Lactone-modified polyvinyl alcohol, a process for the preparation thereof
    122.
    发明授权
    Lactone-modified polyvinyl alcohol, a process for the preparation thereof 失效
    内酯改性的聚乙烯醇,其制备方法

    公开(公告)号:US5612412A

    公开(公告)日:1997-03-18

    申请号:US476676

    申请日:1995-06-07

    摘要: Disclosed are a lactone-modified polyvinyl alcohol and a process for the preparation thereof, a polymer composition, a permanently anti-electrostatic resin composition, a lactone-modified resin having hydroxyl groups, and a process for the preparation thereof.The lactone-modified polyvinyl alcohol can be used in wide fields owing to capability of freely adjusting a water solubility such as water-soluble, gradually water-soluble, low water-soluble, and water-insoluble by a degree modified by lactone compounds, and owing to possessing both properties in PVA and lactones.Furthermore, the lactone-modified polyvinyl alcohol has a property as plasticizers or softening agents, as a result, there can be provided a polymer composition having an excellent property by mixing with hydrophilic polymer or polar polymer.Still further, a blend resin composition in which a variety of resins are blended with the lactone-modified polyvinyl alcohol has an excellent permanently-anti-electrostatic property, and the resin composition having a permanently-anti-electrostatic property can be preferably employed as a variety of molded articles such as parts for electric appliances, textiles, films, etc.

    摘要翻译: 公开了内酯改性的聚乙烯醇及其制备方法,聚合物组合物,永久性抗静电树脂组合物,具有羟基的内酯改性树脂及其制备方法。 内酯改性的聚乙烯醇可以通过由内酯化合物改性的程度自由调节水溶性,逐渐水溶性,低水溶性和水不溶性的水溶性的能力而广泛使用,以及 由于在PVA和内酯中具有两者性质。 此外,内酯改性的聚乙烯醇具有增塑剂或软化剂的性质,结果可以提供通过与亲水性聚合物或极性聚合物混合而具有优异性能的聚合物组合物。 此外,其中各种树脂与内酯改性的聚乙烯醇共混的共混树脂组合物具有优异的永久防静电性,并且可以优选使用具有永久抗静电性的树脂组合物作为 各种模制品如电器,纺织品,薄膜等部件

    Recording device capable of reading out data from a disk for editing and
recording back to the disk
    123.
    发明授权
    Recording device capable of reading out data from a disk for editing and recording back to the disk 失效
    能够从盘读出数据进行编辑和记录回到磁盘的记录装置

    公开(公告)号:US5586093A

    公开(公告)日:1996-12-17

    申请号:US496874

    申请日:1995-06-30

    摘要: In the editing mode where data is read out from a disk for a desired editing process and the thus-edited data is recorded back onto the disk, the data readout from and recording onto the disk are performed alternately. At storage locations of a memory previously occupied by data read out and supplied for reproduction, there are sequentially stored compressed data to be recorded that have been obtained from editing the read-out data. Data readout from the disk is performed until the data stored unread in the memory reaches a predetermined amount. When the data amount in the memory has reached the predetermined amount, the data are read out from the memory and recorded onto the disk by a predetermined unit amount.

    摘要翻译: 在从盘读出所需编辑处理的数据的编辑模式中,将由此编辑的数据记录回到盘上,从盘上读出和记录在盘上的数据交替地执行。 在先前由读出并提供用于再现的数据占据的存储器的存储位置处,依次存储从编辑读出数据获得的待记录的压缩数据。 执行从磁盘读出的数据,直到在存储器中未读出的数据达到预定量。 当存储器中的数据量达到预定量时,从存储器中读出数据并以预定单位量记录到盘上。

    Image forming apparatus and process cartridge detachable thereto with
charging member pressure contact release feature
    124.
    发明授权
    Image forming apparatus and process cartridge detachable thereto with charging member pressure contact release feature 失效
    图像形成装置和处理盒,其与充电部件压力接触释放特征可拆卸

    公开(公告)号:US5465136A

    公开(公告)日:1995-11-07

    申请号:US215734

    申请日:1994-03-22

    申请人: Kazushi Watanabe

    发明人: Kazushi Watanabe

    IPC分类号: G03G15/00 G03G15/02 G03G21/18

    摘要: In a process cartridge detachable from an image forming apparatus, presssure contact between a charging member, and an image bearing member for bearing an image can be released. Hence, it is possible to prevent the occurrence of traces caused by pressure, creep, and contamination in the image bearing member and the charging member. In addition, by arranging so that the process cartridge cannot be mounted in the image forming apparatus in a state in which the pressure contact between the charging member and the image bearing member is released, failure in charging on the image bearing member by the charging member can be prevented.

    摘要翻译: 在可从图像形成装置拆卸的处理盒中,可以释放充电构件和用于承载图像的图像承载构件之间的压力接触。 因此,可以防止在图像承载部件和充电部件中产生由压力,蠕变和污染引起的痕迹。 此外,通过这样布置,使得处理盒不能安装在图像形成装置中,在充电构件和图像承载构件之间的压力接触被释放的状态下,充电构件对图像承载构件的充电失败 可以防止。

    Starting circuit of self-excited inverter
    127.
    发明授权
    Starting circuit of self-excited inverter 失效
    自激逆变器启动电路

    公开(公告)号:US4888672A

    公开(公告)日:1989-12-19

    申请号:US288793

    申请日:1988-11-18

    IPC分类号: H02M7/537 H02M3/338

    CPC分类号: H02M3/338

    摘要: When the power source voltage is charged to a capacitor between the source side of a MOSFET and a saturation reactor at the time of starting, the gate voltage of the MOSFET is caused to rise. When this charging voltage or the gate voltage exceeds the threshold voltage, the MOSFET is energized. The energization of this MOSFET induces a voltage in the tertiary self-excited oscillation winding through the primary winding, and a part of the induced voltage is applied to the gate of the MOSFET while some other part is applied to the reactor. This causes the magnetic flux of the saturation reactor to be set to the direction opposite that which had been set before. When the product of the voltages applied to the saturation reactor has reached the level for the allowable saturation magnetic flux density the saturation reactor is saturated and the gate voltage is discharged to turn off the MOSFET. When the MOSFET is energized once, the setting and resetting of the saturation reactor is repeated alternately due to the actions of the primary winding and the tertiary self-excited winding to enter the state of stable operation.

    摘要翻译: 当电源电压在MOSFET的源极侧与饱和电抗器之间的电容器充电时,MOSFET的栅极电压升高。 当该充电电压或栅极电压超过阈值电压时,MOSFET通电。 该MOSFET的通电在通过初级绕组的三次自激振荡绕组中产生电压,并且将一部分感应电压施加到MOSFET的栅极,而另一些部分被施加到反应器。 这使得饱和电抗器的磁通量被设定为与之前设置的方向相反的方向。 当施加到饱和电抗器的电压的乘积达到容许饱和磁通密度的水平时,饱和电抗器饱和,并且栅极电压被放电以关断MOSFET。 当MOSFET通电一次时,由于初级绕组和三次自励绕组的动作进入稳定运行状态,饱和电抗器的设定和复位交替重复。

    Full-wave output type forward converter
    128.
    发明授权
    Full-wave output type forward converter 失效
    全波输出型正激转换器

    公开(公告)号:US4787020A

    公开(公告)日:1988-11-22

    申请号:US156208

    申请日:1988-02-16

    IPC分类号: H02M3/28 H01F27/28 H02M3/335

    CPC分类号: H02M3/33553

    摘要: Disclosed is a full-wave output type forward converter wherein a main transformer having a primary winding connected in series with a switching element includes two secondary windings as winding halves divided by a center tap and electromagnetically coupled. A leakage self inductance can be reduced to obtain a high-frequency, high-power arrangement.

    摘要翻译: 公开了一种全波输出型正激变换器,其中具有与开关元件串联连接的初级绕组的主变压器包括两个次级绕组,作为被中心抽头除以电磁耦合的二次绕组。 可以减小泄漏自感以获得高频,高功率的布置。