公开(公告)号：US11856860B1

公开(公告)日：2023-12-26

申请号：US16775619

申请日：2020-01-29

申请人： META PLATFORMS TECHNOLOGIES, LLC

发明人： Spencer Allan Wells ,  Kenneth Diest ,  Wenhao Li ,  Sheng Ye ,  Renate Eva Klementine Landig ,  Andrew John Ouderkirk

IPC分类号： H01B1/22 ,  H10N30/87 ,  H01B13/00 ,  H01B1/24 ,  C09D11/52 ,  H10N30/06 ,  H10N30/857

CPC分类号： H10N30/878 ,  C09D11/52 ,  H01B1/22 ,  H01B1/24 ,  H01B13/0036 ,  H10N30/06 ,  H10N30/857

摘要： A liquid dispersion includes a matrix phase of polymerizable material and at least 10% by volume of solid conductive particles distributed throughout the matrix. The conductive particles may have an average particle size of less than approximately 100 nm, and the liquid dispersion may have a viscosity of less than approximately 100 Poise. Such a liquid dispersion may be printed or extruded and then cured to form a solid thin film. The content and distribution of conductive particles within the thin film may reach a percolation threshold such that the thin film may form a conductive layer. Polymer-based devices, such as nanovoided polymer (NVP)-based actuators may be formed by co-extrusion of a nanovoided polymer material between conductive polymer electrodes.

公开(公告)号：US20230345839A1

公开(公告)日：2023-10-26

申请号：US18137649

申请日：2023-04-21

申请人： Kureha America, Inc.

发明人： Tatsuya Yaguchi ,  Mayu Komatsu

IPC分类号： H10N30/87 ,  H10N30/20 ,  H10N30/00 ,  H10N30/857 ,  B82Y15/00

CPC分类号： H10N30/878 ,  H10N30/206 ,  H10N30/1051 ,  H10N30/857 ,  B82Y15/00 ,  G06F3/04144

摘要： A piezoelectric device includes a piezoelectric film and a carbon-nanotube (CNT)-based electrode layer directly disposed on at least one side of the piezoelectric film. The CNT-based first electrode layer has a sheet resistance of less than 300 ohm/sq.

公开(公告)号：US11785856B2

公开(公告)日：2023-10-10

申请号：US16481023

申请日：2018-01-26

申请人： THE TRUSTEES OF DARTMOUTH COLLEGE

发明人： Zi Chen ,  John X. J. Zhang ,  Lin Dong ,  Zhe Xu

IPC分类号： H10N30/30 ,  A61N1/378 ,  H02N2/18 ,  H10N30/857

CPC分类号： H10N30/306 ,  A61N1/3785 ,  H02N2/186 ,  H10N30/857

摘要： A piezoelectric energy harvester has a layered structure comprising a first electrode, a polymeric piezoelectric material, and a second electrode, the layered structure coupled to receive mechanical stress from the environment, and the first and second electrode electrically coupled to a power converter. The power converter is adapted to charge an energy storage device selected from a capacitor and a battery. The method of harvesting energy from the environment includes providing a piezoelectric device comprising a layer of a polymeric piezoelectric material disposed between a first and a second electrode; coupling mechanical stress derived from an environment to the piezoelectric device; and coupling electrical energy from the piezoelectric device.

公开(公告)号：US20230280857A1

公开(公告)日：2023-09-07

申请号：US18177892

申请日：2023-03-03

申请人： Kureha America, Inc.

发明人： Mayu Komatsu ,  Tatsuya Yaguchi ,  Naomitsu Nishihata

IPC分类号： G06F3/041 ,  H10N30/00 ,  H10N30/30 ,  H10N30/857

CPC分类号： G06F3/04144 ,  H10N30/1051 ,  H10N30/302 ,  H10N30/308 ,  H10N30/857 ,  G06F2203/04107

摘要： A piezoelectric sensing module includes a polyvinylidene fluoride (PVDF) piezoelectric film, a first electrode layer that includes multiple receiver electrodes arranged in a first pattern enabling a sensing of a position of an input object on a touch surface using the PVDF piezoelectric film, and a second electrode layer that includes at least one common electrode. The PVDF piezoelectric film is arranged between the first electrode layer and the second electrode layer, with the second electrode layer between the PVDF piezoelectric film and the touch surface.

公开(公告)号：US11750981B2

公开(公告)日：2023-09-05

申请号：US16595522

申请日：2019-10-08

申请人： Sumitomo Riko Company Limited

发明人： Katsuhiko Nakano ,  Masaki Nasu ,  Koichi Hasegawa ,  Shinya Tahara

IPC分类号： B06B1/02 ,  G01D5/241 ,  B60R21/015 ,  H04R19/00 ,  B62D1/04 ,  B62D1/06 ,  H10N30/857 ,  H10N30/87

CPC分类号： H04R19/00 ,  B60R21/01552 ,  B62D1/046 ,  B62D1/065 ,  H10N30/857 ,  H10N30/877

摘要： Provided is a transducer that can be manufactured without using a volatile adhesive or an organic solvent. A transducer is provided with: a first electrode sheet provided with a plurality of first through-holes; a dielectric layer, of which a first surface is disposed on the first-electrode-sheet side; and a first fusion-bonding layer formed from a fusion-bonding material, the first fusion-bonding layer joining together, by fusion bonding of the fusion-bonding material, a boundary region between a body portion of the dielectric layer and a first inner surface of the first electrode sheet and a boundary region between the body portion of the dielectric layer and a first inner circumferential surface of at least some of the plurality of first through-holes.

公开(公告)号：US11723280B2

公开(公告)日：2023-08-08

申请号：US16490154

申请日：2018-03-01

申请人： MITSUI CHEMICALS, INC. ,  THE SCHOOL CORPORATION KANSAI UNIVERSITY

发明人： Yoshiro Tajitsu ,  Yuzo Nakamura ,  Tomoya Matayoshi ,  Takayuki Watanabe ,  Michio Eriguchi

IPC分类号： H01L41/193 ,  H10N30/857 ,  B06B1/02

CPC分类号： H10N30/857 ,  B06B1/0292

摘要： An electretized film of the present invention includes a cyclic olefin polymer, in which the electretized film is a non-porous film, and a piezoelectric constant d33 in a thickness direction, which is measured by applying a pressing force to the electretized film in the thickness direction, under conditions of a load of 0.5 N, a dynamic load of ±0.25 N, a frequency of 110 Hz, a temperature of 23° C., and a humidity of 50%, is equal to or more than 100 pC/N.

公开(公告)号：US11719926B2

公开(公告)日：2023-08-08

申请号：US17365343

申请日：2021-07-01

申请人： Andrew Simon Filo

发明人： Andrew Simon Filo

IPC分类号： G02B26/02 ,  G01S17/74 ,  H10N30/20 ,  H10N30/857 ,  H10N30/87 ,  H10N39/00 ,  H01L31/053 ,  G09F3/02 ,  G09F3/10 ,  B64G1/10 ,  B64G1/66

CPC分类号： G02B26/02 ,  G01S17/74 ,  G09F3/02 ,  G09F3/10 ,  H01L31/053 ,  H10N30/204 ,  H10N30/857 ,  H10N30/878 ,  H10N39/00 ,  B64G1/1085 ,  B64G1/66 ,  G09F2003/0257

摘要： Provided herein is a modulating retroreflective multilayer film comprising retroreflective elements, a piezoelectric layer, a photovoltaic layer, and an energy storage device. The stacked and transparent layered configuration of the film allows the retroreflective elements and the photovoltaic layer to be simultaneously illuminated by a narrow beam. The low power piezoelectric layer and the energy harvesting of the photovoltaic layer allow the retroreflector to be energetically self-sufficient and suitable for remote deployment. The flexible properties of the component layers allow the retroreflector to be adhered to nonplanar or irregular surfaces for the purpose of labeling and tagging.

公开(公告)号：US11712504B2

公开(公告)日：2023-08-01

申请号：US16495530

申请日：2018-03-20

申请人： Fresenius Medical Care Deutschland GmbH

发明人： Alexander Heide ,  Dejan Nikolic

IPC分类号： A61M1/36 ,  A61M1/14 ,  A61M1/34 ,  G01N27/07 ,  H10N30/30 ,  H10N30/857

CPC分类号： A61M1/367 ,  A61M1/14 ,  A61M1/3413 ,  G01N27/07 ,  A61M2205/0233 ,  A61M2205/0244 ,  A61M2205/0294 ,  A61M2205/12 ,  A61M2205/3317 ,  A61M2205/3334 ,  A61M2207/00 ,  H10N30/302 ,  H10N30/857

摘要： This disclosure relates to a medical device including, a hard part, a converter, and a conductive path. The hard part has fluid paths for guiding a medical fluid, in particular blood, through the hard part. The converter is arranged to measure a characteristic of the medical fluid while the fluid is present in one of the fluid paths. At least a first section of the converter or of the conductive path is applied to or superimposed on the hard part by a first additive application method. At least a second section of the converter or of the conductive path is applied to the hard part by a second application method. The first and the second additive application methods differ from each other.

公开(公告)号：US11680974B2

公开(公告)日：2023-06-20

申请号：US17329172

申请日：2021-05-25

申请人： CREATING NANO TECHNOLOGIES, INC.

发明人： Ji-Yung Lee ,  Andrew Ronaldi Tandio ,  Hung-Chan Chiang ,  Bo-Fan Tsai

IPC分类号： G01R29/22 ,  G01R29/12 ,  H10N30/045 ,  H10N30/857 ,  H10N30/853

CPC分类号： G01R29/22 ,  G01R29/12 ,  H10N30/045 ,  H10N30/857 ,  H10N30/8554

摘要： A method for monitoring polarization quality of a piezoelectric film is described. In this method, a detection step is performed on a piezoelectric film by using a detection device with a non-contact method during a polarization process of the piezoelectric film, to obtain a static electricity information or a transmittance information. A determination step is performed by using the static electricity information or the transmittance information to determine a polarization degree of the piezoelectric film.

公开(公告)号：US12075704B2

公开(公告)日：2024-08-27

申请号：US16358003

申请日：2019-03-19

申请人： SABIC Global Technologies B.V.

发明人： Soma Guhathakurta ,  Anantharaman Dhanabalan ,  Venkata Ramanarayanan Ganapathy Bhotla ,  Anshita Sudarshan

IPC分类号： H10N30/853 ,  C08F220/18 ,  C08F220/28 ,  C08K3/22 ,  C08K5/521 ,  H10N30/857

CPC分类号： H10N30/8536 ,  C08F220/18 ,  C08F220/28 ,  C08K3/22 ,  C08K5/521 ,  H10N30/857 ,  C08F220/1804 ,  C08F220/281 ,  C08F220/285 ,  C08K2003/2206 ,  C08K2003/2237

摘要： Disclosed is a composite comprising: a polymer matrix formed from one or more of a monomer or a precursor polymer; and an in-situ dispersion of a piezoelectric ceramic filler and an ionic additive within the polymer matrix, wherein the composite exhibits a d33 of at least 1 pC/N when measured using a piezoelectric meter. Disclosed also herein are methods of forming the composite.