Patents by Inventor Pan Kyu Choi

Pan Kyu 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).

  • Publication number: 20230253061
    Abstract: The present invention relates to a mechanical interconnect memory, and more particularly, to a mechanical interconnect memory applicable to smart interconnect technology that reduces the power consumption of an interconnect layer. A mechanical interconnect memory according to an embodiment of the present invention comprises: an upper electrode including: a spring part having at least one upward protruding portion between both ends of the spring part; and a moving part having one end of the moving part fixed to the at least one upward protruding portion of the spring part and the other end of the moving part being a free end of the moving part that is capable of moving up and down; and a lower electrode at least partially disposed under the moving part.
    Type: Application
    Filed: September 23, 2022
    Publication date: August 10, 2023
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jun-Bo YOON, Yong-bok Lee, Pan-kyu Choi, Su-hyun Kim, Tae-Soo Kim
  • Patent number: 11721495
    Abstract: A switching device in accordance with the present invention includes a first electrode and a second electrode, and the second electrode includes a body part and a cantilever connected to the body part. In addition, one end of a the cantilever comes into contact with the first electrode by an electrostatic force generated by a voltage applied to the first electrode and the second electrode, and the one end of the cantilever is separated from the first electrode due to heat generated by a voltage applied to both ends of the body part. In addition, the second electrode may include a 2-1 electrode, a 2-2 electrode, and an engineered beam connected in between.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: August 8, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-Bo Yoon, Pan Kyu Choi, Yong Bok Lee, Subon Kim, Suhyun Kim
  • Publication number: 20230055954
    Abstract: Disclosed are a method using a sequential contact analysis of a nano-asperity in order to predict an adhesion force between two contacting surfaces and a recording medium recording a program. According to an exemplary embodiment, the method may include: receiving surface roughness data of each of the two target objects; modeling a rough surface based on the surface roughness data; computing an adhesion force value when the two target objects contact and a deformation value of the first nano-asperity; determining whether a next contact is established; iteratively performing the computing and the determining when the deformation value of the first nano-asperity is larger than the separation distance of the next nano-asperity; and determining that a next contact is not established and computing and outputting force adhesion force in a final contact situation, when the deformation value of the first nano-asperity is smaller than the separation distance of the next nano-asperity.
    Type: Application
    Filed: November 30, 2021
    Publication date: February 23, 2023
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Jun-Bo YOON, Su-hyun KIM, Yong-bok LEE, Pan-kyu CHOI, Tae-Soo KIM
  • Publication number: 20220020540
    Abstract: A switching device in accordance with the present invention includes a first electrode and a second electrode, and the second electrode includes a body part and a cantilever connected to the body part. In addition, one end of a the cantilever comes into contact with the first electrode by an electrostatic force generated by a voltage applied to the first electrode and the second electrode, and the one end of the cantilever is separated from the first electrode due to heat generated by a voltage applied to both ends of the body part. In addition, the second electrode may include a 2-1 electrode, a 2-2 electrode, and an engineered beam connected in between.
    Type: Application
    Filed: July 29, 2020
    Publication date: January 20, 2022
    Applicants: Korea Advanced Institute of Science And Technology, Samsung Electronics Co., Ltd.
    Inventors: Jun-Bo YOON, Pan Kyu CHOI, Yong Bok LEE, Subon KIM, Suhyun KIM
  • Publication number: 20140183801
    Abstract: A hydro roll rod that includes a first liquid chamber and a second liquid chamber formed in a rear insulator and configured to provide a space in which a fluid is stored. A rod case is extended toward an outside from a portion where the first liquid chamber and the second liquid chamber are partitioned and configured to support a load. A first bridge encloses an outer circumference of the second liquid chamber and coupled to one side surface of the rod case. A second bridge encloses an outer circumference of the first liquid chamber and coupled to one side surface of the rod case. A plate is fixedly coupled to an end of the second liquid chamber. A first bracket encloses and supports outer circumferences of the first bridge and the plate, and a second bracket encloses and supports an outer circumference of the second bridge.
    Type: Application
    Filed: July 30, 2013
    Publication date: July 3, 2014
    Applicants: HYUNDAI MOTOR COMPANY, PYUNG HWA INDUSTRIAL CO., LTD., KIA MOTORS CORPORATION
    Inventors: Hee-Sung Lee, Jong-Su Park, Pan-Kyu Choi
  • Patent number: 6525463
    Abstract: A flat panel display device comprises a cathode on a first substrate for emitting electrons, a magnetic plate including first region focusing electrons emitted from the cathode to display an image and second region for applying the uniform magnetic field into the holes in the first region, and a fluorescent layer on the second substrate, on which the electrons outputted from the holes are impacted. In the second region, there are holes having the same shape and pitch as the first region.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: February 25, 2003
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Pan Kyu Choi, Je Gwang Yoo, Chang Ho Song