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. 03, 2015
Filed:
Nov. 28, 2012
Canon Kabushiki Kaisha, Tokyo, JP;
Atsushi Tani, Suntou-gun, JP;
Toshifumi Mori, Tokyo, JP;
Takaaki Kaya, Suntou-gun, JP;
Tetsuya Kinumatsu, Mishima, JP;
Kenji Aoki, Mishima, JP;
Shuntaro Watanabe, Hadano, JP;
Yoshihiro Nakagawa, Numazu, JP;
Takashige Kasuya, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A toner having good low-temperature fixability, charge stability, environmental stability, and durability and capable of stably producing high-quality images for a long time is provided. The toner includes a toner particle having a core-shell structure constituted of a core and a shell phase. The core contains a binder resin, a colorant, and wax, and the shell phase contains a resin A. The resin A is a comb polymer including a main chain portion (X), a side chain portion (Y), and a side chain portion (Z). The main chain portion (X) is a vinyl polymer, the side chain portion (Y) has an aliphatic polyester structure and has an ester group concentration of a polyester segment of 6.5 mmol/g or less, and the side chain portion (Z) has an organic polysiloxane structure and has an average number of Si—O bond repeating units of a siloxane segment of 2 or more and 100 or less.