Patents by Inventor Bong-Jun Yang

Bong-Jun Yang 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).

  • Polycyclic aromatic compounds and organic electroluminescent devices using the same
    Patent number: 11985891
    Abstract: Disclosed are polycyclic aromatic compounds that can be employed in various organic layers of organic electroluminescent devices. Also disclosed are organic electroluminescent devices including the polycyclic aromatic compounds. The organic electroluminescent devices are highly efficient and long lasting and have greatly improved luminous efficiency.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: May 14, 2024
    Assignee: SFC Co., Ltd.
    Inventors: SungHoon Joo, Ji-Hwan Kim, Byung-sun Yang, Hyeon Jun Jo, Sungeun Choi, Su-jin Kim, Bong-Ki Shin
  • POLYCYCLIC COMPOUND AND ORGANOELECTRO LUMINESCENT DEVICE USING SAME
    Publication number: 20240122070
    Abstract: The present invention relates to a novel polycyclic compound employed in an organic layer of an organoelectro luminescent device, wherein the organoelectro luminescent device employing the compound according to the present invention has remarkably improved luminous efficiency and a long lifespan. According to the present invention, it is possible to implement a highly efficient and long-life organoelectro luminescent device that can be effectively applied to various display devices.
    Type: Application
    Filed: October 12, 2020
    Publication date: April 11, 2024
    Applicant: SFC CO., LTD
    Inventors: Bong-ki SHIN, Sung-hoon JOO, Byung-sun YANG, Ji-hwan KIM, Hyeon-jun JO, Sung-eun CHOI
  • Adaptive output feedback apparatuses and methods capable of controlling a non-minimum phase system
    Patent number: 7853338
    Abstract: The invention comprises apparatuses and methods for providing the capability to stabilize and control a non-minimum phase, nonlinear plant with unmodeled dynamics and/or parametric uncertainty through the use of adaptive output feedback. A disclosed apparatus can comprise a reference model unit for generating a reference model output signal ym The apparatus can comprise a combining unit that combines and differences a plant output signal y of a non-minimum phase plant for which not all of the states can be sensed, and a plant output signal y, to generate an output error signal {tilde over (y)}. The apparatus can further comprise an adaptive control unit for generating an adaptive control signal uad used to control the plant.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: December 14, 2010
    Assignee: Georgia Tech Research Corporation
    Inventors: Naira Hovakimyan, Anthony J Calise, Bong-Jun Yang
  • Adaptive output feedback apparatuses and methods capable of controlling a non-minimum phase system
    Patent number: 7277764
    Abstract: The invention comprises apparatuses and methods for providing the capability to stabilize and control a non-minimum phase, nonlinear plant with unmodeled dynamics and/or parametric uncertainty through the use of adaptive output feedback. A disclosed apparatus can comprise a reference model unit for generating a reference model output signal ym. The apparatus can comprise a combining unit that combines and differences a plant output signal y of a non-minimum phase plant for which not all of the states can be sensed, and a plant output signal y, to generate an output error signal {tilde over (y)}. The apparatus can further comprise an adaptive control unit for generating an adaptive control signal uad used to control the plant.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: October 2, 2007
    Assignee: Georgia Tech Research Corporation
    Inventors: Naira Hovakimyan, C. Anthony Calise, Bong-Jun Yang
  • Adaptive output feedback apparatuses and methods capable of controlling a non-minimum phase system
    Publication number: 20040176860
    Abstract: The invention comprises apparatuses and methods for providing the capability to stabilize and control a non-minimum phase, nonlinear plant with unmodeled dynamics and/or parametric uncertainty through the use of adaptive output feedback. A disclosed apparatus can comprise a reference model unit for generating a reference model output signal ym. The apparatus can comprise a combining unit that combines and differences a plant output signal y of a non-minimum phase plant for which not all of the states can be sensed, and a plant output signal y, to generate an output error signal {tilde over (y)}. The apparatus can further comprise an adaptive control unit for generating an adaptive control signal uad used to control the plant.
    Type: Application
    Filed: December 9, 2003
    Publication date: September 9, 2004
    Applicant: Guided Systems Technologies, Inc.
    Inventors: Naira Hovakimyan, C. Anthony Calise, Bong-Jun Yang