会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Roller for use with image forming apparatus
    • 滚筒用于成像设备
    • US08045903B2
    • 2011-10-25
    • US12431843
    • 2009-04-29
    • Junpei ShounoYohei NakadeIchiro Demizu
    • Junpei ShounoYohei NakadeIchiro Demizu
    • G03G15/08
    • G03G15/0818G03G15/0896
    • A developing device of an electrophotographic image forming apparatus has a first roller and a second roller disposed in a peripheral contact with the first roller to define a contact region therebetween so that the first roller is capable of supplying and collecting a toner to and from the second roller in the contact region. The first roller has a core and a polyurethane foam layer. The polyurethane foam has an open ratio of cells of 2% or more and 50% or less and a hardness of 1 gf/mm or more and 6 gf/mm or less, the hardness being defined by a load per unit length in a longitudinal direction of the first roller, the load being determined by forcing the peripheral surface of the polyurethane foam layer against a substrate, measuring a load necessary for the polyurethane foam layer to be compressed by 30% in thickness, and dividing the load by a length of the polyurethane foam layer in the longitudinal direction. The first and second rollers are disposed so that the contact region has a peripheral width of 3 mm or more and 8 mm or less.
    • 电子照相图像形成装置的显影装置具有第一辊和第二辊,该第一辊和第二辊设置成与第一辊周边接触以限定其间的接触区域,使得第一辊能够向第二辊和第二辊供应和从第二辊收集调色剂 辊在接触区域。 第一辊具有芯和聚氨酯泡沫层。 聚氨酯泡沫的开孔率为2%以上且50%以下,硬度为1gf / mm以上且6gf / mm以下,硬度由纵向的每单位长度的负荷 第一辊的方向,负载通过将聚氨酯泡沫层的外围表面强制抵抗基材而确定,测量要压缩的聚氨酯泡沫层所需的负载厚度为30%,并将负载除以长度 聚氨酯泡沫层在纵向上。 第一和第二辊被布置成使得接触区域的周边宽度为3mm以上且8mm以下。
    • 3. 发明申请
    • ROLLER FOR USE WITH IMAGE FORMING APPARATUS
    • 滚筒与图像形成装置一起使用
    • US20090279923A1
    • 2009-11-12
    • US12431843
    • 2009-04-29
    • Junpei ShounoYohei NakadeIchiro Demizu
    • Junpei ShounoYohei NakadeIchiro Demizu
    • G03G15/08
    • G03G15/0818G03G15/0896
    • A developing device of an electrophotographic image forming apparatus has a first roller and a second roller disposed in a peripheral contact with the first roller to define a contact region therebetween so that the first roller is capable of supplying and collecting a toner to and from the second roller in the contact region. The first roller has a core and a polyurethane foam layer. The polyurethane foam has an open ratio of cells of 2% or more and 50% or less and a hardness of 1 gf/mm or more and 6 gf/mm or less, the hardness being defined by a load per unit length in a longitudinal direction of the first roller, the load being determined by forcing the peripheral surface of the polyurethane foam layer against a substrate, measuring a load necessary for the polyurethane foam layer to be compressed by 30% in thickness, and dividing the load by a length of the polyurethane foam layer in the longitudinal direction. The first and second rollers are disposed so that the contact region has a peripheral width of 3 mm or more and 8 mm or less.
    • 电子照相图像形成装置的显影装置具有第一辊和第二辊,该第一辊和第二辊设置成与第一辊周边接触以限定其间的接触区域,使得第一辊能够向第二辊和第二辊供应和从第二辊收集调色剂 辊在接触区域。 第一辊具有芯和聚氨酯泡沫层。 聚氨酯泡沫的开孔率为2%以上且50%以下,硬度为1gf / mm以上且6gf / mm以下,硬度由纵向的每单位长度的负荷 第一辊的方向,负载通过将聚氨酯泡沫层的外围表面强制抵抗基材而确定,测量要压缩的聚氨酯泡沫层所需的负载厚度为30%,并将负载除以长度 聚氨酯泡沫层在纵向上。 第一和第二辊被布置成使得接触区域的周边宽度为3mm以上且8mm以下。