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:
May. 06, 2003
Filed:
Dec. 13, 2000
Applicant:
Inventors:
Takashi Rokutanzono, Tachikawa, JP;
Tamotsu Aruga, Mishima, JP;
Tatsuya Niimi, Numazu, JP;
Yoshiaki Kawasaki, Susono, JP;
Assignee:
Ricoh Company Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G 5/047 ;
U.S. Cl.
CPC ...
G03G 5/047 ;
Abstract
A photoreceptor including an electroconductive substrate and a photosensitive layer which is formed on the electroconductive substrate and which includes a charge generation material, wherein the charge generation material comprises an organic pigment and wherein the photosensitive layer further includes at least one ion selected from the group consisting of K , Na , NO , HCOO , NO , Cl , Br , and NH or one or more water-soluble inorganic salts.