Patents by Inventor Hyun Gi Lee

Hyun Gi 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: 20240097580
    Abstract: An inverter driving apparatus includes an inverter having a plurality of legs respectively corresponding to each of a plurality of phases and the control unit generating space vector modulation signals based on a phase voltage command, each of the space vector modulation signals corresponding to each of the plurality of phases, respectively, determining whether an output voltage of the inverter corresponding to at least one space vector modulation signal of the space vector modulation is in a non-linear region by determining whether each voltage of the space vector modulation signals is included in a predetermined range, generating a terminal voltage command by determining whether or not to apply an offset voltage to each of the space vector modulation signals based on the determination of the non-linear region, and controlling a turn-on state of at least one switch included in each of the plurality of legs by modulating the terminal voltage command based on pulse width modulation.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 21, 2024
    Applicants: Hyundai Motor Company, Kia Corporation
    Inventors: Hyun Jae LIM, Yong Jae LEE, Young Ho CHAE, Young Kwan KO, Young Gi LEE
  • Publication number: 20240081124
    Abstract: A display device includes a via insulating layer on a substrate; a first electrode on the via insulating layer; a pixel defining layer including an inclined region on the first electrode and including a first opening exposing a portion of the first electrode, and a flat region at a side of the inclined region and in contact with the via insulating layer; a light emitting layer on the portion of the first electrode exposed by the first opening; organic particles on the flat region of the pixel defining layer; an encapsulation layer covering the pixel defining layer, the light emitting layer, and the organic particles, and including a first layer, a second layer, and a third layer; and a first light blocking layer on the third layer of the encapsulation layer to overlap the flat region of the pixel defining layer and form a second opening.
    Type: Application
    Filed: May 8, 2023
    Publication date: March 7, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Ho KIM, Dong Uk KIM, Hyoeng Ki KIM, Hyeon Bum LEE, Hoon Gi LEE, Chaun Gi CHOI
  • Patent number: 11778851
    Abstract: A light-emitting display device configured such that an area in which particles are generated is determined in an inspection process after formation of a light-emitting device and correspondingly a cover pattern is formed and a method of manufacturing the same. The particles are prevented from serving as a permeation path of impurities, whereby reliability of the light-emitting display device is improved.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: October 3, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Sang-Il Shin, Hyun-Gi Lee, Boo-Heung Lee
  • Publication number: 20210202904
    Abstract: A light-emitting display device configured such that an area in which particles are generated is determined in an inspection process after formation of a light-emitting device and correspondingly a cover pattern is formed and a method of manufacturing the same. The particles are prevented from serving as a permeation path of impurities, whereby reliability of the light-emitting display device is improved.
    Type: Application
    Filed: December 24, 2020
    Publication date: July 1, 2021
    Applicant: LG Display Co., Ltd.
    Inventors: Sang-Il SHIN, Hyun-Gi LEE, Boo-Heung LEE
  • Patent number: 5836218
    Abstract: A crankshaft for cooling pistons having oil passages which are respectively terminated at three weight balances have a couple of oil holes, so that the oil holes at the weight balances are equipped with oil jets and inject the oil toward each piston of the engine.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: November 17, 1998
    Assignee: Hyundai Motor Company, Ltd.
    Inventor: Hyun-Gi Lee
  • Patent number: 5402590
    Abstract: Children's shoes having a music box built in the front upper portion thereof for amusement especially of young children. The music box includes a melody speaker, a touch activated switch, a battery source, and a waterproof enclosure housing the speaker and the switch therewithin.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: April 4, 1995
    Inventor: Hyun Gi Lee