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. 27, 2001
Filed:
May. 11, 1998
Hitoshi Watanabe, Inashiki-gun, JP;
Hiroshi Hanzawa, Inashiki-gun, JP;
Riso Kagaku Corporation, Tokyo, JP;
Abstract
In a reflection type image reader having a stage glass on which an original is placed with its image facing downward to be read out by a photoelectric image reading head from the lower side so as to be converted into an electric signal, in order to make it, easy to position the original relative to the stage glass, an original positioning sheet, bearing an original positioning reference mark is placed on the stage glass in a fixed positional relationship thereto, with the original being placed between the stage glass and the original positioning sheet with its image facing downward, while a light source for original positioning is provided below the stage glass to illuminate the original from its front side, so that the image observable by the light passed through the original is referred to against the reference mark of the original positioning sheet.