公开(公告)号：US12035632B2

公开(公告)日：2024-07-09

申请号：US16981476

申请日：2019-03-18

Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

Inventor： Jibran Khaliq ,  Sybrand Van Der Zwaag ,  Wilhelm Albert Groen ,  Jesus Alfonso Caraveo-Frescas

IPC: H10N30/85 ,  H10N30/092 ,  H10N30/098 ,  H10N30/857

CPC classification number: H10N30/852 ,  H10N30/092 ,  H10N30/098 ,  H10N30/857

Abstract: The disclosure concerns filled a polymer composite comprising a piezoelectric filler and a polymer resin. The composite may exhibit a piezoelectric coefficient d33 of greater than 30 pC/N when measured according to the Berlincourt Method using a d33 piezometer and a density of less than 5 g/cc according to the Archimedes method.

公开(公告)号：US20230422627A1

公开(公告)日：2023-12-28

申请号：US18464745

申请日：2023-09-11

Applicant: Kureha Corporation

Inventor： Yusuke SATO ,  Hisaaki TERASHIMA ,  Nobufumi SATO ,  Kazuyuki KANNO ,  Keiko AITA

IPC: H10N30/857 ,  C08J5/18 ,  B29C71/02 ,  H10N30/098

CPC classification number: H10N30/857 ,  C08J5/18 ,  C08J2327/16 ,  H10N30/098 ,  C08J7/08

Abstract: To provide a piezoelectric body film that can suppress decrease in the piezoelectric constant d31, a method of producing a piezoelectric body film, and a piezoelectric body device. A piezoelectric body film comprising a fluororesin as a piezoelectric material, the fluororesin containing, as a main constituent unit, a repeating unit derived from vinylidene fluoride, a piezoelectric constant d31 of the piezoelectric body film being 20 pC/N or greater, and an extrapolated onset temperature at start of shrinkage determined by TMA measurement being not lower than 90° C. and not higher than 115° C. The difference between piezoelectric constants d31 measured before and after heating the piezoelectric body film at 100° C. for 24 hours relative to the piezoelectric constant d31 before the heating for 24 hours is 20% or less.

公开(公告)号：US20230371388A1

公开(公告)日：2023-11-16

申请号：US18360894

申请日：2023-07-28

Applicant: Taiwan Semiconductor Manufacturing Company Limited

Inventor： Yen-Chieh HUANG ,  Hai-Ching CHEN

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

CPC classification number: H10N30/302 ,  H01L29/41733 ,  H01L29/78696 ,  H10N30/50 ,  H10N30/071 ,  H10N30/098 ,  H10N30/871 ,  G01L1/16

Abstract: 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.

公开(公告)号：US11778914B2

公开(公告)日：2023-10-03

申请号：US17237176

申请日：2021-04-22

Applicant: Taiwan Semiconductor Manufacturing Company Limited

Inventor： Rainer Yen-Chieh Huang ,  Hai-Ching Chen

IPC: H10N30/30 ,  H01L29/417 ,  H10N30/071 ,  H10N30/87 ,  H01L29/786 ,  H10N30/50 ,  H10N30/098 ,  G01L1/16

CPC classification number: H10N30/302 ,  H01L29/41733 ,  H01L29/78696 ,  H10N30/071 ,  H10N30/098 ,  H10N30/50 ,  H10N30/871 ,  G01L1/16

Abstract: A thin-film transistor may include an amorphous semiconductor channel layer, an organic material piezoelectric stress gate layer formed adjacent to the amorphous semiconductor channel layer, a source electrode coupled to the organic material piezoelectric stress gate layer, a drain electrode coupled to the organic material piezoelectric stress gate layer and a gate electrode coupled to the organic material piezoelectric stress gate layer. In some embodiments, the amorphous semiconductor channel layer may be amorphous indium gallium zinc oxide. In some embodiments, the organic material piezoelectric stress gate layer may be organic polyvinylidene fluoride. In some embodiments, the amorphous semiconductor channel layer may be formed on a flexible substrate.

公开(公告)号：US20230155523A1

公开(公告)日：2023-05-18

申请号：US18096497

申请日：2023-01-12

Applicant: Inviza LLC

Inventor： Robert G. Andosca ,  Todd Richard Christenson ,  Marcus Taylor

IPC: H02N2/18 ,  A43B13/28 ,  H10N30/093 ,  H10N30/098 ,  H10N30/80 ,  H10N30/853 ,  H10N30/857 ,  H10N30/00

CPC classification number: H02N2/188 ,  A43B13/28 ,  H02N2/181 ,  H10N30/093 ,  H10N30/098 ,  H10N30/802 ,  H10N30/853 ,  H10N30/857 ,  H10N30/1071 ,  H10N30/8554 ,  G08B6/00

Abstract: Aspects of the present disclosure describe systems, methods, and structures that scavenge mechanical energy to provide electrical energy to a wearable, where the mechanical energy is scavenged by a bending-strain-based transducer that includes a non-resonant energy harvester. By employing a non-resonant energy harvester that operates in bending mode, more electrical energy can be generated that possible with prior-art energy harvesters. In some embodiments, the output of a bending-strain-based transducer element is used for both energy scavenging and as a sensor signal indicative of a user parameter, such as a step, respiration rate, heart rate, weight and the like. In some embodiments, a transducer element includes a plurality of piezoelectric layers that are electrically connected in parallel to increase the energy and/or power provided by the transducer element.

公开(公告)号：US20240365672A1

公开(公告)日：2024-10-31

申请号：US18428711

申请日：2024-01-31

Applicant: Elastimed Ltd.

Inventor： Omer Zelka

IPC: H10N30/88 ,  B29C55/02 ,  B29C65/00 ,  B29C65/48 ,  B29L31/34 ,  B32B7/12 ,  B32B27/08 ,  B32B37/12 ,  B32B37/18 ,  B32B38/00 ,  H10N30/06 ,  H10N30/098 ,  H10N30/80 ,  H10N30/857 ,  H10N30/87

CPC classification number: H10N30/886 ,  B29C55/02 ,  B29C65/48 ,  B29C66/022 ,  B29C66/45 ,  B32B7/12 ,  B32B27/08 ,  B32B37/12 ,  B32B37/182 ,  B32B38/0012 ,  H10N30/06 ,  H10N30/098 ,  H10N30/802 ,  H10N30/857 ,  H10N30/87 ,  B29K2995/0005 ,  B29K2995/0046 ,  B29L2031/3406 ,  B32B2038/0028 ,  B32B2255/10 ,  B32B2255/20 ,  B32B2255/205 ,  B32B2255/26 ,  B32B2307/202 ,  B32B2307/51 ,  B32B2457/00

Abstract: A structure including an electro-active-polymer (“EAP”). The structure can take the form of a strap, which includes two or more EAP film layers. The structure can further include one or more holders or end-grabbing portions. Methods of making and using the EAP structure are also envisioned.

公开(公告)号：US20240305223A1

公开(公告)日：2024-09-12

申请号：US18664382

申请日：2024-05-15

Applicant: Morgan State University

Inventor： Birol Ozturk ,  Peker Milas

IPC: H02N2/00 ,  H02N2/18 ,  H10N30/057 ,  H10N30/077 ,  H10N30/098 ,  H10N30/30 ,  H10N30/50 ,  H10N30/857 ,  H10N30/87

CPC classification number: H02N2/22 ,  H02N2/18 ,  H10N30/057 ,  H10N30/077 ,  H10N30/098 ,  H10N30/30 ,  H10N30/50 ,  H10N30/857 ,  H10N30/877 ,  H10N30/878 ,  Y10T29/42

Abstract: A compact system for optimizing energy harvesting efficiency using of very thin (less than 10 μm thickness) PVDF films. The system is comprised of a flexible substrate such as polypropylene (PP) or Polydimethylsiloxane (PDMS) that supports PVDF thin films sandwiched between two aluminum electrode sheets. The PVDF films may be fabricated at different selected thicknesses by increasing spin rates. The PVDF films may also be fabricated in various different stacking arrangements in order to further allow the electrode to more efficiently produce energy.

公开(公告)号：US12004429B2

公开(公告)日：2024-06-04

申请号：US18464745

申请日：2023-09-11

Applicant: Kureha Corporation

Inventor： Yusuke Sato ,  Hisaaki Terashima ,  Nobufumi Sato ,  Kazuyuki Kanno ,  Keiko Aita

IPC: H10N30/098 ,  B29C71/02 ,  C08J5/18 ,  H10N30/857

CPC classification number: H10N30/857 ,  C08J5/18 ,  C08J7/08 ,  H10N30/098 ,  C08J2327/16

Abstract: To provide a piezoelectric body film that can suppress decrease in the piezoelectric constant d31, a method of producing a piezoelectric body film, and a piezoelectric body device. A piezoelectric body film comprising a fluororesin as a piezoelectric material, the fluororesin containing, as a main constituent unit, a repeating unit derived from vinylidene fluoride, a piezoelectric constant d31 of the piezoelectric body film being 20 pC/N or greater, and an extrapolated onset temperature at start of shrinkage determined by TMA measurement being not lower than 90° C. and not higher than 115° C. The difference between piezoelectric constants d31 measured before and after heating the piezoelectric body film at 100° C. for 24 hours relative to the piezoelectric constant d31 before the heating for 24 hours is 20% or less.

公开(公告)号：US11963454B2

公开(公告)日：2024-04-16

申请号：US16969605

申请日：2018-10-19

Applicant: Kureha Corporation

Inventor： Yusuke Sato ,  Hisaaki Terashima ,  Nobufumi Sato ,  Kazuyuki Kanno ,  Keiko Aita

IPC: H10N30/098 ,  B29C71/02 ,  C08J5/18 ,  H10N30/857

CPC classification number: H10N30/857 ,  C08J5/18 ,  C08J7/08 ,  H10N30/098 ,  C08J2327/16

Abstract: To provide a piezoelectric body film that can suppress decrease in the piezoelectric constant d31, a method of producing a piezoelectric body film, and a piezoelectric body device. A piezoelectric body film comprising a fluororesin as a piezoelectric material, the fluororesin containing, as a main constituent unit, a repeating unit derived from vinylidene fluoride, a piezoelectric constant d31 of the piezoelectric body film being 20 pC/N or greater, and an extrapolated onset temperature at start of shrinkage determined by TMA measurement being not lower than 90° C. and not higher than 115° C. The difference between piezoelectric constants d31 measured before and after heating the piezoelectric body film at 100° C. for 24 hours relative to the piezoelectric constant d31 before the heating for 24 hours is 20% or less.

公开(公告)号：US20240110054A1

公开(公告)日：2024-04-04

申请号：US18267757

申请日：2021-12-15

Applicant: ARKEMA FRANCE

Inventor： Fabrice DOMINGUES DOS SANTOS ,  Thibaut SOULESTIN ,  Gilles FRANCOIS ,  Pierre GERARD

IPC: C08L33/12 ,  B06B1/06 ,  H10N30/00 ,  H10N30/098 ,  H10N30/857

CPC classification number: C08L33/12 ,  B06B1/0688 ,  H10N30/098 ,  H10N30/1061 ,  H10N30/857 ,  C08L2203/20

Abstract: A composite article including at least one electronic system, integrated onto the surface or in the volume of a thermoplastic matrix. The electronic system includes at least one piezoelectric transducer and means for transmitting an electrical signal. The piezoelectric transducer includes a piezoelectric polymer essentially consisting of, or consisting of, repeating units derived from vinylidene fluoride (VDF) and vinylidene trifluoride (TrFE), the molar proportion of the unit derived from TrFE being from 15% to 50% relative to the total number of moles of the units derived from VDF and TrFE. Also, the use of the electronic system and to the use of the article.