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    • 53. 发明授权
    • Power supply for a high frequency heating
    • 供电用于高频加热
    • US09301346B2
    • 2016-03-29
    • US12064911
    • 2006-08-25
    • Hideaki MoriyaHaruo SuenagaShinichi SakaiNobuo ShirokawaManabu Kinoshita
    • Hideaki MoriyaHaruo SuenagaShinichi SakaiNobuo ShirokawaManabu Kinoshita
    • H05B6/66H05B6/68
    • H05B6/681H05B6/666
    • A power supply for a high frequency heating is provided. When processes from a non-oscillation to an oscillation of a magnetron are finely classified, the non-oscillation (a start mode), the oscillation (a start mode), and the oscillation (a steady mode) are obtained. A problem resides in an unstable state immediately after the oscillation. When a PWM setting value at this time is set to a value lower than a PWM setting value in the steady mode, even if the PWM setting value during the steady mode is set to a maximum output value, the input current is not controlled to a large current including the over-shoot immediately after the oscillation. After the magnetron shifts to a stable state, the PWM setting value shifts to a PWM setting value of an actual steady mode, so that the over-shoot of the input current can be suppressed as much as possible.
    • 提供了用于高频加热的电源。 当从磁控管的非振荡到振荡的过程被精细地分类时,获得非振荡(起动模式),振荡(起动模式)和振荡(稳定模式)。 振荡后立即出现不稳定状态的问题。 当此时的PWM设定值被设定为比稳定模式下的PWM设定值低的值时,即使在稳定模式下的PWM设定值被设定为最大输出值,也不将输入电流控制为 包括震荡后立即过拍的大电流。 在磁控管移动到稳定状态之后,PWM设定值转移到实际稳定模式的PWM设定值,能够尽可能地抑制输入电流的过拍。
    • 54. 发明授权
    • Releasing device, fixing device and image forming apparatus
    • 释放装置,定影装置和图像形成装置
    • US08792814B2
    • 2014-07-29
    • US12554314
    • 2009-09-04
    • Mikio SaikiShinichi SakaiYasuhide SaitoTakeshi Nakaoka
    • Mikio SaikiShinichi SakaiYasuhide SaitoTakeshi Nakaoka
    • G03G15/20
    • G03G15/2028
    • A releasing device includes: a releasing unit that is made of a resin and disposed on a downstream side in a conveying direction of a recording medium from a fixing portion of a fixing unit which fixes a toner image on the recording medium, the releasing unit releasing the recording medium from the fixing unit; a supporting unit that supports the releasing unit on a supporting face and maintains the releasing unit and the fixing unit in a non-contact state; a screw that is advanced in a direction along the supporting face to secure the releasing unit; and a protruding portion provided between the releasing unit and the supporting unit and disposed at a position in a range extending from a first region between the screw and the supporting face to a second region shifted from the first region in a tightening direction side of the screw.
    • 一种释放装置包括:释放单元,其由树脂制成并且设置在记录介质的输送方向的下游侧,该定影单元将定影单元的固定部分固定在记录介质上,释放单元释放 来自定影单元的记录介质; 支撑单元,其将释放单元支撑在支撑面上并将释放单元和定影单元维持在非接触状态; 沿着所述支撑面的方向前进的螺钉,以固定所述释放单元; 以及突出部,其设置在所述释放单元和所述支撑单元之间并且设置在从所述螺钉和所述支撑面之间的第一区域延伸到从所述螺钉的紧固方向侧的所述第一区域偏移的第二区域的位置处 。
    • 59. 发明申请
    • STATE DETECTION DEVICE FOR DECTING OPERATION STATE OF HIGH-FREQUENCY HEATING APPARATUS
    • 用于分解高频加热装置操作状态的状态检测装置
    • US20090230949A1
    • 2009-09-17
    • US12159012
    • 2006-12-26
    • Hideaki MoriyaNobuo ShirokawaHaruo SuenagaShinichi SakaiManabu Kinoshita
    • Hideaki MoriyaNobuo ShirokawaHaruo SuenagaShinichi SakaiManabu Kinoshita
    • G01R29/00G01R19/00
    • H05B6/666H05B2206/043
    • An operating state detection technique is provided which makes it possible to accurately detect an abnormality of a high-frequency heating apparatus.An anode current detected by the anode current detection resistor 40 of a magnetron is inputted into the A/D converter terminal of a microcomputer 27 on a control panel circuit board side. The current is subjected to an analog-to-digital conversion to thereby obtain an anode voltage IaDC value. The microcomputer 27 determines an operating state based on a plurality of the anode voltage IaDC values thus read. Further, the microcomputer 27 obtains a summed value of the IaDC values corresponding to one period of the revolution of rotary antennas 68, 69 to thereby determines the operating state of the high-frequency heating apparatus 100 based on the summed value. According to the aforesaid IaDC value reading method, it makes it possible to accurately detect an abnormality without an erroneous operation also in correspondence to the change of the feeding distribution. Further, the microcomputer 27 changes, in accordance with the set output of the high-frequency heating apparatus, a threshold value used for determining the abnormality and a changing value (increasing amount) from the start of the operation with respect to the change of the output of the apparatus and the operating state of a heated subject etc., whereby it makes it possible to accurately detect an abnormality without an erroneous operation.
    • 提供了一种操作状态检测技术,其可以精确地检测高频加热装置的异常。 由磁控管的阳极电流检测电阻器40检测的阳极电流被输入到控制面板电路板侧的微计算机27的A / D转换器端子中。 对电流进行模数转换,得到阳极电压IaDC值。 微计算机27基于这样读取的多个阳极电压IaDC值来确定操作状态。 此外,微型计算机27获得与旋转天线68,69的一圈旋转相对应的IaDC值的相加值,从而基于求和值来确定高频加热装置100的运行状态。 根据上述IaDC值读取方法,能够根据馈送分配的变化,精确地检测异常而不发生错误的操作。 此外,微型计算机27根据高频加热装置的设定输出,根据操作开始时的变化来改变用于确定异常的阈值和变化值(增加量) 输出装置和加热对象的操作状态等,从而可以在没有错误操作的情况下精确地检测异常。
    • 60. 发明申请
    • INVERTER CONTROLLER AND HIGH-FREQUENCY DIELECTRIC HEATING APPARATUS
    • 逆变器控制器和高频电介质加热装置
    • US20090206073A1
    • 2009-08-20
    • US12305242
    • 2007-06-05
    • Manabu KinoshitaHaruo SuenagaKenji YasuiShinichi SakaiNobuo ShirokawaHideaki Moriya
    • Manabu KinoshitaHaruo SuenagaKenji YasuiShinichi SakaiNobuo ShirokawaHideaki Moriya
    • H05B6/66
    • H02M7/537H02H7/1213H02M1/32H05B6/683Y02B40/143
    • Occurrence of a defect of the moding phenomenon, etc., accompanying rise in output of a magnetron after power down control is prevented and the reliability of a high-voltage dielectric heating apparatus is further improved. After power down control, when the temperature of a thermistor T1 falls again, the resistance value of the thermistor T1 increases and potential Vpc at a point PC also rises and when the potential Vpc becomes higher than Vc3 of another input potential of a comparator C3 (Vpc>Vc3), the comparator C3 outputs “0.” In association with this, a switch S2 is turned off and PD (power down) 2 of a resistor R7 is turned off and thus the input voltage to a positive terminal A and a negative terminal B of a comparator C1 is again restored to 3 V. When the temperature of the thermistor T1 further falls, the resistance value of the thermistor T1 increases and the potential Vpc at the point PC also starts to rise. When the potential Vpc becomes higher than Vc2 of another input potential of a comparator C2, the comparator C2 outputs “0.” Then, a switch S5 turned on in the power down control is turned off through a switch S4 and an OR gate circuit and the partial pressure action of a resistor R11 does not work. The potential at a point SS starts to rise with charge storage in an electrolytic capacitor CO1. When the potential at the point SS continues to rise and exceeds 3 V, a comparator C4 outputs “1,” a NAND gate circuit outputs “0,” and a moving contact K1 is switched to the side of a second fixed terminal b. The input voltage to the positive terminal A, the negative terminal B of the comparator C1 starts to rise.
    • 伴随着断电控制后的磁控管的输出的上升,发生了模拟现象等的缺陷,并且进一步提高了高压电介质加热装置的可靠性。 断电控制后,当热敏电阻T1的温度再次下降时,热敏电阻T1的电阻值增加,点PC处的电位Vpc也上升,并且当电位Vpc变得高于比较器C3的另一个输入电位的Vc3时 Vcc> Vc3),比较器C3输出“0”。 与此相关联,开关S2断开,电阻器R7的PD(掉电)2断开,因此比较器C1的正端子A和负端子B的输入电压再次恢复到3V 当热敏电阻T1的温度进一步下降时,热敏电阻T1的电阻值增加,点PC处的电位Vpc也开始上升。 当电位Vpc变得高于比较器C2的另一个输入电位的Vc2时,比较器C2输出“0”。 然后,在断电控制中接通的开关S5通过开关S4和或门电路断开,并且电阻器R11的分压作用不起作用。 在电解电容器CO1中电荷存储时,点SS处的电位开始上升。 当点SS处的电位继续上升并超过3V时,比较器C4输出“1”,与非门电路输出“0”,并且移动触点K1切换到第二固定端子b侧。 对于正端子A的输入电压,比较器C1的负端子B开始上升。