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. 13, 2011
Filed:
Apr. 30, 2008
Akiyoshi Sabu, Numazu, JP;
Akihiro Kotsugai, Numazu, JP;
Shinya Nakayama, Numazu, JP;
Hiroshi Yamashita, Numazu, JP;
Tsuyoshi Sugimoto, Mishima, JP;
Hiroshi Yamada, Numazu, JP;
Junichi Awamura, Numazu, JP;
Akiyoshi Sabu, Numazu, JP;
Akihiro Kotsugai, Numazu, JP;
Shinya Nakayama, Numazu, JP;
Hiroshi Yamashita, Numazu, JP;
Tsuyoshi Sugimoto, Mishima, JP;
Hiroshi Yamada, Numazu, JP;
Junichi Awamura, Numazu, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
To provide a toner produced by emulsifying or dispersing in an aqueous medium particles containing at least polyester resin particles and by aggregating the polyester resin particles, wherein the polyester resin particles contain a polyester resin, the polyester resin is produced by condensation polymerization of an alcohol component containing 65 mol % or more 1,2-propanediol in a dihydroxy alcohol component and a carboxylic acid component containing purified rosin, and the softening point of the polyester resin is 80° C. or more and less than 120° C., and wherein the toner comprises a colorant and a releasing agent.