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:
Sep. 06, 2005
Filed:
Dec. 27, 2002
Masanori Suzuki, Shizuoka, JP;
Yohichiroh Watanabe, Shizuoka, JP;
Keiko Shiraishi, Shizuoka, JP;
Toyoshi Sawada, Kanagawa, JP;
Takuya Saito, Shizuoka, JP;
Masashi Nagayama, Shizuoka, JP;
Masanori Suzuki, Shizuoka, JP;
Yohichiroh Watanabe, Shizuoka, JP;
Keiko Shiraishi, Shizuoka, JP;
Toyoshi Sawada, Kanagawa, JP;
Takuya Saito, Shizuoka, JP;
Masashi Nagayama, Shizuoka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image-forming color toner contains at least a colorant, a resin (A), a modified resin (B) and a wax (a) as a mold releasing agent, the image-forming color toner having a phase separated structure comprising the modified resin (B) as a domain in the resin (A) as a continuous phase, and wax (a) being effectively contained the modified resin (B). The modified resin (B) has a wax part containing a wax component (b), and a modified part formed of a vinyl monomer unit and an average ester group concentration of 8% by weight to 30% by weight.