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:
Jun. 07, 2011
Filed:
Sep. 10, 2007
Hiromi Tada, Numazu, JP;
Nozomu Tamoto, Numazu, JP;
Katsuichi Ohta, Mishima, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
There is provided an electrophotographic photoconductor containing a conductive substrate, and a photosensitive layer, disposed thereon, containing a charge transporting material having a triarylamine structure represented by General Formula 1, and wherein the photosensitive layer satisfies Mathematical Formula 1 when peak heights in raman scattering spectra of the triarylamine structure are measured at a wavenumber of 1,324±2 cmby a confocal raman spectroscopy using z-polarized light: where Ar, Ar, and Arare substituted or unsubstituted aromatic hydrocarbon groups, and Arand Ar, Arand Ar, and Arand Arare optionally combined to form heterocyclic rings, respectively,ε=≧1.1  Mathematical Formula 1where Irepresents the peak height in of the raman scattering spectrum obtained at a depth of 5 μm or more from the photosensitive layer surface and Irepresents the peak height in the raman scattering spectrum obtained at a depth of less than 5 μm from the photosensitive layer surface.