An electronic device with self-recovering properties including a substrate including a polymer composite, a conductive pattern disposed on the substrate, and an electrode disposed on the conductive pattern is provided, and the polymer composite includes a composite of different first and second polymers, the first polymer includes a first functional group capable of forming a hydrogen bond between polymer chains, and the second polymer includes a second functional group capable of forming a hydrogen bond between polymer chains.

A pen-shaped position indicator includes: i) a cylindrical housing; ii) a core received in the cylindrical housing and having a pointer tip extend from a distal end of the cylindrical housing; iii) a resonant circuit comprised of an inductive element and a capacitor and received in the cylindrical housing, wherein an inductance of the inductive element changes in response to a pressure applied to the pointer tip of the core; iv) a connection member received in the cylindrical housing between the inductive element and the capacitor, wherein the connection member includes a distal surface facing the inductive element and a proximal surface facing the capacitor, and the connection member includes a terminal member having a distal end and a proximal end; and v) a first conductor disposed on a distal surface of the capacitor facing the proximal surface of the connection member, wherein the first conductor electrically connects the capacitor, via the at least one terminal of the connection member, to the inductive element.

A pen-shaped position indicator includes: i) a cylindrical housing; ii) a core received in the cylindrical housing and having a pointer tip extend from a distal end of the cylindrical housing; iii) a resonant circuit comprised of an inductive element and a capacitor and received in the cylindrical housing, wherein an inductance of the inductive element changes in response to a pressure applied to the pointer tip of the core; iv) a connection member received in the cylindrical housing between the inductive element and the capacitor, wherein the connection member includes a distal surface facing the inductive element and a proximal surface facing the capacitor, and the connection member includes a terminal member having a distal end and a proximal end; and v) a first conductor disposed on a distal surface of the capacitor facing the proximal surface of the connection member, wherein the first conductor electrically connects the capacitor, via the at least one terminal of the connection member, to the inductive element.

A film capacitor is disclosed. In an embodiment a film capacitor includes a film comprising a blend of polypropylene and cyclo-olefin copolymer, wherein the blend includes an amount of at least two thirds by weight of polypropylene, and wherein the cyclo-olefin copolymer includes ethylene in a range of 23 weight % to 27 weight % inclusive and norbornene in a range of 73 weight % to 77 weight % inclusive.

A high voltage capacitive device having: a non-impregnatable film having a plurality of physically separated regions each defined by a conductive coating provided on the non-impregnatable film, wherein the non-impregnatable film is wound in a plurality of turns to form a plurality of layers, wherein the regions are arranged in overlapping layers in the radial direction, wherein the non-impregnatable film forms a dielectric between adjacent layers of the regions, and wherein the conductive coating of at least some of the regions is provided with a plurality of first radial openings extending through the conductive coating to the non-impregnatable film, which delimits a radial extension of each first radial opening.

A wet capacitor is provided, and the use of an insulation fluid composition in such a capacitor. The capacitor includes a package of a metal foil and a polymeric insulating film, or of a metallized polymeric film, wherein the insulation composition includes a synthetic or natural aromatic oil and a polymer. The insulation composition is configured to undergo a thermo-reversible oil-to-gel transition at a predefined gel-point temperature. Further, methods of producing such wet capacitors are provided, optionally including additional filling materials, and methods of sealing leaks in such capacitors.

Film capacitor is formed by winding first metal layer, first film, second metal layer, and second film that are in a stacked state in this order. In film surfaces of first and second films, an orientation angle of first film and an orientation angle of second film are different in sign from each other when a sign of the orientation angle which represents rotation from reference direction RD to one of both end surfaces is defined to be positive, and the sign of the orientation angle which represents rotation from reference direction RD to another of both end surfaces is defined to be negative. Here, the orientation angle is defined by an acute angle between an orientation main axis MA between reference direction RD parallel to first and second end surfaces when portions of first and second films facing each other through second metal layer are viewed in a direction perpendicular to the film surfaces.

A film capacitor includes a main body portion and external electrodes. The main body portion includes a dielectric film and a metal film that is disposed on one surface of the dielectric film. The metal film has surface roughnesses of S1 and S2 where S1 denotes a surface roughness of the metal film in a first direction, and S2 denotes a surface roughness of the metal film in a second direction. The first direction is perpendicular to the second direction. S1 is greater than S2. The main body portion includes a pair of ends in the first direction thereof. The external electrodes are disposed on the pair of ends in the first direction of the main body portion, respectively. An average value of fractal dimensions of irregularity boundary lines due to wrinkles of the metal film is 1.08 or more.

A film capacitor includes a main body portion and external electrodes. The main body portion includes a dielectric film and a metal film that is disposed on one surface of the dielectric film. The metal film has surface roughnesses of S1 and S2 where S1 denotes a surface roughness of the metal film in a first direction, and S2 denotes a surface roughness of the metal film in a second direction. The first direction is perpendicular to the second direction. S1 is greater than S2. The main body portion includes a pair of ends in the first direction thereof. The external electrodes are disposed on the pair of ends in the first direction of the main body portion, respectively. An average value of fractal dimensions of irregularity boundary lines due to wrinkles of the metal film is 1.08 or more.

A method of manufacturing self-healing polymer capable of controlling physical properties is provided. The method includes forming the self-healing polymer by adjusting a copolymer composition using monomers of glycidyl methacrylate (GMA) and 2-hydroxyethyl acrylate (HEA) and an initiator of tert-butyl peroxide (TBPO) based on an initiated chemical vapor deposition method (iCVD).