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. 21, 2011
Filed:
Nov. 18, 2009
Masahiro Maeda, Matsumoto, JP;
Yoichi Yamada, Shiojiri, JP;
Yoshiyuki Kurebayashi, Shiojiri, JP;
Daisuke Matsumoto, Matsumoto, JP;
Masaru Kobashi, Matsumoto, JP;
Takatomo Fukumoto, Shiojiri, JP;
Masahiro Maeda, Matsumoto, JP;
Yoichi Yamada, Shiojiri, JP;
Yoshiyuki Kurebayashi, Shiojiri, JP;
Daisuke Matsumoto, Matsumoto, JP;
Masaru Kobashi, Matsumoto, JP;
Takatomo Fukumoto, Shiojiri, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
Provided is a development device including: a development roller in which continuous spiraling inclined grooves having different inclinations with respect to an axial direction are formed so as to cross each other; and a feed roller which is in contact with the development roller and feeds toner to the development roller, wherein transportation force, which is used for transporting the toner on the development roller from one side to the other side of the axial direction of the development roller, is generated by the rotation of the feed roller.