Patents Represented by Attorney Hyunho Park

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  • Rotary-type retractable writing implement with an anti-drying device
    Patent number: 8348536
    Abstract: A rotary-type retractable writing implement with an anti-drying device is provided. An upper shaft and a lower shaft are coupled together such that the two shafts are rotatable in opposite directions, and a cartridge accommodated in an intermediate connection member is movable, and an open/shut module for covering a nib opens/shuts by the movement of the cartridge so as to provide a nib-advancing path.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: January 8, 2013
    Assignee: Morris Corporation
    Inventor: Hyun-Son Yoon
  • Display method and device using photonic crystal characteristics
    Patent number: 8238022
    Abstract: A display method and device using photonic crystal characteristics are disclosed. In the display method using photonic crystal characteristics in accordance with the present invention, when a plurality of particles having electric charges are dispersed in a solvent, an electric field is applied to control inter-particle distance.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: August 7, 2012
    Assignee: Nanobrick Co., Ltd.
    Inventors: Jae Hyun Joo, In Sook Lee, Jin Ha Kal, Da Hyeon Go