公开(公告)号：US20240085256A1

公开(公告)日：2024-03-14

申请号：US18508167

申请日：2023-11-13

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yodai MATSUMURA ,  Takashi MATSUMOTO ,  Susumu URAGAMI ,  Yuta MORIURA ,  Takafumi HAMANO ,  Hiroyuki FURUYA

IPC: G01L5/101 ,  G01L1/14

CPC classification number: G01L5/101 ,  G01L1/142

Abstract: A load sensor is configured to detect, as change in capacitance, change, in a contact area between an electrically-conductive elastic body and a dielectric body, that occurs due to a load applied to an upper face of the load sensor. In the load sensor, a plurality of sensor parts each configured to detect the load are disposed so as to be arranged in a plane direction, and a buffer part configured to suppress displacement of the upper face due to the load applied to a first sensor part from being propagated to a second sensor part adjacent to the first sensor part is disposed between the first sensor part and the second sensor part.

公开(公告)号：US20230324236A1

公开(公告)日：2023-10-12

申请号：US18210539

申请日：2023-06-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi MATSUMOTO ,  Hiroyuki FURUYA ,  Yuta MORIURA ,  Susumu URAGAMI ,  Yodai MATSUMURA

IPC: G01L1/14

CPC classification number: G01L1/142

Abstract: A load sensor includes: a base member; an electrically-conductive elastic body having a band-like shape and disposed on a surface of the base member; an electrically-conductive member disposed so as to be superposed on the electrically-conductive elastic body; a dielectric body provided between the electrically-conductive elastic body and the electrically-conductive member; and a substrate configured to connect the electrically-conductive elastic body and an external circuit. The substrate includes an electrode extending in a width direction and a length direction of the electrically-conductive elastic body, and is fixed to the base member in a state where the electrode is pressed against a surface of the electrically-conductive elastic body.

公开(公告)号：US20220244112A1

公开(公告)日：2022-08-04

申请号：US17728245

申请日：2022-04-25

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi MATSUMOTO ,  Hiroyuki FURUYA ,  Yuta MORIURA ,  Susumu URAGAMI

IPC: G01L1/14

Abstract: A load sensor includes: an element part in which capacitance changes in accordance with a load; a copper wire drawn from the element part in order to detect change in the capacitance; and a fixation tool configured to fix the copper wire to the element part. The element part includes an electrically-conductive elastic body that is electrically conductive and that forms one pole for the capacitance, and the fixation tool presses and fixes the copper wire to a surface of the electrically-conductive elastic body so as to be movable with respect to the surface of the electrically-conductive elastic body in accordance with elastic deformation of the electrically-conductive elastic body.

公开(公告)号：US20210318186A1

公开(公告)日：2021-10-14

申请号：US17043500

申请日：2019-01-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hironobu UKITSU ,  Yuta MORIURA ,  Hiroyuki FURUYA ,  Takashi MATSUMOTO ,  Yui SAWADA

IPC: G01L1/14

Abstract: A capacitance detection device includes a sensor unit including at least one sensor element whose capacitance changes, a control line applying to the sensor element a predetermined charging voltage for detecting the capacitance of the sensor element, a shield line electrically shielding the control line, a control circuit supplying the charging voltage to the sensor element via the control line, measuring a voltage change of the sensor element when the charging voltage is applied to the sensor element, and detecting the capacitance of the sensor element based on the voltage change, and an equipotential circuit setting a potential of the shield line equal to a potential of the control line.

公开(公告)号：US20210018379A1

公开(公告)日：2021-01-21

申请号：US17043622

申请日：2019-01-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hironobu UKITSU ,  Yuta MORIURA ,  Hiroyuki FURUYA ,  Takashi MATSUMOTO ,  Yui SAWADA

IPC: G01L1/14 ,  G01D5/24 ,  G01R27/26

Abstract: A capacitance detection device includes: a sensor unit including a plurality of sensor elements; row control lines; column control lines; a control circuit supplying a charging voltage to the sensor element; and an equipotential circuit outputting a potential equal to the potential of the sensor element subject to measurement. The control circuit applies a charging voltage to the row control line connected to the sensor element and connects the column control line connected to the sensor element to the ground potential side. The control circuit causes the equipotential circuit to set a potential of at least one of the row control lines other than the row control line connected to the sensor element subject to measurement and the column control lines other than the column control line connected to the sensor element subject to measurement to a potential equal to the potential of the sensor element subject to measurement.

公开(公告)号：US20250012644A1

公开(公告)日：2025-01-09

申请号：US18892611

申请日：2024-09-23

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Shinobu MASUDA ,  Yuta MORIURA ,  Susumu URAGAMI ,  Takashi MATSUMOTO ,  Takafumi HAMANO ,  Hiroyuki FURUYA

IPC: G01L1/14

Abstract: A load sensor includes: a first electrode having, on an identical face, a first protrusion that is electrically conductive and that has elasticity, and a second protrusion having a higher elastic modulus than the first protrusion; a second electrode opposed to the first electrode with the first protrusion and the second protrusion interposed therebetween; and a dielectric body disposed on an opposing face of the second electrode.

公开(公告)号：US20240295448A1

公开(公告)日：2024-09-05

申请号：US18657675

申请日：2024-05-07

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takashi MATSUMOTO ,  Hiroyuki FURUYA ,  Takafumi HAMANO ,  Yuta MORIURA ,  Susumu URAGAMI ,  Yodai MATSUMURA

IPC: G01L1/14

CPC classification number: G01L1/14

Abstract: A load sensor includes: a first base member having a plate shape and having elasticity; a second base member having a plate shape and disposed so as to oppose the first base member; an electrically-conductive elastic body formed on an opposing face of the first base member; an electrically-conductive member having a linear shape and disposed between the first base member and the second base member; a dielectric body formed on an outer periphery of the electrically-conductive member; and an electric conductor formed on the second base member, along the electrically-conductive member.

公开(公告)号：US20240142320A1

公开(公告)日：2024-05-02

申请号：US18410843

申请日：2024-01-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hironobu UKITSU ,  Yuta MORIURA ,  Susumu URAGAMI ,  Takashi MATSUMOTO

IPC: G01L1/14

CPC classification number: G01L1/144 ,  G01L1/146

Abstract: A load detection system includes: a first load sensor including a first element part in which capacitance changes in accordance with a load; a first detection circuit configured to perform charging and discharging of the first element part and acquire a voltage according to the capacitance at a detection timing in a charge period; a second load sensor including a second element part in which capacitance changes in accordance with a load; a second detection circuit configured to perform charging and discharging of the second element part and acquire a voltage according to the capacitance at a detection timing in a charge period; and a synchronization generation part configured to synchronize the charging of the first element part and the charging of the second element part.

公开(公告)号：US20230392997A1

公开(公告)日：2023-12-07

申请号：US18236745

申请日：2023-08-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuta MORIURA ,  Susumu URAGAMI ,  Takashi MATSUMOTO ,  Yodai MATSUMURA ,  Hiroyki FURUYA ,  Yui AIHARA

IPC: G01L1/14

CPC classification number: G01L1/14

Abstract: A load sensor includes: a first base member and a second base member disposed so as to face each other; an electrically-conductive elastic body disposed on an opposing face of the first base member; an electrically-conductive member having a linear shape and disposed between the second base member and the electrically-conductive elastic body; and a dielectric body disposed between the electrically-conductive elastic body and the electrically-conductive member. The electrically-conductive member has a bent shape that is bent in a direction toward the electrically-conductive elastic body.

公开(公告)号：US20230258512A1

公开(公告)日：2023-08-17

申请号：US18304119

申请日：2023-04-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuta MORIURA ,  Susumu URAGAMI ,  Takashi MATSUMOTO ,  Yodai MATSUMURA ,  Hiroyuki FURUYA ,  Hitoshi ISHIMOTO

IPC: G01L1/14

CPC classification number: G01L1/142

Abstract: A load sensor includes: a first base member and a second base member disposed so as to face each other; an electrically-conductive elastic body disposed on an opposing face of the first base member; a wire member that is electrically conductive and disposed between the second base member and the electrically-conductive elastic body; and a dielectric body disposed between the electrically-conductive elastic body and the wire member. The dielectric body has a stress relaxation part for releasing stress applied to the dielectric body during load application.