Patents by Inventor Gyeng-Chul Kim

Gyeng-Chul Kim 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).

  • Power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in resonant frequency
    Patent number: 10483799
    Abstract: The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: November 19, 2019
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ho Cho, Joung Ho Kim, Yang Bae Chun, Eun-Jung Kim, Ji-Yun Ryu, Mi-Joo Kim, Il-Song Han, Seung-Young Ahn, Gyeng-Chul Kim, Gu Ho Jeong
  • Power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in resonant frequency
    Patent number: 10476303
    Abstract: The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: November 12, 2019
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ho Cho, Joung Ho Kim, Yang Bae Chun, Eun-Jung Kim, Ji-Yun Ryu, Mi-Joo Kim, Ii-Song Han, Seung-Young Ahn, Gyeng-Chul Kim, Gu Ho Jeong
  • POWER SUPPLY AND PICKUP SYSTEM CAPABLE OF MAINTAINING STABILITY OF TRANSMISSION EFFICIENCY DESPITE CHANGES IN RESONANT FREQUENCY
    Publication number: 20190267839
    Abstract: The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
    Type: Application
    Filed: January 15, 2019
    Publication date: August 29, 2019
    Inventors: Dong Ho Cho, Joung Ho Kim, Yang Bae Chun, Eun-Jung Kim, Ji-Yun Ryu, Mi-Joo Kim, II-Song Han, Seung-Young Ahn, Gyeng-Chul Kim, Gu Ho Jeong
  • POWER SUPPLY AND PICKUP SYSTEM CAPABLE OF MAINTAINING STABILITY OF TRANSMISSION EFFICIENCY DESPITE CHANGES IN RESONANT FREQUENCY
    Publication number: 20190207421
    Abstract: The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 4, 2019
    Inventors: Dong Ho Cho, Joung Ho Kim, Yang Bae Chun, Eun-Jung Kim, Ji-Yun Ryu, Mi-Joo Kim, II-Song Han, Seung-Young Ahn, Gyeng-Chul Kim, Gu Ho Jeong
  • Power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in resonant frequency
    Patent number: 10230268
    Abstract: The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
    Type: Grant
    Filed: September 25, 2012
    Date of Patent: March 12, 2019
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Dong Ho Cho, Joung Ho Kim, Yang Bae Chun, Eun-Jung Kim, Ji-Yun Ryu, Mi-Joo Kim, Il-Song Han, Seung-Young Ahn, Gyeng-Chul Kim, Gu Ho Jeong
  • POWER SUPPLY AND PICKUP SYSTEM CAPABLE OF MAINTAINING STABILITY OF TRANSMISSION EFFICIENCY DESPITE CHANGES IN RESONANT FREQUENCY
    Publication number: 20140319927
    Abstract: The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.
    Type: Application
    Filed: September 25, 2012
    Publication date: October 30, 2014
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Dong Ho Cho, Joung Ho Kim, Yang Bae Chun, Eun-Jung Kim, Ji-Yun Ryu, Mi-Joo Kim, Il-Song Han, Seung-Young Ahn, Gyeng-Chul Kim, Gu Jeong