Patents by Inventor Jun Sin Yi

Jun Sin Yi 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: 11641156
    Abstract: A method for controlling a fault of a three phase four wire interlinking converter system according to one embodiment of the present disclosure comprises obtaining a first d-q-o coordinate plane based on an internal phase angle of output voltage produced from each phase of an inverter; converting the first d-q-o coordinate plane to a second d-q-o coordinate plane based on the o-axis configured differently from the first d-q-o coordinate plane; obtaining an output voltage vector for determining a fault location by performing d-q transform on the second d-q-o coordinate plane; determining occurrence of a fault and an area related to the fault based on the output voltage vector; and in the occurrence of the fault, allocating a zero voltage vector to the area related to the fault.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: May 2, 2023
    Assignee: Research & Business Foundation Sungkyunkwan University
    Inventors: Chung Yuen Won, Kwang Su Na, Mi Na Kim, Bong Yeon Choi, Kyoung Min Kang, Hoon Lee, Chang Gyun An, Tae Gyu Kim, Jun Sin Yi
  • Patent number: 11404955
    Abstract: A method for controlling a fault of a three phase four wire interlinking converter system according to one embodiment of the present disclosure comprises obtaining a first d-q-o coordinate plane based on an internal phase angle of output voltage produced from each phase of an inverter; converting the first d-q-o coordinate plane to a second d-q-o coordinate plane based on the o-axis configured differently from the first d-q-o coordinate plane; obtaining an output voltage vector for determining a fault location by performing d-q transform on the second d-q-o coordinate plane; determining occurrence of a fault and an area related to the fault based on the output voltage vector; and in the occurrence of the fault, allocating a zero voltage vector to the area related to the fault.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: August 2, 2022
    Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Chung Yuen Won, Kwang Su Na, Mi Na Kim, Bong Yeon Choi, Kyoung Min Kang, Hoon Lee, Chang Gyun An, Tae Gyu Kim, Jun Sin Yi
  • Publication number: 20220045599
    Abstract: A method for controlling a fault of a three phase four wire interlinking converter system according to one embodiment of the present disclosure comprises obtaining a first d-q-o coordinate plane based on an internal phase angle of output voltage produced from each phase of an inverter; converting the first d-q-o coordinate plane to a second d-q-o coordinate plane based on the o-axis configured differently from the first d-q-o coordinate plane; obtaining an output voltage vector for determining a fault location by performing d-q transform on the second d-q-o coordinate plane; determining occurrence of a fault and an area related to the fault based on the output voltage vector; and in the occurrence of the fault, allocating a zero voltage vector to the area related to the fault.
    Type: Application
    Filed: June 21, 2021
    Publication date: February 10, 2022
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Chung Yuen WON, Kwang Su NA, Mi Na KIM, Bong Yeon CHOI, Kyoung Min KANG, Hoon LEE, Chang Gyun AN, Tae Gyu KIM, Jun Sin YI
  • Publication number: 20220045601
    Abstract: A method for controlling a fault of a three phase four wire interlinking converter system according to one embodiment of the present disclosure comprises obtaining a first d-q-o coordinate plane based on an internal phase angle of output voltage produced from each phase of an inverter; converting the first d-q-o coordinate plane to a second d-q-o coordinate plane based on the o-axis configured differently from the first d-q-o coordinate plane; obtaining an output voltage vector for determining a fault location by performing d-q transform on the second d-q-o coordinate plane; determining occurrence of a fault and an area related to the fault based on the output voltage vector; and in the occurrence of the fault, allocating a zero voltage vector to the area related to the fault.
    Type: Application
    Filed: September 3, 2021
    Publication date: February 10, 2022
    Applicant: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Chung Yuen WON, Kwang Su NA, Mi Na KIM, Bong Yeon CHOI, Kyoung Min KANG, Hoon LEE, Chang Gyun AN, Tae Gyu KIM, Jun Sin YI
  • Patent number: 8110485
    Abstract: Provided are nanocrystal silicon layer structures formed using a plasma deposition technique, methods of forming the same, nonvolatile memory devices including the nanocrystal silicon layer structures, and methods of fabricating the nonvolatile memory devices. A method of forming a nanocrystal silicon layer structure includes forming a buffer layer on a substrate and forming a nanocrystal silicon layer on the buffer layer by a plasma deposition technique using silicon (Si)-containing gas and hydrogen (H2)-containing gas. In this method, the nanocrystal silicon layer can be directly deposited on a glass substrate using plasma vapor deposition without performing a post-processing process so that the fabrication of a nonvolatile memory device can be simplified, thereby reducing fabrication cost.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: February 7, 2012
    Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Jun sin Yi, Byoung deog Choi, Sung wook Jung, Kyung soo Jang, Jae hyun Cho
  • Patent number: 8022398
    Abstract: A thin film transistor (TFT), a method of forming the same and a flat panel display device having the same are disclosed.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: September 20, 2011
    Assignee: Sungkyunkwan University Foundation For Corporate Collaboration
    Inventors: Byoung deog Choi, Jun sin Yi, Sung wook Jung, Kyung soo Jang, Jae hyun Cho
  • Publication number: 20110155204
    Abstract: Disclosed herein is a wire type thin film solar cell, including: a metal wire which is made of any one selected from the group consisting of aluminum (Al), titanium (Ti), chromium (Cr), molybdenum (Mo) and tungsten (W); an N-type layer which is deposited on a circumference of the metal wire and conducts electrons generated from the metal wire; a P-type layer which is deposited on the N-type layer and emits electrons excited by solar light; and a transparent electrode layer which is deposited on the P-type layer. The wire type thin film solar cell can exhibit high photoelectric conversion efficiency compared to conventional flat-plate type thin film solar cells and can be easily manufactured into a highly-dense solar cell module.
    Type: Application
    Filed: February 4, 2010
    Publication date: June 30, 2011
    Inventors: Jun Sin Yi, Jin Joo Park, Young Kuk Kim
  • Publication number: 20100148181
    Abstract: Provided are nanocrystal silicon layer structures formed using a plasma deposition technique, methods of forming the same, nonvolatile memory devices including the nanocrystal silicon layer structures, and methods of fabricating the nonvolatile memory devices. A method of forming a nanocrystal silicon layer structure includes forming a buffer layer on a substrate and forming a nanocrystal silicon layer on the buffer layer by a plasma deposition technique using silicon (Si)-containing gas and hydrogen (H2)-containing gas. In this method, the nanocrystal silicon layer can be directly deposited on a glass substrate using plasma vapor deposition without performing a post-processing process so that the fabrication of a nonvolatile memory device can be simplified, thereby reducing fabrication cost.
    Type: Application
    Filed: February 19, 2009
    Publication date: June 17, 2010
    Applicant: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Byoung Deog Choi, Jun Sin YI, Sung Wook Jung, Kyung Soo Jang, Jae Hyun Cho
  • Publication number: 20100148155
    Abstract: A thin film transistor (TFT), a method of forming the same and a flat panel display device having the same are disclosed.
    Type: Application
    Filed: February 19, 2009
    Publication date: June 17, 2010
    Applicant: Sungkyunkwan University Foundation for Corporate Collaboration
    Inventors: Byoung deog CHOI, Jun sin Yi, Sung wook Jung, Kyung soo Jang, Jae hyun Cho
  • Patent number: 7719047
    Abstract: A non-volatile memory device is capable of reducing an excessive leakage current due to a rough surface of a polysilicon and of realizing improved blocking function by forming the first oxide film including a silicon oxy-nitride (SiOxNy) layer using nitrous oxide (N2O) plasma, and by forming silicon-rich silicon nitride film, and a fabricating method thereof and a memory apparatus including the non-volatile memory device. Further, the non-volatile memory device can be fabricated on the glass substrate without using a high temperature process.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: May 18, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Byoung Deog Choi, Jun Sin Yi, Sung Wook Jung, Sung Hyung Hwang
  • Patent number: 7553720
    Abstract: A non-volatile memory device includes a buffer oxide film on a substrate; a polysilicon layer on the buffer oxide film; a silicon oxy-nitride (SiON) layer on the polysilicon layer, a first insulator layer on the SiON layer, a nitride film on the first insulator, a second insulator layer on the nitride film, an electrode on the second insulator, and a source/drain in the polysilicon layer.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: June 30, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Byoung Deog Choi, Ki Yong Lee, Ho Kyoon Chung, Jun Sin Yi, Sung Wook Jung, Hyun Min Kim, Jun Sik Kim
  • Patent number: 7550823
    Abstract: A nonvolatile memory cell is capable of reducing an excessive current leakage due to a rough surface of a polysilicon and of performing even at a low temperature process by forming the first oxide film including a silicon oxynitride (SiOxNy) layer using nitrous oxide plasma and by forming a plurality of silicon nanocrystals in a nitride film by implanting a silicon nanocrystal on the nitride film by an ion implantation method, and a fabricating method thereof and a memory apparatus including the nonvolatile memory cell.
    Type: Grant
    Filed: July 13, 2007
    Date of Patent: June 23, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Byoung Deog Choi, Jun Sin Yi, Sung Wook Jung, Sung Hyung Hwang
  • Publication number: 20080121887
    Abstract: A non-volatile memory device is capable of reducing an excessive leakage current due to a rough surface of a polysilicon and of realizing improved blocking function by forming the first oxide film including a silicon oxy-nitride (SiOxNy) layer using nitrous oxide (N2O) plasma, and by forming silicon-rich silicon nitride film, and a fabricating method thereof and a memory apparatus including the non-volatile memory device. Further, the non-volatile memory device can be fabricated on the glass substrate without using a high temperature process.
    Type: Application
    Filed: July 13, 2007
    Publication date: May 29, 2008
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Byoung Deog Choi, Jun Sin Yi, Sung Wook Jung, Sung Hyung Hwang
  • Publication number: 20080121888
    Abstract: A nonvolatile memory cell is capable of reducing an excessive current leakage due to a rough surface of a polysilicon and of performing even at a low temperature process by forming the first oxide film including a silicon oxynitride (SiOxNy) layer using nitrous oxide plasma and by forming a plurality of silicon nanocrystals in a nitride film by implanting a silicon nanocrystal on the nitride film by an ion implantation method, and a fabricating method thereof and a memory apparatus including the nonvolatile memory cell.
    Type: Application
    Filed: July 13, 2007
    Publication date: May 29, 2008
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Byoung Deog CHOI, Jun Sin Yi, Sung Wook Jung, Sung Hyung Hwang