Patents by Inventor Kyeong-Hyeon Lee

Kyeong-Hyeon 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).

  • Publication number: 20240155938
    Abstract: An organic light-emitting device according to the present invention uses a pyrene derivative compound having a characteristic structure as a host in a light-emitting layer to realize a long-lifespan and high-efficiency organic light-emitting device having excellent light-emitting characteristics in terms of lifespan and luminescence efficiency. Accordingly, the organic light-emitting device can be usefully applied, in the industrial aspect, for various display devices such as flat panel, flexible, and wearable displays, as well as lighting devices.
    Type: Application
    Filed: February 15, 2022
    Publication date: May 9, 2024
    Inventors: Se-jin LEE, Si-in KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Publication number: 20240147854
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by any one of [Chemical Formula A], wherein [Chemical Formula A] is as defined in the description.
    Type: Application
    Filed: March 19, 2021
    Publication date: May 2, 2024
    Inventors: Yeong-Tae CHOI, Se-Jin Lee, Ji-Yung KIM, Kyungtae KIM, Myeong-Jun Kim, Kyeong-Hyeon Kim
  • Publication number: 20240090318
    Abstract: The present invention relates to a novel heterocyclic compound usable in an organic light-emitting device and to an organic light-emitting device comprising same, wherein [chemical formula A] is as described in the detailed description of the invention.
    Type: Application
    Filed: December 28, 2021
    Publication date: March 14, 2024
    Inventors: Se-Jin LEE, Seok-Bae PARK, Si-In KIM, Hee-Dae KIM, Yeong-Tae CHOI, Ji-Yung KIM, Kyung-Tae KIM, Myeong-Jun KIM, Kyeong-hyeon KIM, Seung-soo LEE, Tae Gyun LEE, Joon-Ho KIM
  • Patent number: 11925110
    Abstract: Disclosed is a polycyclic aromatic compound that can be employed in an organic layer of an organic electroluminescent device. Also disclosed is a highly efficient organic electroluminescent device including the polycyclic aromatic compound. The use of the polycyclic aromatic compound significantly improves the luminous efficiency of the device.
    Type: Grant
    Filed: March 19, 2021
    Date of Patent: March 5, 2024
    Assignee: SFC CO., LTD.
    Inventors: Kyeong-hyeon Kim, Se-jin Lee, Yeong-tae Choi, Ji-yung Kim, Kyung-tae Kim, Myeong-jun Kim
  • Patent number: 11491850
    Abstract: An air conditioner for a vehicle is provided and includes a dryer which is connected to an indoor air conditioner that adjusts the temperature and humidity within a vehicle. The air conditioner simultaneously dries a dry subject such as clothes, shoes or the like.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: November 8, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems, Doowon Climate Control Co., Ltd.
    Inventors: Hae Ryong Park, Yong Chul Kim, Kyeong Hyeon Lee, Hong Hee Jeong, Yong Heung Lee, Jung Hyun Kim, Byung Guk An, Woo Man Hwang
  • Publication number: 20200331325
    Abstract: An air conditioner for a vehicle is provided and includes a dryer which is connected to an indoor air conditioner that adjusts the temperature and humidity within a vehicle. The air conditioner simultaneously dries a dry subject such as clothes, shoes or the like.
    Type: Application
    Filed: November 6, 2019
    Publication date: October 22, 2020
    Inventors: Hae Ryong Park, Yong Chul Kim, Kyeong Hyeon Lee, Hong Hee Jeong, Yong Heung Lee, Jung Hyun Kim, Byung Guk An, Woo Man Hwang
  • Patent number: 10787058
    Abstract: An air conditioner for a vehicle including a case body having a floor outlet, a roof outlet, an evaporator, and a heater core; a mode door adjusting an opening amount of each of the vents; and a temp door adjusting an opening amount of a cold-air passage and a hot-air passage, includes: an actuator lever connected to an actuator provided in the case body, and a main lever connected to the actuator lever to simultaneously control the mode door and the temp door.
    Type: Grant
    Filed: January 3, 2018
    Date of Patent: September 29, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation, DOOWON CLIMATE CONTROL CO., LTD.
    Inventors: Kyeong-Hyeon Lee, Yong-Chul Kim, Jun-Sic Jung
  • Publication number: 20180290517
    Abstract: An air conditioner for a vehicle including a case body having a floor outlet, a roof outlet, an evaporator, and a heater core; a mode door adjusting an opening amount of each of the vents; and a temp door adjusting an opening amount of a cold-air passage and a hot-air passage, includes: an actuator lever connected to an actuator provided in the case body, and a main lever connected to the actuator lever to simultaneously control the mode door and the temp door.
    Type: Application
    Filed: January 3, 2018
    Publication date: October 11, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, DOOWON CLIMATE CONTROL CO., LTD
    Inventors: Kyeong-Hyeon Lee, Yong-Chul Kim, Jun-Sic Jung
  • Publication number: 20180272833
    Abstract: A vehicle HVAC system may include a housing, a blower disposed in the housing to blow air, an evaporator core disposed in the housing to cool the air having passed through the blower, a heater core disposed in the housing to increase a temperature of the air having passed through the evaporator core, a temperature door assembly including a pair of slidable temperature door plates to control the air having passed through the blower, and a mode door assembly including a slidable mode door plate to control a vent outlet and a floor outlet such that one thereof is closed, or to control air to be discharged through the vent outlet and the floor outlet.
    Type: Application
    Filed: December 29, 2017
    Publication date: September 27, 2018
    Applicants: Hyundai Motor Company, Kia Motors Corporation, Hanon Systems
    Inventors: Kyeong-Hyeon Lee, Yong-Chul Kim, Jun-Chul An
  • Patent number: 7987833
    Abstract: A combustion system for a vehicle may include a piston in which a first combustion recess is formed in an upper end surface thereof, and at least one second combustion recess is further formed at the bottom of the first combustion recess, a first intake port and a second intake port for supplying a cylinder with air, and a controller that differently controls amounts of recirculation exhaust gas being supplied to the first intake port and the second intake port.
    Type: Grant
    Filed: July 27, 2009
    Date of Patent: August 2, 2011
    Assignees: Hyundai Motor Company, SNU R&DB Foundation
    Inventors: Sung Hwan Cho, Jang Heon Kim, Kyoung-Doug Min, Yong-Taik Han, Seung-Mok Choi, Kyeong-Hyeon Lee
  • Publication number: 20100065017
    Abstract: A combustion system for a vehicle may include a piston in which a first combustion recess is formed in an upper end surface thereof, and at least one second combustion recess is further formed at the bottom of the first combustion recess, a first intake port and a second intake port for supplying a cylinder with air, and a controller that differently controls amounts of recirculation exhaust gas being supplied to the first intake port and the second intake port.
    Type: Application
    Filed: July 27, 2009
    Publication date: March 18, 2010
    Applicants: Hyundai Motor Company, SNU R & DB Foundation
    Inventors: Sung Hwan Cho, Jang Heon Kim, Kyoung-Doug Min, Yong-Taik Han, Seung-Mok Choi, Kyeong-Hyeon Lee