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1. 发明申请

US20120019108A1 PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC ELEMENT 有权
标题翻译：压电陶瓷组合物和压电元件
公开(公告)号：US20120019108A1
公开(公告)日：2012-01-26
申请号：US13263374
申请日：2010-05-21
申请人： Daisuke Tanaka , Masahito Furukawa , Takeo Tsukada
发明人： Daisuke Tanaka , Masahito Furukawa , Takeo Tsukada
IPC分类号： H01L41/187 , H01L41/083 , C04B35/106
CPC分类号： H01L41/273 , C04B35/495 , C04B2235/3201 , C04B2235/3203 , C04B2235/3213 , C04B2235/3215 , C04B2235/3244 , C04B2235/3248 , C04B2235/3251 , C04B2235/3294 , C04B2235/768 , C04B2235/80 , H01L41/083 , H01L41/1873 , H01L41/43 , H03H9/176 , H03H9/178
摘要： A piezoelectric ceramic composition including a perovskite-type oxide, wherein the perovskite-type oxide has Na, K, Li, Ba and Sr at the A site and Nb, Ta and Zr at the B site, and has a crystal phase transition in a temperature range of −50 to 150° C., the crystal phase transition being accompanied by an endotherm of no greater than 4 J/g, as well as a piezoelectric element 20 provided with a piezoelectric ceramic 1 that contains the piezoelectric ceramic composition.
摘要翻译：一种包含钙钛矿型氧化物的压电陶瓷组合物，其中所述钙钛矿型氧化物在A位具有Na，K，Li，Ba和Sr，在B位上具有Nb，Ta和Zr，并且在温度范围为-50至150℃，晶体相变伴随着不大于4J / g的吸热，以及设置有包含压电陶瓷组合物的压电陶瓷1的压电元件20。

2. 发明授权

US07944126B2 Piezoelectric ceramic, vibrator and ultrasonic motor 有权
标题翻译：压电陶瓷，振动器和超声波电机
公开(公告)号：US07944126B2
公开(公告)日：2011-05-17
申请号：US12581468
申请日：2009-10-19
申请人： Daisuke Tanaka , Takeo Tsukada , Masahito Furukawa
发明人： Daisuke Tanaka , Takeo Tsukada , Masahito Furukawa
IPC分类号： H01L41/08
CPC分类号： C04B35/4682 , C04B35/62685 , C04B2235/3208 , C04B2235/3236 , C04B2235/3262 , C04B2235/3272 , C04B2235/3281 , C04B2235/5445 , H01L41/1871 , H02N2/163
摘要： Provided is a piezoelectric ceramic 1 containing a compound represented by the following general formula (1), as a main component and at least one element selected from Mn, Fe and Cu in an amount of 0.04 to 0.6% by mass based on the main component, and a vibrator 10 having the piezoelectric ceramic 1 and electrodes 2, 3. CaxBa1−xTiO3 (1) where, x satisfies 0.05≦x≦0.20.
摘要翻译：本发明提供一种压电陶瓷1，其以下述通式（1）表示的化合物为主成分，选自Mn，Fe，Cu中的至少一种元素为0.04〜0.6质量％，以及具有压电陶瓷1和电极2,3的振动器10.CaxBa1-xTiO3（1）其中，x满足0.05＆nlE; x＆nlE; 0.20。

3. 发明授权

US08853920B2 Piezoelectric ceramic composition consisting of a perovskite-type oxide and piezoelectric element 有权
标题翻译：由钙钛矿型氧化物和压电元件组成的压电陶瓷组合物
公开(公告)号：US08853920B2
公开(公告)日：2014-10-07
申请号：US13263374
申请日：2010-05-21
申请人： Daisuke Tanaka , Masahito Furukawa , Takeo Tsukada
发明人： Daisuke Tanaka , Masahito Furukawa , Takeo Tsukada
IPC分类号： H01L41/187 , H01L41/273 , C04B35/495 , H03H9/17 , H01L41/43 , H01L41/083
CPC分类号： H01L41/273 , C04B35/495 , C04B2235/3201 , C04B2235/3203 , C04B2235/3213 , C04B2235/3215 , C04B2235/3244 , C04B2235/3248 , C04B2235/3251 , C04B2235/3294 , C04B2235/768 , C04B2235/80 , H01L41/083 , H01L41/1873 , H01L41/43 , H03H9/176 , H03H9/178
摘要： A piezoelectric ceramic composition including a perovskite-type oxide, wherein the perovskite-type oxide has Na, K, Li, Ba and Sr at the A site and Nb, Ta and Zr at the B site, and has a crystal phase transition in a temperature range of −50 to 150° C., the crystal phase transition being accompanied by an endotherm of no greater than 4 J/g, as well as a piezoelectric element 20 provided with a piezoelectric ceramic 1 that contains the piezoelectric ceramic composition.
摘要翻译：一种包含钙钛矿型氧化物的压电陶瓷组合物，其中所述钙钛矿型氧化物在A位具有Na，K，Li，Ba和Sr，在B位上具有Nb，Ta和Zr，并且在温度范围为-50至150℃，晶体相变伴随着不大于4J / g的吸热，以及设置有包含压电陶瓷组合物的压电陶瓷1的压电元件20。

4. 发明授权

US07985348B2 Piezoelectric ceramic composition 有权
标题翻译：压电陶瓷组合物
公开(公告)号：US07985348B2
公开(公告)日：2011-07-26
申请号：US12076694
申请日：2008-03-21
申请人： Takeo Tsukada , Masahito Furukawa
发明人： Takeo Tsukada , Masahito Furukawa
IPC分类号： H01L41/187
CPC分类号： C04B35/6262 , C04B35/462 , C04B35/475 , C04B35/49 , C04B35/638 , C04B2235/3201 , C04B2235/3215 , C04B2235/3244 , C04B2235/3251 , C04B2235/3262 , C04B2235/3293 , C04B2235/3294 , C04B2235/3298 , C04B2235/6562 , C04B2235/72 , C04B2235/768 , C04B2235/79
摘要： A piezoelectric ceramic composition having a large piezoelectric constant (d) and as well having a large Qm value is to be provided. The piezoelectric ceramic composition aimed at has a composition corresponding to a solid solution containing a first compound possessing a rhombohedral crystal-based perovskite structure, a second compound possessing a tetragonal crystal-based perovskite structure, and a third compound. The third compound is a compound oxide containing Bi as a first component element, Mn as a second component element, and a tetravalent metallic element or a pentavalent metallic element as a third component element. The tetravalent metallic element is at least one member selected from the group consisting of Ti, Zr, Hf, and Sn. The pentavalent metallic element is at least one member selected from the group consisting of Nb, Ta, and Sb.
摘要翻译：提供具有大的压电常数（d）并且具有大的Qm值的压电陶瓷组合物。目标的压电陶瓷组合物具有对应于含有具有菱方晶系的钙钛矿结构的第一化合物，具有四方晶系钙钛矿结构的第二化合物和第三化合物的固溶体的组成。第三化合物是含有Bi作为第一成分元素的复合氧化物，Mn作为第二成分元素，四价金属元素或五价金属元素作为第三成分元素。四价金属元素是选自Ti，Zr，Hf和Sn中的至少一种。五价金属元素是选自Nb，Ta和Sb中的至少一种。

5. 发明申请

US20080237531A1 Piezoelectric ceramic composition 有权
标题翻译：压电陶瓷组合物
公开(公告)号：US20080237531A1
公开(公告)日：2008-10-02
申请号：US12076694
申请日：2008-03-21
申请人： Takeo Tsukada , Masahito Furukawa
发明人： Takeo Tsukada , Masahito Furukawa
IPC分类号： H01L41/187
CPC分类号： C04B35/6262 , C04B35/462 , C04B35/475 , C04B35/49 , C04B35/638 , C04B2235/3201 , C04B2235/3215 , C04B2235/3244 , C04B2235/3251 , C04B2235/3262 , C04B2235/3293 , C04B2235/3294 , C04B2235/3298 , C04B2235/6562 , C04B2235/72 , C04B2235/768 , C04B2235/79
摘要： A piezoelectric ceramic composition having a large piezoelectric constant (d) and as well having a large Qm value is to be provided. The piezoelectric ceramic composition aimed at has a composition corresponding to a solid solution containing a first compound possessing a rhombohedral crystal-based perovskite structure, a second compound possessing a tetragonal crystal-based perovskite structure, and a third compound. The third compound is a compound oxide containing Bi as a first component element, Mn as a second component element, and a tetravalent metallic element or a pentavalent metallic element as a third component element. The tetravalent metallic element is at least one member selected from the group consisting of Ti, Zr, Hf, and Sn. The pentavalent metallic element is at least one member selected from the group consisting of Nb, Ta, and Sb.
摘要翻译：提供具有大的压电常数（d）并且具有大的Qm值的压电陶瓷组合物。目标的压电陶瓷组合物具有对应于含有具有菱方晶系的钙钛矿结构的第一化合物，具有四方晶系钙钛矿结构的第二化合物和第三化合物的固溶体的组成。第三化合物是含有Bi作为第一成分元素的复合氧化物，Mn作为第二成分元素，四价金属元素或五价金属元素作为第三成分元素。四价金属元素是选自Ti，Zr，Hf和Sn中的至少一种。五价金属元素是选自Nb，Ta和Sb中的至少一种。

6. 发明授权

US07901590B2 Piezoelectric ceramic composition 有权
标题翻译：压电陶瓷组合物
公开(公告)号：US07901590B2
公开(公告)日：2011-03-08
申请号：US12076693
申请日：2008-03-21
申请人： Takeo Tsukada , Masahito Furukawa
发明人： Takeo Tsukada , Masahito Furukawa
IPC分类号： H01L41/187
CPC分类号： C04B35/462
摘要： A piezoelectric ceramic composition that acquires excellent piezoelectric properties even when it is fired at a low temperature is offered. The piezoelectric ceramic composition possesses a composition corresponding to a solid solution that contains a first compound having a rhombohedral crystal-based perovskite structure, a second compound having a tetragonal crystal-based perovskite structure, and a third compound. The third compound is a compound oxide containing Bi as a first component element, Fe or Mn as a second component element, and a hexavalent metallic element as a third component element. The hexavalent metallic element is at least one kind selected from W and Mo.
摘要翻译：提供即使在低温下烧制也能获得优异的压电特性的压电陶瓷组合物。压电陶瓷组合物具有对应于包含具有菱形结晶基钙钛矿结构的第一化合物，具有四方晶系钙钛矿结构的第二化合物和第三化合物的固溶体的组成。第三化合物是包含Bi作为第一组分元素的复合氧化物，作为第二组分元素的Fe或Mn，以及作为第三组分元素的六价金属元素。六价金属元素是选自W和Mo中的至少一种。

7. 发明授权

US07507347B2 Piezoelectric ceramic composition and laminated piezoelectric element 失效
标题翻译：压电陶瓷组合物和叠层压电元件
公开(公告)号：US07507347B2
公开(公告)日：2009-03-24
申请号：US11686455
申请日：2007-03-15
申请人： Kumiko Iezumi , Junichi Yamazaki , Norimasa Sakamoto , Takeo Tsukada , Masahito Furukawa , Keisuke Itakura , Hideya Sakamoto , Yumiko Kozasa , Masayoshi Inoue , Masaru Nanao , Satoshi Ozawa
发明人： Kumiko Iezumi , Junichi Yamazaki , Norimasa Sakamoto , Takeo Tsukada , Masahito Furukawa , Keisuke Itakura , Hideya Sakamoto , Yumiko Kozasa , Masayoshi Inoue , Masaru Nanao , Satoshi Ozawa
IPC分类号： C04B35/491
CPC分类号： H01L41/083 , C04B35/493 , C04B2235/3203 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3251 , C04B2235/3258 , C04B2235/3281 , C04B2235/3284 , C04B2235/3291 , C04B2235/3294 , C04B2235/604 , C04B2235/656 , C04B2235/6584 , C04B2235/77 , C04B2235/79 , H01L41/1876
摘要： Provided is a piezoelectric ceramic composition capable of being sintered at low temperatures and in a low-oxygen reductive atmosphere and capable of attaining a sufficient displacement even at high voltages of 1 kV/mm or more. The piezoelectric ceramic composition includes: a composite oxide, as a main constituent thereof, represented by the following composition formula; Cu and/or Ag, each as a first additive, Cu being included in a content α, in terms of Cu2O, falling within a range 0
摘要翻译：提供一种压电陶瓷组合物，其能够在低温和低氧还原气氛中烧结，并且即使在1kV / mm以上的高电压下也能够获得足够的位移。压电陶瓷组合物包括：作为其主要成分的复合氧化物，由以下组成式表示; Cu和/或Ag，每个作为第一添加剂，Cu以包含在Cu 2 O中的含量α中包含在0 <α≤0.5质量％的范围内，并且Ag被包含在含量β中 Ag2O，相对于主要成分为0 <β≤0.4质量％范围内; 其中：组成式：Pba [（Zn1 / 3Nb2 / 3）xTiyZrz] O3，其中0.96 <= a <= 1.03，0.005 <= x <0.05,0.42≤y≤0.53,0.45≤z≤0.56， x + y + z = 1。

8. 发明申请

US20080237530A1 Piezoelectric ceramic composition 有权
标题翻译：压电陶瓷组合物
公开(公告)号：US20080237530A1
公开(公告)日：2008-10-02
申请号：US12076693
申请日：2008-03-21
申请人： Takeo Tsukada , Masahito Furukawa
发明人： Takeo Tsukada , Masahito Furukawa
IPC分类号： H01L41/187
CPC分类号： C04B35/462
摘要： A piezoelectric ceramic composition that acquires excellent piezoelectric properties even when it is fired at a low temperature is offered. The piezoelectric ceramic composition possesses a composition corresponding to a solid solution that contains a first compound having a rhombohedral crystal-based perovskite structure, a second compound having a tetragonal crystal-based perovskite structure, and a third compound. The third compound is a compound oxide containing Bi as a first component element, Fe or Mn as a second component element, and a hexavalent metallic element as a third component element. The hexavalent metallic element is at least one kind selected from W and Mo.
摘要翻译：提供即使在低温下烧制也能获得优异的压电特性的压电陶瓷组合物。压电陶瓷组合物具有对应于包含具有菱形结晶基钙钛矿结构的第一化合物，具有四方晶系钙钛矿结构的第二化合物和第三化合物的固溶体的组成。第三化合物是包含Bi作为第一组分元素的复合氧化物，作为第二组分元素的Fe或Mn，以及作为第三组分元素的六价金属元素。六价金属元素是选自W和Mo中的至少一种。

9. 发明申请

US20060202152A1 Piezoelectric ceramic composition, production method thereof, piezoelectric element and fabrication method thereof 审中-公开
标题翻译：压电陶瓷组合物及其制造方法，压电元件及其制造方法
公开(公告)号：US20060202152A1
公开(公告)日：2006-09-14
申请号：US11369812
申请日：2006-03-08
申请人： Kumiko Iezumi , Takeo Tsukada , Masayoshi Inoue , Junichi Yamazaki , Masaru Nanao , Masahito Furukawa , Hideya Sakamoto , Norimasa Sakamoto
发明人： Kumiko Iezumi , Takeo Tsukada , Masayoshi Inoue , Junichi Yamazaki , Masaru Nanao , Masahito Furukawa , Hideya Sakamoto , Norimasa Sakamoto
IPC分类号： C04B35/00 , C04B35/49 , H01L41/18 , B28B3/00 , C04B35/64
CPC分类号： C04B35/493 , C04B35/6262 , C04B35/62685 , C04B35/638 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3241 , C04B2235/3251 , C04B2235/3255 , C04B2235/3258 , C04B2235/3262 , C04B2235/3272 , C04B2235/3275 , C04B2235/3279 , C04B2235/3281 , C04B2235/3284 , C04B2235/3294 , C04B2235/407 , C04B2235/652 , C04B2235/6582 , C04B2235/6584 , C04B2235/6588 , C04B2235/79 , C04B2235/85 , H01L41/083 , H01L41/1876 , H01L41/273 , H01L41/43
摘要： A piezoelectric ceramic composition has as a chief ingredient a composite oxide that has Pb, Ti and Zr as constituent elements. It contains as a first accessory ingredient at least one element selected from the group consisting of Mn, Co, Cr, Fe and Ni in an amount of 0.2 mass % or less excluding 0 mass % in terms of an oxide. As the first accessory ingredient, at least one species selected from the ingredients represented by CuOx, wherein x≧0, can be adopted. In this case, the content of the first accessory ingredient is 3.0 mass % or less excluding 0 mass %. The piezoelectric ceramic composition is fired under reducing and firing conditions. The reducing and firing conditions include a firing temperature in the range of 800° C. to 1200° C. and an oxygen partial pressure in the range of 1×10−10 to 1×10−6 atm., for example.
摘要翻译：压电陶瓷组合物作为主要成分是具有Pb，Ti和Zr作为构成元素的复合氧化物。含有0.2质量％以下的Mn，Co，Cr，Fe和Ni中的至少一种元素作为第一辅助成分，以氧化物换算为0质量％。作为第一辅助成分，可以采用选自由CuO x x表示的成分中的至少一种，其中x> = 0。在这种情况下，除了0质量％以外，第一辅助成分的含量为3.0质量％以下。压电陶瓷组合物在还原和烧制条件下烧制。还原和焙烧条件包括在800℃至1200℃范围内的烧制温度和1×10 -10至1×10 -6范围内的氧分压， SUP> atm。

10. 发明申请

US20060043329A1 Piezoelectric ceramic composition 审中-公开
标题翻译：压电陶瓷组合物
公开(公告)号：US20060043329A1
公开(公告)日：2006-03-02
申请号：US11210468
申请日：2005-08-24
申请人： Masakazu Hirose , Tomohisa Azuma , Masahito Furukawa , Takeo Tsukada , Norimasa Sakamoto
发明人： Masakazu Hirose , Tomohisa Azuma , Masahito Furukawa , Takeo Tsukada , Norimasa Sakamoto
IPC分类号： C04B35/49
CPC分类号： C04B35/493 , C04B35/62665 , C04B2235/3206 , C04B2235/3217 , C04B2235/3241 , C04B2235/3251 , C04B2235/3418 , H01L41/187
摘要： A piezoelectric ceramic composition which has a large electromechanical coupling factor and is excellent in heat resisting properties is provided. As additives, Cr, Al and Si are contained together in the piezoelectric ceramic composition including a perovskite compound which contains Pb, Zr and Ti as main components. Preferably, Cr, Al and Si are respectively contained in a content of 0.05 to 0.50 wt % in terms of Cr2O3, in a content of 0.005 to 1.500 wt % in terms of Al2O3, and in a content of 0.005 to 0.100 wt % in terms of SiO2. By simultaneously including these three elements and setting the contents thereof to fall within the above mentioned ranges, the electromechanical coupling factor kt can be 30% or more, and ΔFr, which is the rate of change in resonant frequency Fr between before and after application of an external thermal shock, can be 0.5% or less in absolute value.
摘要翻译：提供了具有大的机电耦合系数并且耐热性优异的压电陶瓷组合物。作为添加剂，包含Pb，Zr和Ti作为主要成分的钙钛矿型化合物的压电陶瓷组合物中含有Cr，Al，Si。优选地，Cr，Al和Si分别以Cr 2 Al 3 O 3含量为0.05〜0.50重量％，含量为0.005〜1.500重量％以Al 2 O 3 3计，含量为0.005〜0.100重量％，以SiO 2 2计。通过同时包含这三个要素并将其内容设定在上述范围内，机电耦合系数kt可以为30％以上，作为施加前后的谐振频率Fr的变化率的DeltaFr 外部热冲击的绝对值可以为0.5％以下。

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