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公开(公告)号：US20240389875A1
公开(公告)日：2024-11-28
申请号：US18797078
申请日：2024-08-07
Inventor： Mavis D. Boamah , Franz M. Geiger , Thomas F. Miller, III , Jeongmin Kim
Abstract: Energy harvesting devices and methods for converting the mechanical energy of a flowing ionic solution, such as rainwater or seawater, into electric energy are provided. The energy harvesting devices include an electric current generating device that includes a metal layer and an amphoteric metal oxide film disposed over a surface of the metal layer. By moving an electric double layer across the surface of the amphoteric metal oxide film, an electric current is generated in the metal layer.
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公开(公告)号：US20240097581A1
公开(公告)日：2024-03-21
申请号：US17766930
申请日：2020-10-09
Applicant: Saginomiya Seisakusho, Inc.
Inventor： Hisayuki Ashizawa , Noriko Shimomura
IPC: H02N1/08
CPC classification number: H02N1/08
Abstract: This MEMS element comprising: a base; a movable portion; and an elastic portion, and a fixing portion; and a fixed portion body to which the elastic portion is fixed, wherein the elastic portion extends in a direction intersecting a moving direction of the movable portion, includes a central portion receiving a force of the movable portion, and one end and another end fixed to the fixed portion body, and includes thin portions respectively between the central portion and the one end and between the central portion and the other end, the thin portions being thinner than the central portion, the one end, and the other end.
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公开(公告)号：US11848627B2
公开(公告)日：2023-12-19
申请号：US17423051
申请日：2020-01-14
Applicant: Saginomiya Seisakusho, Inc.
Inventor： Hisayuki Ashizawa
CPC classification number: H02N1/08 , B81B2203/019
Abstract: This MEMS beam structure that elastically supports a movable section displaced in a first direction includes: a first beam section and a second beam section extending in a second direction orthogonal to the first direction; and a linking section that connects the tip of the first beam section and the tip of the second beam section that is connected to the movable section, wherein the first beam section and the second beam section each have a shape as a beam of uniform strength, and the beam section root of the second beam section is displaced relatively in the first direction with respect to the beam section root of the first beam section according to the displacement of the movable section in the first direction.
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公开(公告)号：US11848625B2
公开(公告)日：2023-12-19
申请号：US17619328
申请日：2020-06-17
Applicant: STRAWB Inc.
Inventor： Keiji Saneyoshi , Kazuo Okuda
Abstract: The present invention is directed to providing an electrostatic actuator that can generate a large electrostatic force even if composed of a ribbon-shaped electrode film.
In an electrostatic actuator 10, 20 including a ribbon-shaped first electrode film 11 and a ribbon-shaped second electrode film 12, a plurality of first electrodes 1 formed of the first electrode film 11 and a plurality of second electrodes 2 formed of the second electrode film 12 are folded and laminated between one end 13 and the other end 14 of the electrostatic actuator 10, 20, and the plurality of first electrodes 1 include a pair of end electrodes 1a that are adjacent to each other in a direction in which the first electrode film 11 extends in a ribbon shape and are respectively positioned at the one end 13 and the other end 14 when laminated and at least one intermediate electrode 1b that is positioned between the end electrodes 1a when laminated.-
公开(公告)号：US11737366B2
公开(公告)日：2023-08-22
申请号：US15903204
申请日：2018-02-23
Applicant: Rogers Corporation
Inventor： Karl E. Sprentall , Trevor Polidore , Robert Mone , Michael Lunt , William Kwan
IPC: H01L41/113 , H10N30/30 , G01L1/14 , H02N1/04 , G01L1/16 , G01L5/00 , H02N1/08 , H10N30/50 , H10N30/057 , H10N30/071 , H10N30/079 , H10N30/857
CPC classification number: H10N30/302 , G01L1/14 , G01L1/142 , G01L1/16 , G01L5/0052 , H02N1/04 , H02N1/08 , H10N30/057 , H10N30/071 , H10N30/079 , H10N30/50 , H10N30/857
Abstract: A sensor apparatus includes a first of a plurality of layers having a top layer, a bottom layer, and at least one intermediate layer having an electrical conductor layer, each of the top layer, the bottom layer, and the at least one intermediate layer is disposed in direct contact with a respective adjacent layer. A second of the plurality of layers is disposed in direct contact with the first plurality of layers such that the bottom layer of the second plurality of layers is disposed in direct contact with the top layer of the first plurality of layers. The first and second plurality of layers are productive of a piezoelectric voltage absent of an external current producing device and in response to being deformed, and are productive of a change in capacitance in response to being deformed.
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Patent Agency Ranking
公开(公告)号：US20230098623A1
公开(公告)日：2023-03-30
申请号：US18070291
申请日：2022-11-28
Applicant: The University of Tokyo , Saginomiya Seisakusho, Inc.
Inventor： Hiroshi TOSHIYOSHI , Hiroyuki FUJITA , Hisayuki ASHIZAWA , Hiroyuki MITSUYA , Kazunori ISHIBASHI
Abstract: A vibrational energy harvester element includes: a first electrode; a second electrode that moves in a predetermined direction with respect to the first electrode; a third electrode; a fourth electrode that moves in the predetermined direction with respect to the third electrode; and a support portion that supports the second electrode and the fourth electrode so that they are movable along the predetermined direction; and wherein: the first electrode and the third electrode are disposed along the predetermined direction; at least one of facing surfaces of the first electrode and the second electrode, and at least one of facing surfaces of the third electrode and the fourth electrode, are electrically charged; and the support portion supports the second electrode and the fourth electrode in a state in which electrostatic force between the first electrode and the second electrode, and electrostatic force between the third electrode and the fourth electrode are balanced along the predetermined direction.
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公开(公告)号：US20230019077A1
公开(公告)日：2023-01-19
申请号：US17642742
申请日：2021-04-07
Applicant: RF MATE CO., LTD.
Inventor： Sang-ki WOO
Abstract: A mask has to possess sufficient electrostatic charges in order to maintain a filtering effect of the mask using static electricity. However, an electrostatic property naturally decreases as an amount of the electrostatic charges decreases when contacting a human body or exposed to the air. Resultantly, as an initial electrostatic filtering effect gradually decreases, an initially intended function of the mask is not implemented.
The present invention relates to a static electricity recharging device for a mask, which allows the mask to be reused by recharging reduced or removed electrostatic charges in the mask.-
公开(公告)号：US11418132B2
公开(公告)日：2022-08-16
申请号：US16675028
申请日：2019-11-05
Applicant: Manoj Gulati , Shwetak N. Patel
Inventor： Manoj Gulati , Shwetak N. Patel
IPC: H02N1/08 , G01R19/145
Abstract: The various embodiments herein provide an energy harvester which can capacitively harvest stray electric field from low-voltage AC power lines without a physical grounding connection. The energy harvester comprises an inner electrode, an outer electrode and a circuit. The inner electrode forms an inner periphery of an upper portion of a harvester housing. The outer electrode forms an inner base of a lower portion of the harvester housing to provide a local ground reference. The circuit is housed within the lower portion of the harvester housing to direct stored energy and control an energy discharge.
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公开(公告)号：US20220224253A1
公开(公告)日：2022-07-14
申请号：US17615153
申请日：2020-03-19
Applicant: The University of Tokyo , Saginomiya Seisakusho, Inc.
Inventor： Hiroshi Toshiyoshi , Hiroaki Honma , Hiroyuki Mitsuya
IPC: H02N1/08
Abstract: This vibration-driven energy harvesting element includes a fixed part, a movable part, an elastic support part that is integrally formed with the movable part and that elastically supports the movable part, and a glass base part in which the fixed part and the elastic support part are anodically bonded to each other in a separated state.
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公开(公告)号：US20220131478A1
公开(公告)日：2022-04-28
申请号：US17423051
申请日：2020-01-14
Applicant: Saginomiya Seisakusho, Inc.
Inventor： Hisayuki Ashizawa
IPC: H02N1/08
Abstract: This MEMS beam structure that elastically supports a movable section displaced in a first direction includes: a first beam section and a second beam section extending in a second direction orthogonal to the first direction; and a linking section that connects the tip of the first beam section and the tip of the second beam section that is connected to the movable section, wherein the first beam section and the second beam section each have a shape as a beam of uniform strength, and the beam section root of the second beam section is displaced relatively in the first direction with respect to the beam section root of the first beam section according to the displacement of the movable section in the first direction.
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