Patents by Inventor Kyung Hoon Jo

Kyung Hoon Jo 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: 20200321845
    Abstract: A vibration generating apparatus includes a bracket coupled to a rectangular case to form an inner space, a stator including a circuit board coupled to an upper surface of the bracket and a coil connected to the circuit board, a vibrator including a permanent magnet arranged on an exterior of the coil and a weighted body coupled to an outer circumferential surface of the permanent magnet, and an elastic member connecting the stator and the vibrator and elastically supporting the vibrator. The weighted body is polyhedral, and the vibrator moves up-and-down.
    Type: Application
    Filed: August 4, 2017
    Publication date: October 8, 2020
    Applicant: JAHWA ELECTRONICS CO., LTD.
    Inventors: Nam Jin CHOI, Kyung Hoon JO, Soon Koo SHIM, Young Bin CHONG, Chun CHOI, Won Gook LEE, Min Goo LEE
  • Patent number: 10389219
    Abstract: A vibration actuator includes a bracket coupled to a case to form an inner space; a stator having a circuit board coupled to an upper surface of the bracket, a coil connected to the circuit board, and a yoke provided in the coil; a vibrator having a permanent magnet disposed at an outer side of the coil and a weight coupled to an outer circumference of the permanent magnet; an elastic member configured to connect the stator and the vibrator and elastically support the vibrator; and a non-magnetic damper provided between the weight and the elastic member.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: August 20, 2019
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Nam Jin Choi, Kyung Hoon Jo, Soon Koo Shim, Young Bin Chong, Won Gook Lee, Min Goo Lee
  • Patent number: 9913364
    Abstract: A printed circuit board includes a pad to receive an electric signal from a controller, a plurality of signal lines connected to the pad to transmit the electric signal received at the pad, and a signal transmission unit connected to the signal lines to transmit the electric signal to a coil. The plurality of signal lines are configured to face each other in at least a partial region and/or disposed in a zigzag form in at least a partial region. If the printed circuit board and a vibration actuator including the printed circuit board are used, it is possible to change a high frequency interference region according to a pattern by changing a pattern of the printed circuit board, and to improve receiving efficiency of an antenna by reducing high frequency noise.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: March 6, 2018
    Assignee: JAHWA ELECTRONICS CO., LTD.
    Inventors: Chun Choi, Soon Koo Shim, Young Bin Chong, Nam Jin Choi, Won Gook Lee, Min Goo Lee, Kyung Hoon Jo
  • Publication number: 20180042102
    Abstract: A printed circuit board includes a pad to receive an electric signal from a controller, a plurality of signal lines connected to the pad to transmit the electric signal received at the pad, and a signal transmission unit connected to the signal lines to transmit the electric signal to a coil. The plurality of signal lines are configured to face each other in at least a partial region and/or disposed in a zigzag form in at least a partial region. If the printed circuit board and a vibration actuator including the printed circuit board are used, it is possible to change a high frequency interference region according to a pattern by changing a pattern of the printed circuit board, and to improve receiving efficiency of an antenna by reducing high frequency noise.
    Type: Application
    Filed: March 17, 2017
    Publication date: February 8, 2018
    Inventors: Chun CHOI, Soon Koo SHIM, Young Bin CHONG, Nam Jin CHOI, Won Gook LEE, Min Goo LEE, Kyung Hoon JO
  • Publication number: 20180006542
    Abstract: A vibration actuator includes a bracket coupled to a case to form an inner space; a stator having a circuit board coupled to an upper surface of the bracket, a coil connected to the circuit board, and a yoke provided in the coil; a vibrator having a permanent magnet disposed at an outer side of the coil and a weight coupled to an outer circumference of the permanent magnet; an elastic member configured to connect the stator and the vibrator and elastically support the vibrator; and a non-magnetic damper provided between the weight and the elastic member.
    Type: Application
    Filed: October 26, 2016
    Publication date: January 4, 2018
    Inventors: NAM JIN CHOI, KYUNG HOON JO, SOON KOO SHIM, YOUNG BIN CHONG, WON GOOK LEE, MIN GOO LEE
  • Patent number: 9742254
    Abstract: Disclosed is an apparatus for generating linear vibration with a damper, which includes a housing having an inner space formed therein, a fixed body provided in the inner space and having a coil, a vibrating body having a magnet and a weight coaxially disposed with the coil and configured to move in a vertical direction on the basis of the fixed body, an elastic body configured to elastically support the vibrating body, a viscous fluid provided at an upper surface of the magnet and having viscosity, and a damper installed in the housing to face an upper surface of the vibrating body and configured to make a surface contact with the viscous fluid when the vibrating body moves upwards, the damper having a shape not making a surface contact with the entire viscous fluid simultaneously.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: August 22, 2017
    Assignee: JAHWA electronics Co., Ltd.
    Inventors: Nam Jin Choi, Kyung Hoon Jo, Soon Koo Shim, Young Bin Chong, Won Gook Lee, Min Goo Lee