Electromagnetic field control member
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United States of America Patent
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Jan 21, 2025
Grant Date -
Oct 20, 2022
app pub date -
Aug 28, 2020
filing date -
Aug 29, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is an electromagnetic field control member including a first insulating member that is made of a ceramic having a tubular shape and includes a plurality of through holes extending in an axial direction; a conductive member made of a metal, the conductive member sealing off each of the through holes and leaving an opening portion in the through hole, the opening portion opening to an outer periphery of the first insulating member; a power feed terminal connected to the conductive member; and flanges respectively located at two ends of the first insulating member. A second insulating member made of a ceramic having a tubular shape is disposed on an outer peripheral side of the first insulating member, and includes two ends that are hermetically fixed to the flanges, respectively.
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