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. 01, 2015
Filed:
Dec. 28, 2012
Ryuuta Yoshida, Miyagi, JP;
Takahiro Honda, Shizuoka, JP;
Junichi Awamura, Shizuoka, JP;
Osamu Uchinokura, Shizuoka, JP;
Masaki Watanabe, Shizuoka, JP;
Daisuke Inoue, Shizuoka, JP;
Tomoki Murayama, Miyagi, JP;
Mamoru Hozumi, Miyagi, JP;
Ryuuta Yoshida, Miyagi, JP;
Takahiro Honda, Shizuoka, JP;
Junichi Awamura, Shizuoka, JP;
Osamu Uchinokura, Shizuoka, JP;
Masaki Watanabe, Shizuoka, JP;
Daisuke Inoue, Shizuoka, JP;
Tomoki Murayama, Miyagi, JP;
Mamoru Hozumi, Miyagi, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A toner including: a binder resin containing a non-crystalline resin and a crystalline resin; a colorant; and, a releasing agent, wherein the releasing agent has a melting point of 55° C. to 80° C., and wherein the toner satisfies the following Expressions 1 and 2: (Expression 1): 20,000 Pa·s≦G≦50,000 Pa·s; and (Expression 2): (G/G)/(G/G) 1.00, where Gis a storage modulus, Gis a loss modulus, Gis a storage modulus and Gis a loss modulus, and the storage modulus Gand the loss modulus Gare measured at 80° C. when the toner is heated from 70° C. to 150° C. and the storage modulus Gand the loss modulus Gare measured at 80° C. when the toner heated to 150° C. is cooled to 70° C.