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. 18, 2014
Filed:
Nov. 06, 2008
Satoshi Handa, Saitama, JP;
Naoya Isono, Susono, JP;
Katsuyuki Nonaka, Mishima, JP;
Koji Abe, Numazu, JP;
Yasuhiro Hashimoto, Mishima, JP;
Akira Sugiyama, Mishima, JP;
Yuhei Terui, Numazu, JP;
Satoshi Handa, Saitama, JP;
Naoya Isono, Susono, JP;
Katsuyuki Nonaka, Mishima, JP;
Koji Abe, Numazu, JP;
Yasuhiro Hashimoto, Mishima, JP;
Akira Sugiyama, Mishima, JP;
Yuhei Terui, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A toner which has i) toner base particles containing at least a binder resin and a colorant and ii) a fatty acid metal salt composition as an external additive. The fatty acid metal salt composition contains a nonionic surface-active agent and a fatty acid metal salt. This toner and an image forming process making use of the toner can keep the toner from adhering to a toner carrying member throughout running, promise a stable chargeability of the toner and can keep any deterioration of halftone image quality from being caused by excess charging of the toner and any image fog from being caused by insufficient charging of the toner.