发明授权
US08852834B2 Toner for electrophotography, developer, image forming method, and process cartridge
有权
电子照相用调色剂，显影剂，成像方法和处理盒
- 专利标题： Toner for electrophotography, developer, image forming method, and process cartridge
- 专利标题（中）： 电子照相用调色剂，显影剂，成像方法和处理盒
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申请号： US13680274申请日： 2012-11-19
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公开(公告)号： US08852834B2公开(公告)日： 2014-10-07
- 发明人: Hideyuki Santo , Shinya Nakayama , Atsushi Yamamoto , Daiki Yamashita , Suzuka Amemori
- 申请人： Hideyuki Santo , Shinya Nakayama , Atsushi Yamamoto , Daiki Yamashita , Suzuka Amemori
- 申请人地址： JP Tokyo
- 专利权人： Ricoh Company, Ltd.
- 当前专利权人： Ricoh Company, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2011-263686 20111201; JP2012-222561 20121004
- 主分类号： G03G9/08
- IPC分类号： G03G9/08 ; G03G9/087 ; G03G9/09 ; G03G13/20
摘要：
To provide a toner, including: a crystalline binder resin including a urethane bond or a urea bond, or both thereof; and a colorant, wherein the colorant has a number-average particle diameter of 0.5 μm or less, and a ratio of particles having a particle diameter of 0.7 μm or greater in a number-size distribution of the colorant is 5% by number or less.
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