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US 4,731,286 AGranted
Radio-wave absorptive gasket
AssigneeTDK Corporation
InventorsHiroshi Yamashita, Yoshiaki Okada, Hiroshi Suzuki
Life of this patent
Estimating the term…
Abstract
A radio-wave absorptive gasket capable particularly of absorbing micro-wave over 10 GHz is provided. The gasket comprises a mixture of Mn-Zn ferrite powder consisting of 4 to 22 mol% MnO, 10 to 18 mol% ZnO and 66 to 78 mole% Fe.sub.2 O.sub.3 with rubber of plastic material.
Claims4
In a radio-wave absorptive gasket, the improvement comprising:
- a mixture of a Mn-Zn magnetic ferrite powder consisting of 4-22 mol percent MnO, 10-18 mol percent ZnO, and 68-78 mol percent Fe.sub.2 O.sub.3 and a member selected from the group consisting of a rubber, a plastic, and mixtures thereof.
Dependencies are inferred from the claim text.