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. 30, 2019
Filed:
Jan. 06, 2015
Hisashi Nakajima, Shizuoka, JP;
Kazumi Suzuki, Shizuoka, JP;
Masashi Nagayama, Shizuoka, JP;
Saori Yamada, Shizuoka, JP;
Yoshitaka Yamauchi, Shizuoka, JP;
Yu Naito, Shizuoka, JP;
Yoshitaka Sekiguchi, Hyogo, JP;
Hisashi Nakajima, Shizuoka, JP;
Kazumi Suzuki, Shizuoka, JP;
Masashi Nagayama, Shizuoka, JP;
Saori Yamada, Shizuoka, JP;
Yoshitaka Yamauchi, Shizuoka, JP;
Yu Naito, Shizuoka, JP;
Yoshitaka Sekiguchi, Hyogo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner for electrophotography, which contains a binder resin, and a release agent, wherein a maximum value of loss tangent of the toner at 95° C. to 115° C. is 8 or greater, as a viscoelasticity of the toner is measured, where the loss tangent is represented by the following formula: Loss tangent (tan δ)=loss elastic modulus (G″)/storage elastic modulus (G').