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:
Feb. 11, 1997
Filed:
May. 31, 1995
Atsushi Nishibata, Yokohama, JP;
Morikazu Mizutani, Kawasaki, JP;
Kazumi Sekine, Kawasaki, JP;
Tadayuki Tsuda, Kawasaki, JP;
Isao Ikemoto, Kawasaki, JP;
Kazushi Watanabe, Yokohama, JP;
Yoshikazu Sasago, Tokyo, JP;
Yasushi Shimizu, Tokyo, JP;
Shinya Noda, Yokohama, JP;
Kazunori Kobayashi, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A process cartridge removably mountable to an image forming apparatus includes an image bearing member having a photosensitive drum including a cylindrical member having a photosensitive layer thereon, a first gear provided at one end of the cylindrical member in an axial direction thereof, and a helical gear as a second gear provided at the one end of the cylindrical member adjacent to and outside of the first gear in the axial direction of the cylindrical member and having a diameter larger than a diameter of the first gear. The first gear and the helical gear are integrally formed as a gear portion having a through-bore portion with an inner diameter that varies along its axial length. Accordingly, the present invention provides a smoothly rotating image bearing member for producing high quality images.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile