Patents by Inventor Hyung Yeon LIM

Hyung Yeon LIM 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: 20220206404
    Abstract: The present invention provides an external additive for toner, selected from the group consisting of tin oxide fine particles, complex tin oxide fine particles, and a mixture of the same fine particles, wherein the fine particles are (?) charged fine particles having an energy band gap of 3.2 to 3.6 eV, an electronegativity value (?) of 15 to 18, and a Blow-Off charge amount (uC/g) of ?100 to ?150. The external additive for toner of the present invention can: replace nano-sized titanium dioxide which has been conventionally used as an external additive for toner; guarantee general consumers using image devices as well as workers in the image industry safety from the harmful influences that may be generated upon exposure to the nano-sized titanium dioxide detached from the surface of a toner in use; and be safe for the human body.
    Type: Application
    Filed: April 16, 2020
    Publication date: June 30, 2022
    Applicant: SUKGYUNG AT CO., LTD.
    Inventors: Hyung Jun LIM, Young Chul YOU, O Sung KWON, Jin Seop KIM, Sang Gon KIM, Eun Young SONG, So Yeon LEE, Yong Gu YOO, Hyeon Seok CHOI
  • Publication number: 20110191707
    Abstract: A user interface using a hologram includes a memory unit to store information on a shape, a function, a position, and a movement pattern for a virtual object; a hologram output unit to project a hologram display area and to display the virtual object in the projected hologram display area; a real object sensing unit to sense a real object in the hologram display area and to generate information on a position and a movement pattern of the real object; a contact recognizing unit to determine the positions and the movement patterns of the respective virtual object and the real object to recognize a contact between the virtual object and the real object; and a control unit to determine whether the recognized contact between the virtual object and the real object corresponds to an input for selecting the virtual object.
    Type: Application
    Filed: August 23, 2010
    Publication date: August 4, 2011
    Applicant: PANTECH CO., LTD.
    Inventors: Han Gweon LEE, Ki Jung KIM, Eung Bong KIM, Soo Been AHN, Gi Seop WON, Hyun Keun LIM, Hyung Yeon LIM, Chan Sung JUNG, Eui Seok HAN