Developing roller, manufacturing method thereof, developing apparatus and image forming apparatus

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专利权人:

Junichi Suzuki

发明人:

Junichi Suzuki,Noboru Sakurai

申请号：

US11935946

公开号：

US08192339B2

申请日:

2007.11.06

申请国别(地区):

US

年份:

2012

代理人:

摘要：

A developing roller on a circumferential surface of which toner is held is provided. In the developing roller, intersecting first and second grooves are formed. Protrusion portions are disposed in areas surrounded by the first and second grooves. The protrusion portions have minute projections.

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中国工程科技知识中心

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http://www.ckcest.cn/home/