Patents by Inventor Duk Park

Duk Park 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: 20120025409
    Abstract: A method for a vacuum process of isostatic pressing of powder material comprises preparing an explosive charged rubber bag by charging a rubber bag with powder, forming a vacuum environment by putting the explosive charged rubber bag in a vacuum box, sealing an inlet of the explosive charged rubber bag which is in a vacuum state, and maintaining the vacuum state by putting the explosive charged rubber bag in a fluid contained in a reservoir by a predetermined depth in a state that the inlet of the explosive charged rubber bag has been sealed.
    Type: Application
    Filed: October 4, 2010
    Publication date: February 2, 2012
    Applicant: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Jin Sung LEE, Hee Duk PARK, Hee Sul SA
  • Publication number: 20110192820
    Abstract: An atomic layer etching apparatus using reactive radicals and neutral beams and an etching method using the same are provided.
    Type: Application
    Filed: February 25, 2010
    Publication date: August 11, 2011
    Applicant: SUNGKYUNKWAN UNIVERSITY Foundation for Corporate Collaboration
    Inventors: Geun-Young Yeom, Woong-Sun Lim, Sang-Duk Park, Yi-Yeon Kim, Byoung-Jae Park, Je-Kwan Yeon
  • Publication number: 20110093811
    Abstract: Provided is a system and method for performing an auto scroll. The system for performing the auto scroll may include an auto scroll determination unit to determine whether to perform the auto scroll on a page, an auto scroll performing unit to perform the auto scroll on the page so that a main text of the page may be obtained with focus, and a page providing unit to output the auto scrolled page. According to exemplary embodiments of the present invention, even though a user does not manually scroll to data of the page to be viewed, the data of the page may automatically be scrolled so that the data may be obtained with focus.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 21, 2011
    Applicant: NHN CORPORATION
    Inventors: Jung Woo PARK, Woong Sub KIM, Kee Duk PARK, Se KWON
  • Patent number: 7915276
    Abstract: The present invention relates to a berberrubine derivative having superior antifungal activity, more particularly to a berberrubine derivative having activity against chitin synthase, which participates in the synthesis of chitin and is essential in the growth of fungi, and having a potent antifungal activity against human pathogenic fungi.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: March 29, 2011
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Sung Uk Kim, Ki Duk Park, Jae Sun Moon, Tae Hoon Kang, Young Kook Kim
  • Publication number: 20110052999
    Abstract: An electrolyte includes an eutectic mixture composed of (a) a hetero cyclic compound having a predetermined chemistry figure, and (b) an ionizable lithium salt. An electrochemical device having the electrolyte. The eutectic mixture included in the electrolyte exhibits inherent characteristics of an eutectic mixture such as excellent thermal stability and excellent chemical stability, thereby improving the problems such as evaporation, ignition and side reaction of an electrolyte caused by the usage of existing organic solvents.
    Type: Application
    Filed: December 30, 2008
    Publication date: March 3, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Byoung-Bae Lee, Jae-Seung Oh, Ji-Won Park, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
  • Publication number: 20110014523
    Abstract: An electrolyte includes a eutectic mixture composed of (a) an alkoxy alkyl group-containing amide compound having a specific chemistry formula; and (b) an ionizable lithium salt. The eutectic mixture contained in the electrolyte has excellent high temperature stability as well as inherent characteristics of eutectic mixtures such as excellent thermal stability and excellent chemical stability, so it contributes to improvement of high temperature stability and decrease the lowest limit of a electrochemical window. Thus, the electrolyte may be usefully applied to electrochemical devices using various anode materials.
    Type: Application
    Filed: January 9, 2009
    Publication date: January 20, 2011
    Applicant: LG CHEM, LTD.
    Inventors: Ji-Won Park, Byoung-Bae Lee, Jae-Seung Oh, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
  • Publication number: 20100292476
    Abstract: The present invention relates to a berberrubine derivative having superior antifungal activity, more particularly to a berberrubine derivative having inhibitory activity against chitin synthase, which participates in the synthesis of chitin and is essential in the growth of fungi, and having a potent antifungal activity against human pathogenic fungi.
    Type: Application
    Filed: November 6, 2006
    Publication date: November 18, 2010
    Inventors: Sung Uk Kim, Ki Duk Park, Jae Sun Moon, Tae Hoon Kang, Young Kook Kim
  • Publication number: 20100239917
    Abstract: Disclosed is an electrolyte for a secondary battery, comprising an eutectic mixture consisting of: (a) am amide group-containing compound with at least one EDG introduced into the N-position thereof; and (b) an ionizable lithium salt. Also, provided are a secondary battery comprising such an electrolyte, and a method of adjusting an electrochemical stability window of an eutectic mixture consisting of an amide group-containing compound and a lithium salt by regulating electron donating properties of at least one substituent group introduced into the N-position of the amide group-containing compound.
    Type: Application
    Filed: January 16, 2008
    Publication date: September 23, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Byoung-Bae Lee, Shin-Jung Choi, Jae-Seung Oh, Ji-Won Park, Young-Kyu Han, Jae-Hoon Jung, Jae-Duk Park
  • Patent number: 7777178
    Abstract: A plasma generating apparatus and method using a neutral beam, capable of readily generating plasma at the same gas flow rate by changing the structure of an ion gun, without a separate ignition device, are provided. The apparatus includes a plasma generating part formed of a quartz cup, a radio frequency (RF) applying antenna disposed at the periphery of the plasma generating part, a cooling water supply part disposed at the periphery of the plasma generating part, and an igniter in direct communication with the plasma generating part, wherein a gas for generating plasma is supplied into the igniter, and the igniter has a higher local pressure than the plasma generating part at the same gas flow rate. The ion gun is also cheaper to manufacture since it does not require a separate power supply.
    Type: Grant
    Filed: March 23, 2006
    Date of Patent: August 17, 2010
    Assignee: Sungyunkwan University Foundation for Corporate Collaboration
    Inventors: Geun-Young Yeom, Sang-Duk Park, Chang-Kwon Oh
  • Publication number: 20100021815
    Abstract: Disclosed is a secondary battery comprising a cathode, an anode, a separator and an electrolyte, wherein the electrolyte comprises: (a) a eutectic mixture; and (b) a first compound reduced at a higher potential vs. lithium potential (Li/Li+) than the lowest limit of the electrochemical window of the eutectic mixture. The electrolyte uses a eutectic mixture in combination with an additive reduced in advance of the eutectic mixture upon the initial charge to form a solid electrolyte interface (SEI) layer. Therefore, the electrolyte can solve the problem of electrolyte decomposition occurring when using a eutectic mixture alone as an electrolyte for a battery, and thus can prevent degradation of the quality of a battery.
    Type: Application
    Filed: July 26, 2007
    Publication date: January 28, 2010
    Applicant: LG Chem, Ltd.
    Inventors: Jae-Seung Oh, Byoung-Bae Lee, Ji-Won Park, Shin-Jung Choi, Jae-Duk Park
  • Patent number: 7630117
    Abstract: Disclosed is an electrolyte for electrochromic devices, which includes a eutectic mixture comprising: (a) a compound having an acidic functional group and basic functional group; and (b) an ionizable lithium salt. An electrochromic device using the same electrolyte is also disclosed. Because the electrochromic device uses the electrolyte comprising the eutectic mixture, which is cost-efficient and has excellent thermal and chemical stability, there are no problems related with evaporation and exhaustion as well as flammability of electrolyte. Additionally, it is possible to minimize side reactions with constitutional elements of an electrochromic device and electrolyte, thereby improving the safety. Further, it is also possible to improve the quality of an electrochromic device by virtue of a broad electrochemical window and high electroconductivity of the eutectic mixture.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: December 8, 2009
    Assignee: LG Chem, Ltd.
    Inventors: Jae Seung Oh, Byoung Bae Lee, Jae Duk Park, Su Jin Mun
  • Patent number: 7564611
    Abstract: The present invention provides A method for preparing an electrode containing lithium nickel oxide wherein nickel has a single oxidation number, which comprises the following steps: a) preparing an electrode containing the lithium nickel oxide (LixNi1?yO, 0.4<x<1, 0<y<1) layer formed on the conductive substrate; and b) applying oxidative voltage to the electrode, and then applying reductive voltage thereto, an electrode prepared by the method and an electrochromic device containing the same. The electrode containing the lithium nickel oxide layer of the present invention exhibits wider optical electrochromic range and fast reaction speed, so that it can contribute to improving electrochromism and other optical properties of an electrochromic device.
    Type: Grant
    Filed: January 9, 2007
    Date of Patent: July 21, 2009
    Assignee: LG Chem, Ltd.
    Inventors: Ki Seok Jang, Jae Duk Park, Jae Seung Oh, Jin Young Park, Shin Jung Choi, Won Jong Kwon, Byoung Bae Lee
  • Patent number: 7491415
    Abstract: A fungicidal composition for agricultural use, containing Chloranthus henryi extract or a sesquiterpene compound separated from Chloranthus henryi extract as an active ingredient, the composition having a antifungal activity against phytopathogenic fungi.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: February 17, 2009
    Assignee: Korea Research Institute of Bioscience and Biotechnology
    Inventors: Sung Uk Kim, Yun Mi Lee, Ki Duk Park, Tae Hoon Kang, Sung Eun Kim, Mun-Chual Rho, Jae Sun Moon, Won Shik Choi
  • Patent number: 7411716
    Abstract: Disclosed is an electrochromic device comprising: (a) a first electrode; (b) a second electrode; (c) an electrochromic material; and (d) a gel polymer electrolyte containing an ionic liquid. A method for manufacturing the same is also disclosed. The electrochromic device uses a gel polymer electrolyte comprising an ionic liquid. Therefore, there is no problem related with electrolyte leakage. Additionally, it is possible to manufacture electrochromic devices by using plastic materials, because the ionic liquid gel polymer electrolyte permits structural deformation with ease. Further, because the electrochromic device uses an ionic liquid, it is possible to minimize side reactions between constitutional elements of an electrochromic device and electrolyte.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: August 12, 2008
    Assignee: LG Chem, Ltd.
    Inventors: Jae Seung Oh, Jae Duk Park, Byoung Bae Lee, Won Jong Kwon, Sang Ho Kim, Su Jin Mun
  • Publication number: 20080097891
    Abstract: The present application provides a method and system which provide a virtual stock exchange service. In one particular implementation, the system includes a resource locator database, a resource locator search server, a listed resource domain database, a user database, and a virtual stock trading management server. The resource locator database includes search information for a resource domain forming a search pool. The search information includes a search score assigned to the resource domain and one or more resource locators associated with the resource domain. The resource locator search server searches the resource locator database and transmits a result list of the search in response to a user's query. The listed resource domain database includes information of the resource domain categorized as a listed resource domain or a listing candidate resource domain according to the search score of the resource domain.
    Type: Application
    Filed: December 8, 2006
    Publication date: April 24, 2008
    Inventor: Yong Duk Park
  • Publication number: 20070221833
    Abstract: A plasma generating apparatus and method using a neutral beam, capable of readily generating plasma at the same gas flow rate by changing the structure of an ion gun, without a separate ignition device, are provided. The apparatus includes a plasma generating part formed of a quartz cup, a radio frequency (RF) applying antenna disposed at the periphery of the plasma generating part, a cooling water supply part disposed at the periphery of the plasma generating part, and an igniter in direct communication with the plasma generating part, wherein a gas for generating plasma is supplied into the igniter, and the igniter has a higher local pressure than the plasma generating part at the same gas flow rate. The ion gun is also cheaper to manufacture since it does not require a separate power supply.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 27, 2007
    Applicant: SUNGKYUNKWAN UNIVERSITY Foundation for Corporate Collaboration
    Inventors: Geun-Young YEOM, Sang-Duk PARK, Chang-Kwon OH
  • Publication number: 20070099090
    Abstract: Disclosed is a secondary battery comprising a cathode, an anode, a separator and an electrolyte, wherein the electrolyte comprises a eutectic mixture formed of: (a) an amide group-containing compound, and (b) an ionizable lithium salt, and the anode comprises a metal or metal oxide having a potential vs. lithium potential (Li/Li+) within electrochemical window of the eutectic mixture. An electrolyte for a secondary battery comprising the eutectic mixture is also disclosed. Since the secondary battery uses a eutectic mixture as an electrolyte in combination with an anode having a potential vs. lithium potential (Li/Li+) within the electrochemical window of the eutectic mixture, it solves the problems occurring in a conventional battery using a eutectic mixture as an electrolyte, such problems including decomposition of an electrolyte and degradation of the quality of a battery.
    Type: Application
    Filed: October 26, 2006
    Publication date: May 3, 2007
    Inventors: Jae Seung Oh, Shin Jung Choi, Byoung Bae Lee, Jae Duk Park, Ji Won Park
  • Patent number: 6416566
    Abstract: In the process for the production of liquid pig iron 943) or liquid steel pre-products from charging substances comprising iron ore (5) and fluxes and at least partially containing a portion of fines, the iron ore is directly reduced to sponge iron in at least two reduction stages (1, 2) by the fluidized bed method, the sponge iron is melted in a melt-down gasifying zone (39) under the supply of carbon carriers and an oxygen-containing gas, and a CO- and H2-containing reducing gas is produced which is injected into reduction zones of the reduction stages (1, 2), is reacted there, is withdrawn as a top gas and optionally is supplied to a consumer.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: July 9, 2002
    Assignees: Voest-Alpine Industrieanlagenbau GmbH, Pohang Iron & Steel Co., Ltd., Research Institute of Industrial Science & Technology, Incorporated Foundation
    Inventors: Werner Leopold Kepplinger, Felix Wallner, Johannes Schenk, Il-Ock Lee, Yong-Ha Kim, Moon Duk Park
  • Publication number: 20020029085
    Abstract: The present invention relates to an automatic building control system for electric appliance control, fire monitoring, security monitoring and other operations of a residential or business-purposed building. An information communication technology based on a host computer and a local system control unit is employed for the automatic control of the building. Electric appliances in the building are connected in common to a single signal line and assigned unique addresses to realize simple piped and wired structures easy to change in design, thereby minimizing the amount of time and labor required for the construction process and hardships resulting from the design change.
    Type: Application
    Filed: March 6, 2001
    Publication date: March 7, 2002
    Inventor: Kang Duk Park
  • Publication number: 20020025803
    Abstract: An apparatus for controlling a door using a mobile radio communication system is disclosed, in which the door of an apartment, a building, an automobile, a traveller's bag, a parking lot or the like can be automatically unlocked by using a mobile radio communication terminal at a remote place. The apparatus for controlling a door using a mobile radio communication system includes a transmitting device for generating control signals for unlocking the door, the door having an automatic locking device equipped with a receiving device for receiving wireless signals. It further includes a mobile radio communication terminal which can be connected through a wire to the transmitting device, for converting the control signals, the door unlocking signals, generated in the transmitting device into wireless signals for delivery. The wireless signals for unlocking the door are received by the receiving device installed in the door locking device for the door to be unlocked automatically.
    Type: Application
    Filed: June 12, 2001
    Publication date: February 28, 2002
    Inventor: Yong Duk Park