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. 14, 2006
Filed:
Sep. 08, 2004
Hiroaki Kawakami, Kanagawa, JP;
Fumihiro Arahira, Shizuoka, JP;
Masayuki Hama, Shizuoka, JP;
Noriyoshi Umeda, Shizuoka, JP;
Hiroaki Kawakami, Kanagawa, JP;
Fumihiro Arahira, Shizuoka, JP;
Masayuki Hama, Shizuoka, JP;
Noriyoshi Umeda, Shizuoka, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
In a toner having toner particles which have toner base particles having at least a colorant and a binder resin, and an inorganic fine powder; the inorganic fine powder has a primary-particle average particle diameter of from 30 nm to 300 nm, and has particles having at least one of a cubic particle shape, a cube-like particle shape, a rectangular particle shape and a rectangle-like particle shape and having perovskite type crystals; and the inorganic fine powder has particles and agglomerates both having particle diameters of 600 nm or more, in a content of 0% to 1% by number.