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:
May. 21, 2019
Filed:
Dec. 15, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Atsuhiko Ohmori, Yokohama, JP;
Shuhei Moribe, Mishima, JP;
Koji Nishikawa, Susono, JP;
Kosuke Fukudome, Tokyo, JP;
Daisuke Yoshiba, Suntou-gun, JP;
Hiroyuki Tomono, Numazu, JP;
Shotaro Nomura, Suntou-gun, JP;
Sho Kimura, Kashiwa, JP;
Tatsuya Saeki, Suntou-gun, JP;
Katsuhisa Yamazaki, Numazu, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A toner comprising a toner particle containing a resin and a colorant, wherein, with respect to a temperature-storage elastic modulus curve obtained by powder dynamic viscoelastic measurement on the toner, (I) the relative minimum values for the variation in the storage elastic modulus E' with respect to temperature T in the temperature range of at least 30° C. and not more than 180° C. have a relative minimum value of equal to or less than −1.00×10and the relative minimum value on the lowest temperature side is equal to or less than −1.00×10; (II) the storage elastic modulus E′ (50) of the toner at 50° C. is at least 1.00×10and not more than 9.00×10; and (III) for a storage elastic modulus E′ (120) of the toner at 120° C., E′ (50) and E′ (120) satisfy 1.50≤[E′ (50)]/[E′ (120)]≤3.00.