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    • 2. 发明授权
    • Magnetic recording apparatus
    • 磁记录装置
    • US06333840B1
    • 2001-12-25
    • US09270681
    • 1999-03-16
    • Hiroaki YodaTadahiko KobayashiKohichi TateyamaHiromi Sakata
    • Hiroaki YodaTadahiko KobayashiKohichi TateyamaHiromi Sakata
    • G11B5127
    • B82Y10/00G11B5/012G11B5/09G11B5/3116G11B5/313G11B5/3903G11B5/3967G11B20/10
    • There is provided a magnetic recording apparatus capable of carrying out signal reproduction with high accuracy by using a narrow gap head structure corresponding to high recording density. An asymmetric gap structure MR head includes a magnetoresistance element 26 having a magnetoresistance film 24 and a pair of electrodes 25 disposed at the upper side; a reproducing magnetic gap film 23 disposed only at the lower side of the magnetoresistance element 26; a magnetic shielding film 22 disposed so as to make a laminate with the magnetoresistance element 26 through the reproducing magnetic gap film 23; and an insulating film 27 disposed at the upper side of the magnetoresistance element 26. When a signal is read by use of such a reproducing head, the signal of the present bit is read by subtracting a value obtained by multiplying signals of a plurality of previous bits by predetermined coefficients from the present reproduction signal. As another reproduction signal processing system, a partial response system is adopted.
    • 提供了一种能够通过使用对应于高记录密度的窄间隙头结构以高精度执行信号再现的磁记录装置。 非对称间隙结构MR头包括具有磁阻膜24和设置在上侧的一对电极25的磁阻元件26。 设置在磁阻元件26的下侧的再现磁隙膜23; 设置成通过再现磁隙膜23与磁阻元件26层叠的磁屏蔽膜22; 以及设置在磁阻元件26的上侧的绝缘膜27.当通过使用这种再现头读取信号时,通过减去通过将多个先前的信号乘以信号而获得的值来读取当前位的信号 比特由来自当前再现信号的预定系数。 作为另一再现信号处理系统,采用部分响应系统。
    • 3. 发明授权
    • Method of stripping a sealing member from a toner cartridge
    • 从密封盒剥离密封件的方法
    • US5363177A
    • 1994-11-08
    • US103390
    • 1993-08-09
    • Kuniaki NakanoYasuyuki HiraiMasahiro HigashitaniYasuhiro MatsuoShingo MoriHiromi SakataMasahiro SakoMinoru Kishigami
    • Kuniaki NakanoYasuyuki HiraiMasahiro HigashitaniYasuhiro MatsuoShingo MoriHiromi SakataMasahiro SakoMinoru Kishigami
    • G03G15/08
    • G03G15/0882
    • An opening for discharging toner is formed in a lower part of a cartridge body containing toner. A shutter mounting body is mounted on the opening. A first shutter is slidably mounted on the shutter mounting body. A second shutter is slidably mounted on the first shutter. A front end of a sealing member for sealing the opening is extended, the extended front end being inserted through a seal traction opening formed in a front end of the second shutter, and fixed to a front end of the first shutter. When the second shutter is pulled out of the shutter mounting body, the sealing member is towed by the seal traction opening. In addition, the first shutter is further towed by the sealing member, to be also pulled out. Consequently, nearly half of the sealing member from its front end is stripped. When the second shutter is further pulled out after the movement of the first shutter is regulated, the seal traction opening in the second shutter tows the sealing member while allowing the insertion of the sealing member. At this time, the sealing member is stripped while being so folded that a toner adhering surface is located in its inside. In this construction, the stroke for stripping is decreased, thereby to make it possible to prevent contamination by toner as well as prevent a large part of the sealing member from being ineffective.
    • 在含有调色剂的盒体的下部形成有用于排出调色剂的开口。 快门安装体安装在开口上。 第一挡板可滑动地安装在挡板安装体上。 第二挡板可滑动地安装在第一挡板上。 用于密封开口的密封构件的前端延伸,延伸的前端通过形成在第二闸门的前端的密封件牵引开口插入并固定到第一挡板的前端。 当第二挡板从快门安装体拉出时,密封构件被密封件牵引开口牵引。 此外,第一挡板被密封构件进一步牵引,也被拉出。 因此,从其前端的密封件的近一半被剥离。 当第一挡板的移动被调节后第二挡板进一步拉出时,第二挡板上的密封件牵引开口在允许密封构件的插入的同时牵引密封构件。 此时,密封构件被折叠,同时使调色剂粘附表面位于其内部。 在这种结构中,用于剥离的冲程减少,从而可以防止调色剂的污染以及防止大部分密封件无效。
    • 6. 发明授权
    • Variable magnification electrostatic copying apparatus
    • 可变倍率静电复印机
    • US4582418A
    • 1986-04-15
    • US555005
    • 1983-11-21
    • Nobuhiko KozukaHiromi SakataAtsushi KanoShigeo Koyama
    • Nobuhiko KozukaHiromi SakataAtsushi KanoShigeo Koyama
    • G03B27/34G03B27/52G03G15/041G03G15/04
    • G03G15/0415G03B27/526G03G15/041
    • A variable magnification electrostatic copying apparatus includes a stationary transparent plate for placing thereon a document to be copied, an optical system including a first reflecting mirror assembly adapted to be moved reciprocally along the transparent plate, a second reflecting mirror assembly adapted to be moved reciprocally at a speed equal to one-half of the moving speed of the first reflecting mirror assembly and a lens assembly to be held at any one of a plurality of positions corresponding to a plurality of projecting ratios, and a projecting ratio changing device for moving the lens assembly and the second reflecting mirror assembly so as to change the projecting ratio of the optical system. The projecting ratio changing device includes a drive source in the form of a stepping motor, a control for controlling the operation of the drive source, a setting member for moving the second reflecting mirror assembly, a first power transmission system interposed between the drive source and the setting member and a second power transmission system interposed between the drive source and the lens assembly. The second reflecting mirror assembly is moved through the first power transmission system and the setting member, and the lens assembly is moved through the second power transmission system. An exposure correcting device includes plural plates movable between non-operating positions to respective operating positions controlling the area of exposure. The control includes high and low speed rotating plates and optical detectors for detecting positions thereof and for controlling the stepping motor.
    • 一种可变倍率静电复印装置,包括:用于放置待复制的文件的固定透明板;包括适于沿着透明板往复运动的第一反射镜组件的光学系统;第二反射镜组件,其适于在 速度等于第一反射镜组件的移动速度的一半,以及要保持在对应于多个突出比的多个位置中的任一个位置的透镜组件,以及用于移动透镜的突出比例改变装置 组件和第二反射镜组件,以便改变光学系​​统的伸出率。 投影比例改变装置包括步进电机形式的驱动源,用于控制驱动源的操作的控制装置,用于移动第二反射镜组件的调整构件,插入在驱动源和 设置构件和插入在驱动源和透镜组件之间的第二动力传动系统。 第二反射镜组件移动通过第一动力传动系统和设置构件,并且透镜组件移动通过第二动力传动系统。 曝光校正装置包括可在非操作位置之间移动到控制曝光区域的相应操作位置的多个板。 该控制装置包括用于检测其位置和用于控制步进电机的高速和低速旋转板和光学检测器。
    • 7. 发明授权
    • Charge eliminating lamp device
    • 消电灯装置
    • US4576464A
    • 1986-03-18
    • US682763
    • 1984-12-17
    • Hiromi SakataNobuhiko KozukaHiroshi Hiraoka
    • Hiromi SakataNobuhiko KozukaHiroshi Hiraoka
    • G03G21/08G03G15/047G03G15/00
    • G03G15/047G03G2215/0448
    • A charge eliminating lamp device, for use in an electrostatic copying apparatus, comprising a light shielding frame member having a light transmission opening formed on that surface which faces the surface of an electrostatographic material, a plurality of selectively energizable illuminating lamps disposed within the light shielding frame member in spaced-apart relationship in the width direction of the electrostatographic material, and a plurality of inside edge restricting light shielding walls disposed within the light shielding frame member and positioned adjacent to the insides of the illuminating lamps respectively as viewed in said width direction. The charge eliminating lamp device includes selectively energizable auxiliary lamps disposed among said illuminating lamps as viewed in said width direction. Alternatively, a partitioning light shielding wall is disposed within the frame member extending in said width direction for partitioning the inside of the frame member into two sections in the moving direction of the electrostatographic material, and the illuminating lamps and the inside edge restricting light shielding walls are disposed alternately in one and the other of the two sections. Alternatively, auxiliary light transmission openings are formed in at least one of the front and rear walls of the frame member located frontwardly and rearwardly as viewed in the moving direction of the electrostatographic material.
    • 一种用于静电复印装置的电荷消除灯装置,包括一个遮光框架构件,该遮光框架构件具有在该表面上形成的与透视表面相对的光透射开口,多个选择性激励的照明灯设置在该光屏蔽 框架构件在静电放射材料的宽度方向上间隔开的关系,以及多个内边缘限制遮光壁,其设置在遮光框架构件内并且在所述宽度方向上观察时分别邻近照明灯的内部定位 。 电荷消除灯装置包括在所述宽度方向上观察时设置在所述照明灯中的选择性地激励的辅助灯。 或者,分隔光屏蔽壁设置在沿着宽度方向延伸的框架构件中,用于将框架构件的内部沿静电图像材料的移动方向分成两部分,并且照明灯和内侧边缘限制遮光壁 交替地布置在两个部分中的一个和另一个部分中。 或者,辅助光透射开口形成在框架构件的前壁和后壁中的至少一个位于从静电图像材料的移动方向观察的位置向前和向后。