公开(公告)号：US08846556B2

公开(公告)日：2014-09-30

申请号：US12952644

申请日：2010-11-23

申请人： Makoto Kubota ,  Tatsuo Furuta ,  Hiroshi Saito ,  Toshihiro Ifuku ,  Kenichi Takeda ,  Tetsuro Fukui

发明人： Makoto Kubota ,  Tatsuo Furuta ,  Hiroshi Saito ,  Toshihiro Ifuku ,  Kenichi Takeda ,  Tetsuro Fukui

IPC分类号： B41J2/045 ,  C04B35/00 ,  H01L41/00 ,  H02N2/00 ,  H01L41/18 ,  H01L41/187 ,  C04B35/468 ,  C04B35/628 ,  H01L41/09 ,  C04B35/626 ,  H02N2/10 ,  H02N2/16

CPC分类号： H01L41/1871 ,  C04B35/468 ,  C04B35/4682 ,  C04B35/62655 ,  C04B35/62805 ,  C04B35/62886 ,  C04B2235/3208 ,  C04B2235/3236 ,  C04B2235/3262 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/762 ,  C04B2235/765 ,  C04B2235/77 ,  C04B2235/783 ,  C04B2235/786 ,  C04B2235/96 ,  H01L41/09 ,  H01L41/0973 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163

摘要： A piezoelectric ceramic that includes barium titanate and 0.04 mass % or more and 0.20 mass % or less manganese relative to barium titanate. The piezoelectric ceramic is composed of crystal grains. The crystal grains include crystal grains A having an equivalent circular diameter of 30 μm or more and 300 μm or less and crystal grains B having an equivalent circular diameter of 0.5 μm or more and 3 μm or less. The crystal grains A and the crystal grains B individually form aggregates and the aggregates of the crystal grains A and the aggregates of the crystal grains B form a sea-island structure.

摘要翻译： 一种压电陶瓷，其包含钛酸钡，相对于钛酸钡为0.04质量％以上且0.20质量％以下的锰。 压电陶瓷由晶粒组成。 晶粒包括等效圆直径为30μm以上且300μm以下的晶粒A和等效圆直径为0.5μm以上且3μm以下的晶粒B. 晶粒A和晶粒B分别形成聚集体，并且晶粒A的聚集体和晶粒B的聚集体形成海岛结构。

公开(公告)号：US20110128327A1

公开(公告)日：2011-06-02

申请号：US12952644

申请日：2010-11-23

申请人： Makoto Kubota ,  Tatsuo Furuta ,  Hiroshi Saito ,  Toshihiro Ifuku ,  Kenichi Takeda ,  Tetsuro Fukui

发明人： Makoto Kubota ,  Tatsuo Furuta ,  Hiroshi Saito ,  Toshihiro Ifuku ,  Kenichi Takeda ,  Tetsuro Fukui

IPC分类号： B41J2/045 ,  H01L41/18 ,  H02N2/00

CPC分类号： H01L41/1871 ,  C04B35/468 ,  C04B35/4682 ,  C04B35/62655 ,  C04B35/62805 ,  C04B35/62886 ,  C04B2235/3208 ,  C04B2235/3236 ,  C04B2235/3262 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/656 ,  C04B2235/6567 ,  C04B2235/762 ,  C04B2235/765 ,  C04B2235/77 ,  C04B2235/783 ,  C04B2235/786 ,  C04B2235/96 ,  H01L41/09 ,  H01L41/0973 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163

摘要： A piezoelectric ceramic that includes barium titanate and 0.04 mass % or more and 0.20 mass % or less manganese relative to barium titanate. The piezoelectric ceramic is composed of crystal grains. The crystal grains include crystal grains A having an equivalent circular diameter of 30 μm or more and 300 μm or less and crystal grains B having an equivalent circular diameter of 0.5 μm or more and 3 μm or less. The crystal grains A and the crystal grains B individually form aggregates and the aggregates of the crystal grains A and the aggregates of the crystal grains B form a sea-island structure.

摘要翻译： 一种压电陶瓷，其包含钛酸钡，相对于钛酸钡为0.04质量％以上且0.20质量％以下的锰。 压电陶瓷由晶粒组成。 晶粒包括等效圆直径为30μm以上且300μm以下的晶粒A和等效圆直径为0.5μm以上且3μm以下的晶粒B. 晶粒A和晶粒B分别形成聚集体，并且晶粒A的聚集体和晶粒B的聚集体形成海岛结构。

公开(公告)号：US08884493B2

公开(公告)日：2014-11-11

申请号：US13176649

申请日：2011-07-05

申请人： Tatsuo Furuta ,  Kenichi Takeda ,  Toshihiro Ifuku ,  Makoto Kubota ,  Hiroshi Saito

发明人： Tatsuo Furuta ,  Kenichi Takeda ,  Toshihiro Ifuku ,  Makoto Kubota ,  Hiroshi Saito

IPC分类号： H01L41/09 ,  H01L41/187 ,  H02N2/00 ,  G02B27/00 ,  B08B7/02 ,  B06B1/02 ,  H01L41/43

CPC分类号： H02N2/008 ,  B06B1/0284 ,  B08B7/02 ,  G02B27/0006 ,  G03B2205/0061 ,  H01L41/187 ,  H01L41/43 ,  H02N2/0015

摘要： Provided is a vibration generating device in which more improvement of drive efficiency can be realized than conventional ones. The vibration generating device includes: a piezoelectric element including a piezoelectric material interposed between electrodes; a vibration member; a power source for applying an alternating voltage to the piezoelectric element; and a control section for controlling a frequency of the alternating voltage applied by the power source, in which the control section controls the frequency of the alternating voltage applied to the piezoelectric element so that the resonance frequency of the piezoelectric element is successively changed from low frequency side to high frequency side in a frequency range including a change range of a resonance frequency of the piezoelectric element.

摘要翻译： 提供了一种振动产生装置，其中可以实现比常规驱动效率更高的驱动效率的提高。 振动产生装置包括：压电元件，其包括介于电极之间的压电材料; 振动件; 用于向压电元件施加交流电压的电源; 以及控制部分，用于控制由电源施加的交流电压的频率，其中控制部分控制施加到压电元件的交流电压的频率，使得压电元件的谐振频率从低频 在包括压电元件的谐振频率的变化范围的频率范围内的高频侧。

公开(公告)号：US20120032557A1

公开(公告)日：2012-02-09

申请号：US13176649

申请日：2011-07-05

申请人： Tatsuo Furuta ,  Kenichi Takeda ,  Toshihiro Ifuku ,  Makoto Kubota ,  Hiroshi Saito

发明人： Tatsuo Furuta ,  Kenichi Takeda ,  Toshihiro Ifuku ,  Makoto Kubota ,  Hiroshi Saito

IPC分类号： H01L41/09

CPC分类号： H02N2/008 ,  B06B1/0284 ,  B08B7/02 ,  G02B27/0006 ,  G03B2205/0061 ,  H01L41/187 ,  H01L41/43 ,  H02N2/0015

摘要： Provided is a vibration generating device in which more improvement of drive efficiency can be realized than conventional ones. The vibration generating device includes: a piezoelectric element including a piezoelectric material interposed between electrodes; a vibration member; a power source for applying an alternating voltage to the piezoelectric element; and a control section for controlling a frequency of the alternating voltage applied by the power source, in which the control section controls the frequency of the alternating voltage applied to the piezoelectric element so that the resonance frequency of the piezoelectric element is successively changed from low frequency side to high frequency side in a frequency range including a change range of a resonance frequency of the piezoelectric element.

摘要翻译： 提供了一种振动产生装置，其中可以实现比常规驱动效率更高的驱动效率的提高。 振动产生装置包括：压电元件，其包括介于电极之间的压电材料; 振动件; 用于向压电元件施加交流电压的电源; 以及控制部分，用于控制由电源施加的交流电压的频率，其中控制部分控制施加到压电元件的交流电压的频率，使得压电元件的谐振频率从低频 在包括压电元件的谐振频率的变化范围的频率范围内的高频侧。

公开(公告)号：US20110120494A1

公开(公告)日：2011-05-26

申请号：US12945523

申请日：2010-11-12

申请人： Toshihiro Ifuku ,  Tatsuo Furuta ,  Hiroshi Saito ,  Kenichi Takeda

发明人： Toshihiro Ifuku ,  Tatsuo Furuta ,  Hiroshi Saito ,  Kenichi Takeda

IPC分类号： F28G7/00

CPC分类号： G02B27/0006 ,  B06B1/0648 ,  B08B7/02 ,  G03B11/00 ,  G03B17/02 ,  G03B17/14 ,  H04N5/2171 ,  H04N5/2254

摘要： In a piezoelectric device, a first electrode and a second electrode are disposed to be opposed to each other on plate surfaces of the piezoelectric device, a first electrode plane of the piezoelectric device is fixedly bonded to a plate surface of a vibrating plate, a piezoelectric material forming the piezoelectric device is polarized in a direction parallel to the first electrode plane, the piezoelectric device is fixed to a base through a second electrode plane of the piezoelectric device, and the piezoelectric device generates a thickness-shear vibration with the fixed second electrode plane being a reference plane. The piezoelectric vibration generated by the piezoelectric device generates a flexural vibration in the vibrating plate, to thereby remove dust adhering to a surface of the vibrating plate.

摘要翻译： 在压电元件中，第一电极和第二电极在压电元件的板面彼此相对配置，压电元件的第一电极面与振动板的板面固定接合，压电 形成压电元件的材料在平行于第一电极平面的方向上极化，压电器件通过压电器件的第二电极平面固定到基底，并且压电器件产生与固定的第二电极的厚度 - 剪切振动 飞机是参考平面。 由压电装置产生的压电振动在振动板中产生弯曲振动，从而除去附着在振动板表面的灰尘。

公开(公告)号：US08966704B2

公开(公告)日：2015-03-03

申请号：US12945523

申请日：2010-11-12

申请人： Toshihiro Ifuku ,  Tatsuo Furuta ,  Hiroshi Saito ,  Kenichi Takeda

发明人： Toshihiro Ifuku ,  Tatsuo Furuta ,  Hiroshi Saito ,  Kenichi Takeda

IPC分类号： H01L41/09 ,  B06B1/06 ,  B08B7/02 ,  H04N5/225 ,  G03B17/00 ,  G03B11/00 ,  H04N5/217 ,  G02B27/00 ,  G03B17/02 ,  G03B17/14

CPC分类号： G02B27/0006 ,  B06B1/0648 ,  B08B7/02 ,  G03B11/00 ,  G03B17/02 ,  G03B17/14 ,  H04N5/2171 ,  H04N5/2254

摘要： In a piezoelectric device, a first electrode and a second electrode are disposed to be opposed to each other on plate surfaces of the piezoelectric device, a first electrode plane of the piezoelectric device is fixedly bonded to a plate surface of a vibrating plate, a piezoelectric material forming the piezoelectric device is polarized in a direction parallel to the first electrode plane, the piezoelectric device is fixed to a base through a second electrode plane of the piezoelectric device, and the piezoelectric device generates a thickness-shear vibration with the fixed second electrode plane being a reference plane. The piezoelectric vibration generated by the piezoelectric device generates a flexural vibration in the vibrating plate, to thereby remove dust adhering to a surface of the vibrating plate.

公开(公告)号：US09614140B2

公开(公告)日：2017-04-04

申请号：US13989756

申请日：2011-11-18

申请人： Takanori Matsuda ,  Hiroshi Saito ,  Tatsuo Furuta ,  Jumpei Hayashi ,  Takayuki Watanabe ,  Toshihiro Ifuku

发明人： Takanori Matsuda ,  Hiroshi Saito ,  Tatsuo Furuta ,  Jumpei Hayashi ,  Takayuki Watanabe ,  Toshihiro Ifuku

IPC分类号： H01L41/08 ,  H01L41/187 ,  B41J2/16 ,  C04B35/626 ,  B08B7/02 ,  H01L41/43 ,  H01L41/09 ,  H02N2/10 ,  H02N2/16

CPC分类号： C04B35/4682 ,  B08B7/02 ,  B08B7/028 ,  B41J2/14209 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1646 ,  C04B35/62655 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3227 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3249 ,  C04B2235/3262 ,  C04B2235/3268 ,  C04B2235/3298 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/549 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/782 ,  C04B2235/786 ,  C04B2235/96 ,  H01L41/09 ,  H01L41/0973 ,  H01L41/1871 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163 ,  H03H9/176

摘要： A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact. The sintering includes (A) increasing the temperature of the compact to a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a temperature range of a liquid phase sintering process of the compact; (C) decreasing the temperature of the compact to the temperature range of the shrinking process of the compact; and (D) retaining the third temperature.

公开(公告)号：US20140009038A1

公开(公告)日：2014-01-09

申请号：US13989756

申请日：2011-11-18

申请人： Takanori Matsuda ,  Hiroshi Saito ,  Tatsuo Furuta ,  Jumpei Hayashi ,  Takayuki Watanabe ,  Toshihiro Ifuku

发明人： Takanori Matsuda ,  Hiroshi Saito ,  Tatsuo Furuta ,  Jumpei Hayashi ,  Takayuki Watanabe ,  Toshihiro Ifuku

IPC分类号： H01L41/187

CPC分类号： C04B35/4682 ,  B08B7/02 ,  B08B7/028 ,  B41J2/14209 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1646 ,  C04B35/62655 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3227 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3249 ,  C04B2235/3262 ,  C04B2235/3268 ,  C04B2235/3298 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/549 ,  C04B2235/6562 ,  C04B2235/6565 ,  C04B2235/6567 ,  C04B2235/661 ,  C04B2235/77 ,  C04B2235/782 ,  C04B2235/786 ,  C04B2235/96 ,  H01L41/09 ,  H01L41/0973 ,  H01L41/1871 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163 ,  H03H9/176

摘要： A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact composed of an oxide powder containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact after the sintering. The sintering includes (A) increasing the temperature of the compact to a first temperature within a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a second temperature within a temperature range of a liquid phase sintering process of the compact after (A); (C) decreasing the temperature of the compact to a third temperature within the temperature range of the shrinking process of the compact after (B); and (D) retaining the third temperature after (C).

摘要翻译： 提供具有良好压电性能和机械强度的钛酸钡压电陶瓷和包括陶瓷的压电元件。 制造压电陶瓷的方法包括：形成由包含钛酸钡颗粒的氧化物粉末组成的压块，烧结该压块，以及降低烧结后的压块的温度。 烧结包括（A）将压坯的温度在压坯的收缩过程的温度范围内提高到第一温度; （B）在（A）之后的压块的液相烧结工艺的温度范围内将压坯的温度提高到第二温度; （C）在（B）之后的压坯的收缩过程的温度范围内将压坯的温度降低到第三温度; 和（D）在（C）之后保持第三温度。

公开(公告)号：US09515249B2

公开(公告)日：2016-12-06

申请号：US14130670

申请日：2012-06-26

申请人： Jumpei Hayashi ,  Tatsuo Furuta ,  Yasushi Shimizu ,  Takanori Matsuda ,  Hiroshi Saito ,  Makoto Kubota

发明人： Jumpei Hayashi ,  Tatsuo Furuta ,  Yasushi Shimizu ,  Takanori Matsuda ,  Hiroshi Saito ,  Makoto Kubota

IPC分类号： H01L41/187 ,  C04B35/468 ,  C04B35/49

CPC分类号： H01L41/1871 ,  C04B35/4682 ,  C04B35/49 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3225 ,  C04B2235/3236 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3262 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/72 ,  C04B2235/77 ,  C04B2235/786 ,  C04B2235/79

摘要： A lead-free piezoelectric material that has stable, excellent piezoelectric constant and mechanical quality factor in a wide operating temperature range is provided. A piezoelectric material include a perovskite-type metal oxide represented by (Ba1-xCax)a(Ti1-yZry)O3 (where 1.00≦a≦1.01, 0.155≦x≦0.300, 0.041≦y≦0.069) as a main component, and manganese incorporated in the perovskite-type metal oxide. The manganese content relative to 100 parts by weight of the perovskite-type metal oxide is 0.12 parts by weight or more and 0.40 parts by weight or less on a metal basis.

摘要翻译： 提供了在宽工作温度范围内具有稳定，优异的压电常数和机械品质因数的无铅压电材料。 压电材料包括以（Ba1-xCax）a（Ti1-yZry）O3（其中1.00≤a≤1.01,0.155≤x≤0.300,0.041≤y≤0.069）为主要成分的钙钛矿型金属氧化物， 掺入钙钛矿型金属氧化物中的锰。 相对于100重量份的钙钛矿型金属氧化物的锰含量为0.12重量份以上且0.40重量份以下。

公开(公告)号：US09509235B2

公开(公告)日：2016-11-29

申请号：US14128519

申请日：2012-06-21

申请人： Tatsuo Furuta ,  Hiroshi Saito ,  Makoto Kubota ,  Kenichi Akashi

发明人： Tatsuo Furuta ,  Hiroshi Saito ,  Makoto Kubota ,  Kenichi Akashi

IPC分类号： H01L41/09 ,  H02N2/10 ,  C04B35/468 ,  H01L41/187 ,  H01L41/253 ,  H02N2/14 ,  H02N2/16 ,  C04B35/49 ,  C04B35/495 ,  C04B35/626 ,  C04B35/634 ,  H01L41/047 ,  H01L41/18 ,  H01L41/29 ,  B82Y30/00 ,  G02B7/08

CPC分类号： H01L41/312 ,  B82Y30/00 ,  C04B35/4682 ,  C04B35/49 ,  C04B35/495 ,  C04B35/6261 ,  C04B35/62685 ,  C04B35/63416 ,  C04B2235/3201 ,  C04B2235/3208 ,  C04B2235/3215 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3248 ,  C04B2235/3251 ,  C04B2235/3262 ,  C04B2235/3298 ,  C04B2235/442 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/656 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/768 ,  G02B7/08 ,  H01L41/047 ,  H01L41/18 ,  H01L41/1871 ,  H01L41/1873 ,  H01L41/253 ,  H01L41/257 ,  H01L41/29 ,  H02N2/103 ,  H02N2/142 ,  H02N2/163 ,  Y10T29/42

摘要： A piezoelectric element that can decrease the output voltage for detection relative to the input voltage for driving without requiring a step-down circuit between a detection phase electrode and a phase comparator and an oscillatory wave motor including the piezoelectric element are provided. A piezoelectric element includes a piezoelectric material having a first surface and a second surface, a common electrode disposed on the first surface, and a drive phase electrode and a detection phase electrode disposed on the second surface. An absolute value d(1) of a piezoelectric constant of the piezoelectric material in a portion (1) sandwiched between the drive phase electrode and the common electrode and an absolute value d(2) of a piezoelectric constant of the piezoelectric material in a portion (2) sandwiched between the detection phase electrode and the common electrode satisfy d(2)

摘要翻译： 提供一种压电元件，其能够相对于用于驱动的​​输入电压而降低用于检测的输出电压，而不需要检测相位电极和相位比较器之间的降压电路以及包括压电元件的振荡波马达。 压电元件包括​​具有第一表面和第二表面的压电材料，设置在第一表面上的公共电极，以及布置在第二表面上的驱动相电极和检测相位电极。 夹在驱动相电极和公共电极之间的部分（1）中的压电材料的压电常数的绝对值d（1）和压电材料的压电常数的绝对值d（2） （2）夹在检测相电极和公共电极之间，满足d（2）