原始名称记载: TAIYO YUDEN CO., LTD.

Provided is a coil component in which external electrodes are less likely to be removed off the base body. The coil component includes a base body and first and second external electrodes provided on a first surface of the base body. The base body has first to fifth surfaces. The first external electrode is spaced apart from the second surface of the base body at a first corner region and a second corner region and is in contact with the second surface at a region other than the first corner region and the second corner region. The second external electrode is spaced apart from the third surface of the base body at a third corner region and a fourth corner region and is in contact with the third surface at a region other than the third corner region and the fourth corner region.

One object is to improve the insulation reliability of capacitors having dielectric layers containing rare earth elements. An aspect of the present disclosure provides a capacitor including a body, a first external electrode provided on the body, and a second external electrode provided on the body. The body has a first internal electrode layer, a second internal electrode layer, and a dielectric layer disposed between the first internal electrode layer and the second internal electrode layer. The dielectric layer contains crystal grains of barium titanate. The crystal grains each include a core portion and a shell portion covering the core portion. The concentration of Ho in the shell portion is from 0.5 at % to 5 at %. The concentration of Ni and the concentration of Fe in the shell portion are from 0.3 at % to 3 at %.

A multilayer ceramic capacitor includes a cuboid element body having a multilayer unit alternately laminating ceramic layers and internal electrodes composed primarily of metal, a pair of covering portions arranged at both ends of the multilayer unit in the laminating direction and covering surfaces of the multilayer unit, and margin portions covering at least some of the end portions of the ceramic layers and the internal electrodes in the multilayer unit, and connecting the pair of covering portions to each other; and a plurality of terminal electrodes electrically connected to the internal electrodes, and arranged in a spaced-apart manner on a mounting surface, which is one of the surfaces forming the surfaces of the element body, facing the circuit board during circuit board mounting, wherein the plurality of terminal electrodes are arranged in m units in a first direction on the mounting surface and n units in a second direction perpendicular to the first direction (where m is a natural number equal to or greater than 2 and n is a natural number), a region in which the terminal electrodes are not arranged on the mounting surface has a mounting surface side intersection portion in which a first straight line and a second straight line intersect, and a mounting surface side non-intersection portion in which the first straight line and the second straight line do not intersect, when the first straight line is drawn to extend in the first direction without touching any of the terminal electrodes and the second straight line is drawn to extend in the second direction without touching any of the terminal electrodes, and the element body satisfies T1<T2, where T1 is a dimension in the laminating direction of the element body, as measured with reference to a mounting surface side intersection portion, and T2 is a dimension in the laminating direction of the element body, as measured with reference to a mounting surface side non-intersection portion.

An array antenna includes a first member having first through holes arranged along a first direction, a second member that is provided to overlap with the first member, and has second through holes and third through holes, first waveguide members each having a ridge shape, each of the first waveguide members being in contact with one of a first surface of the first member and a second surface of the second member, a first air gap functioning as a waveguide being formed between each of the first waveguide members and another of the first and the second surfaces, and a plurality of rods provided around the first waveguide members, the rods being in contact with one of the first and the second surfaces, a second air gap being formed between the rods and the another of the first and the second surfaces.