公开(公告)号：US20150359514A1

公开(公告)日：2015-12-17

申请号：US14829686

申请日：2015-08-19

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroshi MATSUDA

IPC: A61B8/00

CPC classification number: A61B8/4494 ,  A61B8/4444

Abstract: An ultrasonic transducer includes a support body, a first piezoelectric layer, a first conductive layer, a second conductive layer and a second piezoelectric layer. The support body has an opening section and a displacement section covering the opening section on one side of the support body. The first piezoelectric layer is disposed inside of the displacement section when viewed in a plan view along a thickness direction of the support body. The first conductive layer and the second conductive layer contact with the first piezoelectric layer. The second piezoelectric layer is disposed over the first conductive layer, apart from the first piezoelectric layer when viewed in the plan view. The second conductive layer is disposed over the second piezoelectric layer and intersects the first conductive layer when viewed in the plan view.

Abstract translation: 超声换能器包括支撑体，第一压电层，第一导电层，第二导电层和第二压电层。 支撑体具有开口部和覆盖支撑体一侧的开口部的位移部。 当沿着支撑体的厚度方向的平面图中观察时，第一压电层设置在位移部分的内部。 第一导电层和第二导电层与第一压电层接触。 当在平面图中观察时，第二压电层设置在第一导电层之上，远离第一压电层。 当在平面图中观察时，第二导电层设置在第二压电层上并与第一导电层相交。

公开(公告)号：US20150094596A1

公开(公告)日：2015-04-02

申请号：US14499806

申请日：2014-09-29

Applicant: SEIKO EPSON CORPORATION

Inventor： Kanechika KIYOSE ,  Hironori SUZUKI ,  Hiroshi MATSUDA

IPC: A61B8/00 ,  A61B8/08 ,  G10K11/30

CPC classification number: A61B8/4427 ,  A61B8/4483 ,  A61B8/461 ,  B06B1/0629 ,  G10K11/30

Abstract: An ultrasonic device includes a base, a plurality of ultrasonic transducer elements, an acoustic adjustment layer, and a wall part. The ultrasonic transducer elements are arranged in an array form on the base, each of the ultrasonic transducer elements having a vibration film. The acoustic adjustment layer is disposed on each of the ultrasonic transducer elements. The wall part is arranged between adjacent ones of the ultrasonic transducer elements when viewed in a plan view along a thickness direction of the base such that the acoustic adjustment layer on the adjacent ones of the ultrasonic transducer elements are separated by the wall part in a range of at least a portion of a height of the acoustic adjustment layer measured from the base. The wall part has an acoustic impedance that is higher than an acoustic impedance of the acoustic adjustment layer.

Abstract translation: 超声波装置包括基座，多个超声换能器元件，声调节层和壁部。 超声波换能器元件以阵列形式布置在基座上，每个超声波换能器元件具有振动膜。 声调节层设置在每个超声换能器元件上。 当沿着基座的厚度方向在平面图中观察时，壁部分布置在相邻的超声波换能器元件之间，使得相邻超声波换能器元件上的声调节层被壁部分在一定范围内 至少一部分从该基底测量的声调节层的高度。 壁部分具有高于声调节层的声阻抗的声阻抗。

公开(公告)号：US20140059821A1

公开(公告)日：2014-03-06

申请号：US14072913

申请日：2013-11-06

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiroshi MATSUDA

IPC: H01L41/27

CPC classification number: H01L41/27 ,  B06B1/06 ,  H01L41/0475 ,  H01L41/0815 ,  H01L41/0973 ,  Y10T29/42

Abstract: A piezoelectric element includes a support body having a displacing part capable of undergoing displacement, a lower electrode layer having a lower main electrode body and a lower electrode wire part with the lower main electrode body being formed on the support body and provided within the displacing part in a plan view and the lower electrode wire part being connected to the lower main electrode body and provided across an interior and an exterior of the displacing part, a first piezoelectric layer provided on the lower main electrode body, an upper electrode layer provided across the interior and exterior of the displacing part with at least a part of the upper electrode layer being layered on the first piezoelectric layer and insulated from the lower electrode layer, and a second piezoelectric layer provided on the support body to cover at least a part of the lower electrode wire part.

Abstract translation: 压电元件包括​​具有能够进行位移的移位部的支撑体，具有下主电极体的下电极层和下电极线部，下主电极体形成在支撑体上，并设置在位移部 在平面图中，下电极线部分连接到下主电极体并且设置在移位部分的内部和外部，设置在下主电极体上的第一压电层， 位移部分的内部和外部具有上电极层的至少一部分层叠在第一压电层上并与下电极层绝缘;以及第二压电层，设置在支撑体上以覆盖至少一部分 下电极线部分。

公开(公告)号：US20130324853A1

公开(公告)日：2013-12-05

申请号：US13904317

申请日：2013-05-29

Applicant: Seiko Epson Corporation

Inventor： Hiroshi MATSUDA

IPC: G10K11/18 ,  A61B8/00

CPC classification number: G10K11/18 ,  A61B8/4405 ,  A61B8/4411 ,  A61B8/4427 ,  A61B8/4444 ,  A61B8/4483 ,  A61B8/4494 ,  A61B8/461 ,  A61B8/54 ,  B06B1/0629 ,  G01S7/5202 ,  G01S15/8925 ,  G10K11/346

Abstract: A drive apparatus for an ultrasonic device includes a transmission circuit for outputting a first through n-th (where n is an integer 2 or greater) drive signal to first through n-th driving electrode line belonging to the ultrasonic device, as well as a control unit for controlling the transmission circuit. In a case where the phase difference between an i-th (where i is an integer 1≦i≦n−1) drive signal and an i+1-th drive signal is a first phase difference, the transmission circuit outputs the first through n-th drive signals at a greater voltage amplitude than a case where the phase difference between the i-th drive signal and the i+1-th drive signal is a second phase difference greater than the first phase difference.

Abstract translation: 一种用于超声波装置的驱动装置包括用于将属于超声装置的第一至第n驱动电极线的第一至第n（其中n为整数2以上）的驱动信号输出的发送电路，以及 用于控制传输电路的控制单元。 在第i（其中i是整数1 @ i @ n-1）驱动信号和第i + 1驱动信号之间的相位差是第一相位差的情况下，发送电路输出第一至第 第n驱动信号的电压幅度大于第i驱动信号和第i + 1驱动信号之间的相位差大于第一相位差的第二相位差的情况。