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    • 45. 发明授权
    • Developing device and image forming apparatus including the same
    • 显影装置和包括其的图像形成装置
    • US06763216B2
    • 2004-07-13
    • US10156853
    • 2002-05-30
    • Mikio IshibashiShuji Tanaka
    • Mikio IshibashiShuji Tanaka
    • G03G1509
    • G03G15/0812G03G15/09G03G2215/0634
    • A developing device for feeding a developer stored therein to an image carrier of the present invention includes a sleeve facing the image carrier for causing the developer deposited thereon to contact a latent image formed on the image carrier. A regulating member faces the sleeve for regulating the thickness of the developer that forms a layer on the sleeve. A guide member has a guide surface for guiding the developer regulated by the regulating member toward the surface of the image carrier. The guide surface has a conductive surface facing the sleeve. The developing device protects the image carrier from defective images ascribable to impurities, which include deteriorated toner and paper dust, without resorting to a filter mechanism or a bias for collection.
    • 用于将存储在其中的显影剂供给到本发明的图像载体的显影装置包括面向图像载体的套筒,用于使沉积在其上的显影剂与形成在图像载体上的潜像接触。 调节构件面向套筒,用于调节在套筒上形成层的显影剂的厚度。 引导构件具有用于将由调节构件调节的显影剂朝向图像载体的表面引导的引导表面。 引导表面具有面向套筒的导电表面。 显影装置保护图像载体免受归因于杂质的不良图像,包括劣化的调色剂和纸屑,而不需要使用过滤机构或用于收集的偏压。
    • 46. 发明授权
    • Process for producing polycarbonate
    • 生产聚碳酸酯的方法
    • US06740729B1
    • 2004-05-25
    • US09674725
    • 1998-06-06
    • Shuji TanakaShinichi YoshidaTamiko Nishihira
    • Shuji TanakaShinichi YoshidaTamiko Nishihira
    • C08G6400
    • C08G64/307C07C68/00C07C69/96
    • A process for preparing polycarbonate is composed of the steps of transesterifying a dialkyl oxalate and a phenolic compound to give a diaryl oxalate; decarbonylating the diaryl oxalate to give a diaryl carbonate; reacting the diaryl carbonate with a polyvalent hydroxyl compound in the presence of a catalyst containing an amine compound or an ammonium compound to give the polycarbonate, removing a phenolic by-product/amine by-product mixture; collecting the mixture; purifying the mixture so that the amount of the amine by-product in the mixture is reduced to give a phenolic by-product mixture not containing the amine by-product in an amount of more than 600 ppm; and, utilizing thus purified phenolic mixture as a whole or a part of the phenolic compound in the first step.
    • 制备聚碳酸酯的方法由将草酸二烷基酯和酚类化合物酯交换得到草酸二芳基酯的步骤组成; 使草酸二芳基酯脱碳,得到碳酸二芳基酯; 在含有胺化合物或铵化合物的催化剂存在下使碳酸二芳酯与多价羟基化合物反应,得到聚碳酸酯,除去酚类副产物/胺副产物混合物; 收集混合物; 纯化混合物,使得混合物中的副产物的量减少,得到不含胺副产物的酚类副产物混合物的量大于600ppm; 并且在第一步中利用这样纯化的酚类混合物作为整体或一部分酚类化合物。