Patents by Inventor Yong Gou LEE

Yong Gou 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).

  • Manufacturing method of optical film and optical film
    Patent number: 10611109
    Abstract: Provided is a manufacturing method of an optical film, which manufactures an optical film in which at least a first film and a second film are stacked, the method including: pressing the first film and the second film with the optical film by passing both the first film and the second film between a pair of pressing rolls; forming a slit line in a width direction of the optical film by cutting the second film without cutting the first film at a rear end of a connection portion when the connection portion is included, to which a unit film is connected by a connection member between the first film and the second film which are pressed in the pressing; and conveying the optical film by passing the optical film with the slit line in the slit forming between a pair of conveying rolls.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: April 7, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Jeong Hwan Lee, Yun Seok Choe, Joo Sang Kim, Do Won Yang, Yong Gou Lee, Bong Su Jeung, Jea Han Ryoo
  • MANUFACTURING METHOD OF OPTICAL FILM AND OPTICAL FILM
    Publication number: 20170368772
    Abstract: Provided is a manufacturing method of an optical film, which manufactures an optical film in which at least a first film and a second film are stacked, the method including: pressing the first film and the second film with the optical film by passing both the first film and the second film between a pair of pressing rolls; forming a slit line in a width direction of the optical film by cutting the second film without cutting the first film at a rear end of a connection portion when the connection portion is included, to which a unit film is connected by a connection member between the first film and the second film which are pressed in the pressing; and conveying the optical film by passing the optical film with the slit line in the slit forming between a pair of conveying rolls.
    Type: Application
    Filed: June 21, 2017
    Publication date: December 28, 2017
    Inventors: Jeong Hwan LEE, Yun Seok CHOE, Joo Sang KIM, Do Won YANG, Yong Gou LEE, Bong Su JEUNG, Jea Han RYOO