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.

Date of Patent:
Apr. 16, 2013

Filed:

Jun. 19, 2009
Applicants:

Tetsuya Sakai, Toyokawa, JP;

Masahiro Kouzaki, Toyohashi, JP;

Shigeki Naiki, Toyokawa, JP;

Inventors:

Tetsuya Sakai, Toyokawa, JP;

Masahiro Kouzaki, Toyohashi, JP;

Shigeki Naiki, Toyokawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/40 (2006.01); H04N 1/04 (2006.01); G06K 15/00 (2006.01); G06K 9/40 (2006.01); G03G 15/043 (2006.01); G03G 15/00 (2006.01); G03G 15/01 (2006.01); G03G 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

There are provided an image reader with high resolution capability for images in a high density range and an image forming apparatus. An image readercomprises a reflected light reading unit () for irradiating a surface to be read of an original sheet with a light and reading the amount of the reflected light and a transmitted light reading unit () for irradiating the original sheet with a light and reading the amount of the transmitted light, and calculates the density of an image of the original sheet based on the amount of the reflected light read by the reflected light reading unit and the amount of the transmitted light read by the transmitted light reading unit.


Find Patent Forward Citations

Loading…