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:
Dec. 01, 1992
Filed:
Jul. 02, 1991
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 58 ; 430 66 ; 430 67 ;
Abstract
A photosensitive body has an electrically conductive substrate, and a photoconductive film formed on the substrate. A multiple optical film is formed on the photosensitive layer. The multiple optical film allows permeation of light beams in specific wavelength. Further, a diamond-like carbon film is formed on the multiple optical film. The diamond-like carbon film has thickness of at least 1,500.ANG. and Noop hardness of at least 1,000 kg/mm.sup.2. The multiple optical film and the diamond-like carbon film are provided in order to improve resistance against wear, ozone, and light.