Abstract: A method of the invention manufactures a conductive resin composition having powdered silver and a reinforcing agent of the Mohs hardness 3.5 to 4.5 contained in binder resin, and forms an electrode substrate by use of the conductive resin composition. Thereby, hardness balance between phosphor copper and an electrode is regulated into the most appropriate state, and a wear resistance of both can be enhanced.

Abstract: The conductive resin composition contains silver powder that is a mixture of spherical particles and dendrite particles dispersed in binder resin, wherein the content (% by volume) of the spherical particle is larger than the content of the dendrite particle so that a conductive path is formed by silver powder of spherical particles, and dendrite particles are interposed between spherical particles.

Abstract: A long-life encoder switch which can enable flexible production in which a wide variety of products are manufactured in low volume is provided by using a conductive resin composition which has both excellent conductivity and abrasion resistance as a material for a contact part. The contact part of the encoder switch is produced by making a pattern of the conductive resin composition by screen printing and the conductive particles of the conductive resin composition contain a conductive powder of carbon beads with silver-coated surfaces and a silver powder.

Abstract: A method of the invention manufactures a conductive resin composition having powdered silver and a reinforcing agent of the Mohs hardness 3.5 to 4.5 contained in binder resin, and forms an electrode substrate by use of the conductive resin composition. Thereby, hardness balance between phosphor copper and an electrode is regulated into the most appropriate state, and a wear resistance of both can be enhanced.

Abstract: The conductive resin composition contains silver powder that is a mixture of spherical particles and dendrite particles dispersed in binder resin, wherein the content (% by volume) of the spherical particle is larger than the content of the dendrite particle so that a conductive path is formed by silver powder of spherical particles, and dendrite particles are interposed between spherical particles.

Abstract: A conductive resin composition that is rendered both highly conductive and wear resistant, and accommodable to fine pattern forming is provided. The conductive resin composition contains carbon beads and carbon black as a conductive filler in phenolic resin served as a binder resin, wherein the conductive filler content is in the range from 34 to 60% by weight, both excellent conductivity and wear resistance can be obtained thereby. Furthermore, by partially replacing the binder resin with xylenic resin, fine pattern forming is realized while the excellent conductivity and wear resistance are maintained.

Abstract: A long-life encoder switch which can enable flexible production in which a wide variety of products are manufactured in low volume is provided by using a conductive resin composition which has both excellent conductivity and abrasion resistance as a material for a contact part. The contact part of the encoder switch is produced by making a pattern of the conductive resin composition by screen printing and the conductive particles of the conductive resin composition contain a conductive powder of carbon beads with silver-coated surfaces and a silver powder.

Abstract: A thermally sensitive element is manufactured as follows: a carbonized sheet material is prepared by carbonizing an aramid film at a low temperature; a conductive layer made of carbon ink is formed on the surface of the carbonized sheet material; and a pair of extraction electrodes made of a thin metallic film are provided on the reverse surface of the carbonized sheet material. For applying the thermally sensitive element to a radiation sensor, the conductive layer is arranged to receive radiant rays from the outside, and terminals are connected to the extraction electrodes.

Abstract: A conductive composition comprising conductive particles made of a mechanical composite powder of copper or nickel covered with silver and a binder mainly containing bis-phenol A type epoxy resin (diglycidyl ether of bisphenol A) having 1600 to 5500 of molecular weight method for manufacturing a printed circuit substrate comprising the steps of printing the conductive composition on an insulating substrate and partially curing it in a range of 20 to 70% of completion as determined from DTA reactivity data. Thus, the conductive composition can manufacture an inexpensive circuit in simple steps as a whole with good solderability using low melting point solder and having high bonding strength. The method can manufacture the circuit by using the same conductive composition.

Abstract: A transparent touch-sensitive panel comprising a transparent touch-sensitive switch consisting of an upper plate, a lower plate, and an insulating spacer. A transparent board has an outer peripheral portion to which the lower plate is bonded via a transparent adhesive layer. A visual display such as a liquid-crystal display is mounted on the underside of the board. An uneven surface is formed on one of the upper surface of the board and the lower surface of the lower plate which are disposed opposite to each other and through which the light emanating from the visual display is transmitted.