Invention Grant
- Patent Title: Toner, developer, process cartridge, and image forming apparatus
- Patent Title (中): 调色剂，显影剂，处理盒和成像装置
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Application No.: US13565025Application Date: 2012-08-02
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Publication No.: US08828635B2Publication Date: 2014-09-09
- Inventor: Yoshihiro Moriya , Shinya Nakayama , Atsushi Yamamoto , Hideyuki Santo , Akiyoshi Sabu , Yukiko Nakajima , Daiki Yamashita
- Applicant: Yoshihiro Moriya , Shinya Nakayama , Atsushi Yamamoto , Hideyuki Santo , Akiyoshi Sabu , Yukiko Nakajima , Daiki Yamashita
- 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: JP2011-178040 20110816
- Main IPC: G03G9/093
- IPC: G03G9/093
Abstract:
A toner including a resin particle (C) is provided. The resin particle (C) includes a resin particle (B) and a resin particle (A). The resin particle (B) includes a resin (b). The resin particle (A) or covering layer (P) includes a resin (a). The resin particle (A) or covering layer (P) is adhered to a surface of the resin particle (B). The resin (a) is a polyester resin. The resin (a) has a total acid value of 15 to 36 mgKOH/g. The resin particle (A) or covering layer (P) has a surface acid value of 10 to 27 mgKOH/g.
Public/Granted literature
- US20130045442A1 TONER, DEVELOPER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS Public/Granted day:2013-02-21
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