Patents by Inventor Hae-ree Joo

Hae-ree Joo 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).

  • Positively-charged electrophotographic organophotoreceptor, and cartridge, drum and image forming apparatus having same
    Publication number: 20030170555
    Abstract: A composition for a charge generating layer of a positively-charged electrophotographic organophotoreceptor and the positively-charged electrophotographic organophotoreceptor having a charge generating layer formed using the composition are utilized in a photocopy apparatus/organophotoreceptor drum/organophotoreceptor cartridge and a method of manufacturing the positively-charged electrophotographic organophotoreceptor. The charge generating layer composition for the positively-charged electrophotographic organophotoreceptor, which has a charge transport layer and a charge generating layer sequentially coated on a conductive support, includes a charge generating material, a binder, and an organic solvent containing an alcoholic solvent and an acetate solvent in a ratio from 1:9 to 5:5 by weight.
    Type: Application
    Filed: January 27, 2003
    Publication date: September 11, 2003
    Applicant: Samsung Electronics Co., Ltd
    Inventors: Nam-Jeong Lee, Hwan-Koo Lee, Saburo Yokota, Kyung-Yol Yon, Hae-Ree Joo