Invention Grant
- Patent Title: Toner, image forming apparatus, image forming method, and process cartridge
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Application No.: US15327700Application Date: 2015-07-17
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Publication No.: US10061220B2Publication Date: 2018-08-28
- Inventor: Kohtaroh Ogino , Tohru Moriya , Tomomi Suzuki
- Applicant: Kohtaroh Ogino , Tohru Moriya , Tomomi Suzuki
- Applicant Address: JP Toyko
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Toyko
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2014-151060 20140724; JP2015-138675 20150710
- International Application: PCT/JP2015/003608 WO 20150717
- International Announcement: WO2016/013187 WO 20160128
- Main IPC: G03G9/097
- IPC: G03G9/097 ; G03G9/087 ; G03G9/09 ; G03G15/08

Abstract:
A toner, containing: a binder resin; and kaolinite, wherein the toner has a molecular weight distribution having a main peak in a range of 1,000 to 10,000, and a half value width of the main peak is 8,000 to 30,000, where the molecular weight distribution is obtained by gel permeation chromatography (GPC) of THF soluble matter of the toner, and wherein the toner contains the kaolinite in an amount of 5% by mass to 35% by mass.
Public/Granted literature
- US20170212442A1 TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND PROCESS CARTRIDGE Public/Granted day:2017-07-27
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