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:
Aug. 21, 2018
Filed:
Jan. 04, 2016
Tomoki Murayama, Kanagawa, JP;
Ryota Inoue, Shizuoka, JP;
Masana Shiba, Shizuoka, JP;
Daisuke Inoue, Shizuoka, JP;
Junichi Awamura, Shizuoka, JP;
Yoshitsugu Kimura, Kanagawa, JP;
Rintaro Takahashi, Kanagawa, JP;
Tomoki Murayama, Kanagawa, JP;
Ryota Inoue, Shizuoka, JP;
Masana Shiba, Shizuoka, JP;
Daisuke Inoue, Shizuoka, JP;
Junichi Awamura, Shizuoka, JP;
Yoshitsugu Kimura, Kanagawa, JP;
Rintaro Takahashi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner including a binder resin, wherein a toner extract obtained by drying an extraction liquid obtained through Soxhlet extraction of the toner with tetrahydrofuran (THF) has glass transition temperature Tg in a range of from 35° C. through 55° C., and a moisture-content change rate of the toner extract before and after leaving the toner extract to stand for 3 days in an environment of 40° C. and 70% RH is 0.5% or less, and wherein a specific-surface-area change rate of the toner before and after leaving the toner to stand for 3 days in an environment of 40° C. and 70% RH is in a range of from 15% through 50%.