公开(公告)号：US12144261B2

公开(公告)日：2024-11-12

申请号：US17422749

申请日：2020-01-16

Applicant: Seiki Chiba ,  Mikio Waki ,  ZEON CORPORATION

Inventor： Seiki Chiba ,  Mikio Waki ,  Noriyuki Oya ,  Makoto Takeshita ,  Mitsugu Uejima

IPC: H10N30/87 ,  H10N30/20 ,  H10N30/30

Abstract: A dielectric elastomer transducer A1 includes a dielectric elastomer layer 11 and a pair of electrode layers 12 sandwiching the dielectric elastomer layer 11. The electrode layers 12 contain ground carbon particles derived from carbon nanotubes. This configuration ensures both stretchability and electrical conductivity.

公开(公告)号：US12127481B2

公开(公告)日：2024-10-22

申请号：US17287380

申请日：2019-10-28

Applicant: Seiki Chiba ,  Mikio Waki ,  ZEON CORPORATION

Inventor： Seiki Chiba ,  Mikio Waki ,  Syo Kurita

IPC: H01L41/113 ,  H01L41/047 ,  H01L41/45 ,  H10N30/098 ,  H10N30/30 ,  H10N30/87

CPC classification number: H10N30/308 ,  H10N30/098 ,  H10N30/877

Abstract: A dielectric elastomer transducer includes a dielectric elastomer layer, a pair of electrode layers sandwiching the dielectric elastomer layer, and a support that supports the dielectric elastomer layer. The dielectric elastomer layer includes a movable region separated from the support and a fixed region supported by the support. A pair of conduction paths are established that are configured to conduct electricity to the electrode layers via power cables and power supply points at which core wires of the power cables are electrically connected, respectively. The power supply points are separated from the movable region of the dielectric elastomer layer.

公开(公告)号：US11904358B2

公开(公告)日：2024-02-20

申请号：US17596762

申请日：2020-06-17

Applicant: Seiki Chiba ,  Mikio Waki ,  ZEON CORPORATION

Inventor： Seiki Chiba ,  Mikio Waki ,  Mitsugu Uejima ,  Makoto Takeshita

IPC: B06B1/02

CPC classification number: B06B1/0292

Abstract: A dielectric elastomer transducer according to the present invention includes a dielectric elastomer layer, and a pair of electrode layers sandwiching the dielectric elastomer layer. The electrode layers contain a binder and carbon black. The carbon black has a particle size distribution as measured by dynamic light scattering in which not less than 95% falls in a range of 0.15 to 8.0 μm. The carbon black has a particle size as measured by laser scattering ranging from 0.4 to 50 μm. The particle size distribution of the carbon black as measured by dynamic light scattering has a first peak that falls in a first range of 0.15 to 1.0 μm and a second peak that falls in a second range of 1.0 μm to 8.0 μm. This structure achieves both stretchability and electrical conductivity of the electrode layers.

公开(公告)号：US20230253289A1

公开(公告)日：2023-08-10

申请号：US18002861

申请日：2021-05-27

Applicant: Seiki CHIBA ,  Mikio WAKI ,  ZEON CORPORATION

Inventor： Seiki CHIBA ,  Mikio WAKI ,  Mitsugu UEJIMA ,  Makoto TAKESHITA

IPC: H01L23/373 ,  C09K5/14

CPC classification number: H01L23/3733 ,  H01L23/3735 ,  C09K5/14

Abstract: The heat-dissipating material contains ground carbon particles derived from carbon nanotubes. Such a configuration can improve both elasticity and heat conductivity of the heat-dissipating material.

公开(公告)号：US20220085735A1

公开(公告)日：2022-03-17

申请号：US17415729

申请日：2018-12-21

Applicant: Seiki CHIBA ,  Mikio WAKI ,  ZEON CORPORATION

Inventor： Seiki CHIBA ,  Mikio WAKI ,  Mitsuaki ITO ,  Makoto SAWADA

IPC: H02N1/00

Abstract: A dielectric elastomer drive system A1 includes: a dielectric elastomer drive unit 1 provided with a dielectric elastomer layer 11 and a pair of electrode layers 12 flanking the dielectric elastomer layer 11; a power supply unit 5 configured to apply voltage to the dielectric elastomer drive unit 1; and a charge removal unit 2 configured to remove the charge stored in the dielectric elastomer drive unit 1. The configuration contributes to improving responsiveness.

公开(公告)号：US11213133B2

公开(公告)日：2022-01-04

申请号：US16766288

申请日：2018-11-26

Applicant: Seiki Chiba ,  Mikio Waki ,  ZEON CORPORATION

Inventor： Seiki Chiba ,  Mikio Waki ,  Hironobu Kondo ,  Masahiro Ishikawa ,  Keiji Osugi

IPC: A47C7/62 ,  H02N11/00 ,  H01L41/193 ,  B60N2/90

Abstract: A dielectric elastomer driving sensor system includes: a dielectric elastomer transducer portion including a dielectric elastomer layer and a pair of electrode layers that sandwich the dielectric elastomer layer, where the pair of electrode layers include a driving region and a sensor region that are partitioned from each other; a power supply unit that applies a voltage to the driving region; a detection unit that detects a change in capacitance in the sensor region; and a control unit that controls the power supply unit and the detection unit. With this configuration, both the driving function and the sensor function can be performed.

公开(公告)号：US20210384408A1

公开(公告)日：2021-12-09

申请号：US17286890

申请日：2019-10-23

Applicant: Seiki CHIBA ,  Mikio WAKI ,  ZEON CORPORATION

Inventor： Seiki CHIBA ,  Mikio WAKI ,  Mitsugu UEJIMA ,  Makoto TAKESHITA

IPC: H01L41/047 ,  H01L41/193 ,  H01L41/083 ,  H01L41/297

Abstract: A dielectric elastomer transducer A1 includes a plurality of dielectric elastomer elements each including a dielectric elastomer layer 11 and a pair of electrode layers 12 and 13 flanking the dielectric elastomer layer 11. The plurality of dielectric elastomer elements include adjacent dielectric elastomer elements 1. One electrode layer 12 of one of the adjacent dielectric elastomer elements and one electrode layer 12 of the other one of the adjacent dielectric elastomer element have the same potential. Such a configuration ensures more stable use of the dielectric elastomer elements.

公开(公告)号：US11168974B2

公开(公告)日：2021-11-09

申请号：US16488712

申请日：2018-02-23

Applicant: Seiki Chiba ,  Mikio Waki ,  ZEON CORPORATION

Inventor： Seiki Chiba ,  Mikio Waki ,  Mitsuaki Ito ,  Makoto Sawada

IPC: G01L1/14 ,  G01B7/16 ,  G01D5/241

Abstract: A dielectric elastomer sensor system A1 is provided with an oscillation circuit 1 including a dielectric elastomer sensor element 11 having a dielectric elastomer layer 111 and a pair of electrode layers 112 sandwiching the dielectric elastomer layer 111, and with a determination circuit 2 configured to determine a change in a capacitance of the dielectric elastomer sensor element 11, based on an output signal from the oscillation circuit 1. The dielectric elastomer sensor element 11 changes in capacitance due to deformation caused by external forces of at least two mutually different directions. Such a configuration enables provision of a multifunctional dielectric elastomer sensor system and dielectric elastomer sensor element.

公开(公告)号：US20200011649A1

公开(公告)日：2020-01-09

申请号：US16488712

申请日：2018-02-23

Applicant: Seiki CHIBA ,  Mikio WAKI ,  ZEON CORPORATION

Inventor： Seiki CHIBA ,  Mikio WAKI ,  Mitsuaki ITO ,  Makoto SAWADA

IPC: G01B7/16 ,  G01D5/241 ,  G01L1/14

Abstract: A dielectric elastomer sensor system A1 is provided with an oscillation circuit 1 including a dielectric elastomer sensor element 11 having a dielectric elastomer layer 111 and a pair of electrode layers 112 sandwiching the dielectric elastomer layer 111, and with a determination circuit 2 configured to determine a change in a capacitance of the dielectric elastomer sensor element 11, based on an output signal from the oscillation circuit 1. The dielectric elastomer sensor element 11 changes in capacitance due to deformation caused by external forces of at least two mutually different directions. Such a configuration enables provision of a multifunctional dielectric elastomer sensor system and dielectric elastomer sensor element.

公开(公告)号：US10411617B2

公开(公告)日：2019-09-10

申请号：US15405407

申请日：2017-01-13

Applicant: Seiki Chiba ,  Mikio Waki ,  KUREHA ELASTOMER CO., LTD.

Inventor： Seiki Chiba ,  Mikio Waki ,  Yoshinori Tanaka ,  Kuniyoshi Okamoto ,  Kazuya Nagase ,  Naoaki Tsurumi ,  Syo Kurita ,  Makoto Takasugi ,  Nobuhiro Miyagi

IPC: H02N2/04

Abstract: A dielectric elastomer motor includes an artificial muscle and a conversion mechanism cooperating with the artificial muscle. The artificial muscle includes a dielectric elastomer film or layer having a first surface and a second surface opposite to the first surface. First and second electrodes are attached to the first surface and the second surface of the dielectric elastomer film, respectively. First and second bases are attached to the dielectric elastomer so as to be spaced apart from each other. The first base and the second base are capable of reciprocation relative to each other upon change in size of the dielectric elastomer. The conversion mechanism converts the reciprocation of the bases to pivotal or rotational movement. The dielectric elastomer receives voltage application with a predetermined timing via the first and the second electrodes.