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:
Aug. 26, 2003
Filed:
Sep. 03, 1998
Akira Hashimoto, Numazu, JP;
Tsutomu Kukimoto, Yokohama, JP;
Manabu Ohno, Numazu, JP;
Tsuyoshi Takiguchi, Shizuoka-ken, JP;
Yasukazu Ayaki, Numazu, JP;
Satoshi Handa, Shizuoka-ken, JP;
Masanori Ito, Numazu, JP;
Keiji Komoto, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A toner is comprised of a binder resin, a colorant and a wax. The binder resin has a polycarbonate resin in an amount of from 0.1% by weight to 50.0% by weight and a resin other than the polycarbonate resin in an amount of from 50.0% by weight to 99.9% by weight, based on the weight of the binder resin. In molecular weight distribution as measured by gel permeation chromatography of tetrahydrofuran-soluble matter, the toner contains in an amount of 15.0% by weight or less based on the weight of the toner a component which has in its structure a repeating unit of the polycarbonate resin and is contained in components having a molecular weight of 1,000 or less.