up time period based on the wake up cycle, and monitor for a paging signal from a vehicle UE during a paging occasion of the wake up time period based on transmitting the message. A vehicle UE may identify a wake up configuration for a wake up time period, receive, within a first portion of the wake up time period, a message within a resource pool that includes the identifier of the UE. The vehicle UE may transmit a paging signal within a paging occasion of the wake up time period.
    Type: Application
    Filed: June 15, 2020
    Publication date: December 24, 2020
    Inventors: Anantharaman Balasubramanian, Sudhir Kumar Baghel, Shailesh Patil, James Francis Geekie, Farrukh Rashid, Cheol-Hee Park
  • CHALCOGEN-CONTAINING COMPOUND, ITS PREPARATION METHOD AND THERMOELECTRIC ELEMENT COMPRISING THE SAME
    Publication number: 20200377367
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1 which exhibits excellent phase stability at a low temperature, particularly at a temperature corresponding to the driving temperature of a thermoelectric element, and also exhibits an excellent thermoelectric performance index through an increase in a power factor and a decrease in thermal conductivity, a method for preparing the same, and a thermoelectric element including the same: V1-xMxSn4Bi2Se7-yTey ??[Chemical Formula 1] In the above Formula 1, V is a vacancy, M is an alkali metal, x is greater than 0 and less than 1, and y is Greater than 0 and less than or equal to 1.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 3, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Min Kyoung KIM, Yu Ho MIN, Cheol Hee PARK, Kyung Moon KO, Chee Sung PARK, Myung Jin JUNG