公开(公告)号：US20240001269A1

公开(公告)日：2024-01-04

申请号：US18467399

申请日：2023-09-14

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takafumi INOUE ,  Kenichiro TAKUMI ,  Daiji TAMAKURA ,  Masamichi ANDO

IPC: B01D39/08 ,  D02G3/44 ,  H10N30/00

CPC classification number: B01D39/08 ,  D02G3/449 ,  H10N30/1061 ,  D10B2401/13 ,  D10B2401/16

Abstract: An antibacterial mask that includes a filter portion having a first layer and a second layer, wherein the first layer includes a plurality of first piezoelectric yarns that generate at least a first charge by stretching, and the second layer is formed of an ordinary cloth and positioned on a user side of the antibacterial mask.

公开(公告)号：US20170269717A1

公开(公告)日：2017-09-21

申请号：US15452237

申请日：2017-03-07

Applicant: SEIKO EPSON CORPORATION ,  MURATA MANUFACTURING CO., LTD.

Inventor： Daigo YAMANO ,  Shingo WAKIMOTO ,  Takashi KIHARA ,  Masamichi ANDO ,  Hiroaki KITADA ,  Jun ENDO ,  Yoshihiro YAMAGUCHI

IPC: G06F3/038 ,  G06F3/0354

CPC classification number: G06F3/0386 ,  G06F3/033 ,  G06F3/03542 ,  G06F3/03545

Abstract: A pointer includes: a pointer tip having a tip configured to point a position; a transmitter configured to emit a signal from the pointer tip; and a main body connected to the pointer tip. The main body includes: an exterior housing forming an exterior; a detector configured to detect displacement of the exterior housing and output a detection signal; and a controller configured to change an operation state of the pointer in accordance with the detection signal. The detector includes: a detection device provided on an inner surface of the exterior housing and configured to detect the displacement; and a signal outputter configured to output the detection signal in the case where the detection device detects the displacement.

公开(公告)号：US20160238466A1

公开(公告)日：2016-08-18

申请号：US15026050

申请日：2014-09-25

Applicant: MITSUI CHEMICALS, INC. ,  Murata Manufacturing Co., Ltd

Inventor： Kazuhiro TANIMOTO ,  Mitsunobu YOSHIDA ,  Shigeo NISHIKAWA ,  Masamichi ANDO ,  Hidekazu KANO

IPC: G01L1/16 ,  H01L41/113 ,  H01L41/193 ,  G06F3/041

CPC classification number: G01L1/16 ,  G06F3/0414 ,  G06F2203/04105 ,  H01L41/1132 ,  H01L41/193 ,  H01L41/45

Abstract: A pressure-sensing device including a pressed component that has a contact surface to which pressure is applied by contact from a presser; a polymeric piezoelectric element that is disposed at an opposite side from the contact surface of the pressed component and that has a piezoelectric constant d14 of 1 pC/N or more as measured at 25° C. using a stress-charge method; a curable resin layer that includes at least one selected from the group consisting of cold-setting resins, thermosetting resins, and actinic radiation-curable resins and that is in contact with at least part of a surface of the polymeric piezoelectric element; and an electrode that is in contact with at least part of a surface of the polymeric piezoelectric element or of a surface of the curable resin layer.

Abstract translation: 一种压力感测装置，包括：受压部件，其具有通过压接机接触而施加压力的接触面; 设置在与所述被按压部件的接触面相反侧的聚合物压电元件，并且使用应力充电法在25℃下测定的压电常数d14为1pC / N以上。 可固化树脂层，其包含选自冷固树脂，热固性树脂和光化学辐射固化树脂中的至少一种，并且与聚合物压电元件的表面的至少一部分接触; 以及与聚合物压电元件的表面的至少一部分或可固化树脂层的表面接触的电极。

公开(公告)号：US20220373327A1

公开(公告)日：2022-11-24

申请号：US17876013

申请日：2022-07-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masamichi ANDO ,  Kenichi MORI

IPC: G01B17/04

Abstract: An input includes a first electrode and a first deformation portion. An output includes a second electrode and a second deformation portion. A transmission portion enables transmission of an elastic wave from the first deformation portion to the transmission portion and transmission of an elastic wave from the transmission portion to the second deformation portion. In operation, an input signal is input to the first electrode that deforms the first deformation portion to generate an elastic wave. The transmission portion transmits the elastic wave from the first deformation portion to the second deformation portion that is deformed by the elastic wave to generate an output signal to the second electrode. The detection unit detects a deformation amount from the reference state of the transmission portion based on the output signal.

公开(公告)号：US20220365630A1

公开(公告)日：2022-11-17

申请号：US17816551

申请日：2022-08-01

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masamichi ANDO ,  Takashi KIHARA ,  Hidekazu KANO ,  Yuuki TACHIBANA

IPC: G06F3/044 ,  G06F3/041 ,  G01L1/16

Abstract: A pressing sensor is provided that generates an output voltage of a first polarity by deforming with an operation plate when a part of a user's body touches the operation plate, and generates the output voltage of a second polarity by deforming with the operation plate when the part of the user's body is moved away from the operation plate. Moreover, a calculation unit calculates an electrical parameter integral value by time-integrating an electrical parameter that changes with the output voltage generated by the pressing sensor. The electrical parameter has a third polarity when the output voltage has the first polarity and has a fourth polarity when the output voltage has the second polarity. The calculation unit calculates a subtraction electrical parameter integral value obtained by subtracting a predetermined value having the third polarity per unit time from the electrical parameter integral value.

公开(公告)号：US20140065845A1

公开(公告)日：2014-03-06

申请号：US14073609

申请日：2013-11-06

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Masamichi ANDO ,  Shinichi KENZAKI

IPC: H01R13/70

CPC classification number: H01R13/70 ,  H01R24/46

Abstract: A switch-equipped connector that can reduce the occurrence of intermodulation distortion includes a first terminal, a second movable terminal, and a magnet provided at a position distant from the first and second terminals. At least one of the first and the second terminal has a magnetic metal and the second terminal is configured to come into and out of contact with the first terminal.

Abstract translation: 可以减少互调失真发生的具有开关的连接器包括设置在远离第一和第二端子的位置处的第一端子，第二可动端子和磁体。 第一端子和第二端子中的至少一个具有磁性金属，并且第二端子被配置为与第一端子接触和脱离接触。

公开(公告)号：US20240063793A1

公开(公告)日：2024-02-22

申请号：US18487667

申请日：2023-10-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Kenichi MORI ,  Masamichi ANDO

IPC: H03K17/96 ,  H10N30/30 ,  H10N30/857 ,  H10N30/00

CPC classification number: H03K17/9643 ,  H10N30/302 ,  H10N30/857 ,  H10N30/10513

Abstract: A detection device includes a panel having opposed main surfaces including an operation surface and a rear surface. A support structure is located on at least one of the main surfaces and prevents warping of the panel while permitting the operation surface to be deformed in response to a pressing operation applied to the operation surface. A sensor for sensing the pressing operation applied to the operation surface is provided on one of the main surfaces at a location where at least a portion of the sensor does not overlap the support structure in plan view.

公开(公告)号：US20220393097A1

公开(公告)日：2022-12-08

申请号：US17891299

申请日：2022-08-19

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masamichi ANDO ,  Hideki KAWAMURA

IPC: H01L41/113 ,  G01B7/16 ,  G01L1/16 ,  H01L41/193 ,  G01D5/18

Abstract: A displacement sensor having a rectangular shaped elastic member. A piezoelectric element is attached to a first main face of the elastic member. The piezoelectric element has a rectangular-shaped piezoelectric sheet and electrodes on both main faces of the piezoelectric sheet. The piezoelectric sheet is made of poly-L-lactic acid and is at least uniaxially-stretched. The piezoelectric element is attached so that the uniaxial-stretching direction of the piezoelectric sheet is 45° relative to a long-side direction of the elastic member. When the elastic member is bent along the long-side direction, the piezoelectric sheet is stretched along the long-side direction, and the piezoelectric element generates voltage of predetermined level.

公开(公告)号：US20190267538A1

公开(公告)日：2019-08-29

申请号：US16307749

申请日：2017-06-05

Applicant: MITSUI CHEMICALS, INC. ,  MURATA MANUFACTURING CO., LTD.

Inventor： Mitsunobu YOSHIDA ,  Kazuhiro TANIMOTO ,  Katsuki ONISHI ,  Shigeo NISHIKAWA ,  Masamichi ANDO

IPC: H01L41/193 ,  H01L41/08 ,  H01L41/113 ,  D01F6/62

Abstract: The present invention provides: a piezoelectric substrate which includes a first piezoelectric body having an elongated shape and helically wound in one direction, and which does not include a core material, in which the first piezoelectric body includes a helical chiral polymer (A) having an optical activity; in which the length direction of the first piezoelectric body is substantially parallel to the main direction of orientation of the helical chiral polymer (A) included in the first piezoelectric body; and in which the first piezoelectric body has a degree of orientation F, as measured by X-ray diffraction according to the following Equation (a), within the range of 0.5 or more but less than 1.0: degree of orientation F=(180°−α)/180°  (a) (in which α represents the half-value width of the peak derived from the orientation).

公开(公告)号：US20240255282A1

公开(公告)日：2024-08-01

申请号：US18628987

申请日：2024-04-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masamichi ANDO ,  Kenichi MORI

IPC: G01B17/04 ,  G06F1/16

CPC classification number: G01B17/04 ,  G06F1/1616 ,  G06F1/1677

Abstract: An input includes a first electrode and a first deformation portion. An output includes a second electrode and a second deformation portion. A transmission portion enables transmission of an elastic wave from the first deformation portion to the transmission portion and transmission of an elastic wave from the transmission portion to the second deformation portion. In operation, an input signal is input to the first electrode that deforms the first deformation portion to generate an elastic wave. The transmission portion transmits the elastic wave from the first deformation portion to the second deformation portion that is deformed by the elastic wave to generate an output signal to the second electrode. The detection unit detects a deformation amount from the reference state of the transmission portion based on the output signal.