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:
Aug. 28, 2007
Filed:
Nov. 12, 2004
Katsuya Nagamochi, Tokyo, JP;
Yoshikatsu Kamisuwa, Tokyo, JP;
Katsuya Nagamochi, Tokyo, JP;
Yoshikatsu Kamisuwa, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
The residual potential and charging potential of the surface of a photosensitive drum, or the charging potential and exposure potential of the surface of the photosensitive drumare detected by an exposure sensor. The lifetime of the photosensitive drumis judged in accordance with the difference between the detected charging potential and residual potential, or the difference between the detected charging potential and exposure potential.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile