公开(公告)号：US4831858A

公开(公告)日：1989-05-23

申请号：US130896

申请日：1987-12-10

申请人： Isamu Yoshizawa ,  Ginjiro Yanai ,  Seiichi Matsuda

发明人： Isamu Yoshizawa ,  Ginjiro Yanai ,  Seiichi Matsuda

IPC分类号： B21B13/06 ,  B21B35/10 ,  B21B35/14 ,  H02K7/00 ,  H02K7/14

CPC分类号： B21B35/14 ,  B21B13/06 ,  B21B35/10 ,  H02K7/003 ,  H02K7/14

摘要： A driving apparatus for a vertical rolling mill comprises a vertical electric motor mounted on a frame which has a hollow rotary shaft therein supported by a bearing and surrounding a portion of an intermediate shaft. The upper end of the intermediate shaft extends through the hollow rotary shaft and connects to a first universal joint disposed axially above the motor, and which engages the upper end of the hollow rotary shaft. The torque of the hollow rotary shaft is transmitted to the vertical roll through the first universal joint of the intermediate shaft, and a second universal joint.

摘要翻译： 立式轧机的驱动装置包括安装在框架上的垂直电动机，该框架具有由轴承支承并围绕中间轴的一部分的中空旋转轴。 中间轴的上端延伸穿过中空旋转轴并且连接到轴向位于马达上方的第一万向接头，并且与中空旋转轴的上端接合。 中空旋转轴的扭矩通过中间轴的第一万向接头和第二万向接头传递到垂直辊。

公开(公告)号：US4112798A

公开(公告)日：1978-09-12

申请号：US791050

申请日：1977-04-26

申请人： Isamu Yoshizawa ,  Hiroyuki Okubo ,  Hiroshi Isozaki ,  Tsutomu Hara ,  Bunpei Masuda

发明人： Isamu Yoshizawa ,  Hiroyuki Okubo ,  Hiroshi Isozaki ,  Tsutomu Hara ,  Bunpei Masuda

IPC分类号： B21B15/00 ,  B23D25/12

CPC分类号： B23D25/12 ,  Y10T83/4812 ,  Y10T83/4833 ,  Y10T83/4836

摘要： Both of the upper and lower blades carried by the upper and lower drums, respectively, or either of the upper or lower blade is so arranged as to partially describe a non-circular locus having the vertically extended major axis when complete shearing is effected.

公开(公告)号：US06117355A

公开(公告)日：2000-09-12

申请号：US320320

申请日：1999-05-26

申请人： Isamu Yoshizawa ,  Katsuhiro Horikawa ,  Koichi Hayashi ,  Akira Ando

发明人： Isamu Yoshizawa ,  Katsuhiro Horikawa ,  Koichi Hayashi ,  Akira Ando

IPC分类号： H01L41/09 ,  C04B35/46 ,  H01L41/113 ,  H01L41/187 ,  H03H9/17 ,  C04B35/499 ,  C04B35/472 ,  H01L41/08

CPC分类号： H01L41/187

摘要： Provided is a piezoelectric ceramic composition containing a lead titanate which has excellent temperature stability of the resonance frequency, and is suitable for application in a filter, a vibrator or the like, and a piezoelectric element using the piezoelectric ceramic composition. A piezoelectric substrate comprising a ceramic material containing PbTiO.sub.3 is provided with vibrating electrodes on the front and rear surfaces. The ceramic material containing PbTiO.sub.3 contains not less than about 0.1% by weight or more than about 3.0% by weight of Mn based on MnCO.sub.3 as the subcomponent in the main component having a composition satisfying 0.02.ltoreq.x.ltoreq.0.16 and 0.15.ltoreq.y.ltoreq.0.50 of the general formula Pb.sub.1-1.5x Nd.sub.x [(In.sub.1/2 Nb.sub.1/2).sub.y Ti.sub.1-y ]O.sub.3.

摘要翻译： 本发明提供一种压电陶瓷组合物，其含有具有优异的共振频率的温度稳定性的钛酸铅，适用于过滤器，振动器等，以及使用该压电陶瓷组合物的压电元件。 包含含有PbTiO 3的陶瓷材料的压电基板在前表面和后表面上设置有振动电极。 含有PbTiO 3的陶瓷材料含有不低于约0.1重量％或大于约3.0重量％的Mn，以MnCO3为主成分的副成分，其组成满足0.02≤x≤0.16且0.15 < 通式为Pb1-1.5xNdx [（In + E，fra 1/2 + EE Nb + E，fra 1/2 + EE）yTi1-y] O3的/=y

公开(公告)号：US06454959B1

公开(公告)日：2002-09-24

申请号：US09931496

申请日：2001-08-16

申请人： Isamu Yoshizawa ,  Katsuhiro Horikawa

发明人： Isamu Yoshizawa ,  Katsuhiro Horikawa

IPC分类号： C04B3500

CPC分类号： H03H9/02031 ,  C04B35/493 ,  H01L41/187

摘要： A piezoelectric ceramic material is provided which can form a sintered piezoelectric ceramic compact having a low electromechanical coupling coefficient, a low resonant resistance and a low temperature dependence of the resonant frequency. The piezoelectric ceramic material is a solid solution having a primary component composed of PbTiO3, PbZrO3 and Pb(MaXMdY)O3, in which Ma is at least one bivalent element or trivalent element, and Md is at least one pentavalent element or hexavalent element, and the ratio X/Y of the Ma content X to the Md content Y is larger than the stoichiometric ratio. Preferred is Ma being Mn, Md being at least one of Nb, Sb, Ta and W, and when the contents of Mn, Nb, Sb, Ta and W are represented by A, B, C, D and E, respectively, 0.525≦A/(B+C+D+2E)≦1, and about 20 mole percent or less of the element Pb being replaced by at least one of Ca, Ba, Sr and La. Preferably, a sintered compact is obtained by firing this piezoelectric ceramic material in an oxygen atmosphere at an oxygen concentration of about 80% by volume or more is used in an unsaturated polarized state having an electromechanical coupling coefficient corresponding to about 80% or less of that of a sintered compact in a saturated polarized state.

公开(公告)号：US06299791B1

公开(公告)日：2001-10-09

申请号：US09575402

申请日：2000-05-22

申请人： Isamu Yoshizawa ,  Katsuhiro Horikawa

发明人： Isamu Yoshizawa ,  Katsuhiro Horikawa

IPC分类号： H01L4118

CPC分类号： C04B35/491 ,  C02F1/461 ,  C02F1/4672 ,  H01L41/187

摘要： A piezoelectric ceramic material able to form a piezoelectric ceramic sintered body having such characteristics as a small electromechanical coupling coefficient, small resonant resistance and small temperature dependency of the resonant frequency that is required for designing a narrow-band filter is represented by principal component of the general formula of (PbaSrb)(ZrcTidMneNbf)O3 and having a composition satisfying the following relations of 0.93≦a≦1.01, 0.01≦b≦0.04, 0.37≦c≦0.47, 0.48≦d≦0.58, 0.0105≦e≦0.06, 0.02≦f≦0.06 and 1.05≦2e/f≦2, and comprising sub-components of about 0.003% to 0.1% by weight of each of SiO2 and Al2O3 relative to the principal component.

摘要翻译： 能够形成具有小型机电耦合系数，谐振电阻小，共振频率温和依赖性小的压电陶瓷烧结体的压电陶瓷材料是设计窄带滤波器所需要的。 （PbaSrb）（ZrcTidMneNbf）O3的通式，其组成满足以下关系：0.93 <= a <= 1.01,0.01 <= b <= 0.04,0.37 <= c <= 0.47，0.48 <= d <= 0.58 ，0.0105 <= e <= 0.06,0.02 <= f <= 0.06和1.05 <= 2e / f <= 2，并且包含相对于所述SiO 2和Al 2 O 3的各自为0.003重量％至0.1重量％ 主要成分。