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. 20, 2014
Filed:
Feb. 24, 2012
Saori Yamada, Shizuoka, JP;
Mitsuo Aoki, Shizuoka, JP;
Hisashi Nakajima, Shizuoka, JP;
Masashi Nagayama, Shizuoka, JP;
Shigenori Yaguchi, Shizuoka, JP;
Saori Yamada, Shizuoka, JP;
Mitsuo Aoki, Shizuoka, JP;
Hisashi Nakajima, Shizuoka, JP;
Masashi Nagayama, Shizuoka, JP;
Shigenori Yaguchi, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner including a binder resin, a colorant, and a release agent is provided. The toner has a peak loss tangent (tan δ) value of 3 or more within a temperature range of 80 to 160° C. Here, the loss tangent (tan δ) is a ratio (G″/G') of a loss elastic modulus (G″) to a storage elastic modulus (G′). The toner provides a good combination of low-temperature fixability, hot offset resistance, storage stability, coloring power and/or opacifying power, and gloss.