Patents by Inventor Jung Ho Jang

Jung Ho Jang 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: 11348799
    Abstract: The present invention relates to a method of manufacturing a mold for a diffraction grating light guide plate by using two mask films, the mold having first to fourth pattern portions provided on one surface thereof, and to a method of manufacturing a diffraction grating light guide plate.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 31, 2022
    Assignee: LG CHEM, LTD
    Inventors: Eun Kyu Her, Song Ho Jang, Chung Wan Kim, Bu Gon Shin, Jeong Ho Park, Jung Hwan Yoon, So Young Choo
  • Patent number: 11334200
    Abstract: Disclosed is a touch sensing device for implementing a high resolution, which decreases a touch sensing period of an active pen in one frame to increase a display period. The touch sensing device includes a touch driver transmitting an uplink signal to an active pen through a touch electrode provided in a display panel during a first touch sensing period included in one frame period, a touch sensing unit sensing a downlink signal transmitted from the active pen on the basis of a capacitance occurring between the active pen and the touch electrode to generate first sensing data during a plurality of second touch sensing periods included in the one frame period, and a touch controller calculating pen data and pen touch coordinates of the active pen on the basis of the first sensing data generated during the second touch sensing period.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: May 17, 2022
    Assignee: SILICON WORKS CO., LTD.
    Inventors: Jung Min Choi, Moon Ho Jang, Bang Sik Dong
  • Patent number: 11331869
    Abstract: The present invention relates to a method of manufacturing a mold substrate for a diffraction lattice light guide plate, and a method of manufacturing a diffraction lattice light guide plate.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: May 17, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Eun Kyu Her, Chung Wan Kim, Song Ho Jang, Bu Gon Shin, Jeong Ho Park, Jung Hwan Yoon, So Young Choo
  • Patent number: 11230703
    Abstract: The present invention relates to a recombinant microorganism for producing formic acid, which has a formate dehydrogenase 1 alpha subunit (FDH1?)-encoding endogenous gene deleted therefrom and an FDH1-encoding exogenous gene introduced thereinto, and a method for production of formic acid by using the microorganism.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: January 25, 2022
    Assignee: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yong Hwan Kim, Jung Ho Jang, Byoung Wook Jeon
  • Publication number: 20200095620
    Abstract: The present invention relates to a recombinant microorganism for producing formic acid, which has a formate dehydrogenase 1 alpha subunit (FDH1?)-encoding endogenous gene deleted therefrom and an FDH1-encoding exogenous gene introduced thereinto, and a method for production of formic acid by using the microorganism.
    Type: Application
    Filed: November 14, 2018
    Publication date: March 26, 2020
    Applicant: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Yong Hwan Kim, Jung Ho Jang, Byoung Wook Jeon
  • Patent number: 8133958
    Abstract: One aspect of the invention relates to a methacrylate resin prepared by suspension polymerization using a polyalkylacrylate-acrylic acid as a suspension stabilizer. The suspension stabilizer is used in an amount of about 0.05 to about 0.25 parts by weight per 100 parts by weight of a monomer mixture. Another aspect of the invention relates to a method for preparing a methacrylate resin, which comprises: preparing a mixture by mixing an initiator and a chain-transfer agent with a monomer mixture comprising at least about 50% by weight of alkyl methacrylate; and adding the mixture to an aqueous solution of polyalkylacrylate-acrylic acid to conduct suspension polymerization.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: March 13, 2012
    Assignee: Cheil Industries Inc.
    Inventors: Jae Hoon Jeong, Doo Han Ha, Jung Ho Jang
  • Publication number: 20080154008
    Abstract: One aspect of the invention relates to a methacrylate resin prepared by suspension polymerization using a polyalkylacrylate-acrylic acid as a suspension stabilizer. The suspension stabilizer is used in an amount of about 0.05 to about 0.25 parts by weight per 100 parts by weight of a monomer mixture. Another aspect of the invention relates to a method for preparing a methacrylate resin, which comprises: preparing a mixture by mixing an initiator and a chain-transfer agent with a monomer mixture comprising at least about 50% by weight of alkyl methacrylate; and adding the mixture to an aqueous solution of polyalkylacrylate-acrylic acid to conduct suspension polymerization.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 26, 2008
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jae Hoon JEONG, Doo Han HA, Jung Ho JANG