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    • 2. 发明授权
    • Developing apparatus including intermittent developer agitating feature, and image forming apparatus using same
    • 显影装置,包括间歇显影剂搅拌特征,以及使用其的图像形成装置
    • US06370348B1
    • 2002-04-09
    • US09570060
    • 2000-05-12
    • Keiji OkanoKoichi SuwaMasahiro YoshidaHideki Matsumoto
    • Keiji OkanoKoichi SuwaMasahiro YoshidaHideki Matsumoto
    • G03G1508
    • G03G15/0822G03G2215/0602
    • A developing apparatus includes a developer containing portion containing a developer having a weight average particle diameter of not more than 7 &mgr;m, a developer bearing member for bearing a developer, and an agitating member that agitates the developer contained in the developer containing portion. The agitating member is intermittently driven with respect to rotation of a developing sleeve. The agitating member is driven to rotate for one page every time the image forming apparatus performs a predetermined number of printing operations. A rod member having a crank-like shape may be used as the agitating member and both of the end portions serve as the center of rotation. By controlling the drive of the agitating member, it is possible to effectively adjust the supply of toner to the developing sleeve and prevent the density lowering phenomena caused due to inflow of a large amount of the new toner presented at the rear of the developing container. The agitating member may be positioned closest to the developing sleeve and may be arranged below the toner container. Accordingly, to these arrangements, the image density after printing a low print pattern can be prevented from being lessened to obtain a uniform image density even though a one-component magnetic developer having the weight average particle sized diameter of not more than 7 &mgr;m is used.
    • 显影装置包括含有重均粒径不大于7μm的显影剂的显影剂容纳部分,用于承载显影剂的显影剂承载部件和搅拌包含在显影剂容纳部分中的显影剂的搅拌部件。 搅拌构件相对于显影套筒的旋转间歇地驱动。 每当图像形成装置执行预定数量的打印操作时,搅拌构件被驱动旋转一页。 可以使用具有曲柄形状的杆构件作为搅拌构件,并且两个端部用作旋转中心。 通过控制搅拌构件的驱动,可以有效地调节向显影套筒的调色剂供应,并且防止由于大量新鲜调色剂流入显影容器的后部而引起的浓度降低现象。 搅拌构件可以定位成最靠近显影套筒并且可以布置在调色剂容器的下方。 因此,对于这些布置,即使使用重均粒径不大于7μm的单组分磁性显影剂,也可以防止印刷低印刷图案之后的图像浓度,以获得均匀的图像浓度 。
    • 3. 发明授权
    • Image forming apparatus and process cartridge
    • 成像设备和处理盒
    • US06175703B1
    • 2001-01-16
    • US09425734
    • 1999-10-22
    • Yusuke NakazonoJunichi KatoKoichi SuwaSatoru InamiMasahiro YoshidaAtsutoshi AndoSatoshi SunaharaSeiichi Shinohara
    • Yusuke NakazonoJunichi KatoKoichi SuwaSatoru InamiMasahiro YoshidaAtsutoshi AndoSatoshi SunaharaSeiichi Shinohara
    • G03G2116
    • G03G9/0819G03G9/09708G03G9/09716G03G9/09725G03G9/09733G03G13/09G03G13/22G03G2215/021G03G2221/183
    • An image forming apparatus having at least: an image carrying member for carrying an electrostatic latent image, the image carrying member having a photosensitive layer on a conductive substrate; a developer for developing the electrostatic latent image carrying member on the image carrying member; a developer carrying member for carrying the developer and conveying it to a development area; a control member making contact with the developer carrying member for controlling the coating amount of the developer; and a cleaning member for cleaning the surface of the photosensitive layer of the image carrying member by making contact with the surface of the image carrying member with a contact pressure of 0.15N (15 gf) to 0.89N (90 gf). The photosensitive layer contains at least one kind of polycarbonate resin (I) having a viscosity average molecular weight of 1.5×104 or less and at least one kind of polycarbonate resin (II) having a viscosity average molecular weight of more than 1.5×104, the polycarbonate resin (I) is contained in 30% by mass to 95% by mass based on the total content of the resins (I) and (II). The developer has a toner containing toner particles and external additives, and the toner contains (a) 0.1% by mass to 5.0% by mass of a first fine powder with a number average particle size of 0.005 &mgr;m to 3.00 &mgr;m, and (b) 0.02% by mass to 2.00% by mass of an inorganic second fine powder containing 25% by mass to 90% by mass of a lubricant, as external additives.
    • 一种图像形成装置,至少具有:用于承载静电潜像的图像承载部件,所述图像承载部件在导电基板上具有感光层; 用于在图像承载构件上显影静电潜像承载构件的显影剂; 用于承载显影剂并将其传送到显影区域的显影剂承载构件; 控制构件与显影剂承载构件接触以控制显影剂的涂布量; 以及清洁部件,通过以0.15N(15gf)至0.89N(90gf)的接触压力与图像承载部件的表面接触来清洁图像承载部件的感光层的表面。 感光层含有至少一种粘均分子量为1.5×10 4以下的聚碳酸酯树脂(I)和至少一种粘均分子量大于1.5×10 4的聚碳酸酯树脂(II),聚碳酸酯 相对于树脂(I)和(II)的总含量,树脂(I)的含量为30质量%〜95质量%。 显影剂具有含有调色剂颗粒和外部添加剂的调色剂,并且调色剂含有(a)数均粒径为0.005μm至3.00μm的第一细粉末的0.1质量%至5.0质量%,和(b) 作为外部添加剂,含有25质量%〜90质量%的润滑剂的无机第二细粉的0.02质量%〜2.00质量%。
    • 9. 发明授权
    • Liquid crystal display device
    • 液晶显示装置
    • US08854581B2
    • 2014-10-07
    • US13392235
    • 2010-08-19
    • Masahiro YoshidaKunihiro Tashiro
    • Masahiro YoshidaKunihiro Tashiro
    • G02F1/1337G02F1/1343G02F1/139G02F1/1362
    • G02F1/136286G02F1/133345G02F1/133528G02F1/1337G02F1/133707G02F1/133753G02F1/13394G02F1/134309G02F1/136213G02F1/136227G02F1/137G02F1/1393G02F2001/133531G02F2001/133757G02F2001/13712G02F2201/123
    • The present invention has an object of providing a liquid crystal display device having a high transmittance or a high viewing angle characteristic. A liquid crystal display device according to the present invention includes a pixel electrode (30) including a peripheral portion (36), an island portion (32) and a plurality of branch portions (34). The plurality of branch portions (34) are formed of a plurality of first through fourth branch portions (34A through 34D) respectively extending in first through fourth directions. By these branch portions, first through fourth regions (35A through 35D) in which liquid crystal molecules are aligned in different directions from each other at the time of voltage application are formed. The island portion (32) is surrounded by the first through fourth regions (35A through 35D), and is connected to the peripheral portion (36) by a connection portion (38) but not by any of the plurality of branch portions (34) or connected to the peripheral portion (36) by one of the first through fourth branch portions (34A through 34D).
    • 本发明的目的是提供具有高透射率或高视角特性的液晶显示装置。 根据本发明的液晶显示装置包括具有周边部分(36),岛部(32)和多个分支部分(34)的像素电极(30)。 多个分支部分(34)由分别沿第一至第四方向延伸的多个第一至第四分支部分(34A至34D)形成。 通过这些分支部分,形成在施加电压时将液晶分子彼此不同方向排列的第一至第四区域(35A至35D)。 岛部32由第一至第四区域35A〜35D包围,并且通过连接部38而不由多个分支部34中的任一个与周边部36连接, 或者通过第一至第四分支部分(34A至34D)之一连接到周边部分(36)。