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:
Mar. 03, 1998
Filed:
Dec. 28, 1993
Toshio Hayashi, Kawasaki, JP;
Hiroshi Tanioka, Yokohama, JP;
Shinobu Arimoto, Yokohama, JP;
Kazuo Yoshinaga, Machida, JP;
Takehiko Nakai, Tokyo, JP;
Tsutomu Utagawa, Yokohama, JP;
Tetsuya Nagase, Kawasaki, JP;
Nobuatsu Sasanuma, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To properly cut light except for visible light and improve read precision, there is provided an image reading apparatus having a plurality of photoelectric conversion elements. The image reading apparatus includes an image information detecting unit in which the photoelectric conversion elements are arranged on a single chip, a first light-shielding unit, arranged near the photoelectric conversion elements, for transmitting specific visible light, and a second light-shielding unit, arranged near the photoelectric conversion elements at a position different from that of the first light-shielding unit, for partially shielding light except for the visible light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile