Patents by Inventor Kuk-Hwan Kim

Kuk-Hwan Kim 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: 20120049149
    Abstract: The present application describes a crossbar memory array. The memory array includes a first array of parallel nanowires of a first material and a second array of parallel nanowires of a second material. The first and the second array are oriented at an angle with each other. The array further includes a plurality of nanostructures of non-crystalline silicon disposed between a nanowire of the first material and a nanowire of the second material at each intersection of the two arrays. The nanostructures form a resistive memory cell together with the nanowires of the first and second materials.
    Type: Application
    Filed: November 7, 2011
    Publication date: March 1, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Wei Lu, Sung Hyun Jo, Kuk-Hwan Kim
  • Patent number: 8105977
    Abstract: The present invention relates to a counterfeit prevention paper and manufacturing method thereof, and more particularly to currency, securities, official document and several certificates, etc. The counterfeit prevention paper according to the present invention comprises a paper and a thermopaint layer which is formed on a paper and is discolored according to a temperature. The counterfeit prevention paper according to the present invention can detect easily a counterfeit by an unaided eye. Also, a function for preventing a counterfeit is not copied by a counterfeit device, thus the counterfeit prevent paper according to the present invention can improve a reliability of various official documents and several certificates, etc.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: January 31, 2012
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Kuk-Hwan Kim, Yang-Kyu Choi, Oktay Yarimaga, Hyun Gyu Park, Tae Won Kim, Yun Kyung Jung
  • Patent number: 8071972
    Abstract: The present application describes a crossbar memory array. The memory array includes a first array of parallel nanowires of a first material and a second array of parallel nanowires of a second material. The first and the second array are oriented at an angle with each other. The array further includes a plurality of nanostructures of non-crystalline silicon disposed between a nanowire of the first material and a nanowire of the second material at each intersection of the two arrays. The nanostructures form a resistive memory cell together with the nanowires of the first and second materials.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: December 6, 2011
    Assignee: The Regents of the University of Michigan
    Inventors: Wei Lu, Sung Hyun Jo, Kuk-Hwan Kim
  • Patent number: 8008706
    Abstract: The present invention relates to a non-volatile memory cell and a method of fabricating the same. The non-volatile memory cell according to the present invention comprises a substrate, a first oxide film formed over an active region of the substrate, a source and drain formed within the active region, a charge storage unit formed on the first oxide film, a second oxide film configured to surround the charge storage unit and formed on the first oxide film, and a gate formed to surround the second oxide film. According to the non-volatile memory cell and a cell array including the same in accordance with the present invention, the charge storage unit is fully surrounded by the gate or the gate line, thus a disturbance phenomenon that may occur due to the memory operation of cells formed in other neighboring gate or gate line can be minimized.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: August 30, 2011
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yang-Kyu Choi, Kuk-Hwan Kim
  • Publication number: 20100237318
    Abstract: Provided are a phase change memory device that can operate at low power and improve the scale of integration by reducing a contact area between a phase change material and a bottom electrode, and a method for fabricating the same. The phase change memory comprises a current source electrode, a phase change material layer, a plurality of carbon nanotube electrodes, and an insulation layer. The current source electrode supplies external current to a target. The phase change material layer is disposed to face the current source electrode in side direction. The carbon nanotube electrodes are disposed between the current source electrode and the phase change material layer. The insulation layer is formed outside the carbon nanotube electrodes and functions to reduce the loss of heat generated at the carbon nanotube electrodes.
    Type: Application
    Filed: June 7, 2010
    Publication date: September 23, 2010
    Inventors: YANG-KYU CHOI, KUK-HWAN KIM
  • Patent number: 7749801
    Abstract: Provided are a phase change memory device that can operate at low power and improve the scale of integration by reducing a contact area between a phase change material and a bottom electrode, and a method for fabricating the same. The phase change memory comprises a current source electrode, a phase change material layer, a plurality of carbon nanotube electrodes, and an insulation layer. The current source electrode supplies external current to a target. The phase change material layer is disposed to face the current source electrode in side direction. The carbon nanotube electrodes are disposed between the current source electrode and the phase change material layer. The insulation layer is formed outside the carbon nanotube electrodes and functions to reduce the loss of heat generated at the carbon nanotube electrodes.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: July 6, 2010
    Assignee: Korea Advanced Institute of Science & Technology
    Inventors: Yang-Kyu Choi, Kuk-Hwan Kim
  • Patent number: 7741664
    Abstract: Provided are a CMOS image sensor and a method for fabricating the same. A nanopillar is plurally formed at an upper end of a light receiving element.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: June 22, 2010
    Assignee: Korea Advanced Institute of Science & Technology
    Inventors: Yang-Kyu Choi, Kuk-Hwan Kim
  • Publication number: 20100102290
    Abstract: The present application describes a crossbar memory array. The memory array includes a first array of parallel nanowires of a first material and a second array of parallel nanowires of a second material. The first and the second array are oriented at an angle with each other. The array further includes a plurality of nanostructures of non-crystalline silicon disposed between a nanowire of the first material and a nanowire of the second material at each intersection of the two arrays. The nanostructures form a resistive memory cell together with the nanowires of the first and second materials.
    Type: Application
    Filed: October 20, 2009
    Publication date: April 29, 2010
    Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Wei Lu, Sung Hyun Jo, Kuk-Hwan Kim
  • Patent number: D616642
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: June 1, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Chang-Soo Lee
  • Patent number: D645435
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: September 20, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Jin-Soo Kim, Seog-Guen Kim
  • Patent number: D652004
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: January 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D652014
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: January 10, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D653638
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: February 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D653639
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: February 7, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D654044
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: February 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D654045
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: February 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D654047
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: February 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D654461
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: February 21, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D658145
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim
  • Patent number: D658146
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 24, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kuk-Hwan Kim, Nam-Mi Kim, Seog-Guen Kim