Abstract: Leakage of electromagnetic noise from a wiring substrate is suppressed. A wiring substrate (1) includes a multilayered wiring layer, a structure (8) of a conductor, and an electromagnetic wave absorber (5). An electronic component (2) which is an example of an electromagnetic noise generation source is mounted on the wiring substrate (1). The electronic component (2) has a high-frequency circuit. The structure (8) is formed using the multilayered wiring layer, and is arranged so as to enclose the electronic component (2) in plan view with an opening (4) in the enclosure. The electromagnetic wave absorber (5) is arranged so as to cover the opening (4).

Abstract: A power supply circuit design system according to an exemplary aspect of the invention includes: a power supply voltage fluctuation deriving means for deriving a power supply voltage fluctuation characteristic as a voltage fluctuation characteristic in a semiconductor integrated circuit on the basis of design information about a power supply circuit for connecting the semiconductor integrated circuit and other components mounted on a substrate; a determination reference database including a power supply voltage fluctuation condition as a condition for which the power supply voltage fluctuation characteristic is allowed in the power supply circuit, and a change indicator for at least one of a circuit structure and operation of the semiconductor integrated circuit; a power supply voltage fluctuation determination means for comparing the power supply voltage fluctuation characteristic and the power supply voltage fluctuation condition, and determining whether the power supply voltage fluctuation characteristic s

Abstract: A power supply circuit design system according to an exemplary aspect of the invention includes: a power supply voltage fluctuation deriving means for deriving a power supply voltage fluctuation characteristic as a voltage fluctuation characteristic in a semiconductor integrated circuit on the basis of design information about a power supply circuit for connecting the semiconductor integrated circuit and other components mounted on a substrate; a determination reference database including a power supply voltage fluctuation condition as a condition for which the power supply voltage fluctuation characteristic is allowed in the power supply circuit, and a change indicator for at least one of a circuit structure and operation of the semiconductor integrated circuit; a power supply voltage fluctuation determination means for comparing the power supply voltage fluctuation characteristic and the power supply voltage fluctuation condition, and determining whether the power supply voltage fluctuation characteristic s

Abstract: Leakage of electromagnetic noise from a wiring substrate is suppressed. A wiring substrate (1) includes a multilayered wiring layer, a structure (8) of a conductor, and an electromagnetic wave absorber (5). An electronic component (2) which is an example of an electromagnetic noise generation source is mounted on the wiring substrate (1). The electronic component (2) has a high-frequency circuit. The structure (8) is formed using the multilayered wiring layer, and is arranged so as to enclose the electronic component (2) in plan view with an opening (4) in the enclosure. The electromagnetic wave absorber (5) is arranged so as to cover the opening (4).

Abstract: <PROBLEM(S) TO BE SOLVED BY THE INVENTION> To provide a racing bucket seat and a cooling system for racing cars capable of effectively suppressing the rise of a driver's body, meeting the safety regulations. <MEANS FOR SOLVING THE PROBLEMS> A racing bucket seat includes a plurality of shell through holes formed in a seat shell, an outer shell fixed on the seat shell to cover the shell through holes from a rear side of the seat shell and formed with a layer-like flow passage between the outer shell and a rear surface of the seat shell, and an air intake port introducing the air into the flow passage.

Abstract: A first interconnect substrate includes a first conductor pattern. A second interconnect substrate includes a second conductor pattern. At least a portion of the second conductor pattern is formed in a region opposite the first conductor pattern. At least either the first conductor pattern or the second conductor pattern has a repeated structure. The first conductor pattern and the second conductor pattern constitute at least a portion of an electromagnetic band gap (EBG) structure.

Abstract: A first semiconductor chip (200) is mounted on a second semiconductor chip (100). The first semiconductor chip (200) has a first conductor pattern (222). The second semiconductor chip (100) has a second conductor pattern (122). The second conductor pattern (122) is formed at a region overlapping the first conductor pattern (222) in a plan view. At least one element selected from a group consisting of the first conductor pattern (222) and the second conductor pattern (122) has a repetitive structure.

Abstract: The present invention provides a wiring structure that easily achieves a wiring part having a three-dimensional shape with high connection reliability and high signal quality. A wiring structure (10) according to the present invention includes one or a plurality of cables (18), a fiber (12) forming a mesh-like braiding fabric together with the cable (18), cable connectors (13, 17) formed at ends of the cable (18), and modules (14, 15) connected to the cable connectors (13, 17), the modules receiving or outputting signals through the cable.

Abstract: When soldering is performed, heat transferred from through hole 6b is caused to bypass a mesh-like copper foil region between non-copper-foil regions and thus the transfer of heat to a solid pattern region around thermal land 13b is delayed. Signal wirings 8e, 8f and signal wirings 8g, 8 are formed along the arrangement directions of non-copper-foil regions 15b, 16b respectively keeping a predetermined spacing between them and disposed to overlap copper foil regions, thus ensuring a current return path by means of opposing ground layer 11.

Abstract: A brushless motor according to the present invention is provided with a tubular stator case, a stator core fitted into the stator case, and a rotor rotatably supported via a bearing inside the stator core. The stator core includes a tubular yoke portion and a plurality of split cores which are detachably mounted on the tubular yoke portion. A plurality of commutating-pole teeth which extend radially inward are integrally formed on an inner peripheral surface of the tubular yoke portion at regular intervals in the peripheral direction of the tubular yoke portion; and a root portion of each of the commutating-pole teeth has inclined shoulders which are gradually enlarged radially outward.

Abstract: A brushless motor is provided with: a tubular stator case; a stator core; a rotor rotatably supported via a bearing inside the stator core; a bracket which closes an opening at one end of the stator case; a coil bobbin around which a coil is wound is mounted on an inner peripheral surface of the stator core; a lead wire which feeds power to the coil; and a wiring substrate which relays a connection between one end of the lead wire and the coil, wherein: a drawn-out hole is formed on the bracket at the position corresponding to the connection point of said one end of the lead wire and the wiring substrate such that the other end of the lead wire is drawn outward; and a harness guide is provided on a peripheral edge of the drawn-out hole such that the drawn lead wire is bent and fixed.

Abstract: A computer system includes a rack, a computer module and an interface-dedicated module to be mounted therein, and an intra-rack management module. The rack has a rear panel for power supply to and signal connection among modules, and the modules permit plug-in mounting onto the rear panel of the rack. The computer module has behind the computer a dedicated adapter which makes possible plug-in mounting of the computer onto the rack and coordinates signals between the computer and the rear panel.

Abstract: A brushless motor according to the present invention is provided with: a tubular stator case; a stator core fitted into the stator case; and a rotor rotatably supported via a bearing inside the stator core, wherein: an inner flange portion which extends radially inward is formed at a peripheral edge of an opening of one end of the stator case; and a bracket is fixed to the inner flange portion while contacting therewith so as to close the opening.

Abstract: A brushless motor according to the present invention is provided with: a tubular stator case; a stator core; and a rotor. The stator core includes a tubular yoke portion and a plurality of split cores. A plurality of dovetail grooves are formed in an inner peripheral surface of the yoke portion; each split core has a coil bobbin which has a mounting hole so as to penetrate in a radial direction, and a split teeth which is mounted into the mounting hole of the coil bobbin. The coil bobbin has a winding portion, and flange portions, and a clearance portion into which a winding starting end of the coil is strayed from the winding portion is formed on the inside of the one of the flange portions by reducing the thickness of the flange portion such that.

Abstract: This brushless motor according to the present invention is provided with: a tubular stator case; a stator core; a rotor; a plurality of teeth which are integrally formed on an inner peripheral surface of the stator core; a coil bobbin mounted between the mutually adjacent teeth, which has a winding portion around which a coil is wound; a lead wire; and a wiring substrate which relays a connection between the lead wire and the coil, wherein: the coil bobbin has flange portions; one of the flange portions which is located on the inward in the radial direction has an enlarged member which protrudes outward from the surface of the flange portion; a pair of terminals which is connected to the wiring substrate is provided on the enlarged portion so as to be located more inward than a tip of the tooth in the radial direction.

Abstract: When soldering is performed, heat transferred from through hole 6b is caused to bypass a mesh-like copper foil region between non-copper-foil regions and thus the transfer of heat to a solid pattern region around thermal land 13b is delayed. Signal wirings 8e, 8f and signal wirings 8g, 8 are formed along the arrangement directions of non-copper-foil regions 15b, 16b respectively keeping a predetermined spacing between them and disposed to overlap copper foil regions, thus ensuring a current return path by means of opposing ground layer 11.

Abstract: A brushless motor is provided with: a tubular stator case; a stator core; a rotor rotatably supported via a bearing inside the stator core; a bracket which closes an opening at one end of the stator case; a coil bobbin around which a coil is wound is mounted on an inner peripheral surface of the stator core; a lead wire which feeds power to the coil; and a wiring substrate which relays a connection between one end of the lead wire and the coil, wherein: a drawn-out hole is formed on the bracket at the position corresponding to the connection point of said one end of the lead wire and the wiring substrate such that the other end of the lead wire is drawn outward; and a harness guide is provided on a peripheral edge of the drawn-out hole such that the drawn lead wire is bent and fixed.

Abstract: A brushless motor according to the present invention is provided with a tubular stator case, a stator core fitted into the stator case, and a rotor rotatably supported via a bearing inside the stator core. The stator core includes a tubular yoke portion and a plurality of split cores which are detachably mounted on the tubular yoke portion. A plurality of commutating-pole teeth which extend radially inward are integrally formed on an inner peripheral surface of the tubular yoke portion at regular intervals in the peripheral direction of the tubular yoke portion; and a root portion of each of the commutating-pole teeth has inclined shoulders which are gradually enlarged radially outward.

Abstract: This brushless motor according to the present invention is provided with: a tubular stator case; a stator core; a rotore; a plurality of teeth which are integrally formed on an inner peripheral surface of the stator core; a coil bobbin mounted between the mutually adjacent teeth, which has a winding portion around which a coil is wound; a lead wire; and a wiring substrate which relays a connection between the lead wire and the coil, wherein: the coil bobbin has flange portions; one of the flange portions which is located on the inward in the radial direction has an enlarged member which protrudes outward from the surface of the flange portion; a pair of terminals which is connected to the wiring substrate is provided on the enlarged portion so as to be located more inward than a tip of the tooth in the radial direction.

Abstract: A brushless motor according to the present invention is provided with: a tubular stator case; a stator core; and a rotor. The stator core includes a tubular yoke portion and a plurality of split cores. A plurality of dovetail grooves are formed in an inner peripheral surface of the yoke portion; each split core has a coil bobbin which has a mounting hole so as to penetrate in a radial direction, and a split teeth which is mounted into the mounting hole of the coil bobbin. The coil bobbin has a winding portion, and flange portions, and a clearance portion into which a winding starting end of the coil is strayed from the winding portion is formed on the inside of the one of the flange portions by reducing the thickness of the flange portion such that.