Abstract: A disk device includes a magnetic disk, a magnetic head, a flexible printed circuit board, an electronic component, and a wall. The flexible printed circuit board is electrically connected to the magnetic head. The electronic component is mounted on the flexible printed circuit board. The wall has rigidity higher than the flexible printed circuit board and is attached to the flexible printed circuit board. The flexible printed circuit board with a first through hole includes a first surface facing the electronic component with a gap, and a second surface opposite the first surface and facing the wall, the first through hole being open to the first surface and the second surface to communicate with the gap. The wall is provided with a second through hole penetrating the wall to communicate with the first through hole.

Abstract: This disclosure relates to a denture having a porous metal gauze as a denture plate formed of plural wire nets with a straight wire used as warps and wefts. The nets are laid one over another in layers in the manner that the meshes thereof are staggered each other with respect to the direction of thickness and the crossing portions of the warps and wefts in the same plane and the crossing portions of the warps and wefts in contact with each other in the direction of thickness are sintered to have a plurality of minute and complicatedly curved pores in the porous metal gauze. The denture permits penetration of saliva and food liquid through the thickness of the denture plate to supply oxygen and nutrient to the mucous membrane under the plate to thereby maintain physiological function and health of the membrane and to provide a sense of wearing the denture and a sense of bite occlusion in such a natural state as would hardly be brought about by a conventional denture.