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13 条记录 (耗时 0.026 秒)

    Piezoelectric ceramic composition
    5.
    发明授权
    Piezoelectric ceramic composition 失效
    压电陶瓷组合物

    公开(公告)号：US6004474A

    公开(公告)日：1999-12-21

    申请号：US40310

    申请日：1998-03-18

    申请人： Tadashi Takenaka ,  Masakazu Hirose ,  Kazuo Miyabe

    发明人： Tadashi Takenaka ,  Masakazu Hirose ,  Kazuo Miyabe

    IPC分类号： C04B35/495 ,  H01G4/12 ,  C04B35/453

    CPC分类号： H01L41/187 ,  C04B35/495 ,  H01G4/1227

    摘要： One object of the present invention is to provide a lead-free piezoelectric material excellent in piezoelectric characteristics and superior from the viewpoints of prevention of environmental pollution, protection of environments and ecology. To achieve the object, a piezoelectric ceramic composition is constructed from a piezoelectric ceramic composition within a region in case of being represented by the formula:x[Bi.sub.1/2 Na.sub.1/2 ]TiO.sub.3 -y[MeNbO.sub.3 ]-(z/2)[Bi.sub.2 O.sub.3.Sc.sub.2 O.sub.3 ](wherein Me is K or Na)wherein X, y and z satisfy the following conditions:x+y+z=1, 0

    摘要翻译： 本发明的一个目的是提供一种压电特性优异的无铅压电材料，并且从防止环境污染，环境保护和生态学的观点出发优越。 为了实现该目的，在由下式表示的区域内由压电陶瓷组合物构成压电陶瓷组合物：x [Bi1 / 2Na1 / 2] TiO3-y [MeNbO3] - （z / 2）[Bi2O3 （其中Me是K或Na）其中X，Y和z满足以下条件：x + y + z = 1,0

    Zinc oxide-based multilayer structural body and its producing method
    7.
    发明授权
    Zinc oxide-based multilayer structural body and its producing method 失效
    氧化锌基多层结构体及其制备方法

    公开(公告)号：US08257842B2

    公开(公告)日：2012-09-04

    申请号：US10569600

    申请日：2004-08-19

    申请人： Naoki Ohashi ,  Hajime Haneda ,  Haruki Ryoken ,  Isao Sakaguchi ,  Yutaka Adachi ,  Tadashi Takenaka

    发明人： Naoki Ohashi ,  Hajime Haneda ,  Haruki Ryoken ,  Isao Sakaguchi ,  Yutaka Adachi ,  Tadashi Takenaka

    IPC分类号： B32B19/00 ,  B32B9/00 ,  B05D1/36

    CPC分类号： H01L29/7787 ,  H01L29/225

    摘要： A zinc oxide semiconductor has a zinc oxide-based laminated structure including two layers of a zinc oxide layer with a lattice volume of Va and a donor concentration of Na, and a zinc oxide or zinc oxide solid solution layer with a lattice volume of Vb and a donor concentration of Nb. The relationships of Va Nb are satisfied. The layer with the lattice volume Va serves as a charge-supplying layer and the layer with the lattice volume Vb serves as a charge-receiving layer in the laminated structure. The charge is transferred from the layer serving as the charge-supplying layer to the layer serving as the charge-receiving layer even when no external electric field is applied to the laminated structure. A charge depletion layer is formed in the charge-supplying layer due to charge transfer from the charge-supplying layer to the charge-receiving layer.

    摘要翻译： 氧化锌半导体具有氧化锌系层叠结构，其包含晶格体积为Va且施主浓度为Na的氧化锌层和晶格体积为Vb的氧化锌或氧化锌固溶体层的两层，以及 供体浓度为Nb。 满足Va Nb的关系。 具有晶格体积Va的层用作电荷供给层，并且具有晶格体积Vb的层用作层压结构中的电荷接收层。 即使没有外部电场施加到层叠结构，电荷从用作电荷供给层的层转移到用作电荷接收层的层。 由于从电荷供给层到电荷接收层的电荷转移，在电荷供给层中形成电荷耗尽层。

    Pyroelectric ceramic composition and multilayered structure therefrom
    8.
    发明授权
    Pyroelectric ceramic composition and multilayered structure therefrom 失效
    热电陶瓷组合物及其多层结构

    公开(公告)号：US5032471A

    公开(公告)日：1991-07-16

    申请号：US551783

    申请日：1990-07-12

    申请人： Kouichirou Sakata ,  Tadashi Takenaka ,  Tamotsu Ueyama ,  Mikiya Ono

    发明人： Kouichirou Sakata ,  Tadashi Takenaka ,  Tamotsu Ueyama ,  Mikiya Ono

    IPC分类号： C04B35/493

    CPC分类号： C04B35/493

    摘要： A pyroelectric ceramic composition of the general formula: PbZr.sub.X (Zn.sub.1/3 Nb.sub.2/3).sub.Y Ti.sub.Z O.sub.3 wherein X+Y+Z=1 is provided having both of high pyroelectric constant and the second transition temperature below its Curie's temperature. Further, there is provided a multilayered pyroelectric structure comprising a stack of a plurality of layers, each of which has the different composition each to other, of the general formula: PbZr.sub.X (Zn.sub.1/3 Nb.sub.2/3).sub.Y Ti.sub.Z O.sub.3 wherein X+Y+Z=1, where the value of Z is different from each other in the different layers.

    摘要翻译： 提供具有以下通式的热电陶瓷组合物：其中X + Y + Z = 1的PbZrX（Zn1 / 3Nb2 / 3）YTiZO3具有高热电常数和低于其居里温度的第二转变温度。 此外，提供了一种多层热电结构，其包括多个层的堆叠，每个层具有与通式不同的其它组分：PbZrX（Zn1 / 3Nb2 / 3）YTiZO3，其中X + Y + Z = 1，其中Z的值在不同层中彼此不同。

    Brake disk producing method and brake disk
    9.
    发明授权
    Brake disk producing method and brake disk 有权
    制动盘制作方法及制动盘

    公开(公告)号：US08250898B2

    公开(公告)日：2012-08-28

    申请号：US12923587

    申请日：2010-09-29

    申请人： Tadashi Takenaka ,  Koji Tamura

    发明人： Tadashi Takenaka ,  Koji Tamura

    IPC分类号： B21D22/00 ,  B21D28/00

    CPC分类号： F16D65/12 ,  F16D2065/026 ,  F16D2065/1316 ,  F16D2065/1392 ,  F16D2069/004 ,  F16D2200/0017 ,  F16D2200/003 ,  F16D2250/0023

    摘要： A brake disk producing method, comprising a periphery pressing step for forming an outer peripheral shape (5) of a rotor plate (2) into a peripheral shape having recesses and ridges (5a, 5b) repeated in a radial direction, and a chamfering step for forming a chamfered surface (6) by pressing, against a corner portion (2d) on an outer peripheral edge of the rotor plate (2), a die (7), and a brake disk made by the method. Accordingly, it is possible to improve heat radiation capability, reduce the weight and moment of inertia, improve safety in handling, and suppress increase in production costs. Furthermore, by forming the chamfered surface (6), the amount of wear of a brake pad pressed by the brake disk (1) can be reduced, and durability of braking performance can be maintained or improved.

    摘要翻译： 1.一种制动盘的制造方法，其特征在于，包括：外周加压工序，用于将转子板（2）的外周形状（5）形成为具有沿径向重复的凹部（5a，5b）的周向形状，以及倒角工序 用于通过压在转子板（2）的外周边缘上的角部（2d）上形成倒角表面（6），模具（7）和由该方法制成的制动盘。 因此，能够提高散热能力，减轻重量和转动惯量，提高搬运安全性，抑制生产成本的增加。 此外，通过形成倒角表面（6），可以减少由制动盘（1）按压的制动衬块的磨损量，并且可以保持或改善制动性能的耐久性。

    Zinc oxide-based multilayer structural body and its producing method
    10.
    发明申请
    Zinc oxide-based multilayer structural body and its producing method 失效
    氧化锌基多层结构体及其制备方法

    公开(公告)号：US20070111033A1

    公开(公告)日：2007-05-17

    申请号：US10569600

    申请日：2004-08-19

    申请人： Naoki Ohashi ,  Hajime Haneda ,  Haruki Ryoken ,  Isao Sakaguchi ,  Yutaka Adachi ,  Tadashi Takenaka

    发明人： Naoki Ohashi ,  Hajime Haneda ,  Haruki Ryoken ,  Isao Sakaguchi ,  Yutaka Adachi ,  Tadashi Takenaka

    IPC分类号： B32B19/00 ,  B32B9/00 ,  B05D1/36

    CPC分类号： H01L29/7787 ,  H01L29/225

    摘要： The present invention is effective for causing charge separation by complexing zinc oxide crystals in different states one another when a zinc oxide semiconductor is used as an electronic element. The present invention provides a zinc oxide-based laminated structure comprising two layers of a zinc oxide or zinc oxide solid solution layer with a lattice volume of Va and a donor concentration of Na, and a zinc oxide or zinc oxide solid solution layer with a lattice volume of Vb and a donor concentration of Nb, wherein the relationships of Va Nb being satisfied between both layers of the laminated structures; and the layer with the lattice volume Va serves as a charge-supplying layer and the layer with the lattice volume Vb serves as a charge-receiving layer in the laminated structure. The charge is transferred from the layer serving as the charge-supplying layer to the layer serving as the charge-receiving layer even when no external electric field is applied to the laminated structure; and a charge depletion layer is formed in the charge-supplying layer due to charge transfer from the charge-supplying layer to the charge-receiving layer.

    摘要翻译： 当使用氧化锌半导体作为电子元件时，本发明对于通过使不同状态的氧化锌晶体络合而引起电荷分离是有效的。 本发明提供了一种氧化锌基层压结构，其包括晶格体积为Va且施主浓度为Na的氧化锌或氧化锌固溶体层和具有晶格的氧化锌或氧化锌固溶体层的两层 Vb的体积和Nb的供体浓度，其中满足层叠结构的两层之间的Va Nb的关系; 并且具有晶格体积Va的层用作电荷供给层，并且具有晶格体积Vb的层用作层压结构中的电荷接收层。 即使没有外部电场施加到层叠结构，电荷从用作电荷供应层的层转移到用作电荷接收层的层; 并且由于从电荷供给层到电荷接收层的电荷转移，在电荷供给层中形成电荷耗尽层。