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公开(公告)号：US20200144939A1
公开(公告)日：2020-05-07
申请号：US16733258
申请日：2020-01-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO , Chikahiro HORIGUCHI , Yasuhiro KURATANI , Satoshi ICHIHARA , Kiyoyuki MIYAZAWA
Abstract: A method of driving a vibration device including a light-transmitting body and a piezoelectric element connected to the light-transmitting body is provided to vibrate the light-transmitting body. The method atomizes and removes liquid drops sticking to the light-transmitting body. A driving voltage to vibrate the piezoelectric element is swept at a sweep speed in a range of about 1 Hz to about 50 Hz so as to sweep a vibration frequency of the piezoelectric element to cover a frequency range including both of a resonant frequency of the light-transmitting body without liquid drops sticking to the light-transmitting body and a resonant frequency of the light-transmitting body with the liquid drops sticking to the light-transmitting 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：US20200379320A1
公开(公告)日：2020-12-03
申请号：US16999105
申请日：2020-08-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO , Kenji NISHIYAMA , Yasuhiro KURATANI
Abstract: A vibration unit includes a light transmitting member including at least a portion of a detection region of an imaging element, and a vibration element including a vibrating body coupled to the light transmitting member. The light transmitting member includes a central region and a peripheral region located around the central region. The light transmitting member includes a hydrophilic film in the peripheral region thereof.
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公开(公告)号：US20200038914A1
公开(公告)日：2020-02-06
申请号：US16597871
申请日：2019-10-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Katsumi FUJIMOTO , Chikahiro HORIGUCHI , Kenji NISHIYAMA , Yasuhiro KURATANI , Shinichiro ICHIGUCHI
IPC: B06B1/06
Abstract: A vibration device includes a light-transmitting body that is located on a subject side of an imaging element, a cylindrical body that includes a first end portion, a second end portion on the opposite side from the first end portion, and an outer surface and an inner surface that connect the first end portion and the second end portion to each other, the cylindrical body being connected to the light-transmitting body and holding the light-transmitting body on the first end portion side thereof, and a piezoelectric element provided along a circumferential direction of the cylindrical body and that torsionally vibrates the cylindrical body.
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Patent Agency Ranking
公开(公告)号：US20210267051A1
公开(公告)日：2021-08-26
申请号：US17319396
申请日：2021-05-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yusuke KAMITSUBO , Ryosuke TAKADA , Tsuyoshi KATSUBE , Yasuhiro KURATANI , Shigeru TAGO , Tomohiro FURUMURA
Abstract: A resin multilayer substrate includes a multilayer body including resin layers and adhesive layers that are laminated, via conductors in the resin layers, and bonding portions in the adhesive layers. The bonding portion is connected to the via conductor. One of the resin layer and the adhesive layer is a gas high-permeable layer having a higher gas permeability than the other one. The bonding portion includes an organic substance, or has a higher void content rate per unit plane sectional area than the via conductor. At least a portion of each of the bonding portions contacts the gas high-permeable layers.
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公开(公告)号：US20210132372A1
公开(公告)日：2021-05-06
申请号：US17143250
申请日：2021-01-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yasuhiro KURATANI , Katsumi FUJIMOTO , Kenji NISHIYAMA , Chikahiro HORIGUCHI , Shinichiro ICHIGUCHI , Masaaki TAKATA , Yuzo MIZUSHIMA , Yuuki ISHII
Abstract: A cleaning device includes a casing holding an image capturing device, a protective cover disposed in a visual field of the image capturing device, a vibrator to vibrate the protective cover, a controller to control the vibrator, a monitor to detect an electrical characteristic value associated with a vibration of the vibrator, and a storage to store determination criteria based on which the controller evaluates the electrical characteristic value detected by the monitor. The controller is configured to evaluate the electrical characteristic value based on the plurality of determination criteria stored in the storage and clean a surface of the translucent body by controlling the vibrator according to the determination.
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公开(公告)号：US20200057301A1
公开(公告)日：2020-02-20
申请号：US16663448
申请日：2019-10-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Yasuhiro KURATANI , Katsumi FUJIMOTO , Kenji NISHIYAMA , Chikahiro HORIGUCHI , Shinichiro ICHIGUCHI , Masaaki TAKATA , Yuzo MIZUSHIMA , Yuuki ISHII
Abstract: A cleaning device includes a casing holding an image capturing device, a protective cover disposed in a visual field of the image capturing device, a vibrator to vibrate the protective cover, a controller to control the vibrator, a monitor to detect an electrical characteristic value associated with a vibration of the vibrator, and a storage to store determination criteria based on which the controller evaluates the electrical characteristic value detected by the monitor. The controller is configured to evaluate the electrical characteristic value based on the plurality of determination criteria stored in the storage and clean a surface of the translucent body by controlling the vibrator according to the determination.
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公开(公告)号：US20200039475A1
公开(公告)日：2020-02-06
申请号：US16598177
申请日：2019-10-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shinichiro ICHIGUCHI , Katsumi FUJIMOTO , Chikahiro HORIGUCHI , Kenji NISHIYAMA , Yasuhiro KURATANI
Abstract: A cleaning device for an imaging unit includes a housing that holds an imaging section, a protection cover provided in the visual field of the imaging section, a vibrator section that vibrates the protection cover, and a cleaning nozzle that discharges a cleaning liquid. The cleaning liquid discharged by the discharge section reaches a surface of side of the protection cover that is opposite to the side thereof adjacent to or in a vicinity of the imaging section. According to the vibrator section vibrating the protection cover, a portion of surface of the protection cover exhibits an amount of displacement larger than that of a portion of surface of the protection cover that the discharged cleaning liquid has reached.
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公开(公告)号：US20190151897A1
公开(公告)日：2019-05-23
申请号：US16258873
申请日：2019-01-28
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 first and second end surfaces, and a side wall portion that connects the first and second end surfaces, a piezoelectric vibrator provided on the first end surface of the tubular body, and a light transmitting body that is directly or indirectly connected to the second end surface and covers an opening in the second end surface of the tubular body. A connecting portion is connected to the first end surface of the tubular body inside or outside an opening in the first end surface. A tubular bent portion is connected to a surface of the connecting portion that faces toward the second end surface of the tubular body. The tubular bent portion extends in a direction from the first end surface toward the second end surface of the tubular body.
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