Patents by Inventor Tomomi Edo

Tomomi Edo 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 photosensitive material with ozone inhibitor
    Patent number: 4524118
    Abstract: Electrophotographic photosensitive material comprising an electroconductive substrate and a layer of a photoconductive composition composed of a dispersion of a charge generating pigment in a charge transporting medium, which is formed on the electroconductive substrate, wherein said photoconductive composition contains an N,N-di-substituted-carbamic acid salt in an amount of 20 to 200% by weight based on the charge generating pigment. This electrophotographic electrophotosensitive material has excellent ozone resistance and shows a high initial charge retention ratio and sensitivity retention ratio when the cycle of charging and light exposure is repeated many times.
    Type: Grant
    Filed: June 17, 1983
    Date of Patent: June 18, 1985
    Assignee: Mita Industrial Co., Ltd.
    Inventors: Kaname Nakatani, Nobuhiro Miyakawa, Teruaki Higashiguchi, Tomomi Edo