Patents by Inventor Wan Ho Oh

Wan Ho Oh 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).

  • Patent number: 9135840
    Abstract: The present invention relates to a multi-sectioned, billboard-mounted light-emitting device comprising: a mounting frame onto which one or a plurality of partition pieces are joined by being slotted in a detachable fashion, and on the front of which are formed a plurality of billboard housing space parts; a light-emitting-diode module in which a plurality of LEDs are provided at predetermined intervals; a light-guide plate which surface emits due to the LEDs; a back-surface plate devised such that the light generated from the light-guide plate is emitted towards the front surface; and a billboard plate which is provided on the front surface of the light-guide plate while being received in a detachable fashion at a size matched to each of the billboard housing space parts which are section bared by means of the partition pieces.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: September 15, 2015
    Inventor: Wan Ho Oh
  • Patent number: 8992065
    Abstract: Disclosed is a detachable light emitting device. The device comprises a body casing in which a front frame is mounted on the front thereof, and at least one of a plurality of detachable parts that are installed on an upper side or a lower side of the body casing; radiation stands are vertically disposed on both left and right sides inside the body casing, and front cutting grooves; light guide plate stands are vertically inserted and coupled in the front cutting grooves of each of the radiation stands, respectively, and side mounting grooves are formed on each one side thereof. LED module mounting stands are vertically inserted and coupled in the side mounting grooves of each of the light guide plate stands, respectively, and LED mounting grooves are vertically formed on each one side thereof.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: March 31, 2015
    Inventor: Wan Ho Oh
  • Publication number: 20130083559
    Abstract: The present invention relates to a detachable light emitting device using light emitting diode modules, and the detachable light emitting device comprises: a body casing, in which a front frame is mounted on the front thereof, and in which one or a plurality of detachable parts is or are installed on an upper side or a lower side of the body casing; radiation stands which are vertically erected on both left and right sides inside the body casing, and have front cutting grooves; light guide plate stands which are vertically inserted and coupled in the front cutting grooves of each of the radiation stands, respectively, and in which side mounting grooves are formed on each one side thereof; LED module mounting stands which are vertically inserted and coupled in the side mounting grooves of each of the light guide plate stands, respectively, and in which LED mounting grooves are vertically formed on each one side thereof; LED modules, in which printed circuit boards having a plurality of LEDs thereon are vertica
    Type: Application
    Filed: June 15, 2011
    Publication date: April 4, 2013
    Inventor: Wan Ho Oh
  • Publication number: 20130063970
    Abstract: The present invention relates to a multi-sectioned, billboard-mounted light-emitting device comprising: a mounting frame onto which one or a plurality of partition pieces are joined by being slotted in a detachable fashion, and on the front of which are formed a plurality of billboard housing space parts; a light-emitting-diode module in which a plurality of LEDs are provided at predetermined intervals; a light-guide plate which surface emits due to the LEDs; a back-surface plate devised such that the light generated from the light-guide plate is emitted towards the front surface; and a billboard plate which is provided on the front surface of the light-guide plate while being received in a detachable fashion at a size matched to each of the billboard housing space parts which are section bared by means of the partition pieces.
    Type: Application
    Filed: May 12, 2011
    Publication date: March 14, 2013
    Inventor: Wan Ho Oh