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:
Sep. 30, 2014
Filed:
Jan. 14, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Tetsuya Kinumatsu, Numazu, JP;
Atsushi Tani, Suntou-gun, JP;
Kenji Aoki, Mishima, JP;
Shuntaro Watanabe, Hadano, JP;
Takaaki Kaya, Suntou-gun, JP;
Ayako Okamoto, Wako, JP;
Yoshihiro Nakagawa, Numazu, JP;
Toshifumi Mori, Suntou-gun, JP;
Takashige Kasuya, Numazu, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Provided is a toner comprising toner particles, wherein each of the toner particles has a core-shell structure composed of a core and a shell phase formed on the core, the shell phase contains a resin (B), and the core contains a binder resin (A), a colorant and a wax, wherein the toner particles contain the resin (B) in a specific amount with respect to the core, and wherein the solubility parameter (SP value) of the binder resin (A) is denoted by SP(A), the SP value of the resin (B) is denoted by SP(B), the SP value of a repeating unit with the smallest SP value from among repeating units constituting the resin (B) is denoted by SP(C), and the SP value of the wax is denoted by SP(W), each of the SP(A), SP(B), SP(C) and SP(W) satisfy specific relationships.