Composite sheet material for magnetic and electronic shielding and product obtained therefrom
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 3, 1987
Grant Date -
N/A
app pub date -
Dec 28, 1984
filing date -
Dec 28, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Composite sheet material, used for shielding magnetism and electromagnetic waves, principally made of an electrodeposited iron foil, as the core, with a thickness of at least 10 .mu.m which is applied on either side surface thereof a plating layer with a respectively predetermined metal, and of, a covering layer which is formed of a suitable sheet-like material and which is to be laminated on at least one of the two plating layers through the medium of an adhesive layer. A variety of products utilizing this composite sheet material as an essential elements thereof which stretches over a wide field wherein magnetic and electronic shield is required, for example: magnetic-card holders; magnetic-card protection cases or boxes; envelopes and containers for keeping and transporting magnetic recording media; wallpapers for various special rooms, etc.
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