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:
Mar. 23, 2010
Filed:
Dec. 12, 2005
Etsuko Sugawa, Atsugi, JP;
Chieko Mihara, Isehara, JP;
Takashi Kenmoku, Fujisawa, JP;
Tatsuki Fukui, Yokohama, JP;
Shinya Kozaki, Tokyo, JP;
Tsutomu Honma, Tokyo, JP;
Tetsuya Yano, Atsugi, JP;
Shigeki Yoshida, Tokyo, JP;
Etsuko Sugawa, Atsugi, JP;
Chieko Mihara, Isehara, JP;
Takashi Kenmoku, Fujisawa, JP;
Tatsuki Fukui, Yokohama, JP;
Shinya Kozaki, Tokyo, JP;
Tsutomu Honma, Tokyo, JP;
Tetsuya Yano, Atsugi, JP;
Shigeki Yoshida, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
To provide a toner for developing electrostatic images which is not easily cause the phenomenon of toner-spent, constituent materials are so selected that a charge control resin has hardness which is the same as the hardness of a binder resin or the charge control resin is harder than the binder resin, as measured with a scanning probe microscope in a viscoelasticity evaluation mode in respect to the binder resin and the charge control resin which are present in the particle interiors or particle surfaces of the toner.