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：US20130241347A1

公开(公告)日：2013-09-19

申请号：US13989970

申请日：2011-12-15

申请人： Tatsuya Suzuki ,  Masami Tsukamoto ,  Mikio Shimada ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Makoto Kubota ,  Jumpei Hayashi

发明人： Tatsuya Suzuki ,  Masami Tsukamoto ,  Mikio Shimada ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Makoto Kubota ,  Jumpei Hayashi

IPC分类号： H01L41/187

CPC分类号： H01L41/43 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1646 ,  B82Y30/00 ,  C04B35/4682 ,  C04B35/62655 ,  C04B35/62695 ,  C04B35/64 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3222 ,  C04B2235/3227 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3262 ,  C04B2235/3267 ,  C04B2235/3287 ,  C04B2235/3293 ,  C04B2235/3298 ,  C04B2235/3418 ,  C04B2235/441 ,  C04B2235/442 ,  C04B2235/443 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/761 ,  C04B2235/85 ,  H01L41/1871 ,  H02N2/106 ,  H02N2/163

摘要： Provided are a barium titanate-based piezoelectric ceramics having satisfactory piezoelectric performance and a satisfactory mechanical quality factor (Qm), and a piezoelectric element using the same. Specifically provided are a piezoelectric ceramics, including: crystal particles; and a grain boundary between the crystal particles, in which the crystal particles each include barium titanate having a perovskite-type structure and manganese at 0.04% by mass or more and 0.20% by mass or less in terms of a metal with respect to the barium titanate, and the grain boundary includes at least one compound selected from the group consisting of Ba4Ti12O27 and Ba6Ti17O40, and a piezoelectric element using the same.

摘要翻译： 提供一种具有令人满意的压电性能和令人满意的机械品质因数（Qm）的钛酸钡基压电陶瓷，以及使用它的压电元件。 具体提供的是压电陶瓷，包括：晶体颗粒; 晶体粒子各自包含钛酸钙，钛酸钙，钛，钛，钛，钛，钛，钛，钛，钛，钛， 钛酸盐，并且晶界包括至少一种选自Ba 4 Ti 12 O 27和Ba 6 Ti 17 O 40的化合物和使用其的压电元件。

公开(公告)号：US09231188B2

公开(公告)日：2016-01-05

申请号：US13989970

申请日：2011-12-15

申请人： Tatsuya Suzuki ,  Masami Tsukamoto ,  Mikio Shimada ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Makoto Kubota ,  Jumpei Hayashi

发明人： Tatsuya Suzuki ,  Masami Tsukamoto ,  Mikio Shimada ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Makoto Kubota ,  Jumpei Hayashi

IPC分类号： H01L41/187 ,  B41J2/16 ,  C04B35/468 ,  C04B35/626 ,  C04B35/64 ,  H01L41/43 ,  H02N2/10 ,  H02N2/16 ,  B82Y30/00

CPC分类号： H01L41/43 ,  B41J2/161 ,  B41J2/1623 ,  B41J2/1632 ,  B41J2/1642 ,  B41J2/1646 ,  B82Y30/00 ,  C04B35/4682 ,  C04B35/62655 ,  C04B35/62695 ,  C04B35/64 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3222 ,  C04B2235/3227 ,  C04B2235/3232 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3262 ,  C04B2235/3267 ,  C04B2235/3287 ,  C04B2235/3293 ,  C04B2235/3298 ,  C04B2235/3418 ,  C04B2235/441 ,  C04B2235/442 ,  C04B2235/443 ,  C04B2235/449 ,  C04B2235/5445 ,  C04B2235/5454 ,  C04B2235/6562 ,  C04B2235/6567 ,  C04B2235/761 ,  C04B2235/85 ,  H01L41/1871 ,  H02N2/106 ,  H02N2/163

摘要： Provided are a barium titanate-based piezoelectric ceramics having satisfactory piezoelectric performance and a satisfactory mechanical quality factor (Qm), and a piezoelectric element using the same. Specifically provided are a piezoelectric ceramics, including: crystal particles; and a grain boundary between the crystal particles, in which the crystal particles each include barium titanate having a perovskite-type structure and manganese at 0.04% by mass or more and 0.20% by mass or less in terms of a metal with respect to the barium titanate, and the grain boundary includes at least one compound selected from the group consisting of Ba4Ti12O27 and Ba6Ti17O40, and a piezoelectric element using the same.

摘要翻译： 提供一种具有令人满意的压电性能和令人满意的机械品质因数（Qm）的钛酸钡基压电陶瓷，以及使用它的压电元件。 具体提供的是压电陶瓷，包括：晶体颗粒; 晶体粒子各自包含钛酸钙，钛酸钙，钛，钛，钛，钛，钛，钛，钛，钛，钛， 钛酸盐，并且晶界包括至少一种选自Ba 4 Ti 12 O 27和Ba 6 Ti 17 O 40的化合物和使用其的压电元件。

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：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：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：US09825213B2

公开(公告)日：2017-11-21

申请号：US13977915

申请日：2011-12-22

申请人： Mikio Shimada ,  Toshiaki Aiba ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Takayuki Watanabe

发明人： Mikio Shimada ,  Toshiaki Aiba ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Takayuki Watanabe

IPC分类号： H01L41/187 ,  H01L41/09 ,  H01L41/43 ,  B08B7/02 ,  B41J2/14 ,  H02N2/10 ,  H02N2/16

CPC分类号： H01L41/1871 ,  B08B7/028 ,  B41J2/14233 ,  H01L41/0973 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163

摘要： A piezoelectric element having an improved piezoelectric constant is provided, and a liquid discharge head, an ultrasonic motor, and a dust removing device, each of which uses the above piezoelectric element, are also provided. A piezoelectric element at least includes a pair of electrodes and a piezoelectric material provided in contact with the pair of electrodes, the piezoelectric material is formed of an aggregate of crystal grains containing barium titanate as a primary component, and among the crystal grains of the aggregate, crystal grains at least in contact with the electrodes have dislocation layers in the grains. A liquid discharge head, an ultrasonic motor, and a dust removing device each use the above piezoelectric element.

公开(公告)号：US20140084750A1

公开(公告)日：2014-03-27

申请号：US13977915

申请日：2011-12-22

申请人： Mikio Shimada ,  Toshiaki Aiba ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Takayuki Watanabe

发明人： Mikio Shimada ,  Toshiaki Aiba ,  Toshihiro Ifuku ,  Takanori Matsuda ,  Takayuki Watanabe

IPC分类号： H01L41/187

CPC分类号： H01L41/1871 ,  B08B7/028 ,  B41J2/14233 ,  H01L41/0973 ,  H01L41/43 ,  H02N2/106 ,  H02N2/163

摘要： A piezoelectric element having an improved piezoelectric constant is provided, and a liquid discharge head, an ultrasonic motor, and a dust removing device, each of which uses the above piezoelectric element, are also provided. A piezoelectric element at least includes a pair of electrodes and a piezoelectric material provided in contact with the pair of electrodes, the piezoelectric material is formed of an aggregate of crystal grains containing barium titanate as a primary component, and among the crystal grains of the aggregate, crystal grains at least in contact with the electrodes have dislocation layers in the grains. A liquid discharge head, an ultrasonic motor, and a dust removing device each use the above piezoelectric element.

摘要翻译： 提供了具有改善的压电常数的压电元件，并且还提供了使用上述压电元件的液体排出头，超声波马达和除尘装置。 压电元件至少包括一对电极和设置成与该对电极接触的压电材料，压电材料由含有钛酸钡作为主要成分的晶粒聚集体形成，并且在聚集体的晶粒中 至少与电极接触的晶粒在晶粒中具有位错层。 液体排出头，超声波马达和除尘装置均使用上述压电元件。

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.