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:
Dec. 04, 2012
Filed:
Mar. 20, 2009
Hirotoshi Tagawa, Osaka, JP;
Masahiro Higashitani, Osaka, JP;
Katsuhiko Okamoto, Osaka, JP;
Yasuyuki Horiguchi, Osaka, JP;
Kei Ouchi, Osaka, JP;
Sou Takahashi, Osaka, JP;
Hirotoshi Tagawa, Osaka, JP;
Masahiro Higashitani, Osaka, JP;
Katsuhiko Okamoto, Osaka, JP;
Yasuyuki Horiguchi, Osaka, JP;
Kei Ouchi, Osaka, JP;
Sou Takahashi, Osaka, JP;
Kyocera Document Solutions Inc., Osaka-Shi, Osaka, JP;
Abstract
An image reading device is provided. The image reading device suppresses uneven intensity of light emitted on a subject, by disposing a diffusion plate between the subject and a plurality of luminescence portions, and an image forming device that includes this image reading device. The image reading device includes an illumination portion that irradiates light onto a subject. The illumination portion includes: a plurality of LED's disposed at predetermined intervals in a main scanning direction; and an elliptical diffuser plate that is disposed between the subject and the plurality of LED's and diffuses light emitted by the plurality of LED's in a higher diffusion rate in the main scanning direction than in a sub-scanning direction.