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1. 发明专利

JP2005035843A Piezoelectric ceramics, sintering aid, and laminated piezoelectric element 审中-公开
标题翻译：压电陶瓷，烧结助剂和层压压电元件
公开(公告)号：JP2005035843A
公开(公告)日：2005-02-10
申请号：JP2003274821
申请日：2003-07-15
申请人： Taiheiyo Cement Corp , 太平洋セメント株式会社
发明人： AIDA SATORU , YAMAKAWA TAKAHIRO
IPC分类号： C04B35/49 , C04B35/491 , H01L41/083 , H01L41/187 , H01L41/22 , H01L41/297 , H01L41/39 , H01L41/43 , H01L41/24
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric ceramics capable of sintering at a low temperature, a sintering aid to be used by adding to the piezoelectric ceramics, and a laminated piezoelectric element using the piezoelectric ceramics. SOLUTION: This piezoelectric ceramics is represented by a general formula: ABO 3 , wherein site A is mainly composed of lead, and site B is mainly composed of zirconium and titanium, and not lower than 0.02 wt% but not higher than 0.4 wt% in total of lead oxide and vanadium oxide are added thereto as sintering agents. It can be sintered at not higher than 1,000°C, and has an electromechanical coupling factor Kr of not smaller than 0.6. Thus, an inner electrode paste having not smaller than 9 Ag/Pd ratio can be used for manufacturing a laminated piezoelectric element using simultaneous sintering method. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种能够在低温下烧结的压电陶瓷，通过添加到压电陶瓷中使用的烧结助剂和使用压电陶瓷的层叠压电元件。
解决方案：该压电陶瓷由以下通式表示：ABO 3 ，其中位置A主要由铅组成，位置B主要由锆和钛组成，不低于0.02 加入氧化铅和氧化钒的总重量％但不高于0.4重量％作为烧结剂。可以在不高于1000℃下烧结，并且机电耦合系数Kr不小于0.6。因此，可以使用不小于9 Ag / Pd比的内部电极浆料来制造使用同时烧结方法的层压型压电元件。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JP2003282990A Piezoelectric transformer 审中-公开
标题翻译：压电变压器
公开(公告)号：JP2003282990A
公开(公告)日：2003-10-03
申请号：JP2002087934
申请日：2002-03-27
申请人： Taiheiyo Cement Corp , 太平洋セメント株式会社
发明人： YAMAKAWA TAKAHIRO , WATANABE MASAYUKI , SEKI JUNKO , FUKUNAGA RYOICHI , TSUKAMOTO TATSUJI
IPC分类号： H01L41/107
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric transformer whose power loss is small.
SOLUTION: The piezoelectric transformer 1 has a constitution wherein a primary side piezoelectric plate 2 and a secondary side piezoelectric plate 3 are laminated, a ground electrode 4 is arranged between the plates 2 and 3, an input electrode 5 is arranged on a surface of the plate 2 and an output electrode 6 is arranged on a surface of the plate 3. An input voltage is increased and decreased by stretching vibration in a longitudinal direction. By setting the amount of deviation in the longitudinal direction of the plate 2 and the plate 3 as at most 2% of the whole length of the piezoelectric transformer 1, power loss is restrained.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供功率损耗小的压电变压器。解决方案：压电变压器1具有层叠原始侧压电板2和次级侧压电板3的结构，在板2,3间布置有接地电极4，输入电极5布置在板2的表面和输出电极6布置在板3的表面上。通过在纵向上的伸缩振动来增加和减小输入电压。通过将板2和板3的长度方向的偏差量设定为压电变压器1的全长的2％以下，能够抑制功率损失。版权所有（C）2004，JPO

3. 发明专利

JP2002299715A PIEZOELECTRIC TRANSFORMER 失效
公开(公告)号：JP2002299715A
公开(公告)日：2002-10-11
申请号：JP2001094969
申请日：2001-03-29
申请人： TAIHEIYO CEMENT CORP
发明人： WATANABE MASAYUKI , YAMAKAWA TAKAHIRO , ASUMI KAZUMASA , FUKUNAGA RYOICHI , SEKI JUNKO , IWAKI NORIFUMI , KATO TOMOYOSHI
IPC分类号： H01L41/107
摘要： PROBLEM TO BE SOLVED: To provide a piezoelectric transformer the thickness of which little increases even when the piezoelectric material is provided with a U-shaped continuity member as a component, and in addition, which can obtain a necessary electrical characteristics. SOLUTION: This piezoelectric transformer is provided with a piezoelectric element 1, a first input electrode 2 provided on the top face of the element 1, and a second input electrode 3, provided on the bottom face of the element 2. This transformer is also provided with the U-shaped continuity member 4, which is positioned to clamp the body section of the transformer composed of the element 1 and input electrodes 2 and 3. In the edge section of the top face of the element 1, a recessed section 1a is formed and the edge section 4a of the member 4, corresponding to the top face of the element 1, is housed in the recessed section 1a in a state where the section 4a is insulated from the first input electrode 2.

4. 发明专利

JP2002118302A PIEZOELECTRIC ACTUATOR AND ITS MANUFACTURING METHOD 失效
公开(公告)号：JP2002118302A
公开(公告)日：2002-04-19
申请号：JP2000308988
申请日：2000-10-10
申请人： JAPAN SCIENCE & TECH CORP , TAIHEIYO CEMENT CORP
发明人： OMI TADAHIRO , KUBOTA HIROSHI , YAMAKAWA TAKAHIRO , ASUMI KAZUMASA , WATANABE MASAYUKI , FUKUNAGA RYOICHI , SEKI JUNKO
IPC分类号： H01L41/083 , H01L41/22 , H01L41/257 , H01L41/29
摘要： PROBLEM TO BE SOLVED: To provide a stacked piezoelectric actuator which is used for an X-Y stage, a linear motor, a rotating motor, a carrier such as a parts feeder, etc., or the like, and drives it, making use of shearing deformation (mode 15), and its manufacturing method. SOLUTION: A piezoelectric actuator 10 has such construction that piezoelectric substance 12 and electrodes where a plurality of conductors 11 are put side by side at specified intervals roughly in parallel are stacked alternately in thickness direction of the piezoelectric substance 12. The piezoelectric substance 12 is polarized in a direction roughly orthogonal to the thickness direction of itself, and shearing transformation occurs in the piezoelectric substance 12 by applying drive voltage between the electrodes which face each other, catching the piezoelectric substance 12 in stack direction.

5. 发明专利

JP2001274474A CASING STRUCTURE OF PIEZOELECTRIC TRANSFORMER 失效
公开(公告)号：JP2001274474A
公开(公告)日：2001-10-05
申请号：JP2000084981
申请日：2000-03-24
申请人： TAIHEIYO CEMENT CORP
发明人： FUKUNAGA RYOICHI , YAMAKAWA TAKAHIRO
IPC分类号： H01L41/107
摘要： PROBLEM TO BE SOLVED: To provide a casing structure of a piezoelectric transformer, wherein no noise occurs at on/off control at a frequency within the audible range while the height (thickness) of a case is reduced. SOLUTION: The casing structure is provided to arrange a piezoelectric transformer 1 in a case 2. Wirings 9 and 10 are installed along the inside surface of a case 1, and the wirings 9 and 10 and terminals 3 and 4 of the piezoelectric transformer 1 are connected together through a conductive member 8 which comprises a conductor wire 11 and an elastic body 12 for supporting the conductor wire 11 in buried state. The conductor wire 11 forming the conductive member 8 provides continuity between the wirings 9 and 10 and the terminals 3 and 4 of the piezoelectric transformer 1.

6. 发明专利

JP2001206800A ZINC OXIDE SINGLE CRYSTAL AND METHOD OF PRODUCING THE SAME 失效
公开(公告)号：JP2001206800A
公开(公告)日：2001-07-31
申请号：JP2000016698
申请日：2000-01-26
申请人： TAKADA MASASUKE , TAIHEIYO CEMENT CORP
发明人： TAKADA MASASUKE , TAKANO SHINGO , NEZAKI MASARU , YAMAKAWA TAKAHIRO , OGAWA KENJI
IPC分类号： C30B29/62
摘要： PROBLEM TO BE SOLVED: To provide a zinc oxide single crystal which has a superfine wire-like form or a nearly triangular wave-shaped form and spherical bodies of metal attached to its tip ends and which is suitably used as a sensor, a laser oscillation element, a probe or the like and to provide a method of producing the same. SOLUTION: A whisker-like zinc oxide single crystal at whose tip ends spherical bodies or semi-spherical bodies containing a metal being hardly oxidized at a high temperature are present in the continuous state and whose diameter is smaller than the diameters of the spherical bodies or the semi-spherical bodies, can be deposited by heating the metal being hardly oxidized at the high temperature, under the atmosphere and simultaneously generating the vapor of zinc or zinc oxide in the vicinity of the metal.

7. 发明专利

JP2001015957A CASE STRUCTURE FOR PIEZOELECTRIC TRANSFORMER ELEMENT 失效
公开(公告)号：JP2001015957A
公开(公告)日：2001-01-19
申请号：JP18071399
申请日：1999-06-25
申请人： TAIHEIYO CEMENT CORP
发明人： KATAOKA MASAKO , YAMAKAWA TAKAHIRO
IPC分类号： H05K7/12 , H01L41/107
摘要： PROBLEM TO BE SOLVED: To obtain a case structure for a piezoelectric transformer element, which can prevent damage to lead wires connecting the piezoelectric transformer element to the external connection terminals of a case, even when the transformer element fixed to the case comes off the case. SOLUTION: The input electrodes 2 and output electrode 3 of a piezoelectric transformer element 1 housed in a case 11 through supporting members 4 are respectively connected to the metallic connecting surfaces 12a and 13a for soldering the outside connection terminals 12 and 13 of the case 11 through soldered lead wires 15. The connecting surfaces 12a and 13a are formed at positions, at which the distances L1 between the outer margin section of the opening of the case 11 and the connecting surfaces 12a and 13a become shorter than the distance L2 between the longitudinal end section of the transformer element 1 at the opening side and the outer margin section of the opening in a prescribed (normal) state shown in the figure.

8. 发明专利

JPH11261122A LAMINATED PIEZOELECTRIC ELEMENT AND ITS MANUFACTURE 失效
公开(公告)号：JPH11261122A
公开(公告)日：1999-09-24
申请号：JP6321198
申请日：1998-03-13
申请人： CANON KK , TAIHEIYO CEMENT CORP
发明人： MARUYAMA YUTAKA , KOJIMA NOBUYUKI , YAMAKAWA TAKAHIRO , EZAKI TORU
IPC分类号： H01L41/083 , H01L41/22 , H01L41/29 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To provide a laminated piezoelectric element in which conduction defects will not occur. SOLUTION: In a laminated piezoelectric element, which is formed by alternately laminating a plurality of layers, made of a material having an electromechanical energy converting function and plural layers 5 and 6 made of electrode materials upon another and making through-holes 3 and 4 as conductive electrodes for electrically connecting the layers 5 and 6 to each other through the laminated body, reinforcing layers 7 made of the electrode material are provided at the junctions between the through-holes 3 and 4 and the layers 5 and 6, by making the parts of the layers 5 and 6 surrounding the through-holes 3 and 4 larger in thickness than the other parts of the layers 5 and 6.

9. 发明专利

JPH11261121A MULTILAYER PIEZOELECTRIC ELEMENT 失效
公开(公告)号：JPH11261121A
公开(公告)日：1999-09-24
申请号：JP6321098
申请日：1998-03-13
申请人： CANON KK , TAIHEIYO CEMENT CORP
发明人： MARUYAMA YUTAKA , KOJIMA NOBUYUKI , YAMAKAWA TAKAHIRO , EZAKI TORU
IPC分类号： H01L41/083 , H01L41/22 , H01L41/257 , H02N2/00
摘要： PROBLEM TO BE SOLVED: To suppress the appearance of electric troubles at the time of polarization by making the thickness of a surface electrode layer used for-polarization of a sintered multilayer piezoelectric element constituted of material layers having an electromechanical transducing function and electrode material layers larger than that of an inner electrode layer. SOLUTION: The thickness of an electrode layer in a first layer and that of an electrode layer 6-2 in a second layer are made larger than those of the other electrode layers. Five through-holes 3-4 and 4-2-4, 3-5 and 4-2-5, 3-7 and 4-2-7, 3-8 and 4-2-8, and 3-9 and 4-2-9 are allowed to make a continuity with through-holes in a third layer through the electrode layer in the second layer and thus the electrode layer in the second layer serves as an inner electrode layer for interconnection having a conduction circuit function. By making the thickness of the electrode layer in the second layer large, an electric resistance decreases at a connection between the through hole 3-4 and an electrode layer 5-1, between the through-hole 3-4 and the electrode layer 6-2, and between the through hole 4-2-4 and the electrode layer 6-2 and thereby continuity be made more firmly and there is no chance of spark melting. Through holes 3-2, 3-3, 3-6 are allowed to conduct as far as a 22nd layer.

10. 发明专利

JP2003258329A INTERNAL ELECTRODE STRUCTURE OF PIEZOELECTRIC ACTUATOR 审中-公开
公开(公告)号：JP2003258329A
公开(公告)日：2003-09-12
申请号：JP2002061524
申请日：2002-03-07
申请人： TAIHEIYO CEMENT CORP
发明人： FUKUNAGA RYOICHI , YAMAKAWA TAKAHIRO , WATANABE MASAYUKI
IPC分类号： H01L41/083 , H01L41/187
摘要： PROBLEM TO BE SOLVED: To provide a stacked piezoelectric actuator which suppresses occurrence of cracking at the time of driving a stacked actuator, ensures reliability in a long-time driving, and prevents occurrences of delamination during polarization processing in manufacturing. SOLUTION: The piezoelectric actuator is provided with a stacked body in which the ceramic layers and internal electrodes are alternately stacked, and external electrodes which are electrically connected to the internal electrodes. Each of the plurality of internal electrode layers are formed by printing through an electrode pattern whose peripheral portion has more coarse mesh than in the inner portion, whereby the electrode density of the obtained internal electrode becomes smaller starting from the central portion to the peripheral portion on the surface of the ceramic layer. Accordingly, the stacked actuator is suppressed from having cracking at the time of driving, thus attains high reliability in long-time driving, and is prevented from having delamination during polarization processing in manufacturing. COPYRIGHT: (C)2003,JPO

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