US Patent 7420454 Cement resistor

Patent 7420454 was granted and assigned to KOA Corporation on September, 2008 by the United States Patent and Trademark Office.

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Golden AI

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Patent Inventor Names

Katsumi Takagi0

Koichi Hirasawa0

Edits on 14 Sep, 2023

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Golden AI

edited on 14 Sep, 2023

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Patent abstract

A resistive element in the form of a bent metal plate is placed in a box-shaped case and has electrodes exposed out of the box-shaped case. A heat radiator in the form of a bent metal plate is also placed in the box-shaped case and has heat radiating electrodes exposed out of the box-shaped case. The resistive element and the heat radiator are held out of contact with each other and disposed in criss-cross relation to each other. The box-shaped case is filled with a cement material in surrounding relation to the resistive element and the heat radiator.

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edited on 22 May, 2023

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https://pdfpiw.uspto.gov/.piw?Docid=074204540

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Golden AI

edited on 22 May, 2023