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:
Mar. 21, 2006
Filed:
Aug. 18, 2003
Yuka Miyamoto, Shizuoka, JP;
Toshiyuki Kabata, Kanagawa, JP;
Yuka Miyamoto, Shizuoka, JP;
Toshiyuki Kabata, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image forming apparatus contains a photoconductor having a support and a photoconductive layer disposed thereon. I(S) at the surface of the photoconductor and I(S) at the interface of the photoconductive layer on the support side are 5.0×10or less and the sum of I(S)s is 3.0×10or more. I(S)s are determined according to following Equations 2 and 3 after subjecting a group of data of N samples of height×(t) [μm] of a profile curve at the surface or of one at the interface to discrete Fourier transform according to following Equation 1, the N samples being taken at intervals of Δt [μm] in a reference line directionwherein n and m are each an integer; N is 2, where ρ is an integer