Patents by Inventor Chan Yoon

Chan Yoon 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: 20070254532
    Abstract: The present invention relates to a power distribution panel in which a plurality of loads is connected to an incoming power source. The power distribution panel comprises an input terminal connecting with an incoming power line; a common line extending from the input terminal; a plurality of introduction lines furcating from the common line in parallel; connecting means connecting with different load sides, such as a circuit breaker; and a terminal body comprising a central slot in which the common line is built, a plurality of side slots in which the respective introduction lines are built, an insulation block projectingly formed on the sides of the terminal body, and an identification block for identifying the output terminals of unit source out of the plurality of parallel-connected output terminals. According to the present invention, the input power can be distributed to the load sides conveniently, and a user can flexibly design the electrical stability, if necessary.
    Type: Application
    Filed: August 8, 2005
    Publication date: November 1, 2007
    Inventor: Jong-Chan Yoon
  • Patent number: 7241884
    Abstract: The present invention relates to emitting compounds for organic electroluminescent device, particularly to porphines-platinum metal complex compounds represented by the following formula (1): wherein R1 and R2 are as defined in the specification. In addition, the present invention relates to an organic electroluminescent device comprising the above material which has high luminescence efficiency, enhanced operating life time, and high purity of red chromaticity.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: July 10, 2007
    Assignee: LG Electronics Inc.
    Inventors: Sang-Dae Kim, Yoon-Heung Tak, Dong-Uk Kim, Tae-Jeong Kim, Ung-Chan Yoon, Sung-Hoon Kim, Lee-Soon Park
  • Publication number: 20060241182
    Abstract: The present invention relates to antibiotics, functional cosmetics and functional foods comprising levulinic acid or its derivatives as effective ingredients. More particularly, the present invention relates to antibiotics comprising levulinic acid or its derivatives having antibiotic activities against various microorganisms including Gram positive bacteria, Gram negative bacteria, yeast and drug-resistant bacteria. Also, the present invention relates to functional cosmetics and functional foods comprising the same.
    Type: Application
    Filed: June 19, 2006
    Publication date: October 26, 2006
    Inventors: Hong-Ki Jun, Ung-Chan Yoon
  • Publication number: 20050250474
    Abstract: A method is provided for performing an authentication procedure according to location registration and update for a mobile subscriber station (MSS) in a broadband wireless access (BWA) communication system. The system includes the MSS operating in idle mode to minimize power consumption, paging groups each being formed by a plurality of adjacent cells in which a plurality of MSSs are paged, base stations (BSs) for paging the plurality of MSSs within each paging group, and a server for controlling location registration and authentication for the plurality of MSSs. The server determines whether to approve a request for transition to the idle mode received from the MSS through a BS. If the server approves the request for the transition to the idle mode, it allocates authentication information to the MSS through the BS and registers location of the MSS.
    Type: Application
    Filed: May 9, 2005
    Publication date: November 10, 2005
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung-Eun Hong, Young-Sik Ma, Hyon-Goo Kang, Chan-Yoon Jeong, Hyun-Kyung Kim
  • Patent number: 6960663
    Abstract: The present invention relates to luminescence materials for an organic electroluminescent device (OELD), and particularly to phenyl pyridine-iridium metal complex compounds of formula (1), and preparation method thereof. In addition, the present invention relates to an organic electroluminescent device using the luminescence materials according to the present invention, which can greatly enhance the efficiency of luminescence and increase the operating life time of the device: wherein R1, R2 and R3 each are the same as defined in the specification.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: November 1, 2005
    Assignee: LG Electronics, Inc.
    Inventors: Ki-Dong Kim, Sang-Dae Kim, Yoon-Soo Han, Yoon-Heung Tak, Dong-Uk Kim, Tae-Jeong Kim, Ung-Chan Yoon, Sung-Hoon Kim, Hee-Wan Moon
  • Publication number: 20050175860
    Abstract: The present invention relates to emitting compounds for organic electroluminescent device, particularly to phenyl pyridine-iridium metal complex compounds represented by the following formula (1): wherein R1 to R8, A1 to A3, and Py are as defined in the specification. In addition, the present invention relates to an organic electroluminescent device comprising the above material which has high luminescence efficiency, enhanced operating life time, and high purity of red chromaticity.
    Type: Application
    Filed: January 12, 2005
    Publication date: August 11, 2005
    Applicant: LG Electronics Inc.
    Inventors: Kwang-Hyun Kim, Dong-Uk Kim, Tae-Jeong Kim, Ung-Chan Yoon, Sung-Hoon Kim, Ki-Dong Kim
  • Patent number: 6911152
    Abstract: Disclosed herein are a high-sensitivity method and apparatus for monitoring the concentration or inflow of impurities in circulating water of a circulating water system, which can remarkably improve the measurement sensitivity by converting carbonate ions of low conductivity into chlorine or sulfate ions of increased conductivity, and which can measure the inflow of air or organic substances and the amount of inflow in a simple and efficient manner in real-time. The method of the present invention comprises the steps of: increasing a content of strong acids in sample water and thus increasing equivalent conductivity of the impurities, by utilizing cation exchange resin together with anion exchange resin, in which cations of the sample water are adsorbed on the cation exchange resin to form strong acids while weakly acidic anions of low dissociation degree in the sample water are adsorbed on the anion exchange resin to form strong acids; and measuring the increased conductivity of the impurities.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: June 28, 2005
    Assignee: Korea Electric Power Corporation
    Inventors: Woo-young Kim, Tae-won Lee, Jeom-in Baek, Yu-chan Yoon, Seung-min Lee
  • Publication number: 20050137394
    Abstract: The present invention relates to emitting compounds for organic electroluminescent device, particularly to porphines-platinum metal complex compounds represented by the following formula (1): wherein R1 and R2 are as defined in the specification. In addition, the present invention relates to an organic electroluminescent device comprising the above material which has high luminescence efficiency, enhanced operating life time, and high purity of red chromaticity.
    Type: Application
    Filed: October 7, 2004
    Publication date: June 23, 2005
    Applicant: LG Electronics Inc.
    Inventors: Sang-Dae Kim, Yoon-Heung Tak, Dong-Uk Kim, Tae-Jeong Kim, Ung-Chan Yoon, Sung-Hoon Kim, Lee-Soon Park
  • Publication number: 20050100828
    Abstract: The present invention relates to mass production method for three-dimensional micro structure and especially to the mass production method for three-dimensional metal micro structure having high aspect ratio. According to the present invention, the manufacturing of the three-dimensional micro structure having high aspect ratio is possible, which was impossible with the prior art of MEMS or LIGA. Especially, micro structure with complex shape can be obtained through dividing into layers and depositing the layers. Micro structure with any shape can be obtained with the method according to the present invention.
    Type: Application
    Filed: February 23, 2004
    Publication date: May 12, 2005
    Inventors: Jong Kim, Hyun Kim, Ki Kwon, Chan Yoon, Tae-Won Seo
  • Publication number: 20050062973
    Abstract: Disclosed is a surface plasmon optic device that has a periodic array of apertures in a dielectric substrate and a metal film formed on the dielectric substrate and emits light from metal-air interface. The surface plasmon optic device includes a surface plasmon generating apparatus, a surface plasmon detecting apparatus, a surface plasmon controlling apparatus, an etching apparatus, etc. if a metal diffraction grating is disposed on the metal film having a well-defined interface, propagation of the surface plasmon can be efficiently reflected, divided and controlled. Further, radiating surface plasmon having a half period of a lattice constant formed at air-metal (1, 0) can be preserved at a distance of at least a few micron.
    Type: Application
    Filed: November 10, 2001
    Publication date: March 24, 2005
    Inventors: Dai-Sik Kim, Sung-Chul Hohng, Christoph Lienau, Victor Malyarchuck, Jong-Wan Park, Yeo-Chan Yoon, Han-Youl Ryu, Kyeong-Hwa Yoo
  • Publication number: 20040249156
    Abstract: The present invention relates to luminescence materials for an organic electroluminescent device (OELD), and particularly to phenyl pyridine-iridium metal complex compounds of formula (1), and preparation method thereof.
    Type: Application
    Filed: December 2, 2003
    Publication date: December 9, 2004
    Applicant: LG Electronics Inc.
    Inventors: Ki-Dong Kim, Sang-Dae Kim, Yoon-Soo Han, Yoon-Heung Tak, Dong-Uk Kim, Tae-Jeong Kim, Ung-Chan Yoon, Sung-Hoon Kim, Hee-Wan Moon
  • Publication number: 20030147930
    Abstract: The present invention relates to antibiotics, functional cosmetics and functional foods comprising levulinic acid or its derivatives as effective ingredients. More particularly, the present invention relates to antibiotics comprising levulinic acid or its derivatives having antibiotic activities against various microorganisms including Gram positive bacteria, Gram negative bacteria, yeast and drug-resistant bacteria. Also, the present invention relates to functional cosmetics and functional foods comprising the same.
    Type: Application
    Filed: December 9, 2002
    Publication date: August 7, 2003
    Inventors: Hong-Ki Jun, Ung-Chan Yoon
  • Publication number: 20030080063
    Abstract: Disclosed herein are a high-sensitivity method and apparatus for monitoring the concentration or inflow of impurities in circulating water of a circulating water system, which can remarkably improve the measurement sensitivity by converting carbonate ions of low conductivity into chlorine or sulfate ions of increased conductivity, and which can measure the inflow of air or organic substances and the amount of inflow in a simple and efficient manner in real-time. The method of the present invention comprises the steps of: increasing a content of strong acids in sample water and thus increasing equivalent conductivity of the impurities, by utilizing cation exchange resin together with anion exchange resin, in which cations of the sample water are adsorbed on the cation exchange resin to form strong acids while weakly acidic anions of low dissociation degree in the sample water are adsorbed on the anion exchange resin to form strong acids; and measuring the increased conductivity of the impurities.
    Type: Application
    Filed: September 5, 2002
    Publication date: May 1, 2003
    Inventors: Woo-Young Kim, Tae-won Lee, Jeom-in Baek, Yu-chan Yoon, Seung-min Lee