Patents by Inventor Kohzo Ishio

Kohzo Ishio 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).

  • Electrophotographic photoreceptor
    Patent number: 5389481
    Abstract: An electrophotographic photoreceptor comprising an electrically conductive substrate and a photosensitive layer formed thereon, wherein said photosensitive layer contains an arylamine compound of the following formula (I): ##STR1## wherein X is a hydrogen atom or a group of the formula (II): ##STR2## Y is a group of the formula (III) or (IV):--O--A.sup.1 --O-- (III)--A.sup.2 --O--A.sup.3 -- (IV)wherein, the substituents are defined hereafter.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: February 14, 1995
    Assignee: Mitsubishi Kasei Corporation
    Inventors: Atsuo Saita, Shuichi Maeda, Kohzo Ishio, Hitoshi Ono, Tetsuo Murayama