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. 22, 2011
Filed:
Jan. 13, 2009
Ayumu Murakami, Abiko, JP;
Shoko Magata, Toride, JP;
Takeshi Aoyama, Abiko, JP;
Yuichi Yamamoto, Toride, JP;
Takayuki Suga, Toride, JP;
Haruhisa Oshida, Abiko, JP;
Ayumu Murakami, Abiko, JP;
Shoko Magata, Toride, JP;
Takeshi Aoyama, Abiko, JP;
Yuichi Yamamoto, Toride, JP;
Takayuki Suga, Toride, JP;
Haruhisa Oshida, Abiko, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image scanning device including: a conveyance path which conveys originals; a first scanning means and a second scanning means which are placed such that they sandwich the conveyance path; and a white reference member used for adjusting the white levels of the scanning means; wherein at least one of the first scanning means, the second scanning means and the white reference member is movable; the first scanning means and the second scanning means can scan the same surface of said white reference member since the first scanning means or the second scanning means is moved or the white reference member is moved.