Display device and electronic equipment employing piezoelectric speaker
    1.
    发明授权
    Display device and electronic equipment employing piezoelectric speaker 失效
    显示装置和采用压电扬声器的电子设备

    公开(公告)号:US06794798B2

    公开(公告)日:2004-09-21

    申请号:US10106118

    申请日:2002-03-27

    IPC分类号: H01L4108

    CPC分类号: H04R5/02 H04R2499/15

    摘要: A display device and an electronic equipment having a high reproduction quality can be provided without hampering the scalability or the portability of the display device and the electronic equipment. A notebook computer includes a main body, a keyboard, a display device and a display panel. The display panel is formed of a flat type, which is made of an LCD or a PDP. The display device can be folded toward or folded away from the keyboard side of the main body. The speaker panel is completely formed as a planar shape and is movably installed with respect to a reception slit prepared at two side surfaces of the display device. The speaker panel is movably jointed to allow a relative position between the flat panel display and the speaker panel to be changed by moving the speaker panel.

    摘要翻译: 可以提供具有高再现质量的显示设备和电子设备,而不会妨碍显示设备和电子设备的可扩展性或可移植性。 笔记本电脑包括主体,键盘,显示装置和显示面板。 显示面板由LCD或PDP制成的平板型。 显示装置可以朝向或折叠离开主体的键盘侧折叠。 扬声器面板完全形成为平面形状,并相对于在显示装置的两个侧表面处制备的接收狭缝可移动地安装。 扬声器面板可移动地连接以允许通过移动扬声器面板来改变平板显示器和扬声器面板之间的相对位置。

    Multilayer piezoelectric transformer
    2.
    发明授权
    Multilayer piezoelectric transformer 失效
    多层压电变压器

    公开(公告)号:US06452313B2

    公开(公告)日:2002-09-17

    申请号:US09823552

    申请日:2001-03-30

    IPC分类号: H01L41047

    CPC分类号: H01L41/107

    摘要: A piezoelectric transformer comprises one or more input parts having first internal electrodes and input terminals and an output part having second internal electrodes and output terminals. Each of the second internal electrodes has an area larger than that of each of the first internal electrodes. By such configuration, output power is increased while heat generation is suppressed and size thereof is not increased.

    摘要翻译: 压电变压器包括具有第一内部电极和输入端子的一个或多个输入部件和具有第二内部电极和输出端子的输出部件。 每个第二内部电极具有比每个第一内部电极的面积大的面积。 通过这样的结构,能够抑制发热,并且不增大发电量,从而提高输出功率。

    Piezoelectric transformer
    3.
    发明授权
    Piezoelectric transformer 失效
    压电变压器

    公开(公告)号:US06346762B2

    公开(公告)日:2002-02-12

    申请号:US09823551

    申请日:2001-03-30

    IPC分类号: H01L4108

    CPC分类号: H01L41/107

    摘要: The piezoelectric transformer obtains large output powers by way of reducing the heat generation. The piezoelectric transformer includes one or more input parts and an output part. Each of the input parts is formed of alternately stacked piezoelectric sheets and internal electrodes. Each piezoelectric sheet has a first region on which the internal electrode is formed and a second region on which no internal electrode is formed. Each of the input parts includes means for reducing stress concentration around boundary regions between the first and the second regions.

    摘要翻译: 压电变压器通过减少发热量获得大的输出功率。 压电变压器包括一个或多个输入部分和输出部分。 每个输入部分由交替堆叠的压电片和内部电极形成。 每个压电片具有形成内部电极的第一区域和不形成内部电极的第二区域。 每个输入部分包括用于减小在第一和第二区域之间的边界区域周围的应力集中的装置。

    Vitreous silica crucible for pulling silicon single crystal
    5.
    发明授权
    Vitreous silica crucible for pulling silicon single crystal 有权
    硅玻璃坩埚用于拉硅单晶

    公开(公告)号:US08715415B2

    公开(公告)日:2014-05-06

    申请号:US12752374

    申请日:2010-04-01

    IPC分类号: C30B15/10

    摘要: Provided is a vitreous silica crucible for pulling silicon single crystals, which can melt a silicon raw material in a short time and improve production yield of silicon single crystals by temporal change of an opaque vitreous silica layer. The vitreous silica crucible includes an opaque vitreous silica layer(11) provided on an outer surface thereof and containing plural bubbles, and a transparent vitreous silica layer(12) provided on an inner surface and not containing bubbles substantially. The opaque vitreous silica layer(11) has a bubble diameter distribution in which the content of bubbles having a diameter of less than 40 μm is 10% or more and less than 30%, the content of bubbles having a diameter of 40 μm or more and less than 90 μm is 40% or more and less than 80%, and the content of bubbles having a diameter equal to or more than 90 μm is 10% or more and less than 30%. Relatively small bubbles contained in the opaque vitreous silica layer(11) contribute to the thermal conductivity of a crucible at an initial pulling stage, and relatively large bubbles contained in the opaque vitreous silica layer are expanded through a long-term pulling process to thereby largely contribute to the warmth retaining property of the crucible at a later pulling stage.

    摘要翻译: 本发明提供一种用于拉伸硅单晶的石英玻璃坩埚,其可以在短时间内熔化硅原料,并且通过不透明氧化硅玻璃层的时间变化提高硅单晶的产率。 石英玻璃坩埚包括设置在其外表面并且包含多个气泡的不透明玻璃状石英层(11),以及设置在内表面上且基本上不含有气泡的透明玻璃状石英层(12)。 不透明玻璃状石英层(11)具有气泡直径分布,其中直径小于40μm的气泡的含量为10%以上且小于30%,气泡的直径为40μm以上 小于90μm的是40%以上且小于80%,直径等于或大于90μm的气泡的含量为10%以上且小于30%。 包含在不透明玻璃状二氧化硅层(11)中的相对小的气泡有助于在初始拉伸阶段的坩埚的导热性,并且通过长期拉伸工艺使包含在不透明玻璃状二氧化硅层中的相对大的气泡膨胀,从而大大地扩大 有助于在稍后的拉动阶段坩埚的保温性能。

    Silica glass crucible
    8.
    发明授权
    Silica glass crucible 有权
    二氧化硅玻璃坩埚

    公开(公告)号:US08449676B2

    公开(公告)日:2013-05-28

    申请号:US12430311

    申请日:2009-04-27

    摘要: A silica glass crucible having a sidewall portion and a bottom portion is provided with a first synthetic silica glass layer constituting an inner layer at least in the sidewall portion, a second synthetic silica glass layer constituting an inner layer at least in a region including a center of the bottom portion, and a natural silica glass layer constituting an outer layer in the sidewall portion and the bottom portion. A melting rate of the second synthetic silica glass layer with respect to a silicon melt is higher than that of the first synthetic silica glass layer. An aluminum concentration of the second synthetic silica glass layer is higher than that of the first synthetic silica glass layer.

    摘要翻译: 具有侧壁部和底部的石英玻璃坩埚具有至少在侧壁部中构成内层的第一合成石英玻璃层,至少在包括中心的区域中构成内层的第二合成石英玻璃层 和在侧壁部和底部构成外层的天然石英玻璃层。 第二合成石英玻璃层相对于硅熔体的熔融率高于第一合成石英玻璃层的熔融速度。 第二合成石英玻璃层的铝浓度高于第一合成石英玻璃层的铝浓度。

    Vitreous silica crucible manufacturing apparatus
    9.
    发明授权
    Vitreous silica crucible manufacturing apparatus 有权
    硅玻璃坩埚制造设备

    公开(公告)号:US08240169B2

    公开(公告)日:2012-08-14

    申请号:US12684178

    申请日:2010-01-08

    IPC分类号: C03B19/06 H05B7/22

    CPC分类号: C03B19/095 H05B7/085

    摘要: A vitreous silica crucible manufacturing apparatus includes a plurality of carbon electrodes configured to heat and melt raw material powder by arc discharge, and a value of a ratio R2/R1 of a diameter R2 of a front end of each of the carbon electrodes to a diameter R1 of a base end is set in a range of 0.6 to 0.8. Each carbon electrode has a diameter reduction portion formed at a front end position and reduced in diameter from a diameter R3 of a base end side to the diameter R2 of the front end. When a length of the diameter reduction portion is L1, the diameter of the front end is R2, the diameter of the base end is R1, an angle between the axis lines of the carbon electrodes is θ1, and X=(R1−R2)/2, a value of L1−(X/tan(θ1/2)) is set in a range of 50 to 150 mm.

    摘要翻译: 玻璃状石英玻璃坩埚的制造装置具有多个碳电极,其通过电弧放电来加热和熔化原料粉末,并且每个碳电极的前端的直径R2的比R2 / R1的值与直径 基端的R1设定在0.6〜0.8的范围内。 每个碳电极具有形成在前端位置并且从基端侧的直径R3到前端的直径R2的直径减小的直径减小部分。 当直径减小部分的长度为L1时,前端的直径为R2,基端的直径为R1,碳电极的轴线之间的角度为1; X =(R1- R2)/ 2,将L1-(X / tan(& 1/2))的值设定在50〜150mm的范围内。