Abstract: A stainless wire that does not have a crystal grain of 200 nm or greater in maximum length in a surface normal to a fiber axis within a range of 1 ?m square from a center of a diameter in a cross section normal to a fiber axial direction is used as the stainless wire that forms a fabric material.

Abstract: A power conversion apparatus that is connected between a solar panel and a power system, in which the power conversion apparatus includes a power generating mode that converts a generated power of the solar panel into an alternating current power, and a snow melting mode that heats the solar panel by obtaining the power from the power system, and supplying the power to the solar panel, and at the time of the snow melting mode, the power conversion apparatus controls a voltage which is output to the solar panel such that a first current value being a value where a current that is supplied to the solar panel from the power conversion apparatus is smaller than an overcurrent level of the solar panel flows in a predetermined period.

Abstract: A stainless wire that does not have a crystal grain of 200 nm or greater in maximum length in a surface normal to a fiber axis within a range of 1 ?m square from a center of a diameter in a cross section normal to a fiber axial direction is used as the stainless wire that forms a fabric material.

Abstract: A heater member for a chair, of which the dimension as measured in the width direction is not constant, includes a fabric of a weft knitting structure having a plurality of conductive threads woven into the fabric as a part of constituent yarn. Each of the conductive threads has substantially the same length.

Abstract: A woven fabric having a high shrinkage yarn that has a predetermined shrinkage ratio and a low shrinkage yarn that has a relatively lower shrinkage ratio than the high shrinkage yarn, includes an inductive portion that is formed by the high shrinkage yarn, and allows displacement in a planar direction. At least a portion of the low shrinkage yarn is engaged with the inductive portion and bent in the planar direction.

Abstract: In a skin material of vehicle interior equipment, which includes a first fabric material that is formed of a first conductive wire material and a main fiber material weaker than the first conductive wire material, and a manufacturing method for the skin material, part of the main fiber material is removed from the first fabric material, and a conductive member, which is used to supply electric power to the conductive wire material, is electrically connected to the exposed first conductive wire material.

Abstract: A manufacturing method for a skin material of a vehicle interior equipment includes exposing a conductive wire material by removing a main fiber material from a first fabric material formed of the conductive wire material and the main fiber material that is weaker than the conductive wire material and electrically connecting a conductive member, which is used to supply electric power to the conductive wire material, to the exposed portion of the conductive wire material.

Abstract: A manufacturing method for a skin material of a vehicle interior equipment includes exposing a conductive wire material by removing a main fiber material from a first fabric material formed of the conductive wire material and the main fiber material that is weaker than the conductive wire material and electrically connecting a conductive member, which is used to supply electric power to the conductive wire material, to the exposed portion of the conductive wire material.

Abstract: Fabric material has nonconductive core yarn, and conductive sheath yarn arranged in a spiral pattern around the core yarn. The sheath yarn includes conductive first yarn, and second yarn. At least five strands of the first yarn are arranged close-packed together while being twisted around the second yarn.

Abstract: A heating yarn includes an insulating yarn and a conductive yarn that is wound around the insulating yarn. The conductive yarn has an insulating core yarn and a plated layer (such as a copper plated layer) formed on a peripheral surface of the core yarn, and the core yarn is a high elasticity yarn (such as an aramid fiber) with an initial tensile resistance of 4.9 GPa or higher. Moreover, the heating yarn is woven in or knitted into the woven or knitted fabric as part of the constituent yarn.

Abstract: A cloth material in a raw fabric state includes a conductive fiber, and another fiber that is nonconductive. The conductive fiber is arranged along a width direction of the cloth material in a raw fabric state. A first weave portion that is used to create a product such as a seat cover is established at a center, in the width direction, of the cloth material in a raw fabric state. A second weave portion, in which the conductive fiber is arranged in a non-interfering way so as to not go over and under, or be intertwined with, the other fiber in the second weave portion, extends from both ends of the first weave portion.

Abstract: A heater member for a chair, of which the dimension as measured in the width direction is not constant, includes a fabric of a weft knitting structure having a plurality of conductive threads woven into the fabric as a part of constituent yarn. Each of the conductive threads has substantially the same length.

Abstract: In a skin material of vehicle interior equipment, which includes a first fabric material that is formed of a first conductive wire material and a main fiber material weaker than the first conductive wire material, and a manufacturing method for the skin material, part of the main fiber material is removed from the first fabric material, and a conductive member, which is used to supply electric power to the conductive wire material, is electrically connected to the exposed first conductive wire material.

Abstract: The present invention offers polypropylene terephthalate textured yarn which has little dyeing unevenness or fibrillation, and is outstanding in its product quality, by carrying out texturing at the same time as drawing under specified conditions using polypropylene undrawn yarn; together with a method for the production thereof.

Abstract: A composite textured yarn contains a component yarn A and a component yarn B each false twisted and crimped. The component yarn B is shorter in yarn length or larger in shrinkage at least after heat treatment. Single fibers of component B have thick portions and thin portions successively alternating in the longitudinal direction.

Abstract: An electric power converter having an AC input and AC output, and comprising a power rectifier and a power inverter having a DC three-wire circuit, wherein means for detecting a current or a voltage is connected between the AC power source and ground. When a current or a voltage is detected, an alarm is produced or the apparatus is halted. This makes it possible to judge whether the power inverter is in a state capable of producing an excessively large potential.

Abstract: A composite textured yarn contains a component yarn A and a component yarn B each false twisted and crimped. The component yarn B is shorter in yarn length or larger in shrinkage at least after heat treatment. Single fibers of component B have thick portions and thin portions successively alternating in the longitudinal direction.

Abstract: A sine wave input converter provided with a phase sequence computation unit which inputs two line voltages or two phase voltages of the three phase ac power supply, computes the phase of a sine wave voltage of one of these two inputs, and determines on the basis of computation using these two input voltages and the phase whether the phase sequence is positive or antiphase, which is determined depending on whether the result of computation assumes a constant value, or becomes a sine wave oscillating between positive and negative values. Power supply interruption can be determined from the same computation result.

Abstract: In a power converter apparatus having a three-phase AC power supply connecting unit, a positive side capacitor, a negative side capacitor, first-phase and third-phase converting circuits each including switching elements connected in series, and a common phase for connecting a neutral polarity to a second phase, there are provided a common phase converting circuit including two switching elements connected in series between positive and negative polarities, a change detector for detecting a temporal change of an electric current flowing through the common phase, and a duty controller for changing the on-off duty of the switching elements in the common phase converting circuit on the basis of the temporal change.

Abstract: An inverter that has one or more transistors for supplying current to a load with one or more phases is provided with an overcurrent protection for the transistor. The changing rate for reducing the base current to the transistor upon the detection of an overcurrent is reduced according to a separate delay circuit so that the transistor will not be destroyed by an over voltage that would otherwise occur due to a rapid drop in current passing through the transistor and the inductance of the load circuit including the transistor.