Abstract: A thermal print head having a base, a glass glaze layer formed on the base by electrically-heated welding, and heating elements formed on the glass glaze layer. A manufacturing method of a thermal print head uses a furnace to accommodate molten glass and a pair of opposed electrodes disposed within the furnace to melt the glass by flowing the current. The method comprises the steps of supplying electric power across the electrodes to cause electric current to flow through glass so as to melt glass, passing an elongated base through the molten glass accommodated in the furnace to form a glass glaze layer on the base, and forming heating elements on the glass glaze layer.

Abstract: A laminated iron core for rotary electromachines comprises a plurality of metallic plates laminated on each other, a glass layer disposed between opposed side surfaces of each pair of the contiguous metallic plates to hermetically bond the latter together, and an aggregate-containing glass compound layer disposed on at least a portion of the end faces of the laminar metallic plates which is likely to be subject to a thermal/mechanical impact during use in rotary electro-machines.

Abstract: An elongated electric incandescent lamp having a closed envelope the inner diameter of which is less than 16mm and which is filled with an inert gas, a plurality of filaments suspended within the envelope and a getter disposed in the vicinity of each of the filaments.

Abstract: A method for bonding together a pair of members comprising positioning a layer of soldering glass between the pair of members, melting the glass, bonding the members into the molten glass and cooling the members. One of the members may be conductive with the soldering glass coated thereon, or the soldering glass may be coated on a conductive element which becomes bonded between the pair of members.

Abstract: A sheath heater comprises a pipe having two open ends, a pair of electrical terminals connected to a heat radiant body in the pipe, a region of electrically insulating powder having a high melting point and loaded inside the pipe to fix the heat radiant body, and a sealing member for the open end having a glass compound layer formed by a molten glass permeating into the insulating powder region at the open end.