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    • 4. 发明授权
    • Developing apparatus for improving the durability of the latent image
holding member
    • 用于提高潜像保持构件的耐久性的显影装置
    • US5548382A
    • 1996-08-20
    • US355983
    • 1994-12-14
    • Makoto KoshiYukio NishioKazunori Hirose
    • Makoto KoshiYukio NishioKazunori Hirose
    • G03G15/08
    • G03G15/0812G03G15/0818G03G15/0898
    • A developing device using a one-component developer composed of toner particles, which includes a vessel for holding the developer, and a developing roller rotatably provided within the vessel so that a portion of the roller is exposed therefrom and faces a surface of an electrostatic latent image carrying body to form a developing area. During rotation of the roller, the toner particles are entrained by a surface of the roller to form a developer layer therearound, and are carried to the developing area for a development of an electrostatic latent image formed on the latent image carrying body. The roller and the latent image carrying body are reversely rotated such that the surfaces thereof move upward at the developing area. A blade member is provided within the vessel and is resiliently engaged with the roller for regulating a thickness of the developer layer, and is disposed below the roller to prevent a leakage of the toner particles from the vessel at an underside of the developing roller. The roller has an open-cell foam structure such that pore openings or porous cells thereof have a diameter which is at most twice the average diameter of the toner particles. The roller preferably has an Asker C-hardness of at most 50.degree..
    • 使用包括用于保持显影剂的容器的由调色剂颗粒组成的单组分显影剂的显影装置和可旋转地设置在容器内的显影辊,使得辊的一部分从其暴露并面对静电潜在的表面 图像携带体形成发展中的区域。 在辊的旋转期间,调色剂颗粒被辊的表面夹带以在其周围形成显影剂层,并且被携带到显影区域以显影形成在潜像载体上的静电潜像。 辊和潜影携带体反转,使得其表面在显影区域向上移动。 叶片构件设置在容器内并且与辊弹性地接合以调节显影剂层的厚度,并且设置在辊的下方,以防止调色剂颗粒在显影辊的下侧从容器泄漏。 辊具有开孔泡沫结构,使得其开孔或多孔孔的直径为调色剂颗粒的平均直径的至多两倍。 辊优选具有至多50°的Asker C-硬度。
    • 5. 发明授权
    • Image formation apparatus, developing device incorporated therein and
conductive rubber roller used therein
    • 图像形成装置,并入其中的显影装置和其中使用的导电橡胶辊
    • US5489974A
    • 1996-02-06
    • US445732
    • 1995-05-22
    • Hideki KamajiKazumi KawabataKazunori HiroseSadaaki YoshidaTakeshi Tanimoto
    • Hideki KamajiKazumi KawabataKazunori HiroseSadaaki YoshidaTakeshi Tanimoto
    • G03G13/08G03G15/08G03G15/16G03G15/06
    • G03G13/08G03G15/0806G03G15/0812G03G15/0818G03G15/1685G03G2215/0866
    • An electrostatic latent image formed on a photosensitive drum is electrostatically developed with a non-magnetic type developer, and is electrostatically transferred from the drum to a paper. The developer is composed of a toner component and a resin powder component, one component of which has a polarity opposite to that of an electric charge of the other component generated by triboelectrification therebetween. In the developing process, a conductive foam rubber developing roller is used, which includes a conductive tubular foam rubber roller element, and a metal shaft inserted into a central bore thereof. The roller element has an outer thicker portion including a conductive filler dispersed therein, and an inner solid skin layer defining the central bore thereof and exhibiting an electrical resistivity considerably higher than that of the thicker portion for lack of conductive filler. Nevertheless, a sufficient electrical contact is established between the roller element and the shaft. A thin metal blade is pressed against the roller for regulating the thickness of the developer entrained thereby, and is arranged to compensate for a resilient deformation of the shaft caused when pressing the blade against the roller.
    • 形成在感光鼓上的静电潜像用非磁性显影剂静电显影,并从鼓静电转印到纸上。 显影剂由调色剂组分和树脂粉末组分组成,其一种组分具有与通过其摩擦带电产生的另一组分的电荷的极性相反的极性。 在显影过程中,使用导电泡沫橡胶显影辊,其包括导电管状泡沫橡胶辊元件和插入其中心孔中的金属轴。 辊元件具有包括分散在其中的导电填料的外部较厚部分和限定其中心孔的内部固体表层,并且对于缺少导电填料而言,其电阻率显着高于较厚部分的电阻率。 然而,在滚子元件和轴之间建立了足够的电接触。 薄的金属刀片被压在辊子上,用于调节由此夹带的显影剂的厚度,并且被布置成补偿当将刀片压靠在辊子上时引起的轴的弹性变形。
    • 7. 发明授权
    • Fresnel lens sheet and rear projection screen using it
    • 菲涅尔透镜片和背投屏幕使用它
    • US07339733B2
    • 2008-03-04
    • US10583136
    • 2004-12-16
    • Kazunori HiroseMakoto Toyohara
    • Kazunori HiroseMakoto Toyohara
    • G03B21/56G03B21/60G02B3/08
    • G03B21/62G02B3/08
    • A Fresnel lens sheet which is bright due to a small light quantity loss, is restricted in speckles and ghosts, does not produce moires, and can be used in an inexpensive transmitting screen, wherein the sheet satisfies the diffusion characteristics of the following expressions (1) and (2), or the following expressions (3), (4) and (5). γ/α≦2.8 (1) ζ/α≦6 (2), where α is viewing half value angle, γ viewing 1/10 value angle, and ζ viewing 1/100 value angle. 2.0°≦α≦5.5° (3), where α is viewing half value angle, γ≦12° (4), where γ is viewing 1/10 value angle, ζ≦18° (5), where ζ is viewing 1/100 value angle.
    • 由于光量损失小而明亮的菲涅尔透镜片在斑点和重影中受到限制,不产生莫尔条纹,并且可以用在廉价的透射屏幕中,其中片材满足以下表达式的扩散特性(1 )和(2),或下列表达式(3),(4)和(5)。 γ/α<= 2.8(1)zeta /α<= 6(2),其中α是观看半值角,伽玛视角1/10值角,以及zeta观看1/100值角。 2.0°<=α<= 5.5°(3),其中α是观察半值角,γ<= 12°(4),其中γ是观察1/10角度角,zeta <= 18°(5),其中 zeta正在观看1/100值角。