Toner, toner stored unit, and image forming apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10025213
APP PUB NO 20180031992A1
SERIAL NO

15557362

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Abstract

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A toner including a binder resin, wherein the toner includes a tetrahydrofuran (THF)-insoluble component in a range of from 10% by mass through 40% by mass, wherein the toner has a main peak in a range of from 12,000 through 18,000 in a molecular weight distribution of a THF-soluble component as measured by gel permeation chromatography (GPC), wherein the main peak has a half value width in a range of from 20,000 to 50,000, and wherein the toner includes a component having a molecular weight of 2,000 or less in a range of from 10.0% by mass through 20.0% by mass and a component having a molecular weight of 100,000 or more of 8.0% by mass or less.

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Patent Owner(s)

Patent OwnerAddress
RICOH COMPANY LTDTOKYO

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kitada, Naoko Kanagawa, JP 3 2
Ogawa, Satoshi Nara, JP 195 1906
Seki, Masahiro Shizuoka, JP 35 248
Sekiguchi, Yoshitaka Shizuoka, JP 58 782

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