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. 19, 2021
Filed:
Oct. 29, 2020
Satoshi Nakayama, Kanagawa, JP;
Susumu Mikajiri, Tokyo, JP;
Hideyo Makino, Tokyo, JP;
Yoshinari Onuma, Ibaraki, JP;
Kimiharu Yamazaki, Kanagawa, JP;
Kohta Aoyagi, Kanagawa, JP;
Satoshi Nakayama, Kanagawa, JP;
Susumu Mikajiri, Tokyo, JP;
Hideyo Makino, Tokyo, JP;
Yoshinari Onuma, Ibaraki, JP;
Kimiharu Yamazaki, Kanagawa, JP;
Kohta Aoyagi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image reading device includes a background member, an illumination unit opposed to the background member, and a reader. The illumination unit emits light to a recording medium having an image thereon. The reader receives a reflection from the recording medium to read the image. The background member has a facing surface that faces the recording medium. The facing surface includes a reference portion on a center portion in a width direction of the background member. The reference portion has a higher reflectance than an end portion of the facing surface in the width direction.