发明授权
US08999501B2 Urethane foam member, seal structure, toner storage container, process cartridge, image forming apparatus
有权
聚氨酯泡沫构件，密封结构，调色剂储存容器，处理盒，成像装置
- 专利标题： Urethane foam member, seal structure, toner storage container, process cartridge, image forming apparatus
- 专利标题（中）： 聚氨酯泡沫构件，密封结构，调色剂储存容器，处理盒，成像装置
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申请号： US12277626申请日： 2008-11-25
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公开(公告)号： US08999501B2公开(公告)日： 2015-04-07
- 发明人: Takaya Muraishi , Satoshi Hatori , Kaoru Yoshino , Norio Yamagami , Etsuo Kakizaki
- 申请人： Takaya Muraishi , Satoshi Hatori , Kaoru Yoshino , Norio Yamagami , Etsuo Kakizaki
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Ricoh Company, Ltd,Bridgestone Corporation
- 当前专利权人： Ricoh Company, Ltd,Bridgestone Corporation
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2007-311139 20071130; JP2008-279153 20081030
- 主分类号： B32B7/12
- IPC分类号： B32B7/12 ; G03G15/08 ; B32B5/14
摘要：
A urethane foam member that after cutting into the desired shape from sheet urethane foam is applied with adhesive on one face of the urethane foam, an edge portion of the non-adhesive applied face at least at one side of the urethane foam member being of a low edge profile, to which permanent thermal distortion has been induced such that the thickness of the edge portion of the side is thinnest at the end portion thereof and the thickness gradually increases with distance from the end portion.