Abstract: A socket includes: a support in which a first electrical component is disposed on a top side of the support and a second electrical component is disposed on a bottom side thereof; and a signal pin held by the support and electrically connecting to the second electrical component and the first electrical component, wherein the support includes: a body made of a metal, the body holding the signal pin and being connected to a ground; a top plate portion having insulation, the top plate portion being provided above the body and including a top-side first through hole in which a top edge of the signal pin is disposed and a top-side second through hole provided around the top-side first through hole; and a conductive portion formed on an inner peripheral surface of the top-side second through hole and electrically connected to the body when in use.

Abstract: Provided are a forming method and a forming apparatus which can secure strength after forming while suppressing deformation. The forming method of the present invention includes a burring step and a pressing step. In the burring step, a branch pipe is formed by causing a cylindrical peripheral wall of a cylindrical member (workpiece) having the peripheral wall to project in an outside direction in a tubular shape. In the pressing step, a distal end surface of the branch pipe is pressed toward a proximal end portion of the branch pipe. In the pressing step, the distal end surface of the branch pipe can be pressed by an end surface pressing punch in a state where a burring punch is inserted in the branch pipe.

Abstract: Provided are a forming method and a forming apparatus which can secure strength after forming while suppressing deformation. The forming method of the present invention includes a burring step and a pressing step. In the burring step, a branch pipe is formed by causing a cylindrical peripheral wall of a cylindrical member (workpiece) having the peripheral wall to project in an outside direction in a tubular shape. In the pressing step, a distal end surface of the branch pipe is pressed toward a proximal end portion of the branch pipe. In the pressing step, the distal end surface of the branch pipe can be pressed by an end surface pressing punch in a state where a burring punch is inserted in the branch pipe.

Abstract: A rotor manufacturing method for manufacturing a rotor including a rotor core, the rotor core having a permanent magnet mounted thereon throughout a circumferential direction, includes covering an outer circumference of the rotor core with a tubular rotor cover; and forming an angular portion conforming to an outer shape of the permanent magnet by pressing an open end of the rotor cover radially inward with use of a pressing member, the open end of the rotor cover axially projecting from an end of the rotor core before being pressed.

Abstract: A rotor manufacturing method for manufacturing a rotor including a rotor core, the rotor core having a permanent magnet mounted thereon throughout a circumferential direction, includes covering an outer circumference of the rotor core with a tubular rotor cover; and forming an angular portion conforming to an outer shape of the permanent magnet by pressing an open end of the rotor cover radially inward with use of a pressing member, the open end of the rotor cover axially projecting from an end of the rotor core before being pressed.

Abstract: A first step of performing solution treatment to a pipe material of a precipitation-hardening type aluminum alloy of high hardness extruded, a second step of performing spinning work to the solution-treated pipe material, and a third step of performing artificial aging to the spinning-worked pipe material.

Abstract: A first step of performing solution treatment to a pipe material of a precipitation-hardening type aluminum alloy of high hardness extruded, a second step of performing spinning work to the solution-treated pipe material, and a third step of performing artificial ageing to the spinning-worked pipe material.

Abstract: A first step of performing solution treatment to a pipe material of a precipitation-hardening type aluminum alloy of high hardness extruded, a second step of performing spinning work to the solution-treated pipe material, and a third step of performing artificial ageing to the spinning-worked pipe material.

Abstract: A method of manufacturing a cylinder, includes a step of inserting a cored bar 2 into piping material 1 having a reduced inner radius at one end and supporting the end of the cored bar with the reduced radius section of the piping material 1. The method also includes rotating the piping material 1 and the cored bar 2, displacing the piping material 1 in an axial direction while passively rotating at least one roller 3 compressing the outer periphery of the piping material 1 and applying a spinning operation to the piping material while pressuring and retaining the piping material between the cored bar 2 and the roller 3. Thus the thickness of the middle section of the piping material is made less than the thickness of the end sections by moving the roller into a position closer to the cored bar in the middle section than in the end sections of the piping material. In this manner, processing of the cylinder can be effectively performed without wastage of the material thereof.

Abstract: A manufacturing method for cylinder, comprises a step of inserting a cored bar 2 into piping material 1 having a reduced inner radius at one end and supporting the end of the cored bar with the reduced radius section of the piping material 1, and a step of rotating the piping material 1 and the cored bar 2, displacing the piping material 1 in an axial direction while passively rotating one or a plurality of rollers compressing the outer periphery of the piping material 1 and applying a spinning operation to the piping material while pressuring and retaining the piping material between the cored bar 2 and the roller 3. Thus the thickness of the middle section of the piping material is made less than the thickness of the end sections by moving the roller into a position closer to the cored bar in the middle section than in the end sections of the piping material. In this manner, processing of the cylinder can be effectively performed without wastage of materials.

Abstract: The present invention is directed to recording materials characterized in that the recording materials comprise at least one of diphenyl sulfone derivatives represented by the following general formula (I); ##STR1## wherein Y represents a linear or branched (un)-saturated C.sub.1 -C.sub.12 hydrocarbon group, a C.sub.1 -C.sub.8 hydrocarbon group having an ether linkage, or a group represented by a general formula; ##STR2## wherein R represents methylene or ethylene; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represent each independently lower alkyl or lower alkenyl; m represents 0 or an integer of 1 or 2,; and n, p, q and r represent each independently 0 or an integer of 1 to 4, provided when n, p, q and r are each 2 or above, the substituents represented by R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be each different from one another.

Abstract: The present invention is directed to recording materials characterized in that the recording materials comprise at least one of diphenyl sulfone derivatives represented by the following general formula (I); ##STR1## wherein Y represents a linear or branched (un)-saturated C.sub.1 -C.sub.12 hydrocarbon group, a C.sub.1 -C.sub.8 hydrocarbon group having an ether linkage, or a group represented by a general formula; ##STR2## wherein R represents methylene or ethylene; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 represent each independently lower alkyl or lower alkenyl; m represents 0 or an integer of 1 or 2,; and n, p, q and r represent each independently 0 or an integer of 1 to 4, provided when n, p, q and r are each 2 or above, the substituents represented by R.sup.1, R.sup.2, R.sup.3 and R.sup.4 may be each different from one another.

Abstract: There is provided an interface in which an external connection connector can be used in common to signal conversion circuits when V24/V28 and V35 interfaces recommended by CCITT are used in common, so that the number of parts can be reduced and the sized can be reduced. A V24/V28 interface signal is utilized for part of the V35 interface so that part of the interface conversion circuit may be used in common, and either one of a V24/V28 exclusive conversion unit and a V35 exclusive conversion unit is selected by means of a switch. A connector in the form of an RS232C is used. A V35 exclusive signal is assigned to a pin which is not used when the interface converter is used as the V24/V28 interface but the connector is connected to a V35 connector through a conversion cable when the interface converter is used as the V35 interface.

Abstract: Disclosed is a gas-discharge display panel having plural discharge cells arranged in a matrix. Each of the discharge cells is provided with a hot cathode consisting of conductive material having a shape which provides a heat capacity and heat conductivity as small as possible. Each cathode is coated by an electron emissive material having a small work function. As a result, the hot cathode can be heated to a required working temperature solely by the bombardment of particles contained in a discharge current itself, without requiring any externally supplied heating power to obtain a highly efficient use of applied driving power.

Abstract: A gas-discharge display panel comprises plural elongated minute gas-discharge cells arranged in matrix directly on inner faces of front and rear insulator plates, on opposite sides of which cells elongated anodes and cathodes are disposed respectively and which cells are driven by igniting pulses, sustaining pulse-trains and erasing pulses in response to picture signals to be displayed. In these cells glows appear closely by both of anodes and cathodes and excite fluorescent layers which are disposed on cell-walls at the closest distance, so that very high brightness and efficiency of gas-discharge display can be obtained with a simple structure, and further a memory function of gas-discharge can be effected by virtue of the sustaining pulse-trains.

Abstract: A gaseous discharge display panel of multi-layer construction comprises a transparent front sheet, a rear sheet, an intermediate sheet inserted between the front and rear sheets, said intermediate sheet having a number of elongated recesses for confining a number of discharge spaces extending in a plane of the intermediate sheet in parallel with each other and a number of through holes or recesses for constructing a number of communication channels, a number of anodes each arranged near one of the respective discharge space, a number of hollow cathodes arranged above the rear sheets, the other ends of the discharge spaces being communicated with the hollow cathodes through said communication channels, and a number of fluorescent layers applied on inner surfaces of the recesses formed in the intermediate sheet for confining the discharge spaces. The front, intermediate and rear sheets are connected to each other to form a hermetically sealed envelope and an ionizable gas is contained in the envelope.

Abstract: A pulse width luminance modulation system for driving a gas discharge panel in line at a time. The driving circuit for the discharge cell comprises a CR time constant element in order to enlarge the contrast range of the picture to be displayed. The discharge cell is caused to produce glow discharge when the pulse width of the pulse width modulation driving pulse is wider than a certain value depending on the CR time constant to produce normal pulse width luminance modulation of the glow discharge, and the discharge cell is caused to produce instantaneous irradiation of which the intensity is dependent on a stored charge in the capacitive element C of the CR element when the driving pulse width is narrower than the certain value so as to widen the low luminance range and by suitably selecting the value of the CR element for obtaining continuity of the two luminance characteristics, and further the input signal for making luminance modulation is applied with a correction in order to make the .gamma.

Abstract: A gaseous discharge display panel in which in order to display images of good quality with high brightness and high efficiency a discharge unit constituting of a picture element of the display panel is formed as an elongated fine section extending in parallel to the display plane and discharge is produced in the longitudinal direction of the discharge unit so as to display images with the aid of plane discharge. Particularly in order to display color images on the front and/or rear side of the discharge unit there is arranged an insulating sheet to which fluorescent materials are applied in such a manner that the fluorescent materials are opposed near a discharge plasma with a large area and an ultra-violet ray produced by the discharge can excite efficiently the fluorescent materials.