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:
Dec. 01, 2020
Filed:
Jan. 28, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Koki Inoue, Numazu, JP;
Takeshi Tsujino, Mishima, JP;
Yasuhiro Hashimoto, Mishima, JP;
Junya Asaoka, Mishima, JP;
Yuu Sasano, Susono, JP;
Kenta Katayama, Kashiwa, JP;
Shota Amano, Yokohama, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner has a toner particle including a binder resin, a colorant, and a wax, in which in a cross section of the toner particle observed under a scanning transmission electron microscope, a proportion of the number of toner particles having a void with a long diameter of 0.50 μm or less is 60 number % or more, and a proportion of the number of toner particles having a void in a region from an outline of the cross section of the toner particle inward to 1.00 μm in a total number of the toner particles having a void is 30 number % or less.