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    • 63. 发明授权
    • Radio communication terminal
    • 无线电通信终端
    • US07929990B2
    • 2011-04-19
    • US12050878
    • 2008-03-18
    • Tazuko TomiokaTakeshi TomizawaTomoya Horiguchi
    • Tazuko TomiokaTakeshi TomizawaTomoya Horiguchi
    • H04M1/00
    • H04W48/16
    • A radio communication terminal includes a detection unit configured to detect a plurality of usable frequencies of a frequency range, in which the radio communication terminal plans to transmit, at least depending on whether or not a power of a first received signal is greater than a first threshold, a selection unit configured to select, when a first frequency band from f0+f1 to f0+f1+Δf1 (f1 is a first frequency, and Δf1 is a first bandwidth) and a second frequency band from f0−f1−Δf1 to f0−f1 are simultaneously usable with respect to a center frequency f0 of a utilizing frequency range including the usable frequencies, the first frequency band and the second frequency band as a pair of utilizing frequency bands, and a transmission unit configured to transmit different signals in the pair of utilizing frequency bands.
    • 无线电通信终端包括:检测单元,被配置为至少根据第一接收信号的功率是否大于第一接收信号来检测无线电通信终端计划发送的频率范围的多个可用频率 阈值,选择单元,被配置为当从f0 + f1到f0 + f1 +&Dgr; f1(f1是第一频率,&Dgr; f1是第一带宽)的第一频带和从f0- f1-&Dgr; f1至f0-f1可以相对于包括可用频率,第一频带和第二频带的利用频率范围的中心频率f0作为一对利用频带同时使用,并且传输单元 被配置为在所述一对利用频带中传送不同的信号。
    • 65. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20080181647A1
    • 2008-07-31
    • US11860139
    • 2007-09-24
    • Takeshi Tomizawa
    • Takeshi Tomizawa
    • G03G15/00
    • H04N1/2323G03G9/0821G03G9/0823G03G9/09G03G9/0926G03G15/0126G03G15/5029G03G2215/0119H04N1/295
    • An image forming apparatus comprising: an image bearing member; a toner image forming means forming a toner image on the image bearing member, using light toners, and dark toners which have a same hue as that of the light toners and are darker than the light toners; a transfer means which electrostatically transfers a toner image on the image bearing member onto a recording material; and an adjusting means which adjusts the toner image forming means so that a rate between the dark toners and the light toners included in a toner image with predetermined density on the image bearing member is changed according to the roughness of a surface of the recording material onto which the toner image on the image bearing member is transferred.
    • 一种图像形成装置,包括:图像承载部件; 调色剂图像形成装置,在图像承载部件上形成调色剂图像,使用浅色调剂和暗色调剂,其具有与浅色调剂相同的色调并且比浅色调剂更暗; 将图像承载部件上的调色剂图像静电转印到记录材料上的传送装置; 以及调节装置,其调节调色剂图像形成装置,使得包含在图像承载部件上的具有预定浓度的调色剂图像中的深色调剂和调色剂之间的速率根据记录材料的表面的粗糙度而变化到 图像承载部件上的调色剂图像被转印。
    • 67. 发明申请
    • IMAGE FORMING APPARATUS
    • 图像形成装置
    • US20070242967A1
    • 2007-10-18
    • US11736279
    • 2007-04-17
    • Masami HANOTakeshi Tomizawa
    • Masami HANOTakeshi Tomizawa
    • G03G15/00
    • G03G15/1605G03G15/0131G03G15/5041G03G15/5058G03G2215/00042G03G2215/00059
    • An image forming apparatus including image forming means for forming a toner image, which includes an image bearing member, a charger for charging the image bearing member, an exposure device for exposing the image bearing member to form an electrostatic image, and a developing device for developing the electrostatic image; a transfer member for electrostatically transferring a toner image from the image bearing member onto a recording material at a transfer region; detecting means for optically detecting a detection toner image formed on the image bearing member; control means for controlling a toner image forming condition of the toner image forming means on the basis of a result of detection of the detecting means; voltage applying means for applying to when the detection toner image passes the transfer region, a voltage having the same polarity as a charge polarity of the toner image, wherein potential difference between the voltage and a potential of a region of the image bearing member charged by the charging means is less than a discharge threshold therebetween, and a potential difference between the voltage and a potential of a region of the image bearing member where the detection toner image is exposed to the detecting means is not less than the discharge threshold.
    • 一种图像形成装置,包括用于形成调色剂图像的图像形成装置,其包括图像承载部件,用于对图像承载部件充电的充电器,用于使图像承载部件暴露以形成静电图像的曝光装置,以及用于 显影静电图像; 用于将调色剂图像从图像承载部件静电转印到转印区域上的记录材料上的转印部件; 用于光学检测形成在图像承载部件上的检测调色剂图像的检测装置; 控制装置,用于根据检测装置的检测结果控制调色剂图像形成装置的调色剂图像形成条件; 电压施加装置,用于当检测调色剂图像通过转印区域时,施加与调色剂图像的电荷极性相同极性的电压,其中图像承载部件的区域的电压和电位之间的电位差由 充电装置小于其间的放电阈值,并且将检测调色剂图像暴露于检测装置的图像承载部件的区域的电压和电位之间的电位差不小于放电阈值。
    • 70. 发明授权
    • Image forming apparatus with bias and integral current control features
    • 具有偏置和积分电流控制特征的图像形成装置
    • US06990300B2
    • 2006-01-24
    • US10671690
    • 2003-09-29
    • Makoto SaitoTakeshi TomizawaJun Mochizuki
    • Makoto SaitoTakeshi TomizawaJun Mochizuki
    • G03G15/16
    • G03G15/1635
    • An image forming apparatus includes an image forming device for forming a toner image on an image bearing member, a transfer member for transferring the toner image from the image bearing member onto a transfer material by being supplied with a bias voltage, a bias voltage application device for applying a normal bias voltage of a polarity opposite to that of toner or a reverse bias voltage opposite in polarity to the normal bias voltage, a controller for controlling the bias voltage application device, and integral current detector for detecting an integral of an amount of a current flowing from the bias voltage application device to the transfer member. The integral current detector is capable of detecting an integral current amount of the normal bias voltage at the time of applying the normal bias voltage and an integral current amount of the reverse bias voltage at the time of applying the reverse bias voltage. The controller controls the bias voltage application device so that an absolute value of the integral current amount of the reverse bias voltage is in the range of not less than 0.2% and less than 25% of an absolute value of the integral current amount of the normal bias voltage.
    • 图像形成装置包括用于在图像承载部件上形成调色剂图像的图像形成装置,用于通过提供偏置电压将调色剂图像从图像承载部件转印到转印材料上的转印部件,偏置电压施加装置 为了施加与调色剂的极性相反的正常偏置电压或与正常偏置电压极性相反的反向偏置电压,用于控制偏置电压施加装置的控制器和用于检测偏置电压的积分的积分电流检测器 从偏置电压施加装置流向转印部件的电流。 积分电流检测器能够在施加正偏压时检测正常偏置电压的积分电流量,以及在施加反向偏置电压时检测反向偏置电压的积分电流量。 控制器控制偏置电压施加装置,使得反向偏置电压的积分电流量的绝对值在正常的积分电流的绝对值的绝对值的0.2%以上且小于25%的范围内 偏压。