Patents by Inventor Kyoung-Muk Lee

Kyoung-Muk 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).

  • Patent number: 9466828
    Abstract: Disclosed is a method for preparing an electrode active material for a rechargeable lithium battery, including: performing first mixing to mix a carbon-based active material with a low crystalline carbon material; performing second mixing to mix the mixture of the carbon-based active material and the low crystalline carbon material with a ceramic; and performing a heat treatment, an electrode for a rechargeable lithium battery including the electrode active material for the rechargeable lithium battery prepared by the method, and a rechargeable lithium battery.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: October 11, 2016
    Assignee: POSCO CHEMTECH CO., LTD.
    Inventors: Mi Ryeong Lee, Heon Young Lee, Kyoung Muk Lee
  • Publication number: 20150017525
    Abstract: Disclosed is a method for preparing an electrode active material for a rechargeable lithium battery, including: performing first mixing to mix a carbon-based active material with a low crystalline carbon material; performing second mixing to mix the mixture of the carbon-based active material and the low crystalline carbon material with a ceramic; and performing a heat treatment, an electrode for a rechargeable lithium battery including the electrode active material for the rechargeable lithium battery prepared by the method, and a rechargeable lithium battery.
    Type: Application
    Filed: October 29, 2013
    Publication date: January 15, 2015
    Applicant: POSCO CHEMTECH CO., LTD.
    Inventors: Mi Ryeong LEE, Heon Young Lee, Kyoung Muk Lee
  • Publication number: 20150017524
    Abstract: Disclosed is an electrode active material for a rechargeable lithium battery, including: a core part including a carbon-based active material; and a coating layer disposed on a surface of the core portion to include a ceramic, wherein the surface of the core part is subjected to coating with a low crystalline carbon material, a method for preparing the same, an electrode including the same, and a rechargeable lithium battery including the electrode.
    Type: Application
    Filed: October 29, 2013
    Publication date: January 15, 2015
    Applicant: POSCO CHEMTECH CO., LTD.
    Inventors: Mi Ryeong Lee, Heon Young Lee, Kyoung Muk Lee, Hyun Ki Choi
  • Publication number: 20150017527
    Abstract: The present invention relates to a negative electrode active material for a rechargeable lithium battery, a method for preparing the same, and a rechargeable lithium battery using the same, and provides a negative electrode active material for a rechargeable lithium battery of a carbon-metal complex or a mixture type, containing a carbon-based active material including a first ceramic coating layer, a metal-based active material or a metal-base active material including a first ceramic coating layer, and a carbon-based active material.
    Type: Application
    Filed: November 15, 2013
    Publication date: January 15, 2015
    Applicant: POSCO CHEMTECH CO., LTD.
    Inventors: Kyoung Muk LEE, Heon Young LEE, Mi Ryeong LEE, Eun Byeol HYEONG
  • Patent number: 6937304
    Abstract: An array substrate for a transflective liquid crystal display device, including a substrate; at least one gate line and at least one gate electrode formed on the transparent substrate; a gate-insulating layer formed over the at least one gate line and the at least one gate electrode; a silicon layer formed on the gate-insulating layer, the silicon layer being positioned above the at least one gate electrode; a source electrode and a drain electrode formed on the silicon layer and spaced apart from each other with the silicon layer overlapped therebetween, wherein the at least one gate electrode, the source electrode, the drain electrode, and the silicon layer define a thin film transistor (TFT); at least one data line; a first passivation layer covering the at least one data line; a transparent electrode formed on the first passivation layer; and a reflective electrode formed on the transparent electrode.
    Type: Grant
    Filed: July 17, 2003
    Date of Patent: August 30, 2005
    Assignee: LG. Phillips LCD Co., Ltd.
    Inventors: Kyoung-Su Ha, Yong-In Park, Oh-Nam Kwon, Woong-Kwon Kim, Jae-Beom Choi, Kyoung-Muk Lee
  • Publication number: 20040075782
    Abstract: An array substrate for a transflective liquid crystal display device, including a substrate; at least one gate line and at least one gate electrode formed on the transparent substrate; a gate-insulating layer formed over the at least one gate line and the at least one gate electrode; a silicon layer formed on the gate-insulating layer, the silicon layer being positioned above the at least one gate electrode; a source electrode and a drain electrode formed on the silicon layer and spaced apart from each other with the silicon layer overlapped therebetween, wherein the at least one gate electrode, the source electrode, the drain electrode, and the silicon layer define a thin film transistor (TFT); at least one data line; a first passivation layer covering the at least one data line; a transparent electrode formed on the first passivation layer; and a reflective electrode formed on the transparent electrode.
    Type: Application
    Filed: July 17, 2003
    Publication date: April 22, 2004
    Inventors: Kyoung-Su Ha, Yong-In Park, Oh-Nam Kwon, Woong-Kwon Kim, Jae-Beom Choi, Kyoung-Muk Lee
  • Patent number: 6620655
    Abstract: An array substrate for a transflective liquid crystal display device, including a substrate; at least one gate line and at least one gate electrode formed on the transparent substrate; a gate-insulating layer formed over the at least one gate line and the at least one gate electrode; a silicon layer formed on the gate-insulating layer, the silicon layer being positioned above the at least one gate electrode; a source electrode and a drain electrode formed on the silicon layer and spaced apart from each other with the silicon layer overlapped therebetween, wherein the at least one gate electrode, the source electrode, the drain electrode, and the silicon layer define a thin film transistor (TFT); at least one data line; a first passivation layer covering the at least one data line; a transparent electrode formed on the first passivation layer; and a reflective electrode formed on the transparent electrode.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: September 16, 2003
    Assignee: LG.Phillips LCD Co., Ltd.
    Inventors: Kyoung-Su Ha, Yong-In Park, Oh-Nam Kwon, Woong-Kwon Kim, Jae-Beom Choi, Kyoung-Muk Lee
  • Publication number: 20020105604
    Abstract: An array substrate for a transflective liquid crystal display device, including a substrate; at least one gate line and at least one gate electrode formed on the transparent substrate; a gate-insulating layer formed over the at least one gate line and the at least one gate electrode; a silicon layer formed on the gate-insulating layer, the silicon layer being positioned above the at least one gate electrode; a source electrode and a drain electrode formed on the silicon layer and spaced apart from each other with the silicon layer overlapped therebetween, wherein the at least one gate electrode, the source electrode, the drain electrode, and the silicon layer define a thin film transistor (TFT); at least one data line; a first passivation layer covering the at least one data line; a transparent electrode formed on the first passivation layer; and a reflective electrode formed on the transparent electrode.
    Type: Application
    Filed: October 31, 2001
    Publication date: August 8, 2002
    Inventors: Kyoung-Su Ha, Yong-In Park, Oh-Nam Kwon, Woong-Kwon Kim, Jae-Beom Choi, Kyoung-Muk Lee