Invention Grant
- Patent Title: Toner, developer, and image forming apparatus
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Application No.: US16031490Application Date: 2018-07-10
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Publication No.: US10670980B2Publication Date: 2020-06-02
- Inventor: Koh Ohnuma , Tsuyoshi Sugimoto , Shinya Nakayama , Hideyuki Santo , Shin Hasegawa , Suzuka Karato , Kohsuke Nagata
- Applicant: Koh Ohnuma , Tsuyoshi Sugimoto , Shinya Nakayama , Hideyuki Santo , Shin Hasegawa , Suzuka Karato , Kohsuke Nagata
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@721d9dc0
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/087 ; G03G15/08 ; G03G15/20

Abstract:
Provided is a toner including a crystalline polyester resin including a constitutional unit derived from saturated aliphatic dicarboxylic acid and a constitutional unit derived from saturated aliphatic diol, an amorphous hybrid resin, an amorphous polyester resin, a release agent, and a colorant, wherein the crystalline polyester resin includes a constitutional unit derived from sebacic acid as the constitutional unit derived from the saturated aliphatic dicarboxylic acid, and the amorphous hybrid resin is a composite resin including a polyester-based resin unit and a styrene-based resin unit.
Public/Granted literature
- US20180321606A1 TONER, DEVELOPER, AND IMAGE FORMING APPARATUS Public/Granted day:2018-11-08
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