Abstract: In a cylindrical mount in which an inner member and an outer cylindrical member are connected by a main rubber elastic body in a cylindrical shape, the inner member includes a cup member open toward the main rubber elastic body, an end of the main rubber elastic body in an axial direction is inserted and installed to the cup member, a bottom wall of the cup member is superimposed to an end surface of the main rubber elastic body in the axial direction without being bonded, and a circumferential wall of the cup member expands toward an opening side, and, at least in an opening portion, is arranged as a deformation regulation part which has a gap in a state of being separated with respect to the main rubber elastic body toward an outer circumference to be externally inserted.

Abstract: A tungsten recovery method including leaching tungsten while suppressing leaching of silicon by using a weak alkali compound with respect to a tungsten raw material containing silicon with tungsten oxide, separating most of the silicon as a residue during the leaching of the tungsten, and recovering a tungsten leachate having an extremely low silicon concentration.

Abstract: Provided is a cylindrical antivibration device for a motor mount mounted between an electric motor for driving and support members in an automobile, the cylindrical antivibration device having an inner shaft member and an outer cylinder member which are coupled by a body rubber elastic element, in which surfaces of the inner shaft member and the outer cylinder member that face each other in a direction perpendicular to the shaft are continuously coupled over the entire circumference via the body rubber elastic element. On an axial end surface of the body rubber elastic element, an elastic protrusion, that protrudes outward in the axial direction and extends circumferentially in an intermediate portion between the facing surfaces of the inner shaft member and the outer cylinder member, is formed integrally with the body rubber elastic element.

Abstract: A vibration-damping device comprising: first and second attachment members connected elastically by a main rubber elastic body; an inner bracket fixed to the first attachment member with its basal end superposed on an outside end face of the first attachment member while extending laterally relative to the first attachment member; a bag-shaped stopper rubber mounted covering the basal end of the inner bracket in a non-adhesive way; a through hole formed in the stopper rubber so that the first attachment member inserted through it and the inner bracket are mutually fixed; and an elastic contact part provided at a rim of the through hole and pressed against an outer peripheral face of the first attachment member from a distal end side of the inner bracket so that the stopper rubber is positioned relative to the inner bracket in extension direction of the inner bracket.

Abstract: A vibration-damping device comprising: first and second attachment members connected elastically by a main rubber elastic body; an inner bracket fixed to the first attachment member with its basal end superposed on an outside end face of the first attachment member while extending laterally relative to the first attachment member; a bag-shaped stopper rubber mounted covering the basal end of the inner bracket in a non-adhesive way; a through hole formed in the stopper rubber so that the first attachment member inserted through it and the inner bracket are mutually fixed; and an elastic contact part provided at a rim of the through hole and pressed against an outer peripheral face of the first attachment member from a distal end side of the inner bracket so that the stopper rubber is positioned relative to the inner bracket in extension direction of the inner bracket.

Abstract: A vibration damping device including a first mounting member and a tube-shaped second mounting member elastically connected by a main rubber elastic body, the second mounting member being configured to be fixed by press fitting to an outer bracket. The second mounting member has a small-diameter fixed part at a first axial side thereof, and the fixed part is fixed in an embedded state to the main rubber elastic body so as to be covered by the main rubber elastic body. The fixed part has a surface shape with a corner made dull at an inner circumference edge part of an axial end part thereof. A press-fitting surface of the second mounting member to be fitted to the outer bracket has a larger diameter than that of the main rubber elastic body which covers the fixed part.

Abstract: An adhesive sheet comprises a film substrate layer, a channel breathing layer and a breathing adhesive layer. The channel breathing layer has a plurality of convex parts and a concave part interposed between the convex parts that forms a channel communicating with the outside. When the adhesive sheet is applied to an adherend, gas generated from the adherend passes through the channel and swelling of the adhesive sheet is avoided.

Abstract: An electron beam lithography system capable of forming an aperture image on a material to be patterned in such a way that the current density distribution throughout the whole image is uniform, the current density is high, and the resolution is high. The system has an electron gun comprising a plurality of needle-like cathodes arranged in an array forming field emission electron sources. Electrons are extracted from the cathodes.