Patents by Inventor Beouj-jun Kim

Beouj-jun 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).

  • Single layered electrophotographic photoreceptor
    Publication number: 20040063017
    Abstract: A single layered electrophotographic photoreceptor has a photoreceptor layer comprising polyester resin as a binder resin having biphenyl fluorene units in the main chain, and specific phenolic compounds as antioxidants. The electrophotographic photoreceptor according to the present invention enables obtaining a better image by suppressing a decrease in dark decay and charged electric potential due to repeated use and has an extended electrical lifetime.
    Type: Application
    Filed: July 14, 2003
    Publication date: April 1, 2004
    Applicant: SAMSUNG Electronics Co., Ltd
    Inventors: Hwan koo Lee, Saburu Yokota, Kyung-yol Yon, Beouj-jun Kim, Hae-ree Joo, Nam-Jeong Lee