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:
Jul. 13, 2021
Filed:
Feb. 18, 2020
Yuka Mizoguchi, Shizuoka, JP;
Ryota Inoue, Shizuoka, JP;
Hiroshi Yamashita, Shizuoka, JP;
Minoru Masuda, Shizuoka, JP;
Daichi Hisakuni, Shizuoka, JP;
Tomomi Harashima, Kanagawa, JP;
Yuka Mizoguchi, Shizuoka, JP;
Ryota Inoue, Shizuoka, JP;
Hiroshi Yamashita, Shizuoka, JP;
Minoru Masuda, Shizuoka, JP;
Daichi Hisakuni, Shizuoka, JP;
Tomomi Harashima, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner including: a plate-shaped pigment containing a metal as a main component; and a binder resin containing polyester resin (A) that is insoluble in THF, wherein: a weight average molecular weight (Mw) of a tetrahydrofuran (THF)-soluble component of the toner as determined by gel permeation chromatography (GPC) is 5,000 or higher but 14,000 or lower; and a glass transition temperature (Tg) of a THF-insoluble component of the toner as determined from a differential scanning colorimetry (DSC) curve at first heating in DSC is −60° C. or higher but 10° C. or lower.