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:
Dec. 21, 2010
Filed:
May. 30, 2007
Takakuni Kobori, Toride, JP;
Kenji Okado, Ushiku, JP;
Masami Fujimoto, Sunto-gun, JP;
Katsuhisa Yamazaki, Numazu, JP;
Syuhei Moribe, Numazu, JP;
Daisuke Yoshiba, Sunto-gun, JP;
Takakuni Kobori, Toride, JP;
Kenji Okado, Ushiku, JP;
Masami Fujimoto, Sunto-gun, JP;
Katsuhisa Yamazaki, Numazu, JP;
Syuhei Moribe, Numazu, JP;
Daisuke Yoshiba, Sunto-gun, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide a developer and an image forming method with each of which a high-resolution, high-definition image can be stably obtained over a long time period irrespective of an environment. The present invention provides a developer including at least: toner particles each containing at least a binder resin; and a composite inorganic fine powder, the developer being characterized in that: the composite inorganic fine powder has a peak at a Bragg angle (2θ±0.20 deg) of each of 32.20 deg, 25.80 deg, and 27.50 deg in a CuKα characteristic X-ray diffraction pattern; and the half width of the X-ray diffraction peak at a Bragg angle (2θ±0.20 deg) of 32.20 deg is 0.20 to 0.30 deg.