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    Base isolation apparatus, lifting apparatus, and base isolation unit
    2.
    发明授权
    Base isolation apparatus, lifting apparatus, and base isolation unit 有权

    公开(公告)号：US11511967B2

    公开(公告)日：2022-11-29

    申请号：US16341193

    申请日：2017-10-26

    申请人： Mitsubishi Electric Corporation

    发明人： Tomoya Hattori ,  Noboru Kawaguchi

    IPC分类号： B66B7/02 ,  B66B9/00 ,  B66B9/06 ,  E04B1/98 ,  E04H9/02 ,  B66B5/02

    摘要： A structure having limited supportable portions has been difficult to isolate from vibration in the direction in which a load is applied. A base isolation apparatus includes a Z-axis base isolation unit, an X-axis base isolation unit, and a Y-axis base isolation unit. The base isolation unit includes a vibration-source connector, an isolated-object connector, a lock device disposed between the isolated-object connector and the vibration-source connector for switching between a state of fixing the isolated-object connector and a state of making it movable, a distance recovery device for generating a force to cause an amount of change in distance to approach zero, depending on the amount of change, and a vibration damper for generating a force in an orientation of hindering the change, depending on the rate of change in distance.

    Honeycomb sandwich panel, optical device, and artificial satellite
    6.
    发明授权
    Honeycomb sandwich panel, optical device, and artificial satellite 有权

    公开(公告)号：US11506865B2

    公开(公告)日：2022-11-22

    申请号：US17311363

    申请日：2019-12-12

    申请人： Mitsubishi Electric Corporation

    发明人： Tomoya Hattori ,  Noboru Kawaguchi ,  Toshitaka Nakaoji ,  Atsumu Oikawa

    IPC分类号： G02B7/183 ,  B32B3/12 ,  B32B5/02 ,  B32B15/14 ,  B64G1/10 ,  B64G1/66 ,  G02B7/00 ,  G02B7/18

    摘要： A honeycomb sandwich panel having an absolute value of thermal expansion coefficient smaller than an absolute value of thermal expansion coefficient obtained by using carbon fiber reinforced plastic (CFRP) is provided. The honeycomb sandwich panel includes: a first skin being a plate material made of a low expansion metal being a metal having an absolute value of thermal expansion coefficient smaller than an absolute value of thermal expansion coefficient of CFRP; a second skin being a plate material made of the low expansion metal and arranged to face the first skin; and a core made of CFRP or the low expansion metal, being bonded to the first skin and the second skin and including a plurality of tubular cells each having a hexagonal cross section, the tubular cells being formed adjacently to each other.