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    • 5. 发明申请
    • IMAGE FORMING APPARATUS WITH CLEANING DEVICE AND CLEANING METHOD
    • 具有清洁装置和清洁方法的图像形成装置
    • US20100266320A1
    • 2010-10-21
    • US12822506
    • 2010-06-24
    • Shigeru Fujiwara
    • Shigeru Fujiwara
    • G03G21/00
    • G03G21/0029
    • In an image forming apparatus including a cleaning device having a cleaning blade arranged so as to make contact with and separate from a cleaned surface, an occurrence of excessive cutting when the cleaning blade makes contact with the cleaned surface is prevented. The image forming apparatus includes the cleaning blade for making contact with and separating from the cleaned surface and scraping off toner adhered onto the cleaned surface and a regulation unit for regulating a movement of the cleaning blade in the direction of contact with the cleaned surface up to a position where a pressing force to the cleaned surface by the cleaning blade does not exceed a predetermined pressing force.
    • 在包括具有布置成与清洁表面接触并与其分离的清洁刮板的清洁装置的图像形成装置中,防止了当清洁刮板与清洁表面接触时出现过度切割。 图像形成装置包括用于与清洁表面接触并与其分离并清除附着在清洁表面上的调色剂的清洁刮板和用于调节清洁刮板沿与清洁表面接触的方向的运动的调节单元,直到 通过清洁刮板对清洁表面的按压力不超过预定的按压力的位置。
    • 7. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20090135449A1
    • 2009-05-28
    • US12277452
    • 2008-11-25
    • Takeshi WatanabeNobuhiko NakaharaShigeru FujiwaraHiroyuki Okuyama
    • Takeshi WatanabeNobuhiko NakaharaShigeru FujiwaraHiroyuki Okuyama
    • H04N1/60
    • H04N1/4078H04N1/6033H04N1/6091
    • An image forming apparatus includes a pattern formation unit which forms a first gradation screen pattern on an image carrier unit at a non-image formation operation, a gradation characteristic determination unit which determines a gradation characteristic from the first gradation pattern formed by the pattern formation unit, a first gradation correction characteristic determination unit which determines a first gradation correction characteristic from the gradation characteristic determined by the gradation characteristic determination unit, a characteristic detection unit which detects a change characteristic in the image forming apparatus just before image formation, a pattern correlation characteristic correction unit which determines a pattern correlation characteristic corresponding to the change characteristic detected by the characteristic detection unit and a second gradation correction characteristic determination unit which determines a second gradation correction characteristic by performing an arithmetic operation on the first gradation correction characteristic and the pattern correlation characteristic.
    • 图像形成装置包括在非图像形成操作下在图像载体单元上形成第一灰度级屏幕图案的图案形成单元,灰度特性确定单元,其从由图案形成单元形成的第一灰度图案确定灰度特性 第一灰度校正特性确定单元,其根据由灰度特性确定单元确定的灰度特性确定第一灰度校正特性;特征检测单元,其检测在图像形成之前的图像形成装置中的变化特性,图案相关特性 确定对应于由特征检测单元检测到的变化特征的图案相关特性的校正单元和确定第二灰度校正特性的第二灰度校正特性确定单元 对第一灰度校正特性和图案相关特性进行算术运算。
    • 8. 发明授权
    • Remote field eddy current flaw detector for metal pipes having a pair of
receiver coils providing a differential offset amplitude signal
    • 具有提供差分偏移信号的接收器线圈的金属管道的远场现场电流检测器
    • US5210492A
    • 1993-05-11
    • US740388
    • 1991-08-05
    • Yasuharu HosoharaKiwamu SuzukiShigeru FujiwaraToshihide Kawabe
    • Yasuharu HosoharaKiwamu SuzukiShigeru FujiwaraToshihide Kawabe
    • G01N27/90
    • G01N27/902G01N27/9046
    • The present invention relates to a flaw detector for metal material for maintaining and managing pipelines using a remote field eddy current sensor. An AC signal having a constant level and shifted by predetermined phase angle is added to signals received in receiving coils of the remote field eddy current sensor to obtain accurate phase detection in a normal, nonflawed portion of the pipeline to be tested (e.g. uniform thickness, no holes, etc.). By preventing generation of abnormal flaw data, precise diagnosis of the pipeline can be performed. An AGC circuit may be used to maintain at a constant level of received signal. Two sets of spaced apart receiving coils are spaced from an exciting coil a distance greater than a predetermined distance (about two times the pipeline diameter). The set of receiving coils closest to the exciting coil has a greater number of coil turns than the other set. This coil configuration generates sensed coil differential signals having sufficient signal amplitude to permit stabilized and accurate phase detection and comparison for nonflawed and gradually flawed regions in the pipe.
    • 本发明涉及一种用于使用远场涡流传感器维护和管理管线的金属材料探伤仪。 将具有恒定电平并且移位了预定相位角的AC信号添加到在远场涡流传感器的接收线圈中接收到的信号,以在要测试的管线的正常非缺陷部分(例如均匀的厚度, 无孔等)。 通过防止产生异常缺陷数据,可以进行流水线的精确诊断。 可以使用AGC电路来维持在接收信号的恒定电平。 两组间隔开的接收线圈与激励线圈间隔大于预定距离(约为管道直径的两倍)。 最靠近励磁线圈的接收线圈组比其他组具有更多的线圈匝数。 该线圈配置产生具有足够信号幅度的感测线圈差分信号,以允许对管道中非缺陷和逐渐有缺陷的区域进行稳定和精确的相位检测和比较。