Patents by Inventor Yong Ju Park

Yong Ju 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).

  • Patent number: 12199450
    Abstract: A system for foreign object detection (FOD) in wireless power transfer is proposed. The system may include a balanced coil which is disposed between a transmitter coil and a receiver coil and which includes a Maxwell bridge circuit. The system may also include a temperature sensor configured to measure a temperature of the transmitter coil. The system may further include a processor configured to determine whether an FO is present between the transmitter coil and the receiver coil on the basis of voltage values detected at both ends of the bridge circuit. The FOD system can recognize the FO by finding a maximum resonant frequency at which a metal reacts using resonant frequency sweeping in a bridge circuit.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: January 14, 2025
    Assignee: Korea Electronics Technology Institute
    Inventors: Yong Ju Park, Yong Seok Lim, Yong Seong Kim, Hae Yong Jung, Hye Jung Kim
  • Patent number: 12022444
    Abstract: Provided is a power transmission and reception system and a power transmission and reception system method capable of simultaneously transmitting/receiving data and power and including an array antenna including a plurality of antennas, a radio frequency (RF) unit and a baseband unit provided for data transmission and reception, a slot allocation unit configured to allocate a channel for power transfer and a slot for data transmission in a Contention Access Period (CAP) section, and allocate a slot for power transfer in consideration of whether to perform cooperative charging with a nearby another Simultaneous Wireless Information and Power Transfer (SWIPT) power transfer system, and a power supply and beamforming control unit configured to adjust the array antenna such that a power signal to be transmitted is beamformed according to a positioning beacon from a power receiving unit (PRU).
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: June 25, 2024
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Yong Ju Park, Yong Seok Lim
  • Publication number: 20230416910
    Abstract: The present invention discloses a transient sensor using molybdenum disulfide and a method of manufacturing the same. According to one embodiment of the present invention, the transient sensor using molybdenum disulfide includes a water-soluble substrate; a water-soluble insulating layer deposited on the water-soluble substrate; an electrode layer formed of any one of molybdenum (Mo) and magnesium (Mg) and formed on the water-soluble insulating layer; and a channel layer formed of molybdenum disulfide and formed on the water-soluble insulating layer to be connected to the electrode layer. In addition, when the transient sensor is inserted into living matter, the transient sensor can be dissolved within a critical time in the living matter.
    Type: Application
    Filed: September 14, 2023
    Publication date: December 28, 2023
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jong Hyun AHN, Xiang CHEN, Yong Ju PARK, Min Pyo KANG
  • Publication number: 20230387725
    Abstract: A system for foreign object detection (FOD) in wireless power transfer is proposed. The system may include a balanced coil which is disposed between a transmitter coil and a receiver coil and which includes a Maxwell bridge circuit. The system may also include a temperature sensor configured to measure a temperature of the transmitter coil. The system may further include a processor configured to determine whether an FO is present between the transmitter coil and the receiver coil on the basis of voltage values detected at both ends of the bridge circuit. The FOD system can recognize the FO by finding a maximum resonant frequency at which a metal reacts using resonant frequency sweeping in a bridge circuit.
    Type: Application
    Filed: November 23, 2022
    Publication date: November 30, 2023
    Inventors: Yong Ju Park, Yong Seok Lim, Yong Seong Kim, Hae Yong Jung, Hye Jung Kim
  • Patent number: 11781217
    Abstract: The present invention discloses a transient sensor using molybdenum disulfide and a method of manufacturing the same. According to one embodiment of the present invention, the transient sensor using molybdenum disulfide includes a water-soluble substrate; a water-soluble insulating layer deposited on the water-soluble substrate; an electrode layer formed of any one of molybdenum (Mo) and magnesium (Mg) and formed on the water-soluble insulating layer; and a channel layer formed of molybdenum disulfide and formed on the water-soluble insulating layer to be connected to the electrode layer. In addition, when the transient sensor is inserted into living matter, the transient sensor can be dissolved within a critical time in the living matter.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: October 10, 2023
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jong Hyun Ahn, Xiang Chen, Yong Ju Park, Min Pyo Kang
  • Publication number: 20220078790
    Abstract: Provided is a power transmission and reception system and a power transmission and reception system method capable of simultaneously transmitting/receiving data and power and including an array antenna including a plurality of antennas, a radio frequency (RF) unit and a baseband unit provided for data transmission and reception, a slot allocation unit configured to allocate a channel for power transfer and a slot for data transmission in a Contention Access Period (CAP) section, and allocate a slot for power transfer in consideration of whether to perform cooperative charging with a nearby another Simultaneous Wireless Information and Power Transfer (SWIPT) power transfer system, and a power supply and beamforming control unit configured to adjust the array antenna such that a power signal to be transmitted is beamformed according to a positioning beacon from a power receiving unit (PRU).
    Type: Application
    Filed: September 7, 2021
    Publication date: March 10, 2022
    Inventors: Yong Ju PARK, Yong Seok LIM
  • Patent number: 11233107
    Abstract: The present disclosure discloses an active matrix organic light-emitting diode display device and a manufacturing method thereof. The method includes forming a sacrificial layer on a carrier layer; forming a flexible substrate on the sacrificial layer; forming a first insulating layer on the flexible substrate; forming at least one transition metal chalcogenide based backplane on the first insulating layer; and forming an opening unit after forming a capping layer on the at least one transition metal chalcogenide based backplane; and forming at least one active matrix organic light-emitting diode unit which is electrically connected to the at least one transition metal chalcogenide based backplane in the opening unit.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: January 25, 2022
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jong Hyun Ahn, Soo Young Kim, Min Woo Choi, Yong Ju Park, Bhupendra Kumar Sharma, Sa Rang Bae
  • Publication number: 20210151537
    Abstract: The present disclosure discloses an active matrix organic light-emitting diode display device and a manufacturing method thereof. The method includes forming a sacrificial layer on a carrier layer; forming a flexible substrate on the sacrificial layer; forming a first insulating layer on the flexible substrate; forming at least one transition metal chalcogenide based backplane on the first insulating layer; and forming an opening unit after forming a capping layer on the at least one transition metal chalcogenide based backplane; and forming at least one active matrix organic light-emitting diode unit which is electrically connected to the at least one transition metal chalcogenide based backplane in the opening unit.
    Type: Application
    Filed: April 22, 2019
    Publication date: May 20, 2021
    Inventors: Jong Hyun AHN, Soo Young KIM, Min Woo CHOI, Yong Ju PARK, Bhupendra Kumar SHARMA, Sa Rang BAE
  • Publication number: 20200208261
    Abstract: The present invention discloses a transient sensor using molybdenum disulfide and a method of manufacturing the same. According to one embodiment of the present invention, the transient sensor using molybdenum disulfide includes a water-soluble substrate; a water-soluble insulating layer deposited on the water-soluble substrate; an electrode layer formed of any one of molybdenum (Mo) and magnesium (Mg) and formed on the water-soluble insulating layer; and a channel layer formed of molybdenum disulfide and formed on the water-soluble insulating layer to be connected to the electrode layer. In addition, when the transient sensor is inserted into living matter, the transient sensor can be dissolved within a critical time in the living matter.
    Type: Application
    Filed: December 31, 2018
    Publication date: July 2, 2020
    Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Jong Hyun AHN, Xiang CHEN, Yong Ju PARK, Min Pyo KANG
  • Patent number: 8673965
    Abstract: Disclosed is a composition for treating arthritis containing a dibenzo-p-dioxin derivative as an active ingredient. This dibenzo-p-dioxin derivative is very effective in inhibiting NF-kB and AP-1 activity, alleviates the symptoms of degenerative arthritis and rheumatoid arthritis without irritating the skin or causing side effects, and can continue to exhibit improvement effects for a considerable period of time after discontinuation of treatment. Additionally, when the dibenzo-p-dioxin derivative is contained in liposomes, the composition of the invention exhibits much greater effects on treating arthritis by absorption through skin, and thus is useful for the treatment of degenerative arthritis and rheumatoid arthritis.
    Type: Grant
    Filed: November 29, 2012
    Date of Patent: March 18, 2014
    Assignee: Livechem, Inc.
    Inventors: Haeng Woo Lee, Hyeon Cheol Shin, Seoung Ho Kim, Yong Ju Park
  • Publication number: 20110091532
    Abstract: Disclosed is a composition for treating arthritis containing a dibenzo-p-dioxin derivative as an active ingredient. This dibenzo-p-dioxin derivative is very effective in inhibiting NF-kB and AP-1 activity, alleviates the symptoms of degenerative arthritis and rheumatoid arthritis without irritating the skin or causing side effects, and can continue to exhibit improvement effects for a considerable period of time after discontinuation of treatment. Additionally, when the dibenzo-p-dioxin derivative is contained in liposomes, the composition of the invention exhibits much greater effects on treating arthritis by absorption through skin, and thus is useful for the treatment of degenerative arthritis and rheumatoid arthritis.
    Type: Application
    Filed: April 17, 2009
    Publication date: April 21, 2011
    Applicant: LIVECHEM, INC.
    Inventors: Haeng Woo Lee, Hyeon Cheol Shin, Seoung Ho Kim, Yong Ju Park
  • Patent number: 6696313
    Abstract: A method for aligning quantum dots effectively controls a growth position of the quantum dots for obviating an irregularity of a position of spontaneous formation quantum dots, and thus aligns the quantum dots in one-dimension (1-D) or two-dimension (2-D). A semiconductor device fabricated using the method manufactures a superlattice layer layer for adjusting an internal strain distribution by alternately depositing two semiconductor materials having different lattice constant, and grows spontaneous formation quantum dots on the superlattice layer. As a result, a strained force caused by the superlattice layer influences on the quantum dots so that the quantum dots can be regularly aligned.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: February 24, 2004
    Assignee: Korea Institute of Science and Technology
    Inventors: Yong Ju Park, Eun Kyu Kim, Kwang Moo Kim
  • Patent number: 6683013
    Abstract: Disclosed is a method of forming a quantum dots array. In the method of the present invention, a structure of wire-like quantum dots with good quality is formed in materials having an inconsistency in the lattice constant on a tilted substrate by using the binding property of atomic bonding due to chemical bonding steps of the tilted substrate, and the spacing of the wire-like quantum dots is varied by using the step width of the tilted substrate which is transformed due to a partial pressure of a source gas and the thickness of a buffer layer. The invention allows materials having an inconsistency in the lattice constant to be freely formed in the form of quantum wires with a growing technique only and accordingly to be used as base materials in use for manufacture of novel concept of optoelectronic devices which have not been obtained so far.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: January 27, 2004
    Assignee: Korea Institute of Science and Technology
    Inventors: Eun Kyu Kim, Yong Ju Park, Hyo Jin Kim, Tae Whan Kim
  • Publication number: 20020168835
    Abstract: Disclosed is a method of forming a quantum dots array. In the method of the present invention, a structure of wire-like quantum dots with good quality is formed in materials having an inconsistency in the lattice constant on a tilted substrate by using the binding property of atomic bonding due to chemical bonding steps of the tilted substrate, and the spacing of the wire-like quantum dots is varied by using the step width of the tilted substrate which is transformed due to a partial pressure of a source gas and the thickness of a buffer layer. The invention allows materials having an inconsistency in the lattice constant to be freely formed in the form of quantum wires with a growing technique only and accordingly to be used as base materials in use for manufacture of novel concept of optoelectronic devices which have not been obtained so far.
    Type: Application
    Filed: March 19, 2002
    Publication date: November 14, 2002
    Applicant: KOREA INSTITUTE OF SCIENCE OF TECHNOLOGY
    Inventors: Eun Kyu Kim, Yong Ju Park, Hyo Jin Kim, Tae Whan Kim
  • Publication number: 20020031900
    Abstract: A method for aligning quantum dots effectively controls a growth position of the quantum dots for obviating an irregularity of a position of spontaneous formation quantum dots, and thus aligns the quantum dots in one-dimension (1-D) or two-dimension (2-D). A semiconductor device fabricated using the method manufactures a superlattice layer layer for adjusting an internal strain distribution by alternately depositing two semiconductor materials having different lattice constant, and grows spontaneous formation quantum dots on the superlattice layer. As a result, a strained force caused by the superlattice layer influences on the quantum dots so that the quantum dots can be regularly aligned.
    Type: Application
    Filed: September 7, 2001
    Publication date: March 14, 2002
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Yong Ju Park, Eun Kyu Kim, Kwang Moo Kim