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:
Nov. 05, 2019
Filed:
Jul. 02, 2018
Tetsuya Toshine, Shizuoka, JP;
Mitsuaki Hirose, Shizuoka, JP;
Tomoharu Asano, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
Provided is an electrophotographic photoconductor including: a conductive support; an undercoat layer; and a photoconductive layer, wherein the undercoat layer and the photoconductive layer are provided over the conductive support in the order of reciting, wherein the undercoat layer contains at least metal oxide particles, a binder, and a salicylic acid derivative such as 4-methylsalicylic acid, wherein the metal oxide particles have a volume resistivity of 1×10Ω·cm or higher but 1×10Ω·cm or lower, wherein the undercoat layer has a volume resistivity of 0.001×10Ω·cm or higher but 0.02×10Ω·cm or lower, and wherein the undercoat layer has a thickness of 2 micrometers or greater but 20 micrometers or less.