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:
Jan. 22, 2013
Filed:
Aug. 18, 2009
Mitsuru Iioka, Saitama, JP;
Noribumi Sato, Saitama, JP;
Jun Koyatsu, Saitama, JP;
Kaoru Yamauchi, Saitama, JP;
Keiichi Okada, Saitama, JP;
Mitsuru Iioka, Saitama, JP;
Noribumi Sato, Saitama, JP;
Jun Koyatsu, Saitama, JP;
Kaoru Yamauchi, Saitama, JP;
Keiichi Okada, Saitama, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus includes: an image data forming unit that forms an image data which includes a first dot image to be visible by copying, a second dot image to be invisible by copying, a hidden text portion and the background portion; and an image forming unit that carries out image formation by using the image data formed by the image data forming unit, the first dot image has a first color and includes dots having a dot size increased by decreasing the number of lines of dots, the second dot image has a second color and includes dots having a dot size decreased by increasing the number of lines of dots, and the second dot image is stacked on the first dot image in at least one of a hidden text portion or a background portion.