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

IPC: G01L1/00 ,  G01S7/481 ,  G01S17/08

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.

公开(公告)号：US20250146894A1

公开(公告)日：2025-05-08

申请号：US19018450

申请日：2025-01-13

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroshi WATANABE ,  Koichi INOUE ,  Takatoshi KATO

IPC: G01L5/105 ,  G01S7/48 ,  G01S7/481 ,  G01S17/48

Abstract: An optical sensor includes two light emitters with the same or substantially the same temperature dependence of luminous intensity of light. A reflector reflects and diffuses light emitted by the light emitters such that a portion of the reflected light is incident on a light receiver. An elastic support supports the reflector, and deforms and changes a relative position of the reflector and the light emitters and the light receiver. A processor calculates a physical quantity depending on an amount of deformation of the elastic support based a ratio between two amounts of light received by the light receiver when respective light emitters emit light at different timings. The light emitters and the light receiver are fixed relative to each other, and a distance from one of the light emitters to the light receiver is different from a distance from another of the light emitters to the light receiver.

公开(公告)号：US20240397259A1

公开(公告)日：2024-11-28

申请号：US18797710

申请日：2024-08-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takatoshi KATO ,  Hirofumi WATANABE ,  Hironari YAMAMOTO ,  Koichi INOUE

IPC: H04R1/46 ,  A61B7/04 ,  H04R1/04 ,  H04R1/10 ,  H04R7/04 ,  H04R7/20 ,  H04R7/26 ,  H04R17/02

Abstract: A bioacoustic sensor includes a diaphragm including a contact surface contactable with a living body and a back surface, and being displaceable in a thickness direction, and a piezoelectric plate including a first surface facing the back surface of the diaphragm with a gap therebetween and a second surface on a side opposite to the first surface to convert the vibration of the diaphragm into an electric signal. The diaphragm is in contact with a center side portion of the first surface of the piezoelectric plate when viewed in the thickness direction, and a housing supports an outer side portion of the second surface of the piezoelectric plate when viewed in the thickness direction.

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.

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.

公开(公告)号：US20220286773A1

公开(公告)日：2022-09-08

申请号：US17751793

申请日：2022-05-24

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takatoshi KATO ,  Hirofumi WATANABE ,  Hironari YAMAMOTO ,  Koichi INOUE

IPC: H04R1/46 ,  A61B7/04 ,  H04R7/04 ,  H04R17/02 ,  H04R1/04 ,  H04R7/20 ,  H04R7/26 ,  H04R1/10

Abstract: A bioacoustic sensor includes a diaphragm including a contact surface contactable with a living body and a back surface, and being displaceable in a thickness direction, and a piezoelectric plate including a first surface facing the back surface of the diaphragm with a gap therebetween and a second surface on a side opposite to the first surface to convert the vibration of the diaphragm into an electric signal. The diaphragm is in contact with a center side portion of the first surface of the piezoelectric plate when viewed in the thickness direction, and a housing supports an outer side portion of the second surface of the piezoelectric plate when viewed in the thickness direction.

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.