公开(公告)号：US4948767A

公开(公告)日：1990-08-14

申请号：US356216

申请日：1989-05-24

申请人： Yoshihisa Ushida ,  Nobuki Hirai ,  Hiroshi Mase

发明人： Yoshihisa Ushida ,  Nobuki Hirai ,  Hiroshi Mase

IPC分类号： C04B35/493 ,  H01L41/187

CPC分类号： H01L41/187 ,  C04B35/493

摘要： The present invention relates to a ferroelectric ceramic material which is a Perovskite solid solution comprising a solid solution represented by the formula:Pb.sub.1-a M.sub.a (Mg.sub.1/3 p0 Nb.sub.2/3).sub.x Ti.sub.y Zr.sub.z O.sub.3containing in the solution at least one oxide selected from the group A noted below and at least one oxide selected from the group B noted below.Group A : La.sub.2 O.sub.3 and Nd.sub.2 O.sub.3 ;Group B : ZnO, SnO.sub.2 and Ta.sub.2 O.sub.5.The proposed ferroelectric ceramic material has a large piezoelectric strain constant d. The present invention is further directed to ferroelectric ceramic which is a Perovskite solid solution comprising a solid solution represented by the formula:Pb.sub.1 -aM.sub.a (Mg.sub.1/3 Nb.sub.2/3).sub.x Ti.sub.y Zr.sub.z O.sub.3wherein M is Ba or Sr, x+y+z is 1, a is from 0 to 0.10, x is from 0.05 to 0.70, y is from 0.25 to 0.50 and z is from 0.05 to 0.70, containing in the solution at least one oxide selected from the group A noted below and at least one oxide selected from the group B noted below, the solid solution further containing in the solid solution MnO.sub.2.Group A : La.sub.2 O.sub.3 and Nd.sub.2 O.sub.3 ;Group B : ZnO and SnO.sub.2.

公开(公告)号：US4940681A

公开(公告)日：1990-07-10

申请号：US356135

申请日：1989-05-24

申请人： Yoshihisa Ushida ,  Nobuki Hirai ,  Hiroshi Mase

发明人： Yoshihisa Ushida ,  Nobuki Hirai ,  Hiroshi Mase

IPC分类号： C04B35/493 ,  H01L41/187

CPC分类号： C04B35/493 ,  H01L41/187

摘要： The present invention relates to a ferroelectric ceramic material which is a Perovskite solid said solution comprising a solid solution represented by the formulaPb.sub.1-a M.sub.a (Mg.sub.1/3 Nb.sub.2/3).sub.x Ti.sub.y Zr.sub.z O.sub.3containing in the solution at least one oxide selected from the group A noted below and at least one oxide selected from the group B noted below, with the proviso that NiO or Fe.sub.2 O.sub.3 is necessarily contained.Group A: La.sub.2 O.sub.3, Bi.sub.2 O.sub.3 and Nd.sub.2 O.sub.3 ;Group B: NiO, Fe.sub.2 O.sub.3, SnO.sub.2 and Ta.sub.2 O.sub.5.The proposed ferroelectric ceramic material has a large piezoelectric strain constant d. The present invention is further directed to a ferroelectric ceramic which is a Perovskite solid solution comprising a solid solution represented by the formulaPb.sub.1-a M.sub.a (Mg.sub.1/3 Nb.sub.2/3).sub.x Ti.sub.y Zr.sub.z O.sub.3wherein M is Ba or Sr, x+y+z is 1, a is from 0 to 0.10, x is from 0.05 to 0.70, y is from 0.25 to 0.50 and z is from 0.05 to 0.70, containing in solution at least one oxide selected from group A noted below and at least one oxide selected from group B noted below, with the proviso that NiO, Fe.sub.2 O.sub.3 or Ta.sub.2 O.sub.5 is necessarily contained, the solid solution further containing in the solid solution MnO.sub.2.Group A: La.sub.2 O.sub.3, Bi.sub.2 O.sub.3 and Nd.sub.2 O.sub.3 ;Group B: NiO, ZnO, Fe.sub.2 O.sub.3, SnO.sub.2 and Ta.sub.2 O.sub.5.

公开(公告)号：US4830996A

公开(公告)日：1989-05-16

申请号：US218550

申请日：1988-07-13

申请人： Nobuki Hirai ,  Yoshihisa Ushida ,  Takao Ohno

发明人： Nobuki Hirai ,  Yoshihisa Ushida ,  Takao Ohno

IPC分类号： C04B35/493 ,  H01L41/187

CPC分类号： C04B35/493 ,  H01L41/187

摘要： Ferroelectric ceramics represented by xPbTiO.sub.3 -yPbZrO.sub.3 -zPb(Mg.sub.1/3 Nb.sub.2/3)O.sub.3 -mSrTiO.sub.3 -nSnO.sub.2 -pZnO-qBi.sub.2 O.sub.3 -rX wherein x,y,z,m,n,p,q and r represent amounts by mole, respectively, with the proviso that x+y+z being 1, Z is at least one oxide selected from the group consisting of Dy.sub.2 O.sub.3, Ta.sub.2 O.sub.5, and Y.sub.2 O.sub.3, and wherein x is from 0.25 to 0.50, y is from 0.05 to 0.70, z is from 0.05 to 0.70, m is from 0 to 0.10, n is from 0 to 0.04, p is from 0 to 0.04, q is from 0 to 0.02 and r is from 0.005 to 0.02. The disclosed ferroelectric ceramics have increased relative dielectric constant and/or electromechanical coupling factor, and are suitable for use as actuators.

公开(公告)号：US5079197A

公开(公告)日：1992-01-07

申请号：US599865

申请日：1990-10-19

申请人： Yoshihisa Ushida ,  Hiroshi Mase

发明人： Yoshihisa Ushida ,  Hiroshi Mase

IPC分类号： C04B35/49 ,  H01L41/187

CPC分类号： H01L41/187 ,  C04B35/49

摘要： The present invention relates to Perovskite ferroelectric ceramics comprising a Perovskite solid solution represented by the formulaPb.sub.1-(3/2)a M.sub.a {(Ni.sub.1/3 Nb.sub.2/3).sub.1-b (Zn.sub.1/3 Nb.sub.2/3).sub.b }.sub.x Ti.sub.y Zr.sub.z O.sub.3wherein M is at least one element selected from the group consisting of La and Nd, x+y+z is 1, said Perovskite solution containing MnO.sub.2.When compared with known ferroelectric ceramics, the ferroelectric ceramics according to the invention has a larger piezoelectric constant d and also a sufficiently high Curie temperature Tc, while having a mechanical quality factor Qm practically equal to that of the known ferroelectric ceramics. Accordingly, the ferroelectric ceramics according to the invention exhibit excellent characteristics when used in application such as a driving part of an actuator, for example, of an ultrasonic motor where mechanical resonance of the material used is utilized.

公开(公告)号：US5500142A

公开(公告)日：1996-03-19

申请号：US334123

申请日：1994-11-04

申请人： Yoshihisa Ushida ,  Hiroshi Mase

发明人： Yoshihisa Ushida ,  Hiroshi Mase

IPC分类号： C04B35/49 ,  C04B35/491 ,  H01L41/187 ,  C04B35/48

CPC分类号： H01L41/187 ,  C04B35/491

摘要： A piezoelectric ceramic is provided which comprises a perovskite-based solid solution represented by the formula:Pb.sub.1-a M.sub.a {(Ni.sub.1-b Zn.sub.b).sub.1/3 Nb.sub.2/3 }.sub.x Ti.sub.y Zr.sub.z O.sub.3wherein M represents Ba or Sr and x+y+z=1,the perovskite-based solid solution having, added thereto, La.sub.2 O.sub.3 or Nd.sub.2 O.sub.3, as a metallic oxide of Group A and NiO, Fe.sub.2 O.sub.3, SnO.sub.2 or Ta.sub.2 O.sub.5 as a metallic oxide of Group B. The piezoelectric ceramic of the present invention exhibits large value of piezoelectric constant d and high Curie point, so that it is useful as a material of a piezoelectric actuator.

摘要翻译： 提供了一种压电陶瓷，其包括由下式表示的钙钛矿型固溶体：Pb1-aMa {（Ni1-bZnb）1 / 3Nb2 / 3} xTiyZrzO3，其中M表示Ba或Sr，x + y + z = 1， 具有作为A组的金属氧化物的La 2 O 3或Nd 2 O 3的钙钛矿型固溶体，作为B组的金属氧化物的NiO，Fe 2 O 3，SnO 2或Ta 2 O 5。本发明的压电陶瓷的压电常数值 d和高居里点，因此它作为压电致动器的材料是有用的。

公开(公告)号：US4404341A

公开(公告)日：1983-09-13

申请号：US118325

申请日：1980-02-04

申请人： Yoshihisa Ushida ,  Akinori Toyota ,  Norio Kashiwa

发明人： Yoshihisa Ushida ,  Akinori Toyota ,  Norio Kashiwa

IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00 ,  C08F10/04

CPC分类号： C08F10/00 ,  Y10S526/905 ,  Y10S526/906

摘要： In a process for producing an olefin polymer or copolymer by polymerizing an alpha-olefin having at least 3 carbon atoms or copolymerizing such alpha-olefins with each other or such an alpha-olefin with up to 20 mole % of ethylene and/or a diene in the presence of a catalyst comprising (1) a solid titanium catalyst component having magnesium, halogen, titanium, phosphorus and a carboxylic acid ester and (2) an organometallic compound of a metal of Groups I to III of the Mendelejeff's periodic table; the improvement wherein said catalyst is composed of (A) the solid titanium catalyst component (1) in which the molar ratio of the phosphorus to the carboxylic acid ester is from about 0.05 to about 2 and which has a specific surface area of not less than about 40 m.sup.2 /g, (B) the organometallic compound (2), and (C) an electron donor; and a catalyst used for aforesaid process.

摘要翻译： 在通过聚合具有至少3个碳原子的α-烯烃或使这样的α-烯烃彼此共聚或这种α-烯烃与至多20摩尔％的乙烯和/或二烯烃共聚来制备烯烃聚合物或共聚物的方法中 在含有（1）具有镁，卤素，钛，磷和羧酸酯的固体钛催化剂组分的催化剂存在下，和（2）Mendelejeff周期表第I至III族金属的有机金属化合物; 其中所述催化剂由（A）固体钛催化剂组分（1）组成，其中磷与羧酸酯的摩尔比为约0.05至约2，并且其比表面积不小于 约40m2 / g，（B）有机金属化合物（2）和（C）电子给体; 和用于上述方法的催化剂。

公开(公告)号：US4221894A

公开(公告)日：1980-09-09

申请号：US951973

申请日：1978-10-16

申请人： Yoshihisa Ushida ,  Kiyoshi Odawara ,  Norio Kashiwa ,  Akinori Toyota ,  Syuji Minami

发明人： Yoshihisa Ushida ,  Kiyoshi Odawara ,  Norio Kashiwa ,  Akinori Toyota ,  Syuji Minami

IPC分类号： C08F4/02 ,  C08F4/64 ,  C08F10/00 ,  C08F10/06

CPC分类号： C08F10/00 ,  C08F4/022 ,  Y10S526/906

摘要： A process for polymerizing or copolymerizing .alpha.-olefins having at least 3 carbon atoms or copolymerizing .alpha.-olefins having at least 3 carbon atoms with not more than 50 mole % of ethylene in the presence of a catalyst composed of an organometallic compound of a metal of Groups I to III of the periodic table and a titanium catalyst component supported on a halogen-containing magnesium compound, said titanium catalyst component being a solid reaction product obtained by treating (i) a mechanically copulverized product of a halogen-containing compound and an organic acid ester with (ii) an organo-metallic compound of a metal of Groups I to III of the periodic table, and then reacting the resulting solid product with (iii) a titanium compound in the absence of mechanical pulverization.

摘要翻译： 在具有至少3个碳原子的α-烯烃或具有至少3个碳原子的α-烯烃与不超过50摩尔％的乙烯的聚合或共聚的催化剂的存在下，在由金属的有机金属化合物 元素周期表的I至III族和负载在含卤素的镁化合物上的钛催化剂组分，所述钛催化剂组分是通过处理（i）含卤素化合物和有机物的机械共缩合产物得到的固体反应产物 酸酯与（ⅱ）元素周期表第I至III族金属的有机金属化合物反应，然后在没有机械粉碎的情况下使得到的固体产物与（ⅲ）钛化合物反应。

公开(公告)号：US5583188A

公开(公告)日：1996-12-10

申请号：US229104

申请日：1994-04-18

申请人： Norio Kashiwa ,  Mamoru Kioka ,  Yoshihisa Ushida

发明人： Norio Kashiwa ,  Mamoru Kioka ,  Yoshihisa Ushida

IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/62 ,  C08F4/64 ,  C08F10/00 ,  C08F4/651 ,  C08F4/654

CPC分类号： C08F10/00

摘要： As improved process for producing an olefin polymer or copolymer by using a novel catalyst composition composed of (A) a titanium catalyst component containing magnesium, titanium, halogen and an ester specified in claim 1, as an electron donor, (B) an organoaluminum compound and (C) a heterocyclic compound or a ketone specified in claim 1, as a third component. The combination parameter of the ester in (A) and the (C) component is new, and the process can give a highly stereospecific olefin polymer or copolymer in high yields.

摘要翻译： 作为通过使用由（A）包含镁，钛，卤素和权利要求1所定义的酯的钛催化剂组分构成的新的催化剂组合物作为电子给体，（B）有机铝化合物 和（C）权利要求1所述的杂环化合物或酮作为第三成分。 （A）和（C）组分中的酯的组合参数是新的，并且该方法可以以高产率产生高度立体有择的烯烃聚合物或共聚物。

公开(公告)号：US4442276A

公开(公告)日：1984-04-10

申请号：US348176

申请日：1982-02-12

申请人： Norio Kashiwa ,  Yoshihisa Ushida

发明人： Norio Kashiwa ,  Yoshihisa Ushida

IPC分类号： C08F10/00 ,  C08F4/02

CPC分类号： C08F10/00

摘要： A process for polymerizing or copolymerizing olefins, which comprises polymerizing or copolymerizing olefins in the presence of a catalyst composed of (A) a solid titanium catalyst component obtained by reacting (i) a titanium composition composed essentially of tetravalent titanium, magnesium, halogen and an electron donor or electron donor residue selected from the group consisting of organic acid esters, alkoxy groups and aryloxy groups with (ii) an organic silicon compound having an Si--O--C bond in the molecule in the presence of (iii) an organoaluminum compound, or by first treating the titanium composition (i) with the organoaluminum compound (iii) and then reacting it with the organic silicon compound (ii), until the amount of the electron donor or electron donor residue in the titanium composition (i) decreases from that before the reaction, thus including a part of the silicon compound in the titanium composition, and; (B) an organoaluminum compound.

摘要翻译： 一种聚合或共聚烯烃的方法，其包括在催化剂存在下聚合或共聚烯烃，所述催化剂由（A）通过使（i）主要由四价钛组成的钛组合物，镁，卤素和 电子给体或电子给体残基，其选自有机酸酯，烷氧基和芳氧基，（ii）在（iii）有机铝化合物存在下，在分子中具有Si-OC键的有机硅化合物，或 首先用有机铝化合物（iii）处理钛组合物（i），然后使其与有机硅化合物（ii）反应，直到钛组合物（i）中的电子给体或电子给体残基的量从该组成 在反应之前，因此在钛组合物中包含硅化合物的一部分， （B）有机铝化合物。

公开(公告)号：US5614044A

公开(公告)日：1997-03-25

申请号：US416537

申请日：1995-04-03

申请人： Hiroyuki Nagayama ,  Yoshihisa Ushida

发明人： Hiroyuki Nagayama ,  Yoshihisa Ushida

IPC分类号： H01L41/083 ,  H01L41/273 ,  B32B18/00

CPC分类号： H01L41/273 ,  H01L41/0471 ,  H01L41/0838 ,  Y10T29/42

摘要： Laminated ceramic devices useful as an actuator or other device responsive to electrostrictive effects or photoelectric effects are manufactured by a method which includes the steps of forming an internal electrode on each of a plurality of unbaked ceramic sheets. Each of the internal electrodes is provided with a notched area for defining a so-called future space. A plurality of the unbaked ceramic sheets is assembled to form a laminate whereby the notched areas defining the future spaces are alternately located on two different sides of the laminate with the alternate notched areas being vertically aligned. The assembled plurality of ceramic sheets is then fired and the internal electrodes baked to thereby definitively form spaces defined by the notched areas which define the so-called future or void spaces. The resulting formed spaces are thereby alternatively located on different sides of the laminate. The device is completed by connecting first and second groups of alternating internal electrodes with respective external electrodes arranged along the different sides opposite to the corresponding respective spaces. As a result, each of the external electrodes is separated from the group of alternating internal electrodes to which it is not electrically connected by the resulting corresponding spaces. As a result, the laminated ceramic device is not or is less subject to concentration of stress due to uneven distribution of strain caused by application of an electric field whereby the durability of the laminated ceramic device is improved.

摘要翻译： 用作响应于电致伸缩效应或光电效应的致动器或其他装置的层压陶瓷装置通过包括在多个未烘烤的陶瓷片中的每一个上形成内部电极的步骤的方法制造。 每个内部电极设置有用于限定所谓的未来空间的凹口区域。 多个未烘烤的陶瓷片被组装以形成层压体，由此限定未来空间的缺口区域交替地位于层压板的两个不同侧面上，其中交替的切口区域垂直对准。 然后烧结组装的多个陶瓷片，并且烘烤内部电极，从而明确地形成由限定所谓的未来或空隙空间的缺口区限定的空间。 由此形成的所形成的空间可交替地位于层压板的不同侧面上。 通过将第一组和第二组交替的内部电极与沿着相应的相应空间相对的不同侧布置的相应的外部电极连接来完成该装置。 结果，每个外部电极与由其产生的相应空间未被电连接的一组交替的内部电极分离。 结果，层叠陶瓷器件由于施加电场而引起的应变不均匀分布，不会受到应力集中或较小的影响，从而提高了层叠陶瓷器件的耐久性。