Electrophotographic film
专利汇可以提供Electrophotographic film专利检索，专利查询，专利分析的服务。并且PURPOSE: To improve flawproofness and prevent occurrence of defects such as fog and white spots on the copy, by forming a photoconductive layer on the surface of a base film in which the number of protrusions showing the interference fringe measured by the multiple interference method at measuring wavelength of 0.54μ is defined in a specified range.
CONSTITUTION: In an electrophotographic film of plain paper copy (PPC) system, a conductive layer (Al layer or the like) is provided on a base film 4 of plastic material (such as polyester) of which sum of the number of protrusions about 0.5μ in height showing secondary interference fringe and the number of protrusions (about 0.8μ in height) showing the tertiary interference fringe by measuring the surface of film by the multiple interference method at the measuring wavelength of 0.54μ is more than 30/mm
2 and number of protrusions showing the interference fringe of fifth order or higher (about 1.4μ or more in height) is 0, and an organic photoconductive layer of preferably poly-N-vinyl carbazole is provided thereon. As for the film having protrusions, a biaxially oriented film or the like having amorphous SiO
2 or the like added to polyethylene terephthalate may be used.
COPYRIGHT: (C)1980,JPO&Japio，下面是Electrophotographic film专利的具体信息内容。
| 标题 | 发布/更新时间 | 阅读量 |
|---|---|---|
| 一种纸币防伪线检测装置 | 2020-05-08 | 709 |
| 组合全息技术防伪标识及其制作方法 | 2020-05-08 | 974 |
| 所述打印文档防伪溯源系统及方法 | 2020-05-12 | 88 |
| 一种防伪检测摩托车贴花 | 2020-05-08 | 420 |
| 一种全息图彩色可变二维码防伪瓶盖装置标识 | 2020-05-11 | 653 |
| 一种射频标签防伪系统 | 2020-05-12 | 723 |
| 一种热缩膜易碎防伪标 | 2020-05-13 | 304 |
| 防伪标签和防伪包装物 | 2020-05-11 | 892 |
| 一种光变颗粒与二维码对应的防伪标签 | 2020-05-12 | 959 |
| 一种防伪标签结构 | 2020-05-11 | 812 |
高效检索全球专利专利汇是专利免费检索,专利查询,专利分析-国家发明专利查询检索分析平台，是提供专利分析，专利查询，专利检索等数据服务功能的知识产权数据服务商。
我们的产品包含105个国家的1.26亿组数据，免费查、免费专利分析。
专利汇分析报告产品可以对行业情报数据进行梳理分析，涉及维度包括行业专利基本状况分析、地域分析、技术分析、发明人分析、申请人分析、专利权人分析、失效分析、核心专利分析、法律分析、研发重点分析、企业专利处境分析、技术处境分析、专利寿命分析、企业定位分析、引证分析等超过60个分析角度，系统通过AI智能系统对图表进行解读，只需1分钟，一键生成行业专利分析报告。
