The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 1989
Filed:
Nov. 24, 1987
Applicant:
Inventors:
Masakazu Takata, Hirakata, JP;
Takamasa Ueda, Ibaraki, JP;
Kimiyuki Ito, Kawanishi, JP;
Tsuneaki Hirashima, Sakai, JP;
Souichi Yamamoto, Yao, JP;
Yoshio Ishino, Kyoto, JP;
Toshinobu Ohno, Moriguchi, JP;
Assignees:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Osaka Municipal Government, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 58 ; 430 76 ; 430 77 ;
Abstract
The present invention uses an azo pigment having in the center of an N-oxide heterocyclic structure as a photoelectrical charge-generating material. The pigments are excellent in dispersion stability in a dispersed solution, and enable the provision of a photosensitive member excellent in sensitivity properties.