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:
Jan. 19, 2016
Filed:
Sep. 12, 2013
Daisuke Asahina, Shizuoka, JP;
Hiroshi Yamashita, Shizuoka, JP;
Masana Shiba, Shizuoka, JP;
Tsuyoshi Sugimoto, Shizuoka, JP;
Yukari Fukuda, Kanagawa, JP;
Rintaro Takahashi, Kanagawa, JP;
Daisuke Asahina, Shizuoka, JP;
Hiroshi Yamashita, Shizuoka, JP;
Masana Shiba, Shizuoka, JP;
Tsuyoshi Sugimoto, Shizuoka, JP;
Yukari Fukuda, Kanagawa, JP;
Rintaro Takahashi, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
To provide a toner, which contains a colorant, a binder resin, and a releasing agent, wherein the toner satisfies the following (a) to (c): (a) the toner contains at least a polyester resin as the binder resin; (b) the toner has Tg1st of 25° C. to 50° C.; and (c) the toner has a TMA compressive deformation rate (TMA %) of 10% or lower at 50° C. under a condition having relative humidity of 70%, wherein the Tg1st is glass transition temperature of the toner for first heating, as the toner is measured by a DSC system (a differential scanning calorimeter).