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:
Apr. 12, 2016
Filed:
Mar. 26, 2015
Canon Kabushiki Kaisha, Tokyo, JP;
Shuntaro Watanabe, Hadano, JP;
Takaaki Kaya, Suntou-gun, JP;
Toshifumi Mori, Tokyo, JP;
Kenji Aoki, Mishima, JP;
Tetsuya Kinumatsu, Mishima, JP;
Yusuke Kosaki, Susono, JP;
Atsushi Tani, Suntou-gun, JP;
Takashige Kasuya, Numazu, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner has toner particles containing a binder resin that comprises a block polymer as a main component, obtained by chemically bonding a crystalline polyester resin with an amorphous polyurethane resin, wherein the binder resin has a specific content of a crystalline polyester resin component, and has a concentration of ester bonds derived from the crystalline polyester resin component of not more than 5.2 mmol/g, and The maximum value Eof the flexural elasticity modulus E in a three-point bending test on the toner and the strain energy u for the toner satisfy specific values.