Invention Grant
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
- Patent Title: Toner for electrophotography, developer, image forming method, and process cartridge
- Patent Title (中): 电子照相用调色剂，显影剂，成像方法和处理盒
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Application No.: US13680274Application Date: 2012-11-19
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Publication No.: US08852834B2Publication Date: 2014-10-07
- Inventor: Hideyuki Santo , Shinya Nakayama , Atsushi Yamamoto , Daiki Yamashita , Suzuka Amemori
- Applicant: Hideyuki Santo , Shinya Nakayama , Atsushi Yamamoto , Daiki Yamashita , Suzuka Amemori
- 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: JP2011-263686 20111201; JP2012-222561 20121004
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/087 ; G03G9/09 ; G03G13/20
Abstract:
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.
Public/Granted literature
- US20130143155A1 TONER FOR ELECTROPHOTOGRAPHY, DEVELOPER, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE Public/Granted day:2013-06-06
Information query
