A noise filter in which the resonance of noise can be prevented, which is small in size and inexpensive, and is useful especially in an electronic device of which the signal frequency exceeds 100 MHz. In the noise filter, ground conductors are arranged on the outermost layers of a laminate formed by...http://www.google.com/patents/US7091800?utm_source=gb-gplus-sharePatent US7091800 - Noise filter