A transformer for mounting on a mast of an air-insulated energy distribution network has a core which is protected against corrosion and environmental influences, while at the same time stable retention is provided. The transformer contains a winding block having a solid insulating body, in which at least one upper voltage winding and at least one lower voltage winding are arranged. The winding block delimits a completely peripherally closed central retention opening. Furthermore, a core unit is provided which has at least one magnetizable core and is inductively coupled to each lower voltage winding by each upper voltage winding. The core unit extends through the retention opening via at least one core leg and annularly extends around the winding block on the outside by a ring portion. Retention devices are provided for fastening the ring portion to the mast.

An apparatus and method for physical vapor deposition includes a magnetron having a plurality of electromagnets disposed between a base and a magnetic conductive plate. The magnetron includes a plurality of individually controlled electromagnets between a base and an electromagnetic plate. The magnetron controls the polarity and strength of current supplied to the respective electromagnets to generate magnetic fields that confine electrons to areas near a target material within the deposition chamber.

A reactor has a coil and a loop-shaped magnetic core disposed extending inside and outside the coil. The coil has two winding portions that are disposed laterally side-by-side, and the magnetic core has two inner core portions that are disposed inside the winding portions, and two outer core portions that are disposed outside the winding portions and connect end portions of the two inner core portions. The reactor includes an inner resin portion obtained by filling a space between inner peripheral faces of the winding portions and the inner core portions, end face intervening members disposed between end faces of the winding portions and the outer core portions, and spacer pieces that are integrated with the end face intervening members and are disposed extending between an entirety of mutually opposing inward faces of the two winding portions.

This invention presents a new packaging technique that allows for the use of a wider range of isolating materials for inductive conductivity sensors, thereby significantly reducing the cost of producing the sensors, improving their precision and accuracy, and increasing their sensitivity.

An inductor includes a body including a support member including a through-hole, an internal coil disposed on the support member, and an encapsulant encapsulating the support member and the internal coil; and an external electrode disposed on an external surface of the body and connected to the internal coil. The external electrode includes a conductive resin layer and a double conductive layer of a first conductive layer and a second conductive layer, disposed between the conductive resin layer and the internal coil.

A surface mount inductor includes a coil including a winding portion and extension portions that extend from the outer circumference of the winding portion, a molded body which contains a metal magnetic powder and in which the coil is embedded, and outer terminals. The molded body is a rectangular parallelepiped. Each end portion in the longitudinal direction of the principal surface has an outer terminal connected to the extension portion. A resin coating is formed on the molded body except regions in which the outer terminals are provided, and W.sub.1 is less than W.sub.0, where the width between ridges opposite to each other in a lateral direction of the principal surface is denoted as W.sub.0 and the width of each outer terminal in the lateral direction is denoted as W.sub.1, and neither end in the width direction of each outer terminal is in contact with the ridges.

Provided is a reactor including a coil and a magnetic core. The coil includes a winding portion, the number of winding portions is one, the winding portion has a rectangular tubular shape, the magnetic core is an assembly obtained by combining a first core portion and a second core portion, and the first core portion and the second core portion are constituted by compacts made of different materials.

A chip inductor includes a body having a coil and an insulating member on which the coil is disposed, and external electrodes disposed on external surfaces of the body. The insulating layers are disposed on one surface of the insulating member in the body and another surface opposing the one surface, respectively, and are made of a material different from a material of the insulating member. The insulating member and the insulating layers constitute a multilayer structure. The coil includes a top coil and a bottom coil disposed on a top surface and a bottom surface of the multilayer structure, respectively. The top and bottom coils are connected by a via penetrating through the top and bottom surfaces of the multilayer structure.

A method for the manufacture of a formerless, multi-coil cylindrical superconducting magnet structure is disclosed. The structure comprises superconducting coils and annular spacers of composite filler material. The disclosure also provides a formerless, multi-coil cylindrical superconducting magnet structure as may be manufactured by such a method.

An insulating device includes a first element, a second element, a first lead, a second lead, and a resin member. The second element is electrically connected to the first element. The first element is mounted on the first lead. The second lead includes a first surface and a second surface, the second surface being at a side opposite to the first surface. The second element is mounted to the first surface. the second lead is arranged to overlap the first element in a direction crossing the second surface of the second lead. The resin member seals the first element, the second element, the first lead, and the second lead.