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    • 6. 发明授权
    • Printing media feeding apparatus, printing apparatus provided with the feeding apparatus, printing media feeding speed control method and computer program
    • 印刷介质进给装置,设有进给装置的打印装置,打印介质进给速度控制方法和计算机程序
    • US08376640B2
    • 2013-02-19
    • US11203395
    • 2005-08-12
    • Kaoru Ogawa
    • Kaoru Ogawa
    • B41J11/00B41J11/42B41J2/32
    • G03G15/6529B41J11/42B41J13/103G03G2215/00645G03G2215/00746
    • The present invention prevents density irregularity from appearing in a print result and to thereby improve image quality by controlling a motor so that the rotational speed of a drive shaft that feeds printing media is constant. The present invention provides a printing media feeding apparatus including a feeding section that includes a motor, a drive transmission mechanism which transmits a driving force of the motor, and a drive shaft to which the driving force is transmitted by the drive transmission mechanism. The drive shaft is rotated to feed the printing medium. A detection section is provided having at least a portion secured to the drive shaft and the detection section determines the rotational speed of the drive shaft and a controller controls the motor based on an input from the detection section so that the rotational speed the of the drive shaft is constant.
    • 本发明防止了在打印结果中出现浓度不均匀性,从而通过控制马达使得馈送打印介质的驱动轴的旋转速度恒定而提高图像质量。 本发明提供了一种打印介质进给装置,包括:馈送部分,其包括马达,传递马达的驱动力的驱动传递机构和由驱动传动机构传递驱动力的驱动轴。 驱动轴旋转以供给打印介质。 检测部具有至少一部分固定在驱动轴上,检测部确定驱动轴的转速,控制器根据来自检测部的输入来控制马达,使得驱动部的转速 轴是恒定的。
    • 8. 发明授权
    • Method for continuous production of polyamide
    • 连续生产聚酰胺的方法
    • US07381788B2
    • 2008-06-03
    • US10525740
    • 2003-08-27
    • Yasuhito TsujiiGaku MaruyamaKaoru OgawaYoshinori TakadaKazuhisa KoishiKenta Susuki
    • Yasuhito TsujiiGaku MaruyamaKaoru OgawaYoshinori TakadaKazuhisa KoishiKenta Susuki
    • C08G69/00C08G69/28B29C47/76
    • C08G69/04C08G69/28
    • Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide. A continuous production method of a polyamide, comprising (a) a raw material preparation step of individually melting a diamine and a dicarboxylic acid, or producing a salt of amine and carboxylic acid in water, (b) a raw material introduction step of continuously introducing the prepared raw materials into a tubular reaction apparatus, (c) an amidation step of passing the introduced raw materials through the tubular reaction apparatus, thereby effecting amidation to obtain a reaction mixture containing an amidated product and a condensed water, (d) an initial polymerization step of introducing the reaction mixture into a continuous reaction apparatus capable of separation and removal of water, and elevating the polymerization degree while separating and removing water at a temperature higher than the melting point of the finally obtained polyamide to obtain a polyamide prepolymer, and (e) a final polymerization step of introducing the polyamide prepolymer into a continuous reaction apparatus capable of separation and removal of water, and further elevating the polymerization degree at a temperature higher than the melting point of the finally obtained polyamide to obtain a polyamide adjusted to a desired relative viscosity [RV].
    • 提供了具有稳定的聚合度和良好质量的聚酰胺的连续制备方法,特别是含芳族聚酰胺。 一种聚酰胺的连续制造方法,其特征在于,包括:(a)将二胺和二羧酸单独熔融或在水中生成胺和羧酸盐的原料制备工序,(b)原料引入工序, 所制备的原料进入管状反应装置,(c)使引入的原料通过管状反应装置的酰胺化步骤,从而进行酰胺化以获得含有酰胺化产物和冷凝水的反应混合物,(d)初始 将反应混合物引入能够分离和除去水的连续反应装置的聚合步骤,并且在高于最终获得的聚酰胺的熔点的温度下分离和除去水以提高聚合度以获得聚酰胺预聚物,以及 (e)将聚酰胺预聚物引入连续反应ap的最终聚合步骤 能够分离和除去水,并且在高于最终获得的聚酰胺的熔点的温度下进一步提高聚合度,以获得调节至所需相对粘度[RV]的聚酰胺。