Patents by Inventor Ji Yoon CHO

Ji Yoon CHO 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).

  • Polarizing plate and optical display including the same
    Patent number: 11994652
    Abstract: A polarizing plate and an optical display including the same are provided. The polarizing plate is composed of a display region and a non-display region surrounding the display region, and includes: a polarizer; and a bonding layer and a first polarizer protective film sequentially stacked on an upper surface of the polarizer. A light shielding layer includes a UV absorbent material and is embedded in the bonding layer to constitute at least a portion of the non-display region. The light shielding layer is formed on at least one surface of the first polarizer protective film.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 28, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji Hyun Hwang, Yoo Jin Kim, Jin Woo Kim, Dong Yoon Shin, Bae Wook Lee, Sung Man Cho
  • Phosphonium compound, preparation method thereof, epoxy resin composition including the same, and semiconductor device prepared by using the same
    Patent number: 9896465
    Abstract: A phosphonium compound, a method of preparing the same, an epoxy resin composition including the same, and a semiconductor device encapsulated with the same, the compound being represented by Formula 1:
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: February 20, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Dong Hwan Lee, Min Gyum Kim, So Yoon Kim, Woo Chul Na, Yoon Man Lee, Ji Yoon Cho, Ki Hyeok Kwon, KyoungChul Bae, Eun Jung Lee, Joo Young Chung, Jin Min Cheon, Jin Woo Choi, Seung Han
  • PHOSPHONIUM COMPOUND, PREPARATION METHOD THEREOF, EPOXY RESIN COMPOSITION INCLUDING THE SAME, AND SEMICONDUCTOR DEVICE PREPARED BY USING THE SAME
    Publication number: 20160368937
    Abstract: A phosphonium compound, a method of preparing the same, an epoxy resin composition including the same, and a semiconductor device encapsulated with the same, the compound being represented by Formula 1:
    Type: Application
    Filed: June 22, 2016
    Publication date: December 22, 2016
    Inventors: Dong Hwan LEE, Min Gyum KIM, So Yoon KIM, Woo Chul NA, Yoon Man LEE, Ji Yoon CHO, Ki Hyeok KWON, KyoungChul BAE, Eun Jung LEE, Joo Young CHUNG, Jin Min CHEON, Jin Woo CHOI, Seung HAN