Patents by Inventor Hong Koo Kim
Hong Koo 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).
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Patent number: 11730005Abstract: Various light emitting diode device embodiments that include emissive material elements, e.g., core-shell quantum dots, that are either (i) provided in nanoscale holes provided in an insulating layer positioned between an electron supply/transport layer and a hole supply/transport layer, or (ii) provided on a suspension layer positioned above and covering a nanoscale hole in such an insulating layer. Also, various methods of making such light emitting diode devices, including lithographic and non-lithographic methods.Type: GrantFiled: May 26, 2021Date of Patent: August 15, 2023Assignee: University of Pittsburgh—of the Commonwealth System of Higher EducationInventors: Hong Koo Kim, Daud Hasan Emon
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Publication number: 20210399248Abstract: Various light emitting diode device embodiments that include emissive material elements, e.g., core-shell quantum dots, that are either (i) provided in nanoscale holes provided in an insulating layer positioned between an electron supply/transport layer and a hole supply/transport layer, or (ii) provided on a suspension layer positioned above and covering a nanoscale hole in such an insulating layer. Also, various methods of making such light emitting diode devices, including lithographic and non-lithographic methods.Type: ApplicationFiled: May 26, 2021Publication date: December 23, 2021Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: HONG KOO KIM, DAUD HASAN EMON
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Patent number: 11050031Abstract: Various light emitting diode device embodiments that include emissive material elements, e.g., core-shell quantum dots, that are either (i) provided in nanoscale holes provided in an insulating layer positioned between an electron supply/transport layer and a hole supply/transport layer, or (ii) provided on a suspension layer positioned above and covering a nanoscale hole in such an insulating layer. Also, various methods of making such light emitting diode devices, including lithographic and non-lithographic methods.Type: GrantFiled: October 17, 2019Date of Patent: June 29, 2021Assignee: University of Pittsburgh-Of the Commonwealth System of Higher EducationInventors: Hong Koo Kim, Daud Hasan Emon
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Publication number: 20200052233Abstract: Various light emitting diode device embodiments that include emissive material elements, e.g., core-shell quantum dots, that are either (i) provided in nanoscale holes provided in an insulating layer positioned between an electron supply/transport layer and a hole supply/transport layer, or (ii) provided on a suspension layer positioned above and covering a nanoscale hole in such an insulating layer. Also, various methods of making such light emitting diode devices, including lithographic and non-lithographic methods.Type: ApplicationFiled: October 17, 2019Publication date: February 13, 2020Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Hong Koo Kim, Daud Hasan Emon
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Patent number: 10529938Abstract: Various light emitting diode device embodiments that include emissive material elements, e.g., core-shell quantum dots, that are either (i) provided in nanoscale holes provided in an insulating layer positioned between an electron supply/transport layer and a hole supply/transport layer, or (ii) provided on a suspension layer positioned above and covering a nanoscale hole in such an insulating layer. Also, various methods of making such light emitting diode devices, including lithographic and non-lithographic methods.Type: GrantFiled: May 16, 2018Date of Patent: January 7, 2020Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Hong Koo Kim, Daud Hasan Emon
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Publication number: 20180337359Abstract: Various light emitting diode device embodiments that include emissive material elements, e.g., core-shell quantum dots, that are either (i) provided in nanoscale holes provided in an insulating layer positioned between an electron supply/transport layer and a hole supply/transport layer, or (ii) provided on a suspension layer positioned above and covering a nanoscale hole in such an insulating layer. Also, various methods of making such light emitting diode devices, including lithographic and non-lithographic methods.Type: ApplicationFiled: May 16, 2018Publication date: November 22, 2018Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: HONG KOO KIM, DAUD HASAN EMON
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Publication number: 20180210214Abstract: A vertical dipole array structure includes a substrate that supports a film, which is not comprised of a negative-index metamaterial. The film includes a plurality of tilt-oriented portions and apertures. At least two of the tilt-oriented portions are separated by an aperture, and the tilt-oriented portions are configured such that incident radiation is redirected into a negative or positive refraction direction.Type: ApplicationFiled: December 14, 2017Publication date: July 26, 2018Applicant: University of Pittsburgh - Of the Commonwealth System of Higher EducationInventors: Hong Koo KIM, Yun-Suk JUNG, Yonggang XI
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Patent number: 9880393Abstract: A vertical dipole array structure includes a substrate that supports a film, which is not comprised of a negative-index metamaterial. The film includes a plurality of tilt-oriented portions and apertures. At least two of the tilt-oriented portions are separated by an aperture, and the tilt-oriented portions are configured such that incident radiation is redirected into a negative or positive refraction direction.Type: GrantFiled: July 21, 2011Date of Patent: January 30, 2018Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Hong Koo Kim, Yun-Suk Jung, Yonggang Xi
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Publication number: 20160196948Abstract: An electronic device including a first conducting layer, a second conducting layer, and an insulating layer provided between the conducting layers. At least one side wall extends from the first conducting layer to the second conducting layer and includes at least a portion of the first conducting layer, the second conducting layer and the insulating layer. A bias voltage is applied between the first and second conducting layers, wherein responsive to the bias voltage, a two dimensional electron system is induced at least in one of the first conducting layer and the second conducting layer, and wherein electrons from the two dimensional electron system are emitted from the side wall side wall as a result of Coulombic repulsion and travel in air from the one of the first conducting layer and the second conducting layer to the other of the first conducting layer and the second conducting layer.Type: ApplicationFiled: March 11, 2016Publication date: July 7, 2016Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: HONG KOO KIM, SIWAPON SRISONPHAN
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Patent number: 9331189Abstract: An electronic device including a first conducting layer, a second conducting layer, and an insulating layer provided between the conducting layers. At least one side wall extends from the first conducting layer to the second conducting layer and includes at least a portion of the first conducting layer, the second conducting layer and the insulating layer. A bias voltage is applied between the first and second conducting layers, wherein responsive to the bias voltage, a two dimensional electron system is induced at least in one of the first conducting layer and the second conducting layer, and wherein electrons from the two dimensional electron system are emitted from the side wall side wall as a result of Coulombic repulsion and travel in air from the one of the first conducting layer and the second conducting layer to the other of the first conducting layer and the second conducting layer.Type: GrantFiled: May 7, 2013Date of Patent: May 3, 2016Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Hong Koo Kim, Siwapon Srisonphan
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Publication number: 20130247973Abstract: A vertical dipole array structure includes a substrate that supports a film, which is not comprised of a negative-index metamaterial. The film includes a plurality of tilt-oriented portions and apertures. At least two of the tilt-oriented portions are separated by an aperture, and the tilt-oriented portions are configured such that incident radiation is redirected into a negative or positive refraction direction.Type: ApplicationFiled: July 21, 2011Publication date: September 26, 2013Inventors: Hong Koo Kim, Yun-Suk Jung, Yonggang Xi
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Publication number: 20090298193Abstract: A method of inducing explosive atomization of materials is provided using a metal-oxide-semiconductor (MOS)-based structure under electrical excitation. Explosive atomization of the gate electrode and surrounding dielectric materials creates a microplasma that is substantially confined with the device at the metal/dielectric interface. The device can generate a microplasma in either the accumulation or inversion regime. The high degree of confinement of the microplasma allows chip-scale implementation of atomic emission spectroscopy and detection using a minimal amount of analyte.Type: ApplicationFiled: April 30, 2009Publication date: December 3, 2009Inventors: Hong Koo Kim, Sung Jun Yoon
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Publication number: 20090073434Abstract: A nanostructured optical device includes a metal film or a plurality of metal islands having an array of a plurality of openings having a width that is less than at least one first predetermined wavelength of incident radiation to be provided onto the film or the islands. The metal film or islands are configured such that the incident radiation is resonant with at least one plasmon mode on the metal film or metal islands.Type: ApplicationFiled: November 20, 2008Publication date: March 19, 2009Inventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
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Patent number: 7492530Abstract: A nano-optic device comprises a plurality of subwavelength apertures in a metal film or between metal islands. The device is adapted to shape a radiation beam transmitted there through. For example, beam shaping includes at least one of beam focusing, beam bending and beam collimating.Type: GrantFiled: June 11, 2007Date of Patent: February 17, 2009Assignee: University of Pittsburgh-Of The Commonwealth System Of Higher EducationInventors: Hong Koo Kim, Zhijun Sun, Christopher C. Capelli
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Patent number: 7456383Abstract: A nanostructured optical device includes a metal film or a plurality of metal islands having an array of a plurality of openings having a width that is less than at least one first predetermined wavelength of incident radiation to be provided onto the film or the islands. The metal film or islands are configured such that the incident radiation is resonant with at least one plasmon mode on the metal film or metal islands.Type: GrantFiled: July 22, 2004Date of Patent: November 25, 2008Assignee: University of PittsburghInventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
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Patent number: 7426040Abstract: A Fabry-Perot cavity filter includes a first mirror and a second mirror. A gap between the first and the second mirror monotonically varies as a function of width of the filter. This filter may be used with photodetector and a channel selection filter in an optical device, such as a spectrum analyzer. The channel selection filter may be a metal nanooptic filter array which includes plurality of subwavelength apertures in a metal film or between metal islands.Type: GrantFiled: August 19, 2005Date of Patent: September 16, 2008Assignee: University of PittsburghInventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
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Patent number: 7420156Abstract: A metal nanowire array acts as a band pass filter in the visible to IR range. The filter may be used in a monochromator, spectrometer, color camera, analyte detector or other devices.Type: GrantFiled: February 2, 2006Date of Patent: September 2, 2008Assignee: University of PittsburghInventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
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Publication number: 20080135739Abstract: A metal nanowire array acts as a band pass filter in the visible to IR range. The filter may be used in a monochromator, spectrometer, color camera, analyte detector or other devices.Type: ApplicationFiled: February 2, 2006Publication date: June 12, 2008Inventors: Hong Koo Kim, Zhijun Sun, Yun Suk Jung
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Patent number: 7315426Abstract: A nano-optic device comprises a plurality of subwavelength apertures in a metal film or between metal islands. The device is adapted to shape a radiation beam transmitted there through. For example, beam shaping includes at least one of beam focusing, beam bending and beam collimating.Type: GrantFiled: December 2, 2004Date of Patent: January 1, 2008Assignee: University of PittsburghInventors: Hong Koo Kim, Zhijun Sun, Christopher C. Capelli
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Patent number: 7227210Abstract: A method for fabricating a non-volatile memory device. The method includes providing a substrate, e.g., silicon. The method also includes forming an oxide layer overlying the substrate; and forming a buffer layer overlying the oxide layer. A ferroelectric material is formed overlying the substrate and is formed preferably overlying the buffer layer. The method also includes forming a gate layer overlying the ferroelectric material, where the gate layer is overlying a channel region. The method further includes forming first source/drain region adjacent to a first side of the channel region and a second source/drain region adjacent to a second side of the channel region. In other embodiments, the method can also include other steps.Type: GrantFiled: October 6, 2004Date of Patent: June 5, 2007Assignee: Hynix Semiconductor, Inc.Inventor: Hong Koo Kim