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:
Jun. 15, 1999
Filed:
Oct. 16, 1996
Koichi Sato, Tokyo, JP;
Yasuhiro Yamamoto, Tokyo, JP;
Tahei Morisawa, Tokyo, JP;
Masato Okabe, Tokyo, JP;
Hironori Kamiyama, Tokyo, JP;
Osamu Shimizu, Tokyo, JP;
Yuudai Yamashita, Tokyo, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Abstract
An image reader to optically and electronically read a developed image of an electro-developing recording medium, where the electro-developing recording medium has a reference zone exhibiting a substantially-constant transparency. An optical sensor senses light rays passing through the reference zone, and converts the sensed light rays into optical data. Correction data is prepared based on the optical data. Image data is read from the developed image of the electro-developing recording medium according to the correction data. The correction data is updated whenever the image data is read from the developed image of the electro-developing recording medium. The electro-developing recording medium includes an electrostatic information recording medium and an electric charge keeping medium, and the electric charge keeping medium has a reference zone exhibiting a constant transparency.