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. 02, 2018
Filed:
Sep. 15, 2011
Naohiro Watanabe, Shizuoka, JP;
Tsuyoshi Sugimoto, Shizuoka, JP;
Mamoru Hozumi, Miyagi, JP;
Tomoyuki Sato, Kanagawa, JP;
Shinya Hanatani, Shizuoka, JP;
Naohiro Watanabe, Shizuoka, JP;
Tsuyoshi Sugimoto, Shizuoka, JP;
Mamoru Hozumi, Miyagi, JP;
Tomoyuki Sato, Kanagawa, JP;
Shinya Hanatani, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
To provide a toner, containing: a binder resin; a colorant; a releasing agent; and a crystalline polyester resin, wherein the toner satisfies the following formulae (1) to (3): 40° C.≦X≦55° C. Formula (1) 85° C.≦Y≦92° C. Formula (2) 35° C.≦Y−X≦50° C. Formula (3) where X is an onset temperature and Y is an endset temperature of an endothermic peak on a differential scanning calorimetry (DSC) curve of the toner as measured by a differential scanning calorimeter (DSC).