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1. 发明申请

US20090302961A1 RESONANT ACTUATOR 有权
标题翻译：共振执行器
公开(公告)号：US20090302961A1
公开(公告)日：2009-12-10
申请号：US12505631
申请日：2009-07-20
申请人： Hirozumi Ogawa , Shinichiro Kawada
发明人： Hirozumi Ogawa , Shinichiro Kawada
IPC分类号： H03B5/32 , H01L41/047
CPC分类号： H03H9/176 , H01L41/0475 , H01L41/0986 , H01L41/1878
摘要： A piezoelectric ceramic base member is formed of a bismuth layer compound to have a bar shape. Main electrodes and are provided on two end surfaces of the piezoelectric ceramic base member in an oscillation direction, and connection electrodes are formed at side-surface central portions of the piezoelectric ceramic base member and are electrically connected to the main electrodes through extraction conductors interposed therebetween, respectively. In addition, the oscillation and polarization directions are set in the same direction, and the piezoelectric ceramic base member is driven at a resonant frequency or at a frequency in the vicinity thereof. In the piezoelectric ceramic base member, the crystal c axis is preferably oriented in a direction orthogonal to the polarization direction. Accordingly, a resonant actuator can be realized which is able to obtain a high oscillation speed since having a large mechanical quality factor Qm, and the oscillation of which is not disturbed by mechanical factors.
摘要翻译：压电陶瓷基体由铋层化合物形成为棒状。主电极设置在振动方向的压电陶瓷基体的两个端面上，连接电极形成在压电陶瓷基体的侧面中心部分，并通过导电导体与主电极电连接，分别。此外，振荡和偏振方向被设置在相同的方向上，并且以谐振频率或其附近的频率驱动压电陶瓷基体。在压电陶瓷基体中，晶体c轴优选在与偏振方向正交的方向上取向。因此，可以实现能够获得高振荡速度的谐振致动器，因为具有大的机械品质因数Qm，并且其振动不受机械因素的干扰。

2. 发明授权

US06734606B2 Piezoelectric ceramic composition and piezoelectric ceramic element using the same 有权
标题翻译：压电陶瓷组合物和使用其的压电陶瓷元件
公开(公告)号：US06734606B2
公开(公告)日：2004-05-11
申请号：US10300584
申请日：2002-11-21
申请人： Masahiko Kimura , Hirozumi Ogawa , Takuya Sawada , Akira Ando
发明人： Masahiko Kimura , Hirozumi Ogawa , Takuya Sawada , Akira Ando
IPC分类号： H01L41187
CPC分类号： C04B35/495 , C04B2235/3213 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3251 , C04B2235/3262 , C04B2235/3298 , C04B2235/604 , H01L41/187
摘要： A piezoelectric ceramic composition includes a bismuth layered compound containing Sr, Bi, Nb and a metal element other than Bi having a valence of 3. The bismuth layered compound satisfies the relational expressions: 0.275
摘要翻译：压电陶瓷组合物包括含有Sr，Bi，Nb的铋层状化合物和具有化合价3的Bi以外的金属元素。铋层状化合物满足关系式：0.275

3. 发明授权

US06445110B1 Piezoelectric device 失效
公开(公告)号：US06445110B1
公开(公告)日：2002-09-03
申请号：US09578131
申请日：2000-05-24
申请人： Masahiko Kimura , Akira Ando , Takuya Sawada , Hirozumi Ogawa
发明人： Masahiko Kimura , Akira Ando , Takuya Sawada , Hirozumi Ogawa
IPC分类号： H01L4104
CPC分类号： H03H9/177 , C04B35/475 , C04B35/6262 , C04B2235/3208 , C04B2235/604 , C04B2235/787 , H01L41/1878 , H03H9/02031 , H03H9/02157
摘要： A piezoelectric device having an electromechanical coefficient, which can be applied to practical uses, is obtained by an energy-trapping effect using a piezoelectric ceramic having a layered perovskite structure provided with high-temperature resistance and little high-frequency loss. The piezoelectric device has a substrate formed of a piezoelectric ceramic having a layered perovskite structure. The c-axis in the substrate is preferentially oriented in the width direction thereof, and the substrate is polarized in the longitudinal direction. Two electrodes are formed on both main surfaces of the substrate so as to oppose each other in the vicinity of the central part thereof. As a material used for the substrate, a piezoelectric ceramic composition primarily composed of a ceramic composition represented by the general formula CaBi4Ti4O15 is preferably used.

4. 发明授权

US08035283B2 Resonant actuator 有权
标题翻译：谐振执行器
公开(公告)号：US08035283B2
公开(公告)日：2011-10-11
申请号：US12505631
申请日：2009-07-20
申请人： Hirozumi Ogawa , Shinichiro Kawada
发明人： Hirozumi Ogawa , Shinichiro Kawada
IPC分类号： H03H9/125
CPC分类号： H03H9/176 , H01L41/0475 , H01L41/0986 , H01L41/1878
摘要： A piezoelectric ceramic base member is formed of a bar shaped bismuth layer compound, and has main electrodes on two end surfaces in an oscillation direction, with connection electrodes at side-surface central portions of the piezoelectric ceramic base member electrically connected to the main electrodes through extraction conductors interposed therebetween, respectively. The oscillation and polarization directions are set in the same direction, and the piezoelectric ceramic base member is driven at a resonant frequency or at a frequency in the vicinity thereof. The crystal c axis is preferably oriented in a direction orthogonal to the polarization direction. The resonant actuator is able to obtain a high oscillation speed as it has a large mechanical quality factor Qm, and the oscillation is not disturbed by mechanical factors.
摘要翻译：压电陶瓷基体由条状铋层化合物形成，并且在振荡方向的两个端面上具有主电极，压电陶瓷基体的侧面中心部分的连接电极通过提取导体分别插入其间。将振荡和偏振方向设定在相同的方向，并且以谐振频率或其附近的频率驱动压电陶瓷基体。晶体c轴优选地在与偏振方向正交的方向上取向。谐振致动器能够获得高振荡速度，因为其具有大的机械品质因数Qm，并且振荡不受机械因素的干扰。

5. 发明授权

US07510669B2 Piezoelectric ceramic composition and piezoelectric component 有权
标题翻译：压电陶瓷组合物和压电元件
公开(公告)号：US07510669B2
公开(公告)日：2009-03-31
申请号：US12054060
申请日：2008-03-24
申请人： Hirozumi Ogawa , Masahiko Kimura , Kosuke Shiratsuyu
发明人： Hirozumi Ogawa , Masahiko Kimura , Kosuke Shiratsuyu
IPC分类号： C04B35/495 , H01B3/12 , H01L41/187
CPC分类号： H01L41/187 , C04B35/495 , C04B35/63416 , C04B2235/3213 , C04B2235/3251 , C04B2235/3262 , C04B2235/3281 , C04B2235/3298
摘要： A piezoelectric ceramic composition includes a bismuth layer compound containing at least Sr, Bi and Nb, e.g., (Sr0.9Nd0.1)Bi2Nb2O9, as a main component and 2 parts by weight or less (excluding 0 part by weight), preferably 0.04 part by weight to 0.5 part by weight, of Cu in terms of CuO relative to 100 parts by weight of the main component. From the viewpoint of improvement in sinterability, 0.1 part by weight to 2 parts by weight of Mn in terms of MnCO3 relative to 100 parts by weight of the main component is preferably contained. As a result, it is possible to obtain a piezoelectric ceramic composition resisting no deterioration in piezoelectricity even when a rapid temperature change occurs, and an advantageous piezoelectric component, such as a piezoelectric actuator or a piezoelectric resonator, manufactured using the piezoelectric ceramic composition.
摘要翻译：压电陶瓷组合物包括至少含有Sr，Bi和Nb的铋层化合物，例如（Sr0.9Nd0.1）Bi2Nb2O9作为主要成分，2重量份以下（不包括0重量份），优选为0.04 重量百分比至0.5重量份，相对于主要组分100重量份，Cu为CuO。从提高烧结性的观点出发，优选含有相对于100重量份的主成分为0.1重量份〜2重量份的以MnCO 3换算的Mn。结果，即使发生快速的温度变化，也可以得到压电陶瓷组合物，即使压电陶瓷组合物制造的压电元件如压电致动器或压电谐振器也是不会劣化的。

6. 发明授权

US07750541B2 Piezoelectric ceramic and method for making the same, and piezoelectric resonator and method for making the same 有权
标题翻译：压电陶瓷及其制造方法，以及压电谐振器及其制造方法
公开(公告)号：US07750541B2
公开(公告)日：2010-07-06
申请号：US12147173
申请日：2008-06-26
申请人： Hirozumi Ogawa , Takuya Sawada , Masahiko Kimura , Kosuke Shiratsuyu , Akira Ando
发明人： Hirozumi Ogawa , Takuya Sawada , Masahiko Kimura , Kosuke Shiratsuyu , Akira Ando
IPC分类号： H01L41/187
CPC分类号： H01L41/43 , H01L41/1878 , H03H9/02031 , H03H9/02102 , H03H9/176 , H03H9/178 , Y10T29/42
摘要： A piezoelectric ceramic whose resonance frequency temperature characteristic can be easily adjusted is provided. It contains first and second parts (11 and 12) which can be alternately stacked layers. The first and second parts (11 and 12) are each composed of a compound having a bismuth layer structure, such as a complex oxide containing at least Sr, Bi, and Nb, and have degrees of c-axis orientation different from each other. Since the resonance frequency temperature characteristics change according to the degree of orientation, the first and second parts (11 and 12) having different degrees of orientation are appropriately combined so that the resonance frequency temperature characteristics of the piezoelectric ceramic (2) as a whole is easily adjusted.
摘要翻译：提供了可以容易地调节共振频率温度特性的压电陶瓷。它包含可以交替层叠的第一和第二部分（11和12）。第一和第二部分（11和12）各自由具有铋层结构的化合物组成，例如至少含有Sr，Bi和Nb的复合氧化物，并且具有彼此不同的c轴取向度。由于谐振频率温度特性根据取向度而变化，所以具有不同取向度的第一和第二部分（11和12）被适当组合，使得压电陶瓷（2）整体的谐振频率温度特性为容易调整

7. 发明授权

US06767503B2 Method of producing ceramic 失效
标题翻译：陶瓷生产方法
公开(公告)号：US06767503B2
公开(公告)日：2004-07-27
申请号：US10141363
申请日：2002-05-07
申请人： Hirozumi Ogawa , Masahiko Kimura , Akira Ando
发明人： Hirozumi Ogawa , Masahiko Kimura , Akira Ando
IPC分类号： B28B3800
CPC分类号： C04B35/645 , B28B1/002 , B28B11/00 , B32B18/00 , B32B37/0046 , B32B2309/022 , C04B35/475 , C04B35/495 , C04B35/497 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3231 , C04B2235/3232 , C04B2235/3251 , C04B2235/3258 , C04B2235/3262 , C04B2235/3296 , C04B2235/3298 , C04B2235/5292 , C04B2235/5296 , C04B2235/6025 , C04B2235/77 , C04B2235/787 , C04B2237/704
摘要： A ceramic powder of grains having a shape-anisotropy is mixed with a calcined or uncalcined (or both) powder of a ceramic raw material. A ceramic slurry containing the produced mixed powder, a solvent and a binder is prepared and the ceramic slurry is formed into a sheet. A laminate comprised of a plurality of the sheets laminated to each other is uniaxially pressed to form an oriented product in such a manner that the length of the laminate in the direction parallel to the pressing axis becomes larger than that before the pressing, and the area of a plane perpendicular to the pressing axis of the laminate becomes larger than that before the pressing. The oriented formed product is fired and sintered.
摘要翻译：将具有形状各向异性的颗粒的陶瓷粉末与陶瓷原料的煅烧或未煅烧（或两者）粉末混合。制备含有所制备的混合粉末，溶剂和粘合剂的陶瓷浆料，并将陶瓷浆料形成为片材。将由多个彼此层压的片材组成的层叠体单轴压制，以使层叠体在与按压轴平行的方向上的长度变得比压制前的长度大的方式形成取向品，垂直于层叠体的按压轴的平面的尺寸大于按压之前的平面。定向成型的产品被烧制和烧结。

8. 发明授权

US06753642B2 Piezoelectric ceramic and piezoelectric ceramic element including the same 有权
标题翻译：压电陶瓷和压电陶瓷元件包括它们
公开(公告)号：US06753642B2
公开(公告)日：2004-06-22
申请号：US10130675
申请日：2002-05-22
申请人： Hirozumi Ogawa , Masahiko Kimura , Akira Ando
发明人： Hirozumi Ogawa , Masahiko Kimura , Akira Ando
IPC分类号： H01L41187
CPC分类号： B32B18/00 , C04B35/465 , C04B35/475 , C04B2235/3206 , C04B2235/3208 , C04B2235/3213 , C04B2235/3215 , C04B2235/3224 , C04B2235/3225 , C04B2235/3227 , C04B2235/3229 , C04B2235/3244 , C04B2235/3262 , C04B2235/3296 , C04B2235/6025 , C04B2237/704 , H01L41/187
摘要： In a piezoelectric ceramic containing a bismuth layer compound containing Ca, Bi, Ti, and O, as a main component, the molar ratio of Ca to Bi to Ti in the bismuth layer compound, which is the main component, is represented by a:b:c and formulas 0.15≦a/c
摘要翻译：在以含有Ca，Bi，Ti和O的铋层化合物为主要成分的压电陶瓷中，作为主要成分的铋层化合物中的Ca与Bi与Ti的摩尔比由下式表示： b：c和式0.15 <= a / c <0.25和3.5 <=（2a + 3b）/ c <= 3.88。

9. 发明申请

US20080284286A1 PIEZOELECTRIC CERAMIC AND METHOD FOR MAKING THE SAME, AND PIEZOELECTRIC RESONATOR AND METHOD FOR MAKING THE SAME 有权
标题翻译：压电陶瓷及其制造方法，压电谐振器及其制造方法
公开(公告)号：US20080284286A1
公开(公告)日：2008-11-20
申请号：US12147173
申请日：2008-06-26
申请人： Hirozumi Ogawa , Takuya Sawada , Masahiko Kimura , Kosuke Shiratsuyu , Akira Ando
发明人： Hirozumi Ogawa , Takuya Sawada , Masahiko Kimura , Kosuke Shiratsuyu , Akira Ando
IPC分类号： H01L41/083 , H01L41/24 , H01L41/187
CPC分类号： H01L41/43 , H01L41/1878 , H03H9/02031 , H03H9/02102 , H03H9/176 , H03H9/178 , Y10T29/42
摘要： A piezoelectric ceramic whose resonance frequency temperature characteristic can be easily adjusted is provided. It contains first and second parts (11 and 12) which can be alternately stacked layers. The first and second parts (11 and 12) are each composed of a compound having a bismuth layer structure, such as a complex oxide containing at least Sr, Bi, and Nb, and have degrees of c-axis orientation different from each other. Since the resonance frequency temperature characteristics change according to the degree of orientation, the first and second parts (11 and 12) having different degrees of orientation are appropriately combined so that the resonance frequency temperature characteristics of the piezoelectric ceramic (2) as a whole is easily adjusted.
摘要翻译：提供了可以容易地调节共振频率温度特性的压电陶瓷。它包含可以交替层叠的第一和第二部分（11和12）。第一和第二部分（11和12）各自由具有铋层结构的化合物组成，例如至少含有Sr，Bi和Nb的复合氧化物，并且具有彼此不同的c轴取向度。由于谐振频率温度特性根据取向度而变化，所以具有不同取向度的第一和第二部分（11和12）被适当组合，使得压电陶瓷（2）整体的谐振频率温度特性为容易调整

10. 发明申请

US20080169445A1 PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC COMPONENT 有权
标题翻译：压电陶瓷组合物和压电元件
公开(公告)号：US20080169445A1
公开(公告)日：2008-07-17
申请号：US12054060
申请日：2008-03-24
申请人： Hirozumi Ogawa , Masahiko Kimura , Kosuke Shiratsuyu
发明人： Hirozumi Ogawa , Masahiko Kimura , Kosuke Shiratsuyu
IPC分类号： C04B35/00 , H01L41/18
CPC分类号： H01L41/187 , C04B35/495 , C04B35/63416 , C04B2235/3213 , C04B2235/3251 , C04B2235/3262 , C04B2235/3281 , C04B2235/3298
摘要： A piezoelectric ceramic composition includes a bismuth layer compound containing at least Sr, Bi and Nb, e.g., (Sr0.9Nd0.1)Bi2Nb2O9, as a main component and 2 parts by weight or less (excluding 0 part by weight), preferably 0.04 part by weight to 0.5 part by weight, of Cu in terms of CuO relative to 100 parts by weight of the main component. From the viewpoint of improvement in sinterability, 0.1 part by weight to 2 parts by weight of Mn in terms of MnCO3 relative to 100 parts by weight of the main component is preferably contained. As a result, it is possible to obtain a piezoelectric ceramic composition resisting no deterioration in piezoelectricity even when a rapid temperature change occurs, and an advantageous piezoelectric component, such as a piezoelectric actuator or a piezoelectric resonator, manufactured using the piezoelectric ceramic composition.
摘要翻译：一种压电陶瓷组合物包括至少含有Sr，Bi和Nb的铋层化合物，例如（Sr 0.9 O 13 N 12）Nb 2 Nb 作为主要成分的2重量份或更少（不包括0重量份），优选0.04重量份至0.5重量份的Cu 相对于主成分100重量份的CuO计算。从提高烧结性的观点出发，优选含有相对于100重量份主成分为0.1重量份〜2重量份的以MnCO 3 3为基准的Mn。结果，即使发生快速的温度变化，也可以得到压电陶瓷组合物，即使压电陶瓷组合物制造的压电元件如压电致动器或压电谐振器也是不会劣化的。

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