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38 条记录 (耗时 0.032 秒)

    LED drive circuit
    5.
    发明授权
    LED drive circuit 失效
    LED驱动电路

    公开(公告)号：US08198834B2

    公开(公告)日：2012-06-12

    申请号：US12536211

    申请日：2009-08-05

    申请人： Yasuhiro Maruyama ,  Hiroyuki Shoji

    发明人： Yasuhiro Maruyama ,  Hiroyuki Shoji

    IPC分类号： H05B37/02

    CPC分类号： H05B33/0812 ,  H05B33/089 ,  Y02B20/341

    摘要： An LED drive circuit that drives an LED is provided with: a rectifying circuit that converts an alternating voltage into a pulsating current; a constant current circuit; and an over-temperature protection portion that limits an output of the constant current circuit, wherein the LED and the constant current circuit are connected in series on an output side of the rectifying circuit.

    摘要翻译： 驱动LED的LED驱动电路设置有：将交流电压转换为脉动电流的整流电路; 恒流电路; 以及限制恒流电路的输出的过温保护部，其中，LED和恒流电路串联连接在整流电路的输出侧。

    Heating apparatus and image forming apparatus having the same
    6.
    发明授权
    Heating apparatus and image forming apparatus having the same 有权
    加热装置和具有该加热装置的图像形成装置

    公开(公告)号：US08761627B2

    公开(公告)日：2014-06-24

    申请号：US13430329

    申请日：2012-03-26

    申请人： Yasuhiro Maruyama

    发明人： Yasuhiro Maruyama

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2039 ,  H05B1/0241

    摘要： A heating apparatus includes a heater, a current-feed switching circuit configured to switch turning-on/off of current-feeding from an AC power source to the heater, thereby feeding current from the AC power source to the heater at a predetermined current-feed ratio, a temperature detector configured to detect a heating temperature of the heater, anda current-feed controller configured to control the current-feed ratio of the current-feed switching circuit such that the detection temperature of the temperature detector falls within a target range. The current-feed controller performs at least one pair of ON lock current-feed control to fix the current-feed ratio to almost 100% in a first period and OFF lock current-feed control to fix the current-feed ratio to almost 0% in a second period every predetermined control period of the current-feed switching circuit.

    摘要翻译： 一种加热装置，包括加热器，电流供给切换电路，其配置为将交流电源的通电/断开从交流电源切换到加热器，从而将电流从交流电源以预定的电流 - 进料比，配置成检测加热器的加热温度的温度检测器;以及电流馈送控制器，其被配置为控制电流馈送开关电路的电流馈送比，使得温度检测器的检测温度落在目标 范围。 电流馈送控制器执行至少一对ON锁定电流馈送控制，以将电流馈送比率在第一周期内固定为几乎100％，并且OFF锁定电流馈送控制以将电流馈送比固定为几乎0％ 在电流馈送开关电路的每个预定控制周期的第二周期。

    Fixing Device
    7.
    发明申请
    Fixing Device 有权
    固定装置

    公开(公告)号：US20140086649A1

    公开(公告)日：2014-03-27

    申请号：US14018788

    申请日：2013-09-05

    申请人： Tomoaki Hazeyama ,  Yuji Nishigaki ,  Yasuhiro Maruyama

    发明人： Tomoaki Hazeyama ,  Yuji Nishigaki ,  Yasuhiro Maruyama

    IPC分类号： G03G15/20

    CPC分类号： G03G15/2053 ,  G03G15/2017 ,  G03G2215/2035

    摘要： A fixing device configured to thermally fix a developing agent image to a recording sheet includes a fixing belt having a tubular shape defining an inner space, a heat generating member, a nip member, and a stay which are disposed in the inner space of the fixing belt, and a rotating member disposed outside the inner space of the fixing belt. The fixing belt is nipped between the nip plate and the rotating member. The stay comprises a first receiving portion and a second receiving portion which are positioned upstream and downstream of the heat generating member, respectively, in a conveying direction of the recording sheet and are configured to receive a force exerted from the rotating member to the nip member. The heat insulator is disposed between the nip member and one of the first receiving portion and the second receiving portion of the stay.

    摘要翻译： 构造成将显影剂图像热固定到记录片材的定影装置包括具有限定内部空间的管状形状的定影带，发热元件，夹持部件和支架，所述定影带设置在固定件的内部空间中 带，以及设置在定影带的内部空间外侧的旋转构件。 定影带夹在夹板和转动件之间。 支架包括分别位于记录纸的输送方向上位于发热元件的上游和下游的第一接收部分和第二接收部分，并且被构造成接收从旋转部件施加到压印部件的力 。 隔热件设置在夹持构件与支架的第一容纳部分和第二容纳部分之一之间。

    Counter-rotating axial-flow fax
    8.
    发明授权
    Counter-rotating axial-flow fax 有权
    逆向旋转轴流传真

    公开(公告)号：US08172501B2

    公开(公告)日：2012-05-08

    申请号：US12104848

    申请日：2008-04-17

    申请人： Toshiya Nishizawa ,  Yasuhiro Maruyama ,  Hayato Murayama

    发明人： Toshiya Nishizawa ,  Yasuhiro Maruyama ,  Hayato Murayama

    IPC分类号： F04D25/06 ,  F04D25/16 ,  F04D19/02

    CPC分类号： F04D25/0613 ,  F04D19/007 ,  F04D19/024 ,  F04D29/522 ,  F04D29/646

    摘要： A support frame portion is divided into a first support-frame half-portion and a second support-frame half-portion along a virtual reference dividing plane. A raised portion is integrally formed with each of side walls in a pair of the first web half-portion, projecting toward the second web half-portion beyond the virtual reference dividing plane. A raised portion is integrally formed with each of side walls in a pair of the second web half-portion, projecting toward the first web half-portion beyond the virtual reference dividing plane. A recessed portion is formed in each of the side walls in the pair of the first web half-portion, and is fitted with the raised portion corresponding thereto of the second web half-portion. A recessed portion is formed in each of the side walls in the pair of the second web half-portion, and is fitted with the raised portion corresponding thereto of the first web half-portion.

    摘要翻译： 支撑框架部分沿着虚拟参考分割平面被分成第一支撑框架半部分和第二支撑框架半部分。 凸起部与一对第一腹板半部中的每个侧壁一体地形成，朝向第二腹板半部突出超过虚拟参考分割平面。 凸起部与一对第二腹板半部分中的每个侧壁一体地形成，朝向第一腹板半部突出超过虚拟参考分割平面。 在一对第一腹板半部分的每个侧壁中形成有凹部，并且与第二腹板半部对应的隆起部分配合。 在一对第二腹板半部分的每个侧壁中形成有凹部，并且与第一腹板半部对应的凸起部分配合。

    Pulse modulation light detection device, electronic apparatus, and pulse modulation light detection method
    10.
    发明申请
    Pulse modulation light detection device, electronic apparatus, and pulse modulation light detection method 审中-公开
    脉冲调制光检测装置，电子装置和脉冲调制光检测方法

    公开(公告)号：US20060108514A1

    公开(公告)日：2006-05-25

    申请号：US11283776

    申请日：2005-11-22

    申请人： Yasuhiro Maruyama

    发明人： Yasuhiro Maruyama

    IPC分类号： G06M7/00

    CPC分类号： G01S17/026 ,  G01S7/497 ,  G01S17/10

    摘要： A light emitting device for emitting pulse lights synchronized with a pulse signal is provided. A light receiving device for receiving the pulse lights reflected by or penetrating an object to be detected is provided. A signal processing circuit for detecting whether the object exists or not, based on a light receiving signal from the light receiving device. A synchronization timing circuit for generating the pulse signal used for emitting a plurality of pulse lights in one cycle is provided. The signal processing circuit detects the plurality of pulses and outputs a detection signal for indicating whether the object exists or not.

    摘要翻译： 提供了用于发射与脉冲信号同步的脉冲光的发光装置。 提供一种用于接收由待检测物体反射或穿透待检测物体的脉冲光的光接收装置。 一种信号处理电路，用于基于来自光接收装置的光接收信号检测对象是否存在。 提供了用于在一个周期中产生用于发射多个脉冲光的脉冲信号的同步定时电路。 信号处理电路检测多个脉冲，并输出用于指示对象是否存在的检测信号。