Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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Filing date
Publication date
Application filed by Matsushita Electric Industrial Co LtdfiledCriticalMatsushita Electric Industrial Co Ltd
Priority to JP8050376ApriorityCriticalpatent/JPS535444A/en
Publication of JPS535444ApublicationCriticalpatent/JPS535444A/en
PURPOSE: To scheme out longevity of insulating performance in a sheathed heater by means of providing heat resisting electrical insualting material between a pipe and a filler, which is melted under heat for permeating the filler in order to form insulating layers all over the heater.