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:
Oct. 08, 2013
Filed:
Mar. 08, 2011
Tasuku Kohara, Kanagawa, JP;
Kazuo Koike, Kanagawa, JP;
Kenichi Yamada, Kanagawa, JP;
Taisuke Omi, Kanagawa, JP;
Tsuyoshi Endoh, Kanagawa, JP;
Hiroshi Takeda, Chiba, JP;
Hiroki Tsuruoka, Kanagawa, JP;
Tasuku Kohara, Kanagawa, JP;
Kazuo Koike, Kanagawa, JP;
Kenichi Yamada, Kanagawa, JP;
Taisuke Omi, Kanagawa, JP;
Tsuyoshi Endoh, Kanagawa, JP;
Hiroshi Takeda, Chiba, JP;
Hiroki Tsuruoka, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image reading apparatus includes a contact glass having a light control glass part having transmittance changeable by an applied voltage; a scanner part reading an original placed on an original placement surface of the contact glass and outputting image data in a storage part; a projector part projecting image information onto the contact glass from a side opposite to the original placement surface; and a control part controlling the voltage applied to the light controlling glass part. When the scanner part is operated, the control part causes the transmittance of the contact glass to increase and the projector part stops projecting the image information, and when the scanner part is not operated, the control part causes the transmittance of the contact glass to decrease and the projector part projects the image data stored in the storage part onto the contact glass.