Abstract: A multilayer ceramic capacitor includes a plurality of ceramic dielectric layers, a plurality of inner electrode layers and and external electrodes. The ceramic dielectric layers includes barium titanate crystal grains having pores inside. The inner electrode layers are between the ceramic dielectric layers. The external electrodes are electrically connected to the inner electrode layers. The barium titanate crystal grains each have a core-shell structure which include a core and a shell around the core. The the pores are mainly formed in the cores.

Abstract: A multilayer ceramic capacitor includes a plurality of ceramic dielectric layers, a plurality of inner electrode layers and and external electrodes. The ceramic dielectric layers includes barium titanate crystal grains having pores inside. The inner electrode layers are between the ceramic dielectric layers. The external electrodes are electrically connected to the inner electrode layers. The barium titanate crystal grains each have a core-shell structure which include a core and a shell around the core. The the pores are mainly formed in the cores.

Abstract: A seat slide device for automotive vehicles including a lower rail to be fixed to a floor panel of an automotive vehicle, an upper rail slidably fitted to the lower rail, a lock plate capable of locking, at a desired position, a sliding movement of the upper rail in which the lock plate is pivotally supported by the upper rail, and a seat bracket for fixing a seat cushion which is secured to the upper rail. The lower rail includes, when viewed in a direction of an end face thereof, two side wall portions bent upwardly from two sides of a bottom wall portion, top wall portions bent inwardly in mutually opposing directions like a fishing hook from upper ends of the side wall portions, and vertically-downwardly extending wall portions. The upper rail includes a pair of generally L-shaped plates each of which includes a horizontal wall portion which is bent like a fishing hook from a lower end portion of a vertical wall portion and a raised wall portion.

Abstract: First, a rectangular metal plate having thinner and thicker portions corresponding to a lighter-wall portion and heavier-wall portion of a pipe to be manufactured is prepared. Before bending the plate until both edges thereof meet to form a tubular piece, the plate width is adjusted by cutting off part of the thinner portion so that the desired peripheral lengths are attained in both lighter- and heavier-wall portions of the pipe. The width-adjusted plate is then bent until both edges are butted together to form a tubular piece. By butt-welding the adjoining edges, a metal pipe with longitudinally differentiated wall thickness is obtained.