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. 03, 1992
Filed:
Nov. 07, 1991
Mineto Yagyu, Sagamihara, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There is provided an image reading apparatus comprising: an opaque layer formed on a transparent insulative substrate; an insulative layer arranged on the opaque layer; photoelectric converting elements arranged on the insulative layer; and a transparent insulative protective layer formed on the photoelectric converting elements. The transparent insulative protective layer is formed as a multilayer structure and has a transparent conductive layer or an opaque conductive layer having a window which is sandwiched by the transparent insulative protective layer. With this apparatus, the transparent conductive layer does not directly come into contact with the surface of an original, so that the conductive layer is not abraded by the rubbing by the paper. An inconvenience due to the generation of the electrostatic charges is fairly eliminated. The reliability is increased.