Patents by Inventor Myounglae Kim

Myounglae Kim 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).

  • Optical film
    Patent number: 8597551
    Abstract: Provided is an optical film using a cellulose derivative, which is used in image display devices such as liquid-crystal display devices. A liquid-crystal display device with a polarizing plate using the optical film has an excellent viewing angle property. More particularly, the present invention relates to an optical film made of a cellulose ester resin, a portion of hydrogen atoms of hydroxyl groups of which is substituted with two or more substituent groups.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: December 3, 2013
    Assignee: SK Innovation Co., Ltd.
    Inventors: Kiyup Kim, Yonggyun Cho, Sangyeup Lee, Wonyeob Kim, Wonseok Jang, Myounglae Kim
  • Optical Film
    Publication number: 20120161086
    Abstract: Provided is an optical film using a cellulose derivative, which is used in image display devices such as liquid-crystal display devices. A liquid-crystal display device with a polarizing plate using the optical film has an excellent viewing angle property. More particularly, the present invention relates to an optical film made of a cellulose ester resin, a portion of hydrogen atoms of hydroxyl groups of which is substituted with two or more substituent groups.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 28, 2012
    Applicant: SK INNOVATION CO., LTD.
    Inventors: Kiyup Kim, Yonggyun Cho, Sangyeup Lee, Wonyeob Kim, Wonseok Jang, Myounglae Kim
  • Cellulose Acetate Film
    Publication number: 20110114901
    Abstract: Provided is a cellulose acetate film for optical compensation, which has a low retardation value Rth in the film thickness direction.
    Type: Application
    Filed: July 8, 2009
    Publication date: May 19, 2011
    Applicant: SK ENERGY CO., LTD.
    Inventors: Kinam Chung, Myounglae Kim, Jeeyoung Ahn, Hyukjun Kim, Wonseok Jang
  • Cellulose Acetate Film
    Publication number: 20110108780
    Abstract: Provided is a cellulose acetate film for optical compensation, which has a low retardation value Rth in the film thickness direction.
    Type: Application
    Filed: July 8, 2009
    Publication date: May 12, 2011
    Applicant: SK ENERGY CO., LTD.
    Inventors: Kinam Chung, Myounglae Kim, Jeeyoung Ahn, Hyukjun Kim, Wonseok Jang