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:
Nov. 02, 1999
Filed:
Apr. 28, 1998
Satoshi Yoshida, Mishima, JP;
Tsutomu Kukimoto, Yokohama, JP;
Manabu Ohno, Numazu, JP;
Yasukazu Ayaki, Numazu, JP;
Satoshi Handa, Shizuoka-ken, JP;
Akira Hashimoto, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming method includes charging an image carrier for carrying an electrostatic latent image; forming an electrostatic latent image on the charged image carrier; developing the electrostatic latent image with a toner by contacting a toner layer on a surface of a toner carrier with a surface of the image carrier to form a toner image thereon; copying the toner image formed on the surface of the image carrier onto a copy medium; wherein the toner has toner particles containing at least a bonding resin, carbon black and an azo-based iron compound and inorganic fine powder; the carbon black having an average primary particles size within a range of from 25 to 80 nm; and the azo-based iron compound having a specific structure.