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:
Dec. 16, 2014
Filed:
Oct. 13, 2011
Tomoyuki Sato, Kanagawa, JP;
Naohiro Watanabe, Shizuoka, JP;
Tsuyoshi Sugimoto, Shizuoka, JP;
Shinya Hanatani, Shizuoka, JP;
Mamoru Hozumi, Miyagi, JP;
Tomoyuki Sato, Kanagawa, JP;
Naohiro Watanabe, Shizuoka, JP;
Tsuyoshi Sugimoto, Shizuoka, JP;
Shinya Hanatani, Shizuoka, JP;
Mamoru Hozumi, Miyagi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner including base particles each containing a crystalline polyester and a non-crystalline polyester, wherein the toner has a glass transition temperature of 45° C. or higher where the glass transition temperature is determined from a DSC curve of the toner obtained in the first elevation of temperature thereof, and wherein the toner has a temperature width of 8° C. or lower where the temperature width is a temperature width at ⅓ the height of an endothermic peak attributed to the crystalline polyester in the DSC curve.