Patents by Inventor Kyong Hwang

Kyong 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: 20160081979
    Abstract: The present invention provides a method for separating and preparing a therapeutic agent for chronic myelogenous leukimeia capable of effectively inhibiting growth of T315I, which is known as a mutation of a BCR-ABL fusion gene that causes chronic myelogenous leukemia, comprising the steps of: 1) preliminary extracting by adding ethyl acetate to finely chopped bark of Liriodendron tulipifera L., adding butanol to an extracted fluid for layer-separating an ethyl acetate layer and a butanol layer, removing the butanol layer, and decompression-condensing the remainder to obtain a crude extract; and 2) adding a C1-C3 lower alcohol aqueous solution and n-hexane to the obtained crude extract, removing lipids and water insoluble material dissolved in the n-hexane layer, and obtaining and separating a lower alcohol aqueous solution layer to separate and refine highly pure epi-tulipinolide and costunolide.
    Type: Application
    Filed: April 23, 2014
    Publication date: March 24, 2016
    Applicant: CHO DANG PHARM. CO., LTD.
    Inventors: Ki Woon KIM, Hye Dong YOO, Yong Hwan KIM, Il Kyong HWANG, Young Seon KIM, Mi Jung JU, Su Jin KANG
  • Publication number: 20100326599
    Abstract: Disclosed is an integrated vacuum producing apparatus, which vacuumizes a process chamber of an apparatus for manufacturing semiconductors, flat panel displays, etc. or exhausts gaseous material and by-products generated within the process chamber to an outside so as to purify it. Gaseous material, e.g. gas, generated within a chamber for manufacturing a semiconductor, a flat panel display, etc. is exhausted through each separate exhaust line so as to be purified. Therefore, excessive operation of a purifying system can be prevented through distribution of exhaust gas so that life span can be extended according to the operation of the apparatus. Also, exhausting can be smoothly achieved through each exhaust line so that it is possible to prevent delay of a semi-conductor manufacturing process due to inability of exhausting, and to easily remove non-reacted gas and by-products in an exhausting process.
    Type: Application
    Filed: May 16, 2008
    Publication date: December 30, 2010
    Inventors: Tae-Kyong Hwang, Heaung-Shig Oh, Myung-Keun Noh
  • Patent number: 7611340
    Abstract: A complex dry vacuum pump including a root rotor and a screw rotor is disclosed for manufacturing semiconductors and/or displays in a vacuum state in a process chamber, and discharging gaseous material and/or by-products generated during manufacturing to the exterior of the process chamber. The pump can provide high gas compression transfer efficiency so as to form a vacuum in the process chamber and/or keep high gas compression transfer efficiency when the gaseous material and/or by-products are discharged. Balance between the root rotor and the screw rotor can prevent vibration and noise generated in the vacuum pump, and molding material associated with the pump may allow a stator coil to be separated and prevent various by-products from flowing from the vacuum pump.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: November 3, 2009
    Assignee: LOT Vacuum Co., Ltd.
    Inventors: Tae-Kyong Hwang, Myung Keun Noh, Heaung Shig Oh
  • Publication number: 20080025858
    Abstract: A complex dry vacuum pump including a root rotor and a screw rotor is disclosed for manufacturing semiconductors and/or displays in a vacuum state in a process chamber, and discharging gaseous material and/or by-products generated during manufacturing to the exterior of the process chamber. The pump can provide high gas compression transfer efficiency so as to form a vacuum in the process chamber and/or keep high gas compression transfer efficiency when the gaseous material and/or by-products are discharged. Balance between the root rotor and the screw rotor can prevent vibration and noise generated in the vacuum pump, and molding material associated with the pump may allow a stator coil to be separated and prevent various by-products from flowing from the vacuum pump.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 31, 2008
    Applicant: LOT Vacuum Co., Ltd.
    Inventors: Tae-Kyong Hwang, Myung Noh, Heaung Oh
  • Publication number: 20070211168
    Abstract: A method and apparatus for setting a language in a television receiver enable one language setting operation performed in a first menu, corresponding to one of a plurality of language-specific functions, to automatically set a preferred language for one or more other functions. The method includes steps of setting a language in a first menu according to a user selection, the first menu corresponding to one function of a plurality of language-specific functions; and automatically setting a language of at least one other function of the plurality of language-specific functions to the language set according to the user selection, the language of the at least one other function being set interoperably with the first menu. Thus, if at least one language is selected in the first menu, a language of at least one other function is set to the first-menu language.
    Type: Application
    Filed: April 27, 2006
    Publication date: September 13, 2007
    Inventors: Myoung Ko, Kyong Hwang, Su Lee, Sim Lee, Jae Park, Hee Yoo, Hong Kim, Eun Cho
  • Publication number: 20060120018
    Abstract: A multi-layer chip capacitor comprises a capacitor body formed by stacking a plurality of dielectric layers; a plurality of first and second internal electrodes formed on the dielectric layers, each having at least one through hole formed through at least one side thereof; lowermost electrode patterns, each including a lead portion extended to one side of the capacitor body, and a via contact portion; a plurality of conductive vias, vertically extended to pass through the through holes so as not to contact the inner surfaces of the through holes, each of the contact vias connected to either the first or second internal electrode and contacting the via contact portion; and a plurality of terminal electrodes formed on the outer surface of the capacitor body, and connected to the conductive vias through the lead portions.
    Type: Application
    Filed: November 15, 2005
    Publication date: June 8, 2006
    Inventors: Byoung Lee, Chang Shim, Kyong Hwang, Dong Park, Sang Park, Min Park
  • Publication number: 20050009498
    Abstract: A control method and a control system for a home network system in a multi-user environment are disclosed. The control system includes a plurality of slave devices, a user ID receiver receiving user ID data from a user, and a master device coupled to the slave devices for operation control. The master device includes a memory and a controller coupled to the memory and the user ID receiver. The memory initially prestores user-specific control settings preset by a plurality of preregistered users and user ID data of the preregistered users. Then, the controller authenticates the user upon receiving the user ID data from the user ID receiver, and it automatically controls operational functions of the slave devices according to the user-specific control settings of the authenticated user, which is extracted from the memory.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 13, 2005
    Inventors: Myoung Ho, Kyong Hwang, So Heo