Patents by Inventor Doo Seok Jeong

Doo Seok Jeong 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: 20200343404
    Abstract: An embodiment includes a method of texturing a semiconductor substrate, a semiconductor substrate manufactured using the method, and a solar cell including the semiconductor substrate, the method including: forming metal nanoparticles on a semiconductor substrate, primarily etching the semiconductor substrate, removing the metal nanoparticles, and secondarily etching the primarily etched semiconductor substrate to form nanostructures.
    Type: Application
    Filed: November 1, 2017
    Publication date: October 29, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Doh Kwon LEE, In Ho Kim, Won Mok Kim, Jong Keuk Park, Taek Sung Lee, Doo Seok Jeong, Hyeon Seung Lee, Jeung Hyun Jeong
  • Patent number: 10697073
    Abstract: A method for manufacturing an electrode for hydrogen production using a tungsten carbide nanoflake may include: forming a tungsten carbide nanoflake on a nanocrystalline diamond film by means of a chemical vapor deposition process in which hydrogen plasma is applied; and increasing activity of the tungsten carbide nanoflake to a hydrogen evolution reaction by removing an oxide layer or a graphene layer from a surface of the tungsten carbide nanoflake. Since an oxide layer and/or a graphene layer of a surface of tungsten carbide is removed by means of cyclic cleaning after tungsten carbide is formed, hydrogen evolution reaction (HER) activity of the tungsten carbide may be increased, thereby enhancing utilization as a catalyst electrode.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: June 30, 2020
    Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Wook Seong Lee, Young-Jin Ko, Young Joon Baik, Jong-Keuk Park, Kyeong Seok Lee, Inho Kim, Doo Seok Jeong
  • Publication number: 20190386281
    Abstract: An embodiment of the present invention relates to a coupling structure of a battery pack, and the objective of the present invention is to provide a battery pack which can stably and easily fix a bus bar. To this end, provided is a battery pack comprising: a base defining the entire bottom surface; a battery module installed on the base; a module fixing part positioned around a side surface and an upper surface of the battery module and coupled to the base; a first bus bar fixing part coupled to the module fixing part; a bus bar disposed on the first bus bar fixing part and electrically connectable to the battery module; and a second bus bar fixing part installed to cover the bus bar and fixed to the first bus bar fixing part.
    Type: Application
    Filed: October 20, 2017
    Publication date: December 19, 2019
    Inventors: Doo Sung JEON, Wun Seok JEONG, Dong Jin PARK
  • Publication number: 20190025120
    Abstract: Present invention provides a spectrometer including a first unit spectral filter configured to absorb or reflect light in a part of a wavelength band of a light spectrum of an incident target, a second unit spectral filter configured to absorb or reflect light in a wavelength band different from the part of the wavelength band, a first light detector configured to detect a first light spectrum passing through the first unit spectral filter, a second light detector configured to detect a second light spectrum passing through the second unit spectral filter, and a processing unit configured to perform a function of restoring a light spectrum of the target incident from spectra of light detected from the first light detector and the second light detector.
    Type: Application
    Filed: July 31, 2017
    Publication date: January 24, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyeong Seok LEE, Won Mok KIM, Gyu Weon HWANG, In Ho KIM, Wook Seong LEE, Doo Seok JEONG
  • Publication number: 20190018188
    Abstract: Provided is an optical filter including a cladding layer, a plurality of metal patterns configured to form a periodic lattice structure on the cladding layer; and an optical waveguide layer on the plurality of metal patterns. Light travels from the optical waveguide layer to the cladding layer. Provided is an optical device using the optical filter.
    Type: Application
    Filed: July 31, 2017
    Publication date: January 17, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyeong Seok LEE, Gyu Weon HWANG, In Ho KIM, Won Mok KIM, Wook Seong LEE, Doo Seok JEONG
  • Publication number: 20190016091
    Abstract: Provided is an optical filter including first and second reflection layers separated from each other, a dielectric region interposed between the first and second reflection layers and in which two materials of which refractive indexes are different are alternately disposed, and a buffer layer disposed between the dielectric region and at least one of the first and second reflection layers, wherein there are at least two filter regions in which relative volume ratios of the two materials alternately disposed are different.
    Type: Application
    Filed: July 31, 2017
    Publication date: January 17, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyeong Seok LEE, Gyu Weon HWANG, Won Mok KIM, In Ho KIM, Wook Seong LEE, Doo Seok JEONG
  • Publication number: 20180247941
    Abstract: A capacitor for a semiconductor memory element includes a lower electrode, a dielectric layer disposed on the lower electrode and including titanium oxide, and an upper electrode disposed on the dielectric layer. The lower electrode includes a first metal and a second metal, the first metal including at least one selected from the group consisting of platinum (Pt), osmium (Os), rhodium (Rh) and palladium (Pd), the second metal including at least one selected from the group consisting of ruthenium (Ru) and iridium (Ir).
    Type: Application
    Filed: July 13, 2017
    Publication date: August 30, 2018
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Seong Keun KIM, Jung Joon PYEON, Cheol Jin CHO, Sangtae KIM, Doo Seok JEONG, Seung-Hyub BAEK, Chong-Yun KANG, Ji-Won CHOI, Jin-Sang KIM
  • Patent number: 10062699
    Abstract: A capacitor for a semiconductor memory element includes a lower electrode, a dielectric layer disposed on the lower electrode and including titanium oxide, and an upper electrode disposed on the dielectric layer. The lower electrode includes a first metal and a second metal, the first metal including at least one selected from the group consisting of platinum (Pt), osmium (Os), rhodium (Rh) and palladium (Pd), the second metal including at least one selected from the group consisting of ruthenium (Ru) and iridium (Jr).
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: August 28, 2018
    Assignee: Korea Institute of Science and Technology
    Inventors: Seong Keun Kim, Jung Joon Pyeon, Cheol Jin Cho, Sangtae Kim, Doo Seok Jeong, Seung-Hyub Baek, Chong-Yun Kang, Ji-Won Choi, Jin-Sang Kim
  • Publication number: 20180038003
    Abstract: A method for manufacturing an electrode for hydrogen production using a tungsten carbide nanoflake may include: forming a tungsten carbide nanoflake on a nanocrystalline diamond film by means of a chemical vapor deposition process in which hydrogen plasma is applied; and increasing activity of the tungsten carbide nanoflake to a hydrogen evolution reaction by removing an oxide layer or a graphene layer from a surface of the tungsten carbide nanoflake. Since an oxide layer and/or a graphene layer of a surface of tungsten carbide is removed by means of cyclic cleaning after tungsten carbide is formed, hydrogen evolution reaction (HER) activity of the tungsten carbide may be increased, thereby enhancing utilization as a catalyst electrode.
    Type: Application
    Filed: May 30, 2017
    Publication date: February 8, 2018
    Inventors: Wook Seong LEE, Young-Jin KO, Young Joon BAIK, Jong-Keuk PARK, Kyeong Seok LEE, Inho KIM, Doo Seok JEONG
  • Patent number: 9726788
    Abstract: A method for fabricating a nanoantenna array may include forming a resist layer on a substrate, forming a focusing layer having a dielectric microstructure array on the resist layer, diffusing light one-dimensionally in a specific direction by using a linear diffuser, forming an anisotropic pattern on the resist layer by illuminating the light diffused by the linear diffuser on the focusing layer and the resist layer, depositing a material suitable for a plasmonic resonance onto the substrate and the resist layer on which the pattern is formed, and forming a nanoantenna array on the substrate by removing the resist layer and the material deposited on the resist layer. A light diffusing angle by the linear diffuser and a size of the dielectric microstructure are determined based on an aspect ratio of the pattern to be formed.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: August 8, 2017
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyeong Seok Lee, Won Mok Kim, Taek Sung Lee, Wook Seong Lee, Doo Seok Jeong, Inho Kim
  • Patent number: 9482798
    Abstract: A plasmonic nano-color coating layer includes a composite layer including a plurality of metal particle layers and a plurality of matrix layers and having a periodic multilayer structure in which the metal particle layers and the matrix layers are alternately arranged, a dielectric buffer layer located below the composite layer, and a mirror layer located below the dielectric buffer layer, wherein the color of the plasmonic nano-color coating layer is determined based on a nominal thickness of the metal particle layer and a separation between the metal particle layers.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: November 1, 2016
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyeong Seok Lee, Won Mok Kim, Taek Sung Lee, Wook Seong Lee, Doo Seok Jeong, Inho Kim
  • Patent number: 9252181
    Abstract: A color image sensor is disclosed. In one aspect, the color image sensor includes: a photo-sensitive cell having a lower electrode, an upper electrode, and a chalcogenide material located between the lower electrode and the upper electrode; and an image sensing circuit for measuring the wavelength or intensity of incident light based on an electric characteristic value generated from the photo-sensitive cell.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: February 2, 2016
    Assignee: Korea Institute of Science and Technology
    Inventors: Su Youn Lee, Byung Ki Cheong, Doo Seok Jeong
  • Publication number: 20150146180
    Abstract: A method for fabricating a nanoantenna array may include forming a resist layer on a substrate, forming a focusing layer having a dielectric microstructure array on the resist layer, diffusing light one-dimensionally in a specific direction by using a linear diffuser, forming an anisotropic pattern on the resist layer by illuminating the light diffused by the linear diffuser on the focusing layer and the resist layer, depositing a material suitable for a plasmonic resonance onto the substrate and the resist layer on which the pattern is formed, and forming a nanoantenna array on the substrate by removing the resist layer and the material deposited on the resist layer. A light diffusing angle by the linear diffuser and a size of the dielectric microstructure are determined based on an aspect ratio of the pattern to be formed.
    Type: Application
    Filed: April 15, 2014
    Publication date: May 28, 2015
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyeong Seok LEE, Won Mok KIM, Taek Sung LEE, Wook Seong LEE, Doo Seok JEONG, Inho KIM
  • Publication number: 20150116856
    Abstract: A plasmonic nano-color coating layer includes a composite layer including a plurality of metal particle layers and a plurality of matrix layers and having a periodic multilayer structure in which the metal particle layers and the matrix layers are alternately arranged, a dielectric buffer layer located below the composite layer, and a mirror layer located below the dielectric buffer layer, wherein the color of the plasmonic nano-color coating layer is determined based on a nominal thickness of the metal particle layer and a separation between the metal particle layers.
    Type: Application
    Filed: March 19, 2014
    Publication date: April 30, 2015
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyeong Seok LEE, Won Mok KIM, Taek Sung LEE, Wook Seong LEE, Doo Seok JEONG, Inho KIM
  • Patent number: 8785230
    Abstract: A localized surface plasmon resonance sensor may include a localized surface plasmon excitation layer including a chalcogenide material. The chalcogenide material may include: a first material including at least one of selenium (Se) and tellurium (Te); and a second material including at least one of germanium (Ge) and antimony (Sb). The localized surface plasmon excitation layer may be prepared by forming a thin film including the chalcogenide material and crystallizing the thin film to have a predetermined pattern by irradiating laser on the thin film.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: July 22, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Taek Sung Lee, Kyeong Seok Lee, In Ho Kim, Wook Seong Lee, Doo Seok Jeong, Won Mok Kim, Byung Ki Cheong
  • Publication number: 20130092818
    Abstract: A color image sensor is disclosed. In one aspect, the color image sensor includes: a photo-sensitive cell having a lower electrode, an upper electrode, and a chalcogenide material located between the lower electrode and the upper electrode; and an image sensing circuit for measuring the wavelength or intensity of incident light based on an electric characteristic value generated from the photo-sensitive cell.
    Type: Application
    Filed: April 26, 2012
    Publication date: April 18, 2013
    Inventors: Su Youn Lee, Byung Ki Cheong, Doo Seok Jeong