Patents by Inventor Kyunghan Choi

Kyunghan Choi 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: 9855618
    Abstract: Provided are a method of soldering a functionalized metal oxide, and an electronic device manufactured thereby, and more particularly, a method of soldering a functionalized metal oxide which is capable of growing a solder structure by a hydrothermal synthesis method using a pulsed laser, and is usable in a UV sensor, and an electronic device manufactured thereby. According to the present invention, thermal diffusion generated from a laser is limited due to the use of a pulsed laser, and thus, nanosolder having high density and a shape to be precisely adjustable may be prepared by a hydrothermal synthesis method by the pulsed laser, thereby facilitating the joining of the nanostructure, and further, the nanosolder is formed between the nanostructures, thereby being usable as a metal oxide structure having functionality.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: January 2, 2018
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Kyoungsik Yu, Kyungmook Kwon, Jaeho Shim, Kyunghan Choi
  • Patent number: 9583650
    Abstract: Provided are a integrated plasmonic circuit including a plasmonic source using a surface plasmon resonance phenomenon, a plasmonic detector detecting an optical signal generated in the plasmonic source, and a link structure between the plasmonic source and the plasmonic detector, that is, a signal transferring part, and a method of manufacturing the same. Provided are a integrated plasmonic circuit capable of realizing both of miniaturization and speed improvement by overcoming both of a limitation of an electronic device in terms of a signal speed in spite of being excellent in terms of miniaturization efficiency and a limitation of an existing optical device in terms of miniaturization due to a diffraction limitation of light in spite of being improved in terms of a signal speed, and a method of manufacturing the same.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: February 28, 2017
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Kyoungsik Yu, Kyungmok Kwon, Kyunghan Choi
  • Publication number: 20160158864
    Abstract: Provided are a method of soldering a functionalized metal oxide, and an electronic device manufactured thereby, and more particularly, a method of soldering a functionalized metal oxide which is capable of growing a solder structure by a hydrothermal synthesis method using a pulsed laser, and is usable in a UV sensor, and an electronic device manufactured thereby. According to the present invention, thermal diffusion generated from a laser is limited due to the use of a pulsed laser, and thus, nanosolder having high density and a shape to be precisely adjustable may be prepared by a hydrothermal synthesis method by the pulsed laser, thereby facilitating the joining of the nanostructure, and further, the nanosolder is formed between the nanostructures, thereby being usable as a metal oxide structure having functionality.
    Type: Application
    Filed: February 16, 2015
    Publication date: June 9, 2016
    Inventors: Kyoungsik Yu, Kyungmook Kwon, Jaeho Shim, Kyunghan Choi