ELECTRET DEVICE
Provided is a long-life electret device preventing charge degradation of an electret element sealed in a closed space. The provided electret device includes: a package member; a lid member; and an electret element, the lid member seals the package member to thereby form a closed space, the electret...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
07.02.2024
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Subjects | |
Online Access | Get full text |
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