Invention Grant
US08017292B2 Toner, as well as image forming apparatus and image forming method using the same
有权
调色剂，以及使用其的图像形成装置和图像形成方法
- Patent Title: Toner, as well as image forming apparatus and image forming method using the same
- Patent Title (中): 调色剂，以及使用其的图像形成装置和图像形成方法
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Application No.: US12112601Application Date: 2008-04-30
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Publication No.: US08017292B2Publication Date: 2011-09-13
- Inventor: Akiyoshi Sabu , Akihiro Kotsugai , Shinya Nakayama , Hiroshi Yamashita , Tsuyoshi Sugimoto , Hiroshi Yamada , Junichi Awamura
- Applicant: Akiyoshi Sabu , Akihiro Kotsugai , Shinya Nakayama , Hiroshi Yamashita , Tsuyoshi Sugimoto , Hiroshi Yamada , Junichi Awamura
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-127410 20070511
- Main IPC: G03G9/087
- IPC: G03G9/087
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.
Public/Granted literature
- US20080280218A1 TONER, AS WELL AS IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD USING THE SAME Public/Granted day:2008-11-13
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