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:
Jun. 22, 2010
Filed:
Aug. 05, 2008
Applicants:
Koji Inaba, Hadano, JP;
Kazumi Yoshizaki, Suntou-gun, JP;
Yasushi Katsuta, Suntou-gun, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 9/087 (2006.01);
U.S. Cl.
CPC ...
Abstract
To achieve improvements in developing performance, transferring performance, and fixing performance, a toner has a glass transition temperature (TgA) of 40 to 60° C. and a temperature (P1) of the highest peak of 70 to 120° C.; cyclohexane (CHX) insoluble matter in the tetrahydrofuran (THF) soluble matter of the toner has a glass transition temperature (TgB) of 80 to 120° C.; TgA and TgB satisfy a specific formula; the toner has a viscosity at 100° C. of 5,000 to 30,000 Pa·s; and the cyclohexane (CHX) insoluble matter has an acid value of 5 to 40 mgKOH/g.