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公开(公告)号：US20220283303A1
公开(公告)日：2022-09-08
申请号：US17826272
申请日：2022-05-27
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takatoshi KATO , Hiroshi WATANABE , Kohei SUGAHARA , Yuta AOKI
Abstract: An optical sensor includes a first light source to emit light, a first photodetector to receive light and generate a signal representing a result of receiving the light, a cover made of an elastic material deformable in response to an external force and covering the first light source and the first photodetector, the cover including a reflective portion that reflects light and a transmissive portion that transmits light, a force detector to detect a force corresponding to deformation of the cover based on a signal from the first photodetector, the signal representing a result of receiving light emitted by the first light source, an optical assembly outside the covering component, and a proximity detector to detect the object being in proximity by using the optical assembly and one of the first light source and the first photodetector.
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公开(公告)号：US20220276405A1
公开(公告)日：2022-09-01
申请号：US17746176
申请日：2022-05-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi WATANABE , Kohei SUGAHARA , Takatoshi KATO
Abstract: An optical sensor includes a light source, a light receiver, and a convex portion. The light source emits light to an object. The light receiver receives reflected light of the emitted light reflected by an object and generates a signal showing a light reception result. The convex portion has a height higher than a height of the light source and the light receiver. The convex portion is between the light source and the light receiver to block reflected light from the light receiver when light from the light source is reflected within a range of a predetermined distance from the convex portion. The light receiver outputs a signal to show a light reception result of equal to or less than a threshold amount of light indicating that the reflected light is not received in response to proximity of the object being within a range of a predetermined distance.
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公开(公告)号：US20220128397A1
公开(公告)日：2022-04-28
申请号：US17569764
申请日：2022-01-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi WATANABE , Kohei SUGAHARA , Takatoshi KATO
Abstract: An optical sensor includes a light emitter to emit light, a light receiver to receive the light emitted from the light emitter, a first resin body that covers the light emitter and the light receiver to transmit the light emitted from the light emitter to emit the light outside, and a second resin body that seals the light emitter and the light receiver, in which the second resin body is included inside the first resin body, and the second resin body is harder than the first resin body.
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公开(公告)号：US20240044671A1
公开(公告)日：2024-02-08
申请号：US18382611
申请日：2023-10-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takatoshi KATO , Hiroshi WATANABE , Kohei SUGAHARA , Koichi INOUE
IPC: G01D5/241
CPC classification number: G01D5/241
Abstract: A proximity sensor includes one or more detection electrodes to be capacitively coupled to an object, a contact electrode contactable with the object, an excitation circuit connected to one of the one or more detection electrodes or the contact electrode to supply an excitation voltage to the electrode to which the excitation circuit is connected, and a detection circuit connected to the other of the one or more detection electrodes or the contact electrode to generate, based on a detection voltage at the electrode connected to the detection circuit, a detection signal in response to an electrostatic capacitance between the one of the one or more detection electrodes and the object. The detection circuit generates the detection signal in response to the electrostatic capacitance. The detection signal indicates a proximity of the object in contact with the contact electrode to the one of the one or more detection electrodes.
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公开(公告)号：US20210072101A1
公开(公告)日：2021-03-11
申请号：US16952158
申请日：2020-11-19
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takatoshi KATO , Hiroshi WATANABE , Kohei SUGAHARA , Hironari YAMAMOTO , Hiraku KAWAI
Abstract: A tactile and proximity sensor includes a light source, a light receiving section, and a cover. The light source emits light. The light receiving section receives light and generates a signal providing a result of the received light. The cover includes an elastic body that deforms under external force and that covers the light source and the light receiving section. The cover includes a reflective section that reflects light between the light source and the light receiving section and a transmission section that allows light to pass through in a first direction from the light source and that allows light to pass through in a second direction from the light receiving section.
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Patent Agency Ranking
公开(公告)号：US20250127478A1
公开(公告)日：2025-04-24
申请号：US19001139
申请日：2024-12-24
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroyuki KOMATSU , Takatoshi KATO , Hirofumi WATANABE , Kohei SUGAHARA
Abstract: An acoustic sensor includes a piezoelectric plate including a conductor plate with first and second surfaces, and a piezoelectric element on the second surface, a cover facing the first surface of the conductor plate, a support substrate facing the second surface of the conductor plate and the piezoelectric element, a first connector including a conductor between the piezoelectric element and the support substrate and electrically connecting the piezoelectric element and the support substrate, a first insulating structure including an insulator between the second surface of the conductor plate and the support substrate at an outer edge of the second surface of the conductor plate, and a second connector including a conductor on an outer edge of the first surface of the conductor plate and electrically connecting the conductor plate and the cover.
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公开(公告)号：US20240053210A1
公开(公告)日：2024-02-15
申请号：US18382094
申请日：2023-10-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi WATANABE , Kohei SUGAHARA , Takatoshi KATO , Koichi INOUE
CPC classification number: G01L1/005 , G01S7/4815 , G01S7/4816 , G01S17/08
Abstract: A sensor device includes a substrate, a force sensor on the substrate, and a proximity sensor including light emitting elements on the substrate and light receiving elements to receive light from the light emitting elements. At least one of the light emitting elements and the light receiving elements of the proximity sensor is located at three or more positions that surround the force sensor on the substrate. A position of a center of gravity with respect to the three or more positions is within a range in which the force sensor is positioned on the substrate.
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公开(公告)号：US20240220033A1
公开(公告)日：2024-07-04
申请号：US18610323
申请日：2024-03-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kohei SUGAHARA , Hiroshi WATANABE , Koichi INOUE , Takatoshi KATO
IPC: G06F3/03 , A63F13/213 , A63F13/218 , G06F3/038
CPC classification number: G06F3/0308 , A63F13/213 , A63F13/218 , G06F3/038
Abstract: A user interface device includes a grip including dimensions in a radial direction and a circumferential direction and extending in a longitudinal direction, and at least one optical sensor provided at the grip including a proximity sensor that includes a light emitter and a light receiver, and a force sensor to detect a contact force by an object. The proximity sensor emits light from the light emitter to a predetermined detection range around the force sensor, and detects when the object is in proximity to the force sensor according to a light reception result obtained by light incident from the detection range to be received by the light receiver. The detection range is biased to one side in the circumferential direction from a position of the force sensor toward an outer side portion in the radial direction, and is wider in the circumferential direction than in the longitudinal direction.
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公开(公告)号：US20240142323A1
公开(公告)日：2024-05-02
申请号：US18404941
申请日：2024-01-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi WATANABE , Kohei SUGAHARA , Koichi INOUE , Takatoshi KATO
IPC: G01L1/24
CPC classification number: G01L1/24
Abstract: A sensor device includes a force sensor on a substrate, a light emitter to emit light from over the substrate, a light receiver to receive light on the substrate and detect proximity of an object, and an elastic member made of an elastic material and including a first portion covering the force sensor, a second portion extending around the light emitter and the light receiver, through at least spaces between the light emitter, the light receiver, and the force sensor, and a third portion coupling the first portion and the second portion to each other. The third portion in the elastic member has a lower height from the substrate than the first and second portions.
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公开(公告)号：US20210310835A1
公开(公告)日：2021-10-07
申请号：US17347701
申请日：2021-06-15
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takatoshi KATO , Hiroshi WATANABE , Kohei SUGAHARA
Abstract: A tactile and proximity sensor includes a light source, a light receiver, an elastic structure, and a reflecting mirror. The light source emits light. The light receiver receives light and generates a signal indicating a result of reception of the light. The elastic structure includes an elastic body deformable in response to an external force and includes a reflecting portion to reflect light and transmitting portions to transmit light. The reflecting mirror faces the light source to guide the light from the light source to the reflecting portion and the transmitting portion.
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