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    ROTATION DRIVE MECHANISM
    2.
    发明公开
    ROTATION DRIVE MECHANISM 审中-公开

    公开(公告)号：US20230198427A1

    公开(公告)日：2023-06-22

    申请号：US17997738

    申请日：2021-03-24

    申请人： Seiki CHIBA ,  Mikio WAKI ,  ZEON CORPORATION

    发明人： Seiki CHIBA ,  Mikio WAKI ,  Mitsugu UEJIMA ,  Makoto TAKESHITA

    IPC分类号： H02N2/04 ,  H02N2/00

    CPC分类号： H02N2/046 ,  H02N2/006

    摘要： A rotary drive mechanism comprises: a camshaft having a plurality of cams; and a plurality of transducer units each including a plurality of transducers that each have a dielectric elastomer layer and a pair of electrode layers sandwiching the dielectric elastomer layer. The plurality of transducer units each provide a drive force to a corresponding one of the plurality of cams. The plurality of transducers in one of the transducer units are arranged radially around the corresponding cam. Such a configuration can exert a drive force more efficiently.

    Method for manufacturing dielectric elastomer transducer
    3.
    发明授权
    Method for manufacturing dielectric elastomer transducer 有权

    公开(公告)号：US11283374B2

    公开(公告)日：2022-03-22

    申请号：US16963829

    申请日：2019-01-11

    申请人： Seiki Chiba ,  Mikio Waki ,  ZEON CORPORATION

    发明人： Seiki Chiba ,  Mikio Waki ,  Masakatsu Hotta ,  Kazuhiro Oishi

    IPC分类号： H02N11/00 ,  H01L41/193

    摘要： A method is provided for manufacturing a dielectric elastomer transducer including a dielectric elastomer layer and electrode layers sandwiching the elastomer layer. The elastomer layer when stretched exhibits a stress-strain curve having: a low strain and high elasticity region; a low elasticity region; and a high strain region. The method includes: a pre-stretching process to reduce hysteresis in elastic behavior of the elastomer layer by stretching the elastomer layer one or more times under a load as heavy as a first load before the electrodes are provided, each stretching causing the elastomer layer to undergo a tension falling in the low elasticity region; and a dielectric elastomer layer fixing process including applying a second load smaller than the first load to the elastomer layer so as to fix the elastomer layer to a support member under a second tension smaller than the first tension.

    DIELECTRIC ELASTOMER POWER GENERATION SYSTEM
    5.
    发明申请
    DIELECTRIC ELASTOMER POWER GENERATION SYSTEM 有权

    公开(公告)号：US20210297013A1

    公开(公告)日：2021-09-23

    申请号：US17264845

    申请日：2019-07-10

    申请人： Seiki CHIBA ,  Mikio WAKI ,  ZEON CORPORATION

    发明人： Seiki CHIBA ,  Mikio WAKI ,  Makoto TAKESHITA ,  Mitsugu UEJIMA

    IPC分类号： H02N2/18 ,  H01L41/113

    摘要： A dielectric elastomer power generation system A1 includes a dielectric elastomer power generation element 3 having a dielectric elastomer layer 31 and a pair of electrode layers 32 sandwiching the dielectric elastomer layer 31. The dielectric elastomer power generation system A1 further includes a piezoelectric element 1 and a multi-stage voltage multiplier/rectifier circuit 2 that boosts and rectifies the voltage generated by the piezoelectric element 1 and applies the resulting voltage as an initial voltage to the dielectric elastomer power generation element 3. This configuration enables the system to be constructed at a lower cost and increase the amount of power generation.

    DIELECTRIC ELASTOMER DRIVE SENSOR SYSTEM AND SHEET
    6.
    发明申请
    DIELECTRIC ELASTOMER DRIVE SENSOR SYSTEM AND SHEET 有权

    公开(公告)号：US20210022510A1

    公开(公告)日：2021-01-28

    申请号：US16766288

    申请日：2018-11-26

    申请人： Mikio WAKI ,  Seiki CHIBA ,  ZEON CORPORATION

    发明人： Seiki CHIBA ,  Mikio WAKI ,  Hironobu KONDO ,  Masahiro ISHIKAWA ,  Keiji OSUGI

    IPC分类号： A47C7/62 ,  B60N2/90 ,  H02N11/00

    摘要： 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.

    Dielectric elastomer transducer
    9.
    发明授权
    Dielectric elastomer transducer 有权

    公开(公告)号：US11904358B2

    公开(公告)日：2024-02-20

    申请号：US17596762

    申请日：2020-06-17

    申请人： Seiki Chiba ,  Mikio Waki ,  ZEON CORPORATION

    发明人： Seiki Chiba ,  Mikio Waki ,  Mitsugu Uejima ,  Makoto Takeshita

    IPC分类号： B06B1/02

    CPC分类号： B06B1/0292

    摘要： 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.