Patent EP0441381A1 successfully refreshed from Google Patents.
EP0441381A1
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EP
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Capacitive occupation detector apparatus
Assignee: Aisin Corp
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Filing: 1991-02-07
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Granted: —
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Expires: 2011-02-07
Abstract
Abstract A capacitive occupation detector apparatus is comprised of a first electrode having an inner space, a second electrode constituting a capacitor by cooperating the first electrode, and a detecting device for detecting the existence of a person based on the change of capacitance between both electrodes.
Inventors
- 👤 Kohji Aoki
- 👤 Teruo Tatsumi
- 👤 Masahiro Kando
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 22:36
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/945; H03K17/955; B; B60; B60N; B60N2/00; B60N2/002; B60N2/0021; B60N2/0035; B60N2/003; B60N2/0034; B60R; B60R21/00; B60R21/01; B60R21/015; B60R21/01512; B60R21/0153; B60R21/01532; B60N2210/00; B60N2210/10; B60N2210/12; B60N2230/00; B60N2230/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
46 words
A capacitive occupation detector apparatus comprising: a first electrode having an inner space therein; a second electrode constituting a capacitor by cooperating with the first electrode; and detecting circuit means for detecting the presence of a person based on the change of capacitance between said electrodes.
Claim 2
Dependent Claim
29 words
A capacitive occupation detector apparatus according to claim 1, wherein the inner space is in the form of a rectangular cutout and the first electrode has a U-shaped configuration.
Claim 3
Dependent Claim
26 words
A capacitive occupation detector apparatus according to claim 1, wherein the inner space is in the form of an opening completely surrounded by said first electrode.
Claim 4
Dependent Claim
29 words
A capacitive occupant detector apparatus according to claim 1, wherein the first electrode is disposed within a seat apparatus and the second electrode is comprised of a vehicle body.
References Cited (Backward Citations)
US3764861A
Cited
US3863209A
Cited
US3943376A
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US3874474A
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US4055735A
Cited
DE2549588A1
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DE2716870A1
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DE3213065A1
Cited
DE3129612A1
Cited
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