公开(公告)号：US20240016061A1

公开(公告)日：2024-01-11

申请号：US18220295

申请日：2023-07-11

申请人： INDUSTRY-ACADEMIC COOPERATION FOUNDATION, DANKOOK UNIVERSITY

发明人： Ji-Hyeon Song ,  Yujun Song

IPC分类号： H10N30/30 ,  H10N30/045 ,  H10N30/072 ,  H10N30/088 ,  G06F3/041

CPC分类号： H10N30/30 ,  H10N30/045 ,  H10N30/072 ,  H10N30/088 ,  G06F3/0414 ,  G06F3/04164

摘要： Disclosed herein are a piezoelectric element, a method of manufacturing the piezoelectric element, a touchpad including the piezoelectric element, and a method of operating the touchpad, wherein the piezoelectric element has a shape of an N-hedron and includes N polygonal unit piezoelectric films forming N faces of the N-hedron, and the touchpad includes: a first piezoelectric element having a shape of an N-hedron; a pad body having a first installation groove detachably supporting the first piezoelectric element; and a signal processer receiving and processing a first signal generated by the first piezoelectric element in response to a first external force, wherein N unit signals are generated by N unit piezoelectric films forming N faces of the first piezoelectric element in response to one external force.

公开(公告)号：US11870372B2

公开(公告)日：2024-01-09

申请号：US17059735

申请日：2019-06-11

申请人： THE JOHNS HOPKINS UNIVERSITY

发明人： James West ,  Ugur Erturun ,  Sung Hoon Kang ,  Adebayo Eisape

IPC分类号： H02N2/18 ,  H02N1/08 ,  H10N30/30 ,  H10N30/85 ,  H10N30/87

CPC分类号： H02N2/186 ,  H02N1/08 ,  H02N2/181 ,  H10N30/30 ,  H10N30/852 ,  H10N30/872

摘要： Disclosed are device implementations for a hybrid energy harvesting device and methods for harvesting mechanical energy from the ambient. The various device implementations utilize a combination of electrostatic energy conversion and piezoelectric energy conversion elements. The method simultaneously converts mechanical energy into electrical charge by electrostatic and piezoelectric energy harvesting. The devices include a piezoelectric harvester including a pair of electrodes and piezoelectric nanocomposite polymer, an electrostatic harvester including an electret film and a pair of electrostatic electrodes.

公开(公告)号：US11870367B2

公开(公告)日：2024-01-09

申请号：US17125206

申请日：2020-12-17

申请人： UNIVERSITY OF MARYLAND, BALTIMORE COUNTY

发明人： Soobum Lee

IPC分类号： H02N2/18 ,  F03G7/08 ,  H10N30/30

CPC分类号： H02N2/186 ,  F03G7/08 ,  H10N30/306

摘要： Energy harvesters (EH) which can effectively harvest wasted vibrational/kinematic energy and convert it into electrical energy for battery-free sensor operation are described herein. The target application of the energy harvesters includes powering wireless sensors used for wind turbine blade structural monitoring.

公开(公告)号：US11867583B2

公开(公告)日：2024-01-09

申请号：US17980506

申请日：2022-11-03

申请人： Honeywell International Inc.

发明人： Manjesh Kumar B ,  Alistair David Bradley ,  Josh M. Fribley ,  Sudheer Beligere Sreeramu ,  Sathish Vadlamudi

IPC分类号： G01L9/00 ,  B81B7/00 ,  H05K1/14 ,  H10N30/30

CPC分类号： G01L9/0055 ,  B81B7/0032 ,  H05K1/141 ,  H10N30/302 ,  B81B2201/0264

摘要： Disclosed are pressure sensors including a die and an application-specific integrated circuit (ASIC) mounted on a top surface of a substrate. The pressure sensor can define an inner volume and a bottom opening configured to abut the substrate. The die and ASIC are mounted on the top surface of the substrate within the inner volume. The substrate defines a first aperture therethrough and the die defines a second aperture therethrough in a direction along an axis perpendicular to the substrate, the first aperture and the second aperture being aligned. Metallic barrier(s) disposed on a bottom surface of the substrate, circumferentially about the first aperture, can be at least partially coated with solder mask to reduce or prevent flow of unwanted materials past the metallic barriers and through the first aperture. The substrate can include electrical connection pads on the bottom surface configured to be in communication with a daughter board.

公开(公告)号：US20230422623A1

公开(公告)日：2023-12-28

申请号：US18335277

申请日：2023-06-15

申请人： QUALCOMM Technologies Inc.

发明人： Robert John LITTRELL

IPC分类号： H10N30/50 ,  H10N30/05 ,  H10N30/076 ,  H10N30/80 ,  H10N30/30 ,  B81B3/00 ,  B81C1/00 ,  C23C14/06 ,  C23C14/14 ,  C23C14/34 ,  C23C14/54 ,  H04R7/06 ,  H04R17/02 ,  H04R31/00

CPC分类号： H10N30/508 ,  H10N30/05 ,  H10N30/50 ,  H10N30/076 ,  H10N30/80 ,  H10N30/306 ,  B81B3/0072 ,  B81C1/00666 ,  C23C14/0641 ,  C23C14/14 ,  C23C14/34 ,  C23C14/542 ,  H04R7/06 ,  H04R17/02 ,  H04R31/003 ,  B81B2201/0257 ,  B81B2203/0118 ,  B81C2201/017

摘要： A transducer includes a first piezoelectric layer; and a second piezoelectric layer that is above the first piezoelectric layer; wherein the second piezoelectric layer is a more compressive layer with an average stress that is less than or more compressive than an average stress of the first piezoelectric layer.

公开(公告)号：US11852654B2

公开(公告)日：2023-12-26

申请号：US16932161

申请日：2020-07-17

申请人： Board of Regents, The University of Texas System

发明人： Seyed Omid Reza Moheimani ,  Mohammad Mahdavi

IPC分类号： G01Q10/04 ,  G01Q20/04 ,  G01Q60/38 ,  H10N30/30 ,  H10N30/87 ,  H10N30/00

CPC分类号： G01Q10/045 ,  G01Q20/04 ,  G01Q60/38 ,  H10N30/1071 ,  H10N30/306 ,  H10N30/872 ,  H10N30/877

摘要： Illustrative embodiments provide an apparatus comprising a substrate comprising a cantilever, a bottom electrode on the substrate, a bottom piezoelectric transducer on the bottom electrode such that the bottom electrode is between the substrate and the bottom piezoelectric transducer, a middle electrode on the bottom piezoelectric transducer such that the bottom piezoelectric transducer is between the bottom electrode and the middle electrode, a top piezoelectric transducer on the middle electrode such that the middle electrode is between the bottom piezoelectric transducer and the top piezoelectric transducer, and a top electrode on the top piezoelectric transducer, such that the top piezoelectric transducer is between the middle electrode and the top electrode. Illustrative embodiments also provide a method of making the apparatus and a method of using the apparatus for atomic force microscopy.

公开(公告)号：US20230397500A1

公开(公告)日：2023-12-07

申请号：US18250474

申请日：2021-10-18

申请人： Kureha Corporation

发明人： Makoto IMAJI ,  Kei YAMAGUCHI ,  Sho HAYAKAWA

IPC分类号： H10N30/88 ,  C08J7/04 ,  C08J7/044 ,  H10N30/30 ,  H10N30/857 ,  H10N30/01

CPC分类号： H10N30/883 ,  C08J7/0427 ,  C08J7/044 ,  H10N30/302 ,  H10N30/857 ,  H10N30/01 ,  C08J2327/16 ,  G06F3/041

摘要： Provided is a piezoelectric film capable of sufficiently exhibiting both piezoelectric properties and transparency. A piezoelectric film including, by stacking: a transparent piezoelectric base film made of a fluororesin; and
a transparent coating layer having a thickness of 0.20 to 2.5 μm, wherein the transparent coating layer forms an interface with the transparent piezoelectric base film over an entire region overlapping the transparent piezoelectric base film.

公开(公告)号：US11832522B2

公开(公告)日：2023-11-28

申请号：US17205062

申请日：2021-03-18

申请人： Murata Manufacturing Co., Ltd.

发明人： Fumiya Kurokawa ,  Shinsuke Ikeuchi ,  Yoichi Mochida ,  Seiji Umezawa ,  Nobuyoshi Adachi ,  Yutaka Kishimoto

IPC分类号： H10N30/20 ,  H10N30/88 ,  H10N30/30 ,  H10N30/853 ,  H10N30/04

CPC分类号： H10N30/2041 ,  H10N30/304 ,  H10N30/8542 ,  H10N30/88 ,  H10N30/04

摘要： A piezoelectric transducer includes beam portions each with a fixed end portion and extending in a direction away from the fixed end portion. A base portion is connected to the fixed end portion of each of the beam portions. The beam portions extends in a same plane, and respective extending directions of at least two beam portions are different from each other. The beam portions each include a single crystal piezoelectric layer having a polarization axis in a same direction, an upper electrode layer, and a lower electrode layer. A polarization axis has a polarization component in the plane. An axial direction of an orthogonal axis that is orthogonal to the polarization axis and extends in the above-described plane intersects with an extending direction of each of the plurality of beam portions.

公开(公告)号：US11831308B2

公开(公告)日：2023-11-28

申请号：US16847308

申请日：2020-04-13

申请人： Murata Manufacturing Co., Ltd.

发明人： Kenichi Mori ,  Masamichi Ando

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

CPC分类号： H03K17/9643 ,  H10N30/10513 ,  H10N30/302 ,  H10N30/857

摘要： 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：US20230371388A1

公开(公告)日：2023-11-16

申请号：US18360894

申请日：2023-07-28

申请人： Taiwan Semiconductor Manufacturing Company Limited

发明人： Yen-Chieh HUANG ,  Hai-Ching CHEN

IPC分类号： H10N30/30 ,  H01L29/417 ,  H01L29/786 ,  H10N30/50 ,  H10N30/071 ,  H10N30/098 ,  H10N30/87

CPC分类号： H10N30/302 ,  H01L29/41733 ,  H01L29/78696 ,  H10N30/50 ,  H10N30/071 ,  H10N30/098 ,  H10N30/871 ,  G01L1/16

摘要： A thin-film transistor includes a flexible substrate, an amorphous semiconductor channel layer on the flexible substrate, an organic material piezoelectric stress gate layer adjacent to the amorphous semiconductor channel layer, a gate electrode adjacent to the organic material piezoelectric stress gate layer, and a source electrode and drain electrode coupled to the organic material piezoelectric stress gate layer.