Electromagnetic wave absorbing shielding material
AssigneeNippon Paint Co., Ltd.
InventorSeiichi Matsuo
Life of this patent
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Abstract
An electromagnetic wave absorbing shielding material which is thin and lightweight and shows high electromagnetic wave absorbing capacity in a wide frequency region. The material comprises: (1) a one-dimensional conductive segment pattern which is a conductive segment pattern formed from a conductive material, wherein the conductive segment pattern has a length of more than 1/2 of the wavelength of the subjective electromagnetic wave, and the segment pattern has no electrical connection therebetween, (2) an electromagnetic wave shielding layer, and (3) an insulating intermediate material having a thickness of 0.1-10.0 mm, located between the one-dimensional conductive segment pattern (1) and the electromagnetic wave shielding layer (2).
Claims10
An electromagnetic wave absorbing shielding material comprising:
- (1) a conductive segment pattern which is formed from conductive segments of a conductive material by patterning a deposited metal film having a thickness of 50 to 5,000 .ANG., said conductive segment pattern having a length of more than 1/2 of the wavelength of the subjective electromagnetic wave, and said conductive segments having no electrical connection therebetween,
- (2) an electromagnetic wave shielding layer, and
- (3) an insulating intermediate material having a thickness of 0.1-10.0 mm, located between the conductive segment pattern (1) and the electromagnetic wave shielding layer (2).
Dependencies are inferred from the claim text.