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:
Jun. 04, 2013
Filed:
Dec. 10, 2010
Yoshiaki Shiotari, Mishima, JP;
Kosuke Fukudome, Suntou-gun, JP;
Nozomu Komatsu, Mishima, JP;
Kunihiko Nakamura, Gotemba, JP;
Kentaro Kamae, Mishima, JP;
Hiroyuki Fujikawa, Yokohama, JP;
Koh Ishigami, Mishima, JP;
Takayuki Itakura, Mishima, JP;
Hironori Minagawa, Moriya, JP;
Yoshiaki Shiotari, Mishima, JP;
Kosuke Fukudome, Suntou-gun, JP;
Nozomu Komatsu, Mishima, JP;
Kunihiko Nakamura, Gotemba, JP;
Kentaro Kamae, Mishima, JP;
Hiroyuki Fujikawa, Yokohama, JP;
Koh Ishigami, Mishima, JP;
Takayuki Itakura, Mishima, JP;
Hironori Minagawa, Moriya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
It is an object of the present invention to provide a toner having the transfer efficiency and the cleanability in combination, exhibiting excellent stress resistance, and ensuring the low-temperature fixing. A toner characterized in that the average circularity of the above-described toner is 0.960 or more, and 0.985 or less, where the average circularity is analyzed by dividing particles having a circle equivalent diameter of 1.98 μm or more, and 200.00 μm or less, the number A of toners having a circularity of 0.990 or more, and 1.000 or less is 25.0 percent by the number or less, and the percentage of the number of particles B having a circle equivalent diameter of 0.50 μm or more, and 1.98 μm or less relative to the total particles of 0.50 μm or more, and 200.00 μm or less is 10.0 percent by the number or less.