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.

公开(公告)号：US20240264011A1

公开(公告)日：2024-08-08

申请号：US18641077

申请日：2024-04-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yuta YAMAMOTO ,  Hironobu UKITSU ,  Yuta MORIURA ,  Mitsutaka YAMAGUCHI

IPC: G01L1/14

CPC classification number: G01L1/146

Abstract: A load detecting device includes: a load sensor including an element part; a first detection circuit configured to perform charging of a predetermined voltage and discharging of a charged voltage with respect to one electrode of the element part, and output a voltage of the element part in a charge period; a second detection circuit configured to, in parallel with the charging and discharging, perform discharging from the predetermined voltage and charging of the predetermined voltage with respect to another electrode of the element part, and output a voltage of the element part in a discharge period; and a control circuit configured to detect the capacitance in the element part, based on a differential voltage obtained by adding a voltage obtained by inverting a second detection voltage from the second detection circuit between the predetermined voltage and a ground, to a first detection voltage from the first detection circuit.

公开(公告)号：US20240230431A1

公开(公告)日：2024-07-11

申请号：US18613811

申请日：2024-03-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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

IPC: G01L1/14

CPC classification number: G01L1/142

Abstract: A load sensor includes: a base member; a plurality of electrically-conductive elastic bodies disposed on an upper face of the base member and arranged in a first direction with a predetermined gap therebetween; a plurality of electrically-conductive members each having a linear shape and extending in a second direction, the plurality of electrically-conductive members crossing the plurality of electrically-conductive elastic bodies; and a dielectric body disposed between the electrically-conductive elastic body and the electrically-conductive member.

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：US20230384174A1

公开(公告)日：2023-11-30

申请号：US18233638

申请日：2023-08-14

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Yui AIHARA ,  Susumu URAGAMI ,  Yuta MORIURA

IPC: G01L1/14

CPC classification number: G01L1/142

Abstract: A load sensor includes: an electrode; a dielectric body disposed on a surface of the electrode; and an electrically-conductive elastic body having electrical conductivity and disposed so as to be opposed to the dielectric body. A plurality of projections are formed on a surface on the dielectric body side of the electrically-conductive elastic body, and the thickness of the dielectric body decreases in the plane direction from an initial contact position with respect to the electrically-conductive elastic body.

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.