Patents by Inventor Dong-Joon Lee

Dong-Joon Lee 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: 20090191465
    Abstract: An additive for an electrolyte of a lithium secondary battery, the additive including a polysiloxane-based compound represented by Formula 1 below: In formula 1 R1, R2, R3, A1, A2, l, m, n, o and p are as described in the detailed description of the present invention.
    Type: Application
    Filed: August 4, 2008
    Publication date: July 30, 2009
    Applicant: SAMSUNG SDI CO., Ltd
    Inventors: Seung-sik HWANG, Young-gyoon Ryu, Seok-soo Lee, Dong-joon Lee
  • Publication number: 20090191464
    Abstract: An organic electrolytic solution includes a lithium salt; an organic solvent containing a high dielectric constant solvent; and a polymerizable cycloolefin monomer, and an lithium battery employing the same. The organic electrolytic solution prevents decomposition of an electrolyte, and thus the lithium battery employing the organic electrolytic solution has improved cycle characteristics and lifetime.
    Type: Application
    Filed: September 4, 2008
    Publication date: July 30, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Yoon-sok Kang, Dong-joon Lee, Seok-soo Lee, Seung-sik Hwang
  • Publication number: 20090155800
    Abstract: There is provided a biosensor capable of increasing a detecting sensitivity of a target substance by using a nano wire having excellent electrical characteristics and by immobilizing a receptor of the target substance to be detected on a substrate which is disposed between a nano wire and another nano wire and a method for manufacturing the same. A biosensor according to the present invention can be manufactured with an arrangement in which the nano wire is selectively arranged on a solid substrate in a matrix and, therefore, many materials can be detected at the same time. Particularly, since the degradation of electrical characteristics of the nano wire can be prevented in the present invention, a target substance is very sensitively detected through a small amount thereof.
    Type: Application
    Filed: April 4, 2007
    Publication date: June 18, 2009
    Applicants: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION, MITECH CORPORATION
    Inventors: Seung-Hun Hong, Byung-Yang Lee, Dong-Joon Lee
  • Publication number: 20090155696
    Abstract: An organic electrolytic solution for a lithium primary or secondary battery includes a lithium salt; an organic solvent; a radical initiator represented by Formula 1 below; and a polymerizable monomer represented by Formula 2 below: R1—N2+X???<Formula 1> wherein R1, R2, R3, R4, and X? are described herein. The organic electrolytic solution improves charge-discharge efficiency and increases cell capacity of the lithium primary or secondary battery.
    Type: Application
    Filed: April 15, 2008
    Publication date: June 18, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Seok-soo LEE, Young-gyoon Ryu, Dong-joon Lee, Seung-sik Hwang
  • Publication number: 20090155816
    Abstract: There is provided a biosensor capable of increasing a detecting sensitivity of a target substance of glutamate, by using a nano wire having excellent electrical characteristics and by immobilizing a receptor of glutamate to be detected on a substrate which is disposed between a nano wire and another nano wire and a method for manufacturing the same. The biosensor for detecting glutamate according to the present invention can be manufactured with an arrangement in which the nano wire is selectively arranged on a solid substrate in a matrix. Since this biosensor can prevent the degradation of the nano wire in the electrical characteristic, it can sensitively detect glutamate even through a small amount thereof is contained in a food so that it can be effectively used in detecting the food additive existing in the processed foodstuffs.
    Type: Application
    Filed: April 4, 2007
    Publication date: June 18, 2009
    Applicants: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION, MITECH CORPORATION
    Inventors: Seung-Hun Hong, Byung-Yang Lee, Dong-Joon Lee
  • Publication number: 20090111029
    Abstract: An organic electrolyte solution including: a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a silane-based compound represented by Formula 1 below: In Formula 1, m and n are each independently integers of from 1 to 30; and R1, R2, R3, R4, R5, R6, R7, and R8 are represented in the detailed description of the present invention. The organic electrolyte solution can be included in a lithium battery, so as to suppress the degradation of an electrolyte, and to improve cycle properties and life span of the battery.
    Type: Application
    Filed: June 30, 2008
    Publication date: April 30, 2009
    Inventors: Seok-soo Lee, Boris A. Trofimov, Young-gyoon Ryu, Seung-sik Hwang, Dong-joon Lee
  • Publication number: 20090111028
    Abstract: An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X1, X2, and X3 each independently represent O, S, or NR9; and R1, R2, R3, R4, R5, R6, R7, R8, and R9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.
    Type: Application
    Filed: June 27, 2008
    Publication date: April 30, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyonn Ryu, Seung-sik Hwang, Dong-joon Lee, Boris A. Trofimov
  • Publication number: 20090035656
    Abstract: An organic electrolytic solution includes a lithium salt; an organic solvent containing a high dielectric constant solvent and/or a low boiling point solvent; and a glycidyl ether compound represented by Formula 1: where, n, R1, R2, R3, R4, R5, R6 and A are described in the detailed description. In conventional organic electrolytic solutions, irreversible capacity is increased due to decomposition of a polar solvent. A lithium battery employing the organic electrolytic solution has excellent charge/discharge characteristics by inhibiting cracks of a negative electrode active material which occur during charging and discharging of the battery. Therefore, the lithium battery can have high stability, reliability and charge/discharge efficiency.
    Type: Application
    Filed: January 17, 2008
    Publication date: February 5, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: SEOK-SOO LEE, Young-gyoon Ryu, Dong-joon Lee
  • Patent number: 7316957
    Abstract: A semiconductor device and a method for manufacturing the same are provided. A gate insulating film is formed under a vacuum condition to prevent deterioration of reliability of the device due to degradation of a gate insulating material and to have stable operating characteristics. The semiconductor device includes an element isolating film formed at element isolating regions of a semiconductor substrate, which is divided into active regions and the element isolating regions; a gate insulating film having openings with a designated width formed at the active regions of the semiconductor substrate; gate electrodes formed on the gate insulating film; and lightly doped drain regions and source/drain impurity regions formed in the surface of the semiconductor substrate at both sides of the gate electrodes.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: January 8, 2008
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Dong Joon Lee
  • Patent number: 6928310
    Abstract: An apparatus for supplying power to a mobile phone by utilizing an external power source when a battery of the mobile phone has been exhausted. In a mobile phone having an earphone-microphone connector which can be connected with an earphone-microphone set, the earphone-microphone connector has additional contacts through which external power can be supplied to the mobile phone from an external power source, especially from another mobile phone. Therefore, even when the battery of the mobile phone has been exhausted, a user can make communication through the mobile phone by utilizing external electric power in a simple and easy manner, without largely changing the existing construction of the mobile phone.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: August 9, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Dong-Joon Lee
  • Publication number: 20030211869
    Abstract: Disclosed is an apparatus for supplying power to a mobile phone by utilizing an external power source when a battery of the mobile phone has been exhausted. In a mobile phone having an earphone-microphone connector which can be connected with an earphone-microphone set, the earphone-microphone connector has additional contacts through which external power can be supplied to the mobile phone from an external power source, especially from another mobile phone. Therefore, even when the battery of the mobile phone has been exhausted, a user can make communication through the mobile phone by utilizing external electric power in a simple and easy manner, without largely changing the existing construction of the mobile phone.
    Type: Application
    Filed: April 17, 2003
    Publication date: November 13, 2003
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventor: Dong-Joon Lee
  • Patent number: 5656448
    Abstract: The invention pertains to dipstick immunoassay devices. The device comprises a base member and a single, combined sample contact zone and test zone, wherein the test zone incorporates the use of symbols to detect analytes in a sample of biological fluid. A first immunological component, an anti-immunoglobulin capable of binding to an enzyme-labeled antibody, is immobilized in a control indicia portion. A second immunological component, capable of specifically binding to a target analyte which is bound to the enzyme-labeled antibody to form a sandwich complex, is immobilized in a test indicia portion. The enzyme-labeled antibody produces a visual color differential between a control indicia portion and a non-indicia portion in the test zone upon contact with a substrate.
    Type: Grant
    Filed: January 14, 1994
    Date of Patent: August 12, 1997
    Assignee: Princeton Biomeditech Corporation
    Inventors: Jemo Kang, John A. Colanduoni, Dong Joon Lee, Byungwoo Youn, Chiyoung Ok, Walter J. Kang