Patents by Inventor Woo Taek Hwang

Woo Taek 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).

  • Positive Electrode Active Material Precursor, Method for Preparing the Same, Positive Electrode Active Material, and Method for Preparing Positive Electrode Active Material
    Publication number: 20250070149
    Abstract: A positive electrode active material precursor includes Ni and Mn and secondary particles formed by the aggregation of a plurality of primary particles. The secondary particles have a ratio of a core area to a total area of the particles ranging from 28.7% to 34.1%, and a porosity ranging from 11.3% to 11.7%. Also provided is a method for preparing the positive electrode active material precursor. Additionally, a positive electrode active material including a reaction product of the positive electrode active material precursor and a lithium raw material is provided. Also provided is a method for preparing a positive electrode active material using the positive electrode active material precursor.
    Type: Application
    Filed: August 17, 2023
    Publication date: February 27, 2025
    Applicant: LG Chem, Ltd.
    Inventors: Byung Hyun Hwang, Nam II Kim, Hyun Jin Jung, Chan Ju Beak, Hye Youn Hwang, Hyun Ah Park, Seong Hoon Kang, Won Taek Hong, Won Tae Kim, Woo Hyun Kim, Jun Gil Kim, Ju Han Yoon, Young Su Park
  • Super-hydrorepellent coating composition, super-hydrorepellent coating layer including cured product of the super-hydrorepellent coating composition, and heat exchanger including the super-hydrorepellent coating layer
    Patent number: 9505934
    Abstract: A super-hydrorepellent coating composition including a nano structure, polyorganosiloxane, a cross-linker, and a catalyst; a super-hydrorepellent coating layer including a cured product of the super-hydrorepellent coating composition; and a heat exchanger including the super-hydrorepellent coating layer.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: November 29, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Chul Ko, Woo-Taek Hwang, Ha-Jin Kim, Sang Eui Lee, Nak-Hyun Kim
  • Anti-fingerprint coating composition and film using the same
    Patent number: 9249338
    Abstract: Disclosed herein is an anti-fingerprint coating composition, a coating composition for forming thin films that prevents fingerprints adhered to displays or touch panels from being remarkably visible and exhibits superior durability and slip properties, and a method for preparing the same. The anti-fingerprint coating composition is prepared by mixing a silane compound having an alkyl group with distilled water or acid.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: February 2, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Ha Park, In Oh Hwang, Cheol Ham, Ki Yong Song, Soo-Jin Park, Sung Jun Park, Woo Taek Hwang, Myung Gon Kim, Seung Taek Oh, Saim Saher
  • SUPER-HYDROREPELLENT COATING COMPOSITION, SUPER-HYDROREPELLENT COATING LAYER INCLUDING CURED PRODUCT OF THE SUPER-HYDROREPELLENT COATING COMPOSITION, AND HEAT EXCHANGER INCLUDING THE SUPER-HYDROREPELLENT COATING LAYER
    Publication number: 20130112379
    Abstract: A super-hydrorepellent coating composition including a nano structure, polyorganosiloxane, a cross-linker, and a catalyst; a super-hydrorepellent coating layer including a cured product of the super-hydrorepellent coating composition; and a heat exchanger including the super-hydrorepellent coating layer.
    Type: Application
    Filed: April 22, 2011
    Publication date: May 9, 2013
    Inventors: Young-Chul Ko, Woo-Taek Hwang, Ha-Jin Kim, Sang Eui Lee, Nak-Hyun Kim
  • ANTI-FINGERPRINT COATING COMPOSITION AND FILM USING THE SAME
    Publication number: 20130025503
    Abstract: Disclosed herein is an anti-fingerprint coating composition, a coating composition for forming thin films that prevents fingerprints adhered to displays or touch panels from being remarkably visible and exhibits superior durability and slip properties, and a method for preparing the same. The anti-fingerprint coating composition is prepared by mixing a silane compound having an alkyl group with distilled water or acid.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung Ha Park, In Oh Hwang, Cheol Ham, Ki Yong Song, Soo-Jin Park, Sung Jun Park, Woo Taek Hwang, Myung Gon Kim, Seung Taek Oh, Saim Saher