Patents by Inventor Ki Hyun Kwon

Ki Hyun Kwon 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).

  • Publication number: 20250074217
    Abstract: The present disclosure provides a low-voltage battery unit of a fuel cell electric vehicle (FCEV) type commercial special purpose vehicle. The low-voltage battery unit features a dualized structure by using a 12V LDC and adopting a battery exclusively providing DC12V, instead of using a low-voltage DC-DC converter (LDC) for 24V and a battery equalizer (BEQ) to supply 24V and 12V in the low-voltage battery unit.
    Type: Application
    Filed: August 20, 2024
    Publication date: March 6, 2025
    Inventors: Jae Yong Lee, Seung Deuk Bae, Yun Jae Jo, Ki Hyun Kwon
  • Publication number: 20230389358
    Abstract: A display apparatus can include a first thin-film transistor including a first active layer having a first polysilicon material, a first gate electrode overlapping the first active layer, a first electrode and a second electrode; a second thin-film transistor including a second active layer having an oxide semiconductor, a second gate electrode overlapping the second active layer, a third electrode and a fourth electrode; and a first emitting electrode of a light emitting element electrically connected to the second electrode of the first thin-film transistor. Also, one end of the first active layer having the first polysilicon material is electrically connected to one or the other end of the second active layer having the oxide semiconductor.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 30, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: Seong-Pil CHO, Dong-Yup KIM, Kyung-Mo SON, Sang-Soon NOH, Jun-Seuk LEE, Yong-Bin KANG, Kye-Chul CHOI, Sung-Ho MOON, Sang-Gul LEE, Byeong-Keun KIM, Kyoung-Soo LEE, Hyun-Gyo JEONG, Jin-Kyu ROH, Jung-Doo JIN, Ki-Hyun KWON, Hee-Jin JUNG, Jang-Dae KIM, Won-Ho SON, Chan-Ho KIM
  • Patent number: 11765935
    Abstract: A display apparatus including a first thin-film transistor, a second thin-film transistor and a third thin-film transistor is provided. The first thin-film transistor includes a first active layer composed of a polysilicon material, a first gate electrode overlapping the first active layer such that a first gate insulating layer is interposed therebetween, a first source electrode and a first drain electrode. The first gate electrode includes n layers. The first source electrode and the first drain electrode are connected to the first active layer. The second thin-film transistor includes a second active layer composed of a polysilicon material, a second gate electrode overlapping the second active layer such that a first gate insulating layer is interposed therebetween, a second source electrode and a second drain electrode. The second gate electrode includes n+1 layers. The second source electrode and the second drain electrode are connected to the second active layer.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: September 19, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Seong-Pil Cho, Dong-Yup Kim, Kyung-Mo Son, Sang-Soon Noh, Jun-Seuk Lee, Yong-Bin Kang, Kye-Chul Choi, Sung-Ho Moon, Sang-Gul Lee, Byeong-Keun Kim, Kyoung-Soo Lee, Hyun-Gyo Jeong, Jin-Kyu Roh, Jung-Doo Jin, Ki-Hyun Kwon, Hee-Jin Jung, Jang-Dae Kim, Won-Ho Son, Chan-Ho Kim
  • Publication number: 20210005693
    Abstract: A display apparatus including a first thin-film transistor, a second thin-film transistor and a third thin-film transistor is provided. The first thin-film transistor includes a first active layer composed of a polysilicon material, a first gate electrode overlapping the first active layer such that a first gate insulating layer is interposed therebetween, a first source electrode and a first drain electrode. The first gate electrode includes n layers. The first source electrode and the first drain electrode are connected to the first active layer. The second thin-film transistor includes a second active layer composed of a polysilicon material, a second gate electrode overlapping the second active layer such that a first gate insulating layer is interposed therebetween, a second source electrode and a second drain electrode. The second gate electrode includes n+1 layers. The second source electrode and the second drain electrode are connected to the second active layer.
    Type: Application
    Filed: July 6, 2020
    Publication date: January 7, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Seong-Pil CHO, Dong-Yup KIM, Kyung-Mo SON, Sang-Soon NOH, Jun-Seuk LEE, Yong-Bin KANG, Kye-Chul CHOI, Sung-Ho MOON, Sang-Gul LEE, Byeong-Keun KIM, Kyoung-Soo LEE, Hyun-Gyo JEONG, Jin-Kyu ROH, Jung-Doo JIN, Ki-Hyun KWON, Hee-Jin JUNG, Jang-Dae KIM, Won-Ho SON, Chan-Ho KIM
  • Patent number: 9810301
    Abstract: Disclosed is a torque converter in a vehicle, in which a torsional damper reduces a natural frequency and absorbs vibration energy in an anti-resonance state for enhancing a vibration isolation function. The torque converter in a vehicle includes a torsional damper including a retaining plate coupled to the piston, a plurality of springs arranged at the retaining plate for imparting elastic force in a circumferential direction, a driven plate coupled to a spline hub which acts as a reaction force on the springs and forwards driving power to a transmission, and an inertial lever arranged between the piston and the driven plate, the inertial lever including a fixed pivot coupling portion coupled to the piston with a fixed pivot and a movable pivot coupling portion coupled to the driven plate with a movable pivot.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: November 7, 2017
    Assignee: Korea Powertrain Co., Ltd.
    Inventors: Ki-Hyun Kwon, Gi-Woo Kim, Soon-Seok Hong
  • Patent number: 9518749
    Abstract: Provided is a forced evaporative humidifier using nano-vapor, which includes: a housing having an exhaust port formed in an upper surface thereof and a suction port formed at one side of a front surface thereof; a water tank located below the suction port to store water; an injection unit having an injection nozzle located above the suction port, a pump for pulling up the water in the water tank to the injection nozzle, and a transfer tube for transferring the water pulled by the pump; a blowing fan located above the injection nozzle to carry air toward the exhaust port of the housing; a humidifying unit located below the injection nozzle so that films, each having a body surface formed to allow the water injected from the injection nozzle to flow and a plurality of tube-type spacers protruding on the body surface, are stacked in a lateral direction therein; and an eliminator located between the blowing fan and the injection nozzle to prevent water drops included in a humid air humidified by the humidifying u
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: December 13, 2016
    Assignee: KOREA FOOD RESEARCH INSTITUTE
    Inventors: Byeong Sam Kim, Ji Young Kim, Jong Hoon Kim, Ki Hyun Kwon, Hwan Soo Cha
  • Patent number: 9288609
    Abstract: A method for connecting with an external device and an electronic device thereof are provided. The method includes determining whether an input for increasing a volume is received is determined while the volume of the electronic device is at a maximum value. If the input for increasing the volume is received, an external device is detected, the electronic device connects with the external device, and the external device outputs an output associated with a current function of the electronic device.
    Type: Grant
    Filed: April 3, 2014
    Date of Patent: March 15, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Hyun Kwon, Myung-Geun Koh
  • Publication number: 20150260270
    Abstract: Disclosed is a torque converter in a vehicle, in which a torsional damper reduces a natural frequency and absorbs vibration energy in an anti-resonance state for enhancing a vibration isolation function. The torque converter in a vehicle includes a torsional damper including a retaining plate coupled to the piston, a plurality of springs arranged at the retaining plate for imparting elastic force in a circumferential direction, a driven plate coupled to a spline hub which acts as a reaction force on the springs and forwards driving power to a transmission, and an inertial lever arranged between the piston and the driven plate, the inertial lever including a fixed pivot coupling portion coupled to the piston with a fixed pivot and a movable pivot coupling portion coupled to the driven plate with a movable pivot.
    Type: Application
    Filed: April 9, 2013
    Publication date: September 17, 2015
    Inventors: Ki-Hyun Kwon, Gi-Woo Kim, Soon-Seok Hong
  • Patent number: 9087333
    Abstract: Disclosed is a method of monitoring food quality including (a) receiving an environmental factor value sensed during transporting by a moving sensor tag attached to a container or palette on which a plurality of food is stacked, a time value sensing the environmental factor, and food information from a distribution company server; (b) receiving an environmental factor value sensed by a fixed sale sensor tag which matches the food information stored in the moving sensor tag, a time value sensing the environmental factor, and food information from the distribution company server; (c) measuring a current quality index for each individual quality analysis item and a total quality index based on the food information sensed by the moving sensor tag and the fixed sale sensor tag, the environmental factor values, and the time values sensing the environmental factors; (d) setting price of the food based on the measured quality index for each individual quality analysis item and total quality index; and (e) transmittin
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: July 21, 2015
    Assignee: Korea Food Research Institute
    Inventors: Byeong Sam Kim, Ji Young Kim, Jong Hoon Kim, Ouiwoung Kim, Ki Hyun Kwon, Yong Kon Park, Yoon Sook Kim, Junemo Koo
  • Patent number: 9016564
    Abstract: A product quality monitoring system includes: an RFID tag which is attached to a first packing container in which a product is packed, and transmits atmospheric history information and an identifier for a product distribution history; a QR code which is attached to a second packing container and stores the identifier and address information of a product quality predicting server; a product distribution history DB which stores the atmospheric history information and the identifier which are received from the RFID tag; a user terminal which connects with the product quality predicting server corresponding to the address information stored in the captured QR code, and requests a quality index of the product; and the product quality predicting server which calculates the quality index of the product or a time when the product has a specific quality index, from the atmospheric history information.
    Type: Grant
    Filed: October 2, 2012
    Date of Patent: April 28, 2015
    Assignee: Korea Food Research Institute
    Inventors: Byeong Sam Kim, Ji Young Kim, Jong Hoon Kim, Ouiwoung Kim, Ki Hyun Kwon, Yoon Sook Kim, Hwan Soo Cha
  • Publication number: 20150068962
    Abstract: Provided is a forced evaporative humidifier using nano-vapor, which includes: a housing having an exhaust port formed in an upper surface thereof and a suction port formed at one side of a front surface thereof; a water tank located below the suction port to store water; an injection unit having an injection nozzle located above the suction port, a pump for pulling up the water in the water tank to the injection nozzle, and a transfer tube for transferring the water pulled by the pump; a blowing fan located above the injection nozzle to carry air toward the exhaust port of the housing; a humidifying unit located below the injection nozzle so that films, each having a body surface formed to allow the water injected from the injection nozzle to flow and a plurality of tube-type spacers protruding on the body surface, are stacked in a lateral direction therein; and an eliminator located between the blowing fan and the injection nozzle to prevent water drops included in a humid air humidified by the humidifying u
    Type: Application
    Filed: September 13, 2012
    Publication date: March 12, 2015
    Applicant: Korea Food Research Institute
    Inventors: Byeong Sam Kim, Ji Young Kim, Jong Hoon Kim, Ki Hyun Kwon, Hwan Soo Cha
  • Publication number: 20140302799
    Abstract: A method for connecting with an external device and an electronic device thereof are provided. The method includes determining whether an input for increasing a volume is received is determined while the volume of the electronic device is at a maximum value. If the input for increasing the volume is received, an external device is detected, the electronic device connects with the external device, and the external device outputs an output associated with a current function of the electronic device.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ki-Hyun KWON, Myung-Geun KOH
  • Publication number: 20140252085
    Abstract: A product quality monitoring system includes: an RFID tag which is attached to a first packing container in which a product is packed, and transmits atmospheric history information and an identifier for a product distribution history; a QR code which is attached to a second packing container and stores the identifier and address information of a product quality predicting server; a product distribution history DB which stores the atmospheric history information and the identifier which are received from the RFID tag; a user terminal which connects with the product quality predicting server corresponding to the address information stored in the captured QR code, and requests a quality index of the product; and the product quality predicting server which calculates the quality index of the product or a time when the product has a specific quality index, from the atmospheric history information.
    Type: Application
    Filed: October 2, 2012
    Publication date: September 11, 2014
    Applicant: KOREA FOOD RESEARCH INSTITUTE
    Inventors: Byeong Sam Kim, Ji Young Kim, Jong Hoon Kim, Ouiwoung Kim, Ki Hyun Kwon, Yoon Sook Kim, Hwan Soo Cha
  • Publication number: 20130312907
    Abstract: A substrate-bonding apparatus for a display device, and which includes a chamber unit configured to bond a carrier substrate to a substrate for manufacturing the display device; a first surface plate provided inside the chamber unit and configured to support the substrate; a supporting unit provided inside the chamber unit and configured bring the carrier substrate into contact with the substrate supported by the first surface plate; and a pressure-adjusting unit communicating with the chamber unit and configured to change a vacuum pressure from a low vacuum pressure to a high pressure in multiple steps inside the chamber unit while the carrier substrate is brought into contact with the substrate to bond the carrier substrate to the substrate without adhesive material between the carrier substrate and the substrate.
    Type: Application
    Filed: November 19, 2012
    Publication date: November 28, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Jae Young OH, Dae Hoon LEE, Jae Duk JO, Jae Won LEE, Young Kwang PARK, Ki Hyun KWON
  • Publication number: 20130214938
    Abstract: Disclosed is a method of monitoring food quality including (a) receiving an environmental factor value sensed during transporting by a moving sensor tag attached to a container or palette on which a plurality of food is stacked, a time value sensing the environmental factor, and food information from a distribution company server; (b) receiving an environmental factor value sensed by a fixed sale sensor tag which matches the food information stored in the moving sensor tag, a time value sensing the environmental factor, and food information from the distribution company server; (c) measuring a current quality index for each individual quality analysis item and a total quality index based on the food information sensed by the moving sensor tag and the fixed sale sensor tag, the environmental factor values, and the time values sensing the environmental factors; (d) setting price of the food based on the measured quality index for each individual quality analysis item and total quality index; and (e) transmittin
    Type: Application
    Filed: October 6, 2011
    Publication date: August 22, 2013
    Applicant: KOREA FOOD INSTITUTE
    Inventors: Byeong Sam Kim, Ji Young Kim, Jong Hoon Kim, Ouiwoung Kim, Ki Hyun Kwon, Yong Kon Park, Yoon Sook Kim, Junemo Koo