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
    • 61. 发明授权
    • Two-component developer
    • 双组分显影剂
    • US09034551B2
    • 2015-05-19
    • US12864447
    • 2009-03-10
    • Tomoko EndoKoh IshigamiNaoki OkamotoYoshinobu Baba
    • Tomoko EndoKoh IshigamiNaoki OkamotoYoshinobu Baba
    • G03G9/107G03G9/08G03G9/10G03G9/113
    • G03G9/107G03G9/0819G03G9/0827G03G9/10G03G9/1075G03G9/113G03G9/1133
    • Provided is a two-component developer containing: a magnetic carrier obtained by coating a magnetic core with a resin; and toner, in which: the magnetic core contains at least a ferrite component and at least one kind of an oxide selected from the group consisting of SiO2 and Al2O3; the content of the oxide is 4.0 mass % or more and 40.0 mass % or less with respect to the magnetic core; the magnetic core has a specific resistance of 5.0×104 Ω·cm or more and 5.0×108 Ω·cm or less at the time of the application of 1,000 V/cm; the magnetic carrier has an intensity of magnetization in 79.6 kA/m of 40.0 Am2/kg or more and 65.0 Am2/kg or less, and a residual magnetization after the application of an external magnetic field of 79.6 kA/m of 3.0 Am2/kg or less; and the toner has a weight-average particle diameter (D4) of 3.0 μm or more and 10.0 μm or less and an average circularity of 0.940 or more and 0.990 or less.
    • 提供了一种双组分显影剂,其包含:通过用树脂涂覆磁芯获得的磁性载体; 和调色剂,其中:所述磁芯至少包含铁氧体组分和至少一种选自SiO 2和Al 2 O 3的氧化物; 相对于磁芯,氧化物的含量为4.0质量%以上且40质量%以下。 磁芯在施加1000V / cm时的电阻率为5.0×104&OHgr·cm以上5.0×10 8Ω·cm·cm以下。 磁性载体的强度为79.6kA / m,为40.0Am 2 / kg以上且65.0Am 2 / kg以下,在施加79.6kA / m 3的外部磁场后的剩余磁化强度为3.0Am 2 / kg 或更少; 调色剂的重均粒径(D4)为3.0μm以上且10.0μm以下,平均圆形度为0.940以上且0.990以下。
    • 64. 发明授权
    • Magnetic carrier, two-component developer, and developer for replenishment
    • 磁性载体,双组分显影剂和补充开发商
    • US08974994B2
    • 2015-03-10
    • US13752129
    • 2013-01-28
    • Canon Kabushiki Kaisha
    • Kentaro KamaeKoh IshigamiYoshinobu Baba
    • G03G9/08G03G9/107G03G9/113
    • G03G9/1075G03G9/1133G03G9/1139
    • Provided is a magnetic carrier satisfactory in terms of the suppression of leakage and solid carrier adhesion, charge-providing performance, and developability. The magnetic carrier is a magnetic carrier, including filled core particles of which pores of porous magnetic core particles are filled with a filling resin composition, and having a surface coated with a coating resin composition, in which the coating resin composition comprises a coating resin and a carbon black, an amount of the coating resin composition is 2.0 parts by mass or more and 5.0 parts by mass or less with respect to 100.0 parts by mass of the filled core particles; and a particle diameter of the carbon black in the coating resin composition Pv at a maximum frequency in a particle size distribution based on a volume of the carbon black is 1.0 μm or more and 10.0 μm or less.
    • 提供了在抑制泄漏和固体载体粘附,电荷提供性能和显影性方面令人满意的磁性载体。 磁性载体是磁性载体,包括填充的核心颗粒,其中多孔磁性核颗粒的孔被填充树脂组合物填充,并且具有涂覆有涂料树脂组合物的表面,其中涂料树脂组合物包含涂料树脂和 炭黑,相对于100.0质量份填充的芯颗粒,涂布树脂组合物的量为2.0质量份以上5.0质量份以下。 涂布树脂组合物Pv中的炭黑的粒径为基于炭黑的体积的粒径分布的最大频率为1.0μm以上且10.0μm以下。