公开(公告)号：US20220397466A1

公开(公告)日：2022-12-15

申请号：US17838599

申请日：2022-06-13

Applicant: Futaba Corporation

Inventor： Satoshi IDE ,  Yuhi TAGUCHI

IPC: G01L1/14

Abstract: There is provided a capacitive pressure sensor comprising: a dielectric layer; a first electrode disposed on a first surface of the dielectric layer and to which a pressure is applied; a second electrode disposed on a second surface of the dielectric layer opposite to the first surface and including a plurality of unit electrodes having a predetermined shape; and a measuring device configured to detect a measurement value of a capacitance of the dielectric layer for each unit electrode by causing a potential difference between the first electrode and the second electrode. An electrode area of the unit electrode is determined using an actual measurement data indicating a relationship between a change amount of the measurement value detected for each unit electrode by the measuring device when a pressure is applied to the first electrode and the electrode area of the unit electrode and using a minimum value of the change amount of the measurement value determined by conditions including the number of detection steps of a pressure detected for each unit electrode by the measuring device.

公开(公告)号：US20210041989A1

公开(公告)日：2021-02-11

申请号：US16984869

申请日：2020-08-04

Applicant: Futaba Corporation

Inventor： Tsubasa MITSUHASHI ,  Toshimitsu FUYUKI ,  Yuichi TABATA ,  Yuhi TAGUCHI

IPC: G06F3/044 ,  G06F3/047

Abstract: A touch panel device includes: a plurality of detection regions arranged in a matrix form; and a transmission wiring element and a receiving wiring element formed for each detection region, wherein a transmission wiring arrangement region with the transmission wiring element, the plurality of detection regions, and a receiving wiring arrangement region with the receiving wiring element are formed being aligned in one direction, wherein a value calculated from a formula as follows is smaller than a target value for a coordinate position precision: AW+2*BW−TC, wherein BW is an interval width from one of the detection regions to a next of the detection regions via the receiving wiring arrangement region and the transmission wiring arrangement region in the one direction, AW is a width for the detection regions in the one direction, and TC is a touch diameter.

公开(公告)号：US20220397467A1

公开(公告)日：2022-12-15

申请号：US17839537

申请日：2022-06-14

Applicant: FUTABA CORPORATION

Inventor： Satoshi IDE ,  Yuhi TAGUCHI

IPC: G01L1/14 ,  G06F3/044

Abstract: A capacitive pressure sensor is provided. The capacitive pressure sensor comprises a dielectric layer, a light-transmitting first electrode, a second electrode, a display layer and a measuring device. The dielectric layer is made of a foam. The first electrode is disposed on a first surface of the dielectric layer, wherein a pressure is applied to the first electrode. The second electrode is disposed on a second surface of the dielectric layer opposite to the first surface. The second electrode includes a plurality of unit electrodes having a predetermined shape. The display layer is disposed between the first electrode and the dielectric layer or between the second electrode and the dielectric layer. The measuring device is configured to detect a measurement value of a capacitance of the dielectric layer for each unit electrode by causing a potential difference between the first electrode and the second electrode.