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    • 42. 发明授权
    • Transfer device and image forming apparatus including same
    • 转印装置和包括其的图像形成装置
    • US09348271B2
    • 2016-05-24
    • US14712204
    • 2015-05-14
    • Yuji KatoShinya Tanaka
    • Yuji KatoShinya Tanaka
    • G03G15/16G03G15/01
    • G03G15/1665G03G15/0136G03G15/1675
    • A transfer device includes an image bearer to bear a toner image, a nip forming device to contact the image bearer to form a transfer nip, a transfer bias power source including a direct current (DC) power source and an alternating current (AC) power source electrically connected to each other to output a transfer bias including at least one of a DC bias and a superimposed bias to transfer the toner image from the image bearer onto a recording medium interposed in the transfer nip, a contact-and-separation device to cause the image bearer and the nip forming device to contact and separate from each other, and a controller to control the contact-and-separation device to increase a size of a space between the image bearer and the nip forming device upon transfer using the superimposed bias such that the space is larger than the space upon transfer using the DC bias.
    • 转印装置包括承载调色剂图像的图像载体,与图像载体接触以形成转印夹持部的夹持形成装置,包括直流(DC)电源和交流(AC)功率的转印偏压电源 源极彼此电连接以输出包括DC偏压和叠加偏压中的至少一个的转印偏压,以将调色剂图像从图像载体转印到介于转印辊隙中的记录介质上;接触 - 分离装置, 导致图像载体和压区形成装置彼此接触和分离;以及控制器,用于控制接触分离装置,以使用叠加的图像载体和夹持形成装置之间的空间的尺寸增大 偏置,使得空间比使用DC偏压的转移时的空间大。
    • 44. 发明授权
    • Image forming apparatus including a cam member to separate a transfer member
    • 图像形成装置包括用于分离转印构件的凸轮构件
    • US09141039B2
    • 2015-09-22
    • US14018525
    • 2013-09-05
    • Yuji KatoRyuuichi MimbuYasufumi TakahashiKenji SengokuJunpei FujitaOsamu Ichihashi
    • Yuji KatoRyuuichi MimbuYasufumi TakahashiKenji SengokuJunpei FujitaOsamu Ichihashi
    • G03G15/08G03G15/00G03G15/16
    • G03G15/1605G03G15/167
    • An image forming apparatus includes an image forming unit; an intermediate transfer member; a secondary transfer member to form a secondary transfer nip with the intermediate transfer member and the secondary transfer member; a biasing mechanism to bias the secondary transfer member toward the intermediate transfer member; a cam member rotatable between a first position, at which a predetermined space is formed in the secondary transfer nip, and a second position, at which the secondary transfer member and the intermediate transfer member contact each other; and a contact-separation controller configured to put the cam member in the first position before entry of the recording medium into the secondary transfer nip, rotate the cam member toward the second position when the recording medium enters the secondary transfer nip, and change a start timing of rotation of the cam member in accordance with a thickness of the recording medium.
    • 图像形成装置包括图像形成单元; 中间转印部件; 二次转印部件,用于与中间转印部件和二次转印部件形成二次转印辊隙; 偏压机构,用于将二次转印构件偏压到中间转印构件; 在第二位置和第二位置之间可旋转的凸轮构件,第二位置在第二位置和第二位置之间转动,第二位置在第二位置和第二位置之间转动,第二位置在二次转印构件和中间转印构件之间相互接触; 以及接触分离控制器,被配置为在记录介质进入二次转印夹持部之前将凸轮部件置于第一位置,当记录介质进入二次转印夹持部时,将凸轮部件朝向第二位置旋转,并且改变开始 凸轮构件根据记录介质的厚度旋转的时间。
    • 46. 发明授权
    • Display unit
    • 显示单元
    • US08182084B2
    • 2012-05-22
    • US12802100
    • 2010-05-27
    • Tetsuo KozakiYuji KatoEiji Suzuki
    • Tetsuo KozakiYuji KatoEiji Suzuki
    • G02C7/10
    • G02B27/0172G02B5/20G02B2027/0112G02B2027/0118
    • A display unit includes an image data output device, an image projecting device that projects image data so as to be perceived by eyes of a user, a skeleton frame on which the image projecting device is mounted, the sunglass lenses being disposed on the skeleton frame, in which the sunglass lenses are set so that a transmissivity of visible light in a predetermined wavelength region is peculiarly low and so that transmissivities of visible light in wavelength regions other than the visible light in the predetermined wavelength region are peculiarly high, and in which the coloring of image light visualized by the image projecting device is formed by light differing in color from the visible light having peculiarly high transmissivities in the sunglass lenses.
    • 显示单元包括图像数据输出装置,投影图像数据以便由用户的眼睛感知的图像投影装置,安装有图像投影装置的框架框架,太阳镜透镜设置在框架框架上 其中设置了太阳镜透镜,使得预定波长区域中的可见光的透射率特别低,并且使除了预定波长区域中的可见光以外的波长区域中的可见光的透射率特别高,并且其中 由图像投影装置可视化的图像光的着色由与太阳眼镜透镜中具有特别高的透射率的可见光不同的光形成。
    • 47. 发明授权
    • Driving circuit of load
    • 负载驱动电路
    • US08035366B2
    • 2011-10-11
    • US12567061
    • 2009-09-25
    • Yuji Kato
    • Yuji Kato
    • G05F1/00
    • H02M3/157H02M2001/0009
    • A driving circuit of a load has an output semiconductor element connected in series in a power supply path from a power source to the load, to control a current of the load, a PWM signal generator for controlling ON/OFF of the output semiconductor element, a driver of the output semiconductor element according to the PWM signal, a detection resistor made of a semiconductor detecting a current of the load, a current output amplifier outputting a monitored current of detection resistor without being influenced by variation of ambient temperature, a resistor converting the monitored current into a monitored voltage, a current source outputting a constant current without being influenced by variation of ambient temperature, a resistor outputting a reference voltage according to the constant current, and an A/D converter converting the monitored voltage according to the reference voltage into a detected current value of the current of the load.
    • 负载的驱动电路具有从电源到负载的电源路径中串联连接的输出半导体元件,以控制负载电流; PWM信号发生器,用于控制输出半导体元件的导通/截止; 根据PWM信号的输出半导体元件的驱动器,由检测负载电流的半导体构成的检测电阻器,输出检测电阻的监视电流而不受环境温度变化影响的电流输出放大器,电阻转换器 监测电流进入监测电压,电流源不受环境温度变化的影响输出恒定电流,根据恒定电流输出参考电压的电阻器和根据参考值转换监测电压的A / D转换器 电压进入负载电流的检测电流值。
    • 48. 发明授权
    • Load drive apparatus
    • 负载驱动装置
    • US07990674B2
    • 2011-08-02
    • US12307321
    • 2007-06-21
    • Yuji KatoKeiichi SekiguchiKiyokatsu Satoh
    • Yuji KatoKeiichi SekiguchiKiyokatsu Satoh
    • H02H5/04
    • H03K17/0822H03K2017/0806
    • A load drive apparatus is provided which comprises a switching element 3 connected in series to a DC power source Vcc and an electric load 4, a drive circuit 5 for generating control signals to turn switching element 3 on and off, a thermal detection element 6 for sensing a temperature of switching element 3, an overheat protective circuit 7 for generating an overheat detection signal when thermal detection element 6 senses the temperature of switching element 3 over a predetermined temperature level, and a disconnection detection circuit 11 provided with a current mirror circuit 12 connected between one and the other terminals of thermal detection element 6 for detecting a disconnection in wiring between thermal detection element 6 and overheat protective circuit 7. When overheat protective circuit 7 produces an overheat detection signal or when disconnection detection circuit 11 detects a breaking of wiring between thermal detection element 6 and overheat protective circuit 7, the control signal from drive circuit 5 is prohibited to be given to switching element 3. In case of disconnection in wiring between the thermal detection element 6 and overheat protective circuit 7, the load drive apparatus can prevent thermal damage to the switching element used therein.
    • 提供一种负载驱动装置,其包括与DC电源Vcc和电负载4串联连接的开关元件3,用于产生控制信号以使开关元件3接通和断开的驱动电路5,用于 感测开关元件3的温度,当热检测元件6感测到开关元件3的温度超过预定温度电平时产生过热检测信号的过热保护电路7以及设置有电流镜电路12的断路检测电路11 连接在热检测元件6的一个端子和另一个端子之间,用于检测热检测元件6和过热保护电路7之间的布线断开。当过热保护电路7产生过热检测信号或当断路检测电路11检测到布线断线时 在热检测元件6和过热保护电路7之间, 来自驱动电路5的控制信号被禁止提供给开关元件3.在热检测元件6与过热保护电路7之间的布线断开的情况下,负载驱动装置可以防止对其中使用的开关元件的热损坏。