Electronic equipment casing

1. A casing for electronic equipment, said casing comprising:

a plate-like part formed by a foamed layer provided between an outer rigid layer and an inner rigid layer to isolate said outer rigid layer from said inner rigid layer, wherein said inner rigid layer includes a step and is made of carbon-fiber reinforced plastic, and said outer rigid layer is made of carbon-fiber reinforced plastic;

an antenna part formed by a single layer of material made of glass-fiber reinforced plastic, wherein said antenna part is joined to said plate-like part at said step to form a first edge of said casing to support an antenna; and

a marginal part formed by a single layer of material made of glass-fiber reinforced plastic, wherein said marginal part is joined to said plate-like part at said step to form a second edge of said casing, wherein the length of said marginal part is shorter than the length of said antenna part.

2. The casing of claim 1 , wherein an outline of said inner rigid layer includes a concave portion.

3. The casing of claim 2 , wherein said outline of said inner rigid layer includes a plurality of depressed portions at predetermined pitches.

4. The casing of claim 1 , wherein an outer edge section of said foamed layer is compression-molded.

5. The casing of claim 2 , wherein an outline of said outer rigid layer is a straight edge.

6. The casing of claim 1 , wherein said plate-like part is configured to receive a liquid-crystal display.

7. The casing of claim 6 , wherein said marginal part is configured to secure said liquid-crystal display.