A high-frequency filter for cutting off a specific frequency element of a high-frequency signal, includes a transmission line for transmitting the high-frequency signal; and a plurality of branch lines, formed in a direction which intersects the transmission line, having a coupling part at which the branch lines are electromagnetically coupled with each other. As amount of energy supplied reaches a percentage of the friction brake shoepad energy design limit, and indication for inspection is provided. The preferential melting processes will allow more uniform distribution of the dopants in the melted region, due to the increased diffusion rate and solubility of the dopant atoms in the molten region of the substrate. The higher resolution is associated with a higher EV because of the fewer segments used for the computation of the first PSD. Certain embodiments relate to applying the edible ink to a substrate using a lithographic printing process.