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公开(公告)号：US20140116188A1
公开(公告)日：2014-05-01
申请号：US14148964
申请日：2014-01-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO , Toshimaro YONEDA , Takuo HADA , Hideya HORIUCHI
CPC classification number: G01C19/56 , G01C19/5607 , G01C19/5621 , H01L41/09 , Y10T74/12 , Y10T74/18856
Abstract: A vibrator includes first and second circular or substantially circular arc-shaped beam portions, a base end-side weight portion, and a base end-side weight portion joining portion. The end portions of the first and second circular or substantially circular arc-shaped beam portions in an X-axis positive direction face each other across a distance in a Y-axis direction, and the end portions thereof in an X-axis negative direction are joined to each other. The base end-side weight portion is disposed between the first and second circular or substantially circular arc-shaped beam portions. The base end-side weight portion joining portion extends from a joining portion between the first circular or substantially circular arc-shaped beam portion and the second circular or substantially circular arc-shaped beam portion in the X-axis positive direction, and joined to the base end-side weight portion.
Abstract translation: 振动器包括第一和第二圆形或大致圆形的弧形梁部分，基端侧配重部分和基端侧配重部分接合部分。 第一和第二圆形或大致圆弧形的梁部分在X轴正方向上的端部在Y轴方向上的距离彼此相对，并且其端部在X轴负方向上是 相互加入 基端侧配重部分设置在第一和第二圆形或大致圆弧形的梁部分之间。 基端侧配重部接合部从第一圆弧状或大致圆弧状的梁部与第二圆形或大致圆弧状的梁部在X轴正方向上的接合部延伸，并与 基端侧配重部。
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公开(公告)号：US20240151560A1
公开(公告)日：2024-05-09
申请号：US18416941
申请日：2024-01-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsuhiro TABUCHI , Katsumi FUJIMOTO
CPC classification number: G01D11/245 , B08B7/02 , B60S1/56
Abstract: A housing containing an optical sensor, including a light-transmitting body, a housing base to contain the optical sensor, the housing base holding the light-transmitting body in such a way that the light-transmitting body is able to vibrate, and one or a plurality of actuators that vibrate the light-transmitting body. A sensor device includes the housing and the optical sensor contained in the housing.
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公开(公告)号：US20230390712A1
公开(公告)日：2023-12-07
申请号：US18237022
申请日：2023-08-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO
IPC: B01F23/231 , B01F23/23
CPC classification number: B01F23/23105 , B01F23/238
Abstract: A bubble generating device includes a vibration plate, a first cylindrical body, a spring portion, a second cylindrical body, and a piezoelectric element. The vibration plate includes openings, a first surface in contact with a liquid in a liquid tank, and a second surface in contact with a gas. The first cylindrical body has a first end portion supporting the vibration plate. The spring portion has a plate shape and supports a second portion of the first cylindrical body. The second cylindrical body has an end portion supporting the spring portion at a position outward of a position at which the first cylindrical body is supported. The piezoelectric element causes the spring portion to vibrate and is inward of a portion of a surface of the spring portion supported by the second cylindrical body.
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公开(公告)号：US20210154702A1
公开(公告)日：2021-05-27
申请号：US17137504
申请日：2020-12-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO , Yuuki ISHII , Hitoshi SAKAGUCHI
Abstract: A vibration device includes a protective cover, a first cylindrical body, a plate spring, a second cylindrical body, a piezoelectric element, and a vibrating plate. The vibration device further includes a non-equilibrium structure that removes a mass of a portion of or adds a mass to at least one of the protective cover, the first cylindrical body, the plate spring, the second cylindrical body, and the vibrating plate.
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公开(公告)号：US20210152149A1
公开(公告)日：2021-05-20
申请号：US17161727
申请日：2021-01-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yutaka KISHIMOTO , Shinsuke IKEUCHI , Katsumi FUJIMOTO , Tetsuya KIMURA , Fumiya KUROKAWA
Abstract: A piezoelectric device includes a membrane portion and a piezoelectric layer made of single crystal of a piezoelectric body. At least a portion of the piezoelectric layer is included in the membrane portion. An electrode is provided on a surface of the piezoelectric layer in the membrane portion. The piezoelectric layer includes a first polarization region in a first polarization state and a second polarization region in a second polarization state, and the first polarization region and the second polarization region are spaced apart from each other in a thickness direction or an in-plane direction.
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Patent Agency Ranking
公开(公告)号：US20200379321A1
公开(公告)日：2020-12-03
申请号：US16999106
申请日：2020-08-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO
Abstract: A vibration device includes a cylindrical body, a light-transmissive body connected to a first end portion of the cylindrical body, and a piezoelectric element fixed to the cylindrical body. The cylindrical body includes a first flange portion extending radially outward from an outer peripheral surface, and a second flange portion. The first flange portion is located closer to the first end portion side relative to the second flange portion. The piezoelectric element is fixed to the second flange portion. By driving the piezoelectric element, the first flange portion vibrates to displace an outer peripheral edge of the first flange portion in an axial direction of the cylindrical body.
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公开(公告)号：US20190176195A1
公开(公告)日：2019-06-13
申请号：US16274287
申请日：2019-02-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO , Chikahiro HORIGUCHI , Kenji NISHIYAMA , Yasuhiro KURATANI , Shinichiro ICHIGUCHI
Abstract: A vibrating device includes a tubular body including a first end, a second end, and a plurality of side surfaces that connect the first and second ends, piezoelectric vibrators that are fixed to the tubular body and vibrate the tubular body, and a light transmitting body unit that is directly or indirectly connected to the second end of the tubular body.
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公开(公告)号：US20180292646A1
公开(公告)日：2018-10-11
申请号：US16008071
申请日：2018-06-14
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO , Shinsuke IKEUCHI , Kenji NISHIYAMA , Masanobu NOMURA
CPC classification number: G02B27/0006 , G03B17/02 , G03B17/08 , G03B17/568 , G03B2205/0061 , H04N5/22521 , H04N5/2253
Abstract: A vibration device includes a cylindrical vibration body portion including a cylindrical member and a piezoelectric vibrator fixed to the cylindrical member, and a light-transparent body portion that includes an outer peripheral portion connected to an end surface of the cylindrical member and a light-transparent portion positioned in front of a lens. The light-transparent body portion vibrates in a bending mode by vibration of the cylindrical vibration body portion. The bending mode includes a first bending mode in which a center-maximum-displacement portion of the light-transparent body portion and the outer peripheral portion of the light-transparent body portion connected to the end surface are displaced in the same direction and a second bending mode in which the center-maximum-displacement portion of the light-transparent body portion and the outer peripheral portion of the light-transparent body portion are displaced in opposite directions.
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公开(公告)号：US20150013457A1
公开(公告)日：2015-01-15
申请号：US14501109
申请日：2014-09-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takuo HADA , Katsumi FUJIMOTO , Hideya HORIUCHI , Toshimaro YONEDA
IPC: G01P15/097 , G01P15/09
CPC classification number: G01P15/097 , G01P15/09 , G01P15/10 , G01P2015/0814
Abstract: A weight member includes two sides opposite to each other in an X-axis direction when looked at in a plan view. A vibrating beam includes one end portion connected at one location to a fixation member and the other end portion connected at one location to one of the two sides of the weight member in the X-axis direction when looked at in a plan view. The vibrating beam supports the weight member to be displaceable in the X-axis direction. A holding beam includes one end portion connected at one location to the fixation member and the other end portion connected at one location to the other of the two sides of the weight member opposing to each other in the X-axis direction when looked at in a plan view. The holding beam supports the weight member to be displaceable in the X-axis direction. A driver is disposed on the vibrating beam and vibrates the vibrating beam. A detector is disposed on the vibrating beam and configured to output a detection signal changes according to deformation of the vibrating beam.
Abstract translation: 当在平面图中看时，配重构件包括在X轴方向上彼此相对的两个侧面。 振动梁包括在一个位置处连接到固定构件的一个端部，并且在俯视图中观察时，将另一端部在X轴方向上的一个位置连接到配重构件的两侧中的一个侧面。 振动梁支撑配重构件在X轴方向上可移动。 保持梁包括在一个位置处连接到固定构件的一个端部，并且在一个位置处连接到配重构件的两个侧面中的另一个端部的另一端部在X轴方向上彼此相对时， 平面图。 保持梁支撑配重构件以在X轴方向上移动。 驱动器设置在振动梁上并振动振动梁。 检测器设置在振动梁上并且被配置为输出根据振动梁的变形而改变的检测信号。
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公开(公告)号：US20230408298A1
公开(公告)日：2023-12-21
申请号：US18459561
申请日：2023-09-01
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO
IPC: G01D5/20
CPC classification number: G01D5/2073
Abstract: An angle sensor is provided that includes a multilayer substrate having multiple layers, a drive coil in the multilayer substrate, and first and second detection coils, which can be two-phase detection coils, that are provided in the multilayer substrate. Each of the multiple layers in the multilayer substrate has a first main surface and a second main surface facing each other. The drive coil and the first and second detection coils are provided on respective different main surfaces, among the first main surfaces and the second main surfaces of the multiple layers in the multilayer substrate.
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