Patent ID: 9090479
Filing Date: 2015-07-28
Classification: C01G,C01P,H01Q,Y10T

Abstract:
1. A dielectric composite material comprising a synthetic resin and ceramic powder, wherein (i) the ceramic powder is at least one ceramic powder having a BET specific surface area within a range of from 0.1 to 2.0 m (ii) the ceramic powder has an apparent density within a range of from 0.8 to 10 g/cm (iii) the ceramic powder contains 5 to 50% by volume of small particles, the particle diameter of primary particles of which is 1.0 μm or smaller, and 50 to 95% by volume of large particles, the particle diameter of primary particles of which exceeds 1.0 μm, and (iv) the ceramic powder has a K value within a range of 2.0 or less, wherein the K value is represented by the following equation: