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US 8,465,663 B2Granted
Composition for electromagnetic wave suppression and heat radiation and method for manufacturing composition for electromagnetic wave suppression and heat radiation
AssigneeSony Corporation
InventorsYoshihiro Kato, Kazuhiko Suzuki, Tatsuo Kumura, Yusuke Kubo
Life of this patent
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Abstract
A composition for electromagnetic wave suppression and heat radiation includes: a matrix composed of a high molecular material or a low molecular material; and a magnetic particle filled in the matrix upon mixing a magnetic powder having a relation of {(tap density)/density}≧0.58 with the matrix.
Claims21
A composition comprising:
- a matrix;
- magnetic particles in the matrix, the magnetic particles having a relation of {(tap density)/density}≧0.58 with respect to the matrix;
- and
- thermally conductive particles in the matrix, the thermally conductive particles having a relation of {(tap density)/density}≧0.58 with respect to the matrix,
- wherein,
- the magnetic particles are effective to suppress electromagnetic waves and the thermally conductive particles are effective to cause the composition to radiate heat.
3 more elements
A method for manufacturing a composition for electromagnetic wave suppression and heat radiation comprising the steps of:
- obtaining a magnetic powder having a relation of {(tap density)/density}≧0.58 with respect to a matrix;
- mixing the magnetic powder into the matrix;
- and
- mixing a thermally conductive powder into the matrix,
- wherein,
- the thermally conductive powder has a relation of {(tap density)/density}≧0.58 with respect to the matrix.
3 more elements
Dependencies are inferred from the claim text.