Patents by Inventor Seong Geun Hwang

Seong Geun 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).

  • Method for manufacturing polarizing plate
    Patent number: 11975500
    Abstract: Provided is a method for manufacturing a polarizing plate, comprising a step of irradiating an optical laminate with ultraviolet rays having an emission wavelength band of 380 nm to 410 nm. The optical laminate sequentially comprises a first base film, a first adhesive layer, a linear polarizer, a second adhesive layer, a second base film and a reverse dispersion liquid crystal layer. The first adhesive layer and the second adhesive layer each comprise a photosensitizer for initiating a curing reaction in a wavelength band of 350 nm to 410 nm, and the ultraviolet rays are irradiated on the first base film side of the optical laminate.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: May 7, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Young Sik Kim, Jin Yong Park, Yeon Ok Jung, Min Woo Hwang, Jung Geun Kwon, Yong Su Ju, Chan Youn Kim, Ji Hoon Park, Seong Min Lim
  • Method for copying flash memory with duplexed processor board
    Patent number: 6072726
    Abstract: The present invention discloses a method for copying flash memories of multiple processor boards without the need of a separate copying device. Particularly, the present invention discloses a system with a duplex processor boards and inserting the flash memories onto the processor boards. Afterwards, the program is loaded into the flash memory of one processor and transferred to the flash memory of the other processor.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: June 6, 2000
    Assignee: LG Information & Communications, Ltd.
    Inventors: Seong Geun Hwang, Kum Young Lee