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1.发明申请CAPACITIVE MICROMACHINED ULTRASONIC TRANSDUCER AND TEST OBJECT INFORMATION ACQUIRING APPARATUS INCLUDING CAPACITIVE MICROMACHINED ULTRASONIC TRANSDUCER 审中-公开电容式微型超声波传感器和测试对象信息获取装置，包括电容式微型超声波传感器公开(公告)号：US20160153939A1
公开(公告)日：2016-06-02
申请号：US14949482
申请日：2015-11-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ayako Kato , Kazutoshi Torashima
CPC classification number: G01N29/2406 , B06B1/0292
Abstract: A capacitive micromachined ultrasonic transducer includes a first insulating film and a second insulating film disposed with a gap therebetween, a first electrode and a second electrode disposed on outer surfaces of the first and second insulating films, respectively, with the gap therebetween, at least one cell having an electrostatic capacitance between the first and second electrodes that varies with a variation of a thickness of the gap caused by displacement of the second insulating film and the second electrode, and a voltage applying unit configured to apply a voltage to between the first electrode and the second electrode. An electric field strength applied to the first insulating film is closer to an electric field strength that causes dielectric breakdown than an electric field strength applied to the second insulating film.
Abstract translation: 一种电容式微加工超声波换能器包括第一绝缘膜和设置在其间的间隔的第二绝缘膜，分别设置在第一和第二绝缘膜的外表面上的第一电极和第二电极，其间具有间隙，至少一个 所述第一电极和第二电极之间的静电电容随着由所述第二绝缘膜和所述第二电极的位移引起的所述间隙的厚度的变化而变化;电压施加单元，被配置为施加电压到所述第一电极 和第二电极。 施加到第一绝缘膜的电场强度比施加到第二绝缘膜的电场强度更接近导致电介质击穿的电场强度。
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公开(公告)号：US20160103100A1
公开(公告)日：2016-04-14
申请号：US14877082
申请日：2015-10-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takahiro Akiyama , Ayako Kato
CPC classification number: G01N29/2406 , B06B1/0207 , B06B1/0292 , B06B2201/51 , G01N29/34
Abstract: A drive method for an electrostatic capacitance type transducer is provided. The electrostatic capacitance type transducer includes a plurality of elements, the element including one or more cells, the cell having a first electrode and a second electrode separated from the first electrode by a gap, the first electrode or the second electrode in the plurality of elements being applied with an alternating current voltage. The plurality of elements includes a first element and a second element. A waveform of an alternating current voltage applied to the first element is set the similar as a waveform of an alternating current voltage applied to the second element. A phase difference between the alternating current voltage applied to the first element and the alternating current voltage applied to the second element is set equal to approximately 90 degrees.
Abstract translation: 提供了一种用于静电电容型传感器的驱动方法。 静电电容型换能器包括多个元件，元件包括一个或多个单元，该单元具有第一电极和第二电极，该第一电极和第二电极通过间隙与第一电极分离，多个元件中的第一电极或第二电极 施加交流电压。 多个元件包括第一元件和第二元件。 施加到第一元件的交流电压的波形被设置为与施加到第二元件的交流电压的波形相似。 施加到第一元件的交流电压与施加到第二元件的交流电压之间的相位差设定为大约90度。
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3.发明申请TRANSDUCER, METHOD FOR MANUFACTURING TRANSDUCER, AND OBJECT INFORMATION ACQUIRING APPARATUS 有权变频器，制造传感器的方法和获取装置的对象信息公开(公告)号：US20140313861A1
公开(公告)日：2014-10-23
申请号：US14254270
申请日：2014-04-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazutoshi Torashima , Ayako Kato , Takahiro Akiyama
CPC classification number: H04R19/00 , B06B1/0292 , B06B2201/20 , H04R31/00
Abstract: A transducer includes at least one element including a plurality of cells. Each of the cells includes a pair of electrodes disposed with a gap therebetween and a vibrating membrane including one of the electrodes, and the vibrating membrane is vibratably supported. First and second cells of the plurality of cells in the element have the gaps that communicate with each other, and the first cell and a third cell in the element have the gaps that do not communicate with each other.
Abstract translation: 换能器包括至少一个包括多个单元的元件。 每个电池包括一对电极，它们之间具有间隙，并且包括一个电极的振动膜，振动膜被可振动地支撑。 元件中的多个单元的第一和第二单元具有彼此通信的间隙，并且元件中的第一单元和第三单元具有彼此不连通的间隙。
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Patent Agency Ranking
公开(公告)号：US10101303B2
公开(公告)日：2018-10-16
申请号：US14949482
申请日：2015-11-23
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ayako Kato , Kazutoshi Torashima
Abstract: A capacitive micromachined ultrasonic transducer includes a first insulating film and a second insulating film disposed with a gap therebetween, a first electrode and a second electrode disposed on outer surfaces of the first and second insulating films, respectively, with the gap therebetween, at least one cell having an electrostatic capacitance between the first and second electrodes that varies with a variation of a thickness of the gap caused by displacement of the second insulating film and the second electrode, and a voltage applying unit configured to apply a voltage to between the first electrode and the second electrode. An electric field strength applied to the first insulating film is closer to an electric field strength that causes dielectric breakdown than an electric field strength applied to the second insulating film.
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公开(公告)号：US10119941B2
公开(公告)日：2018-11-06
申请号：US14877082
申请日：2015-10-07
Applicant: CANON KABUSHIKI KAISHA
Inventor： Takahiro Akiyama , Ayako Kato
Abstract: A drive method for an electrostatic capacitance type transducer is provided. The electrostatic capacitance type transducer includes a plurality of elements, the element including one or more cells, the cell having a first electrode and a second electrode separated from the first electrode by a gap, the first electrode or the second electrode in the plurality of elements being applied with an alternating current voltage. The plurality of elements includes a first element and a second element. A waveform of an alternating current voltage applied to the first element is set the similar as a waveform of an alternating current voltage applied to the second element. A phase difference between the alternating current voltage applied to the first element and the alternating current voltage applied to the second element is set equal to approximately 90 degrees.
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公开(公告)号：US10016788B2
公开(公告)日：2018-07-10
申请号：US14547884
申请日：2014-11-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ayako Kato , Kazutoshi Torashima
CPC classification number: B06B1/0292 , B06B1/0207 , B06B2201/20
Abstract: Provided are a method, a device and the like for driving a capacitance transducer that enable reduction of transmission sound pressure variation caused by variation in characteristics of a capacitance transducer used for, e.g., an ultrasound conversion element. A method for driving a capacitance transducer including a plurality of elements each including cells each having a structure in which a vibration membrane including one electrode of a pair of electrodes formed with a cavity therebetween is supported in such a manner that the vibration membrane can vibrate is provided.
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7.发明授权公开(公告)号：US09986342B2
公开(公告)日：2018-05-29
申请号：US14254270
申请日：2014-04-16
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kazutoshi Torashima , Ayako Kato , Takahiro Akiyama
CPC classification number: H04R19/00 , B06B1/0292 , B06B2201/20 , H04R31/00
Abstract: A transducer includes at least one element including a plurality of cells. Each of the cells includes a pair of electrodes disposed with a gap therebetween and a vibrating membrane including one of the electrodes, and the vibrating membrane is vibratably supported. First and second cells of the plurality of cells in the element have the gaps that communicate with each other, and the first cell and a third cell in the element have the gaps that do not communicate with each other.
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公开(公告)号：US20150146502A1
公开(公告)日：2015-05-28
申请号：US14547884
申请日：2014-11-19
Applicant: CANON KABUSHIKI KAISHA
Inventor： Ayako Kato , Kazutoshi Torashima
IPC: B06B1/02
CPC classification number: B06B1/0292 , B06B1/0207 , B06B2201/20
Abstract: Provided are a method, a device and the like for driving a capacitance transducer that enable reduction of transmission sound pressure variation caused by variation in characteristics of a capacitance transducer used for, e.g., an ultrasound conversion element. A method for driving a capacitance transducer including a plurality of elements each including cells each having a structure in which a vibration membrane including one electrode of a pair of electrodes formed with a cavity therebetween is supported in such a manner that the vibration membrane can vibrate is provided.
Abstract translation: 提供了用于驱动电容换能器的方法，装置等，其能够降低由用于例如超声波转换元件的电容换能器的特性变化引起的透射声压变化。 一种用于驱动电容换能器的方法，该电容换能器包括多个元件，每个元件包括各自具有这样的结构的单元，所述单元具有其中包括形成有空腔的一对电极的一个电极的振动膜以使振动膜能够振动的方式被支撑 提供。
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