Patents by Inventor Hong Chul LIM

Hong Chul LIM 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).

  • ELECTROCHEMICAL DEVICE COMPRISING CARBON QUANTUM DOT IONIC COMPOUND ELECTROLYTE
    Publication number: 20200144671
    Abstract: The present invention relates to an electrochemical device, more particularly to an electrochemical device including a first electrode, a second electrode spaced apart from the first electrode and an electrolyte filled between the first electrode and the second electrode, wherein the electrolyte comprises a salt form of a carbon quantum dot anion and a metal cation having an average diameter in the range of 2 to 12 nanometers (nm) and a surface potential of ?20 mV or less, the present invention provides an electrochemical device dramatically improving reliability, performance and durability by adopting an carbon quantum dot ion compound electrolyte having selective ion conductivity with a specific cation and suppressing side reactions caused by electrolyte as well as applicable in liquid, gel or solid phase.
    Type: Application
    Filed: May 24, 2018
    Publication date: May 7, 2020
    Inventor: Hong Chul LIM
  • ELECTROLYTE FOR ELECTROCHEMICAL DEVICE AND PREPARATION METHOD THEREFOR
    Publication number: 20200091557
    Abstract: Disclosed are an electrolyte for an electrochemical device and preparation method thereof. The electrolyte can include a first electrode, a second electrode spaced apart from the first electrode and is filled between the first electrode and the second electrode, wherein the electrolyte further includes a salt form of a carbon quantum dot anion and a metal cation having an average diameter in the range of 2 to 12 nanometers (nm) and a surface potential of ?20 mV or less, and the electrolyte has a very small dissociation energy of anion and cation, and thus improves ionic conductivity. And due to large ion polarization, and high anionic thermochemical/electrochemical stability of the electrolyte, no side reactions occur during device driving and it is possible to build an electrochemical device with greatly improved stability and reliability.
    Type: Application
    Filed: May 24, 2018
    Publication date: March 19, 2020
    Inventor: Hong Chul LIM
  • High efficiency light emitting diode and method of fabricating the same
    Patent number: 10249797
    Abstract: Exemplary embodiments of the present invention relate to a high-efficiency light emitting diode (LED).
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: April 2, 2019
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Da Hye Kim, Hong Chul Lim, Joon Hee Lee, Jong Kyun You
  • HIGH EFFICIENCY LIGHT EMITTING DIODE AND METHOD OF FABRICATING THE SAME
    Publication number: 20150243847
    Abstract: Exemplary embodiments of the present invention relate to a high-efficiency light emitting diode (LED).
    Type: Application
    Filed: April 23, 2015
    Publication date: August 27, 2015
    Inventors: Chang Yeon KIM, Da Hye Kim, Hong Chul Lim, Joon Hee Lee, Jong Kyun You
  • High efficiency light emitting diode and method of fabricating the same
    Patent number: 9029888
    Abstract: Exemplary embodiments of the present invention relate to a high-efficiency light emitting diode (LED).
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: May 12, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Da Hye Kim, Hong Chul Lim, Joon Hee Lee, Jong Kyun You
  • HIGH EFFICIENCY LIGHT EMITTING DIODE AND METHOD OF FABRICATING THE SAME
    Publication number: 20120119243
    Abstract: Exemplary embodiments of the present invention relate to a high-efficiency light emitting diode (LED).
    Type: Application
    Filed: May 17, 2011
    Publication date: May 17, 2012
    Applicant: SEOUL OPTO DEVICE CO., LTD.
    Inventors: Chang Yeon KIM, Da Hye KIM, Hong Chul LIM, Joon Hee LEE, Jong Kyun YOU