Patents by Inventor A Ran Hwang

A Ran Hwang 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: 20210152870
    Abstract: A display apparatus, including a microphone configured to receive a voice signal and a controller configured to generate a resulting screen corresponding to the voice signal different from a first displayed screen and according to a status of the content of the first displayed screen; to display the resulting screen on the display. Accordingly, the display apparatus provides a different resulting screen according to a status of the display apparatus.
    Type: Application
    Filed: January 27, 2021
    Publication date: May 20, 2021
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-ran LEE, Hee-seob RYU, Sung-wook CHOI, Sung-pil HWANG
  • Publication number: 20210095085
    Abstract: The present invention relates to a window cover film and a flexible display panel including the same. More particularly, the present invention relates to a window cover film including a base layer and a hard coating layer, and a flexible display panel including the same. Since the window cover film of the present invention has high surface hardness, flexibility, the excellent bending properties, the window cover film may be restored to the original form without permanent deformation and/or damage of the hard coating layer and the window cover film even though a predetermined deformation is repeated.
    Type: Application
    Filed: September 28, 2020
    Publication date: April 1, 2021
    Inventors: Jong Nam Ahn, Keon Hyeok Ko, Byoung Sun Ko, Hye Jin Kim, Je Seung Park, Jin Su Park, A Ran Hwang
  • Patent number: 10204728
    Abstract: A variable inductance inductor includes an inductor unit having a coil pattern; and at least one inductance controlling unit configured to vary a contact area between the coil pattern and a moveable conductor unit to change a current path.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: February 12, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Mi Ran Hwang, Seong Jong Cheon
  • Patent number: 10193055
    Abstract: A printed circuit board includes: insulating layers and wiring layers arranged in stacked configuration; a cavity disposed in a first insulating layer among the insulating layers; a piezoelectric substrate disposed in the cavity; an electrode disposed on the piezoelectric substrate and configured to convert an electrical signal into an elastic wave or to convert an elastic wave into an electrical signal; and a sealing part disposed on the piezoelectric substrate, the sealing part enclosing the electrode and forming an air gap around the electrode.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: January 29, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Mi Ran Hwang, Se Jong Kim
  • Patent number: 10112255
    Abstract: The present invention relates to a thin plate bonding method or a thin plate assembly, and more particularly, to a thin plate bonding method which includes coating with a coating material after increasing a surface roughness or increasing a surface roughness through coating with a coating material, and then, conducting diffusion bonding, such that excellent bonding strength is achieved even when the diffusion bonding is performed at low temperature and low pressure, thin plate deformation by thermal stress may be prevented, and high air tightness may be obtained since the coating material fills micro-pores.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: October 30, 2018
    Assignee: Korea Institute of Energy Research
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Dong-Wook Lee, Ju-Seok Park, Chun-Boo Lee, Sung-Wook Lee, Duck-Kyu Oh, Jin-Woo Park, Min-Ho Jin
  • Publication number: 20170129047
    Abstract: The present invention relates to a thin plate bonding method or a thin plate assembly, and more particularly, to a thin plate bonding method which includes coating with a coating material after increasing a surface roughness or increasing a surface roughness through coating with a coating material, and then, conducting diffusion bonding, such that excellent bonding strength is achieved even when the diffusion bonding is performed at low temperature and low pressure, thin plate deformation by thermal stress may be prevented, and high air tightness may be obtained since the coating material fills micro-pores.
    Type: Application
    Filed: June 17, 2015
    Publication date: May 11, 2017
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jong-Soo PARK, Kyung-Ran HWANG, Dong-Wook LEE, Ju-Seok PARK, Chun-Boo LEE, Sung-Wook LEE, Duck-Kyu OH, Jin-Woo PARK, Min-Ho JIN
  • Patent number: 9587541
    Abstract: The present invention relates to a configuration method of a multifunctional particulate filter (MFPF), capable of reducing the content of particulate material (PM), carbon monoxide (CO) and hydrocarbons (HC), and increasing the content of nitrogen dioxide (NO2). The MFPF may coat zeolite and an oxidation catalyst on both exhaust gas intake/discharge sides simultaneously, so as to minimize the slippage of HC and generate high-concentration NO2.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: March 7, 2017
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jong-Soo Park, Young-Jae Lee, Kyung-Ran Hwang, Shin-Kun Ryi, Dong-Kook Kim, Tae-Hwan Kim, Chun-Boo Lee, Kyung-Sun Yoo
  • Publication number: 20160372247
    Abstract: A variable inductance inductor includes an inductor unit having a coil pattern; and at least one inductance controlling unit configured to vary a contact area between the coil pattern and a moveable conductor unit to change a current path.
    Type: Application
    Filed: January 29, 2016
    Publication date: December 22, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Mi Ran HWANG, Seong Jong CHEON
  • Patent number: 9452932
    Abstract: The present invention relates to a hydrogen production module by an integrated reaction/separation process, and a hydrogen production reactor using the same, and more specifically, provides a hydrogen production apparatus which laminates a plurality of layered unit cells, is mounted in a pressure-resistant chamber, and can be operated at a high pressure, wherein the unit cell comprises a first modified catalyst, and a second modified catalyst opposite to a hydrogen separator. The hydrogen production module can produce hydrogen using a hydrocarbon, carbon monoxide and an alcohol as sources. Particularly, all the modified catalysts are formed into a porous metal plate form, thereby maximizing the heat transfer effect necessary for reaction.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: September 27, 2016
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Shin-Kun Ryi, Chun-Boo Lee, Sung-Wook Lee, Jin-Woo Park
  • Patent number: 9427700
    Abstract: The present invention relates to a multilayer module for hydrogen separation using a pressure-resistant chamber so that unit cells using a metal separation membrane through which only hydrogen selectively passes are stacked to improve separation efficiency, and a mixed gas is uniformly supplied into each of the unit cells. In the multilayer module, the unit cells are stacked on each other, and the mixed gas is supplied into the chamber. Also, mixed gas input ports are each disposed in the side surfaces of the unit cells to supply the mixed gas.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: August 30, 2016
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Shin-Kun Ryi, Chun-Boo Lee, Sung-Wook Lee, Jin-Woo Park
  • Patent number: 9415343
    Abstract: The present invention relates to a hydrogen separation membrane which coats granular ceramic onto the surface of a porous metal support and which coats a hydrogen permeation metal thereon so as to inhibit diffusion between the support and a hydrogen separation layer, and to a method for manufacturing same. As a result, the metal support can be modularized with ease, the hydrogen permeation layer can be made thinner to increase the amount of hydrogen permeation, the use of a separation material can be minimized, and the hydrogen separation membrane can have higher competitiveness.
    Type: Grant
    Filed: January 2, 2013
    Date of Patent: August 16, 2016
    Assignee: Korea Institute of Energy Research
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Shin-Kun Ryi, Tae-Hwan Kim, Chun-Boo Lee, Sung-Wook Lee
  • Publication number: 20160156333
    Abstract: A printed circuit board includes: insulating layers and wiring layers arranged in stacked configuration; a cavity disposed in a first insulating layer among the insulating layers; a piezoelectric substrate disposed in the cavity; an electrode disposed on the piezoelectric substrate and configured to convert an electrical signal into an elastic wave or to convert an elastic wave into an electrical signal; and a sealing part disposed on the piezoelectric substrate, the sealing part enclosing the electrode and forming an air gap around the electrode.
    Type: Application
    Filed: November 30, 2015
    Publication date: June 2, 2016
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Mi Ran HWANG, Se Jong KIM
  • Patent number: 9333477
    Abstract: Disclosed is a hydrocarbon reforming device using a micro channel heater capable of utilizing combustion heat of a fuel as an energy source for reforming reaction of hydrocarbon, which includes metal sheets having micro channels laminated in plural, thus being suitably used as a middle and small compact type device for hydrogen production. Specifically, in the case where a hydrogen purification process is applied to a hydrogen production device combined with a separation membrane, since the hydrogen-containing gas, which does not penetrate the separation membrane, can be utilized as a fuel, the inventive device may be utilized as a hydrogen production system having high efficiency.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: May 10, 2016
    Assignee: Korea Institute of Energy Research
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Chun-Boo Lee, Sung-Wook Lee, Shin-Kun Ryi
  • Patent number: 9266732
    Abstract: The present invention relates to an apparatus for reforming a hydrocarbon using a micro-channel heater, which can utilize the combustion heat of a fuel as an energy source needed for reforming a hydrocarbon. A plurality of thin metal plates having micro-channels may be laminated in a multilayered structure so as to manufacture a small to medium compact hydrogen-producing apparatus. In particular, a reforming unit may be designed to have a multilayered structure so as to improve the capacity of a reformer up to a level desired by a user.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: February 23, 2016
    Assignee: Korea Institute of Energy Research
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Shin-Kun Ryi, Chun-Boo Lee, Sung-Wook Lee
  • Patent number: 9199204
    Abstract: The present invention relates to a method for protecting a hydrogen separation membrane from particulate contaminants in the process of producing or purifying hydrogen by using the separation membrane. The protection layer, wherein a cermet is formed by coating a ceramic and a metal able to cause surface movement of hydrogen molecules and hydrogen atoms to the surface of the separation membrane, plays the role of blocking contact between the separation membrane and particles (contaminant or catalyst) contained in the gas. In this way, it is possible to improve the durability of the hydrogen separation membrane and to minimize effects on the hydrogen permeability of the separation membrane.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: December 1, 2015
    Assignee: Korea Institute of Energy Research
    Inventors: Kyung-Ran Hwang, Jong-Soo Park, Shin-Kun Ryi, Jin-Suk Lee, Chung-Boo Lee, Sung-Wook Lee
  • Patent number: 9180421
    Abstract: The present invention relates to a micro-channel water-gas shift (WGS) reaction device for WGS for generating hydrogen and pre-combustion carbon capture and storage (CCS) from coal gasification, the device using a micro-channel heat exchanger and through-type metal catalyst capable of rapidly dissipating heat generated during single-stage WGS reaction of high concentration CO in a high temperature space.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: November 10, 2015
    Assignee: Korea Institute of Energy Research
    Inventors: Kyung-Ran Hwang, Jong-Soo Park, Shin-Kun Ryi, Jin-Suk Lee, Chun-Boo Lee, Sung-Wook Lee
  • Publication number: 20150298971
    Abstract: The present invention relates to a hydrogen production module by an integrated reaction/separation process, and a hydrogen production reactor using the same, and more specifically, provides a hydrogen production apparatus which laminates a plurality of layered unit cells, is mounted in a pressure-resistant chamber, and can be operated at a high pressure, wherein the unit cell comprises a first modified catalyst, and a second modified catalyst opposite to a hydrogen separator. The hydrogen production module can produce hydrogen using a hydrocarbon, carbon monoxide and an alcohol as sources. Particularly, all the modified catalysts are formed into a porous metal plate form, thereby maximizing the heat transfer effect necessary for reaction.
    Type: Application
    Filed: August 8, 2012
    Publication date: October 22, 2015
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Shin-Kun Ryi, Chun-Boo Lee, Sung-Wook Lee, Jin-Woo Park
  • Publication number: 20150020686
    Abstract: The present invention relates to a hydrogen separation membrane which coats granular ceramic onto the surface of a porous metal support and which coats a hydrogen permeation metal thereon so as to inhibit diffusion between the support and a hydrogen separation layer, and to a method for manufacturing same. As a result, the metal support can be modularized with ease, the hydrogen permeation layer can be made thinner to increase the amount of hydrogen permeation, the use of a separation material can be minimized, and the hydrogen separation membrane can have higher competitiveness.
    Type: Application
    Filed: January 2, 2013
    Publication date: January 22, 2015
    Applicant: Korea Institute of Energy Research
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Shin-Kun Ryi, Tae-Hwan Kim, Chun-Boo Lee, Sung-Wook Lee
  • Publication number: 20140298993
    Abstract: Provided is a hydrogen separation membrane module, and more particularly, a hydrogen separation membrane module having a mixing part capable of increasing hydrogen purification efficiency by maximizing a mixing effect and a dispersion effect of a mixture gas supplied to the hydrogen separation membrane using the mixing part provided with a microchannel to supply the mixture gas to the hydrogen separation membrane.
    Type: Application
    Filed: October 23, 2012
    Publication date: October 9, 2014
    Inventors: Shin-Kun Ryi, Jong-Soo Park, Kyung-Ran Hwang, Chun-Boo Lee, Sung-Wook Lee
  • Publication number: 20140301917
    Abstract: The present invention relates to an apparatus for reforming a hydrocarbon using a micro-channel heater, which can utilize the combustion heat of a fuel as an energy source needed for reforming a hydrocarbon. A plurality of thin metal plates having micro-channels may be laminated in a multilayered structure so as to manufacture a small to medium compact hydrogen-producing apparatus. In particular, a reforming unit may be designed to have a multilayered structure so as to improve the capacity of a reformer up to a level desired by a user.
    Type: Application
    Filed: December 6, 2011
    Publication date: October 9, 2014
    Applicant: Korea Institute of Energy Research
    Inventors: Jong-Soo Park, Kyung-Ran Hwang, Shin-Kun Ryi, Chun-Boo Lee, Sung-Wook Lee