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:
Aug. 20, 2013
Filed:
Dec. 17, 2010
Takahito Fuse, Toride, JP;
Takehiro Kojima, Cambridge, GB;
Takahito Fuse, Toride, JP;
Takehiro Kojima, Cambridge, GB;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A high-density area of a low-reflectance patch image is accurately detected. There is an image forming apparatus that detects the density of a patch image by radiating light from a laser oscillatorand receiving reflected light reflected off the patch image using a line sensor. The density of a black patch imagehaving a low reflectance is detected from the difference between the position at which reflected light from a yellow patch imageis received and the position at which reflected light from a superimposed toner image that is transferred in such a manner that the yellow patch imageis superimposed on the top of the black patch imageis received.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile