Abstract: An inductor component includes a lamination of an insulating layer and a conductive layer. The insulating layer includes a base made of glass and inorganic particles dispersed in the base. Some of the inorganic particles partially project through the surface of the base into the conductive layer.

Abstract: A base plate is a portion of a housing of a disk driving device having a disk rotating with a rotation axis as a center, and is a cast product. The base plate has a bottom plate part and a peripheral wall part. The bottom plate part has a rectangular shape when viewed in an axial direction. The peripheral wall part extends from an outer peripheral edge of the bottom plate part toward a side of the axial direction to surround the periphery of the bottom plate part. A metal member embedded in the peripheral wall part is provided.

Abstract: A rotor assembly includes a shaft disposed along a central axis extending vertically, a tubular magnet disposed on a radially outer surface of the shaft, a lower spacer disposed axially below the magnet and fixed to the radially outer surface of the shaft, and a tubular magnet holder fixed to a radially outer surface of the magnet via an adhesive. At least a portion of an axially lower surface of the magnet holder is in contact with an axially upper surface of the lower spacer.

Abstract: A speed reducer includes a helical gear body including helical gears, a rotating shaft, a shaft holder, and a first washer disposed around the rotating shaft between the helical gear body and the shaft holder. The helical gears are disposed coaxially, are capable of rotating around the center axis, and have the same torsion angle. The shaft holder is opposed to an axial-direction end portion of the helical gear body in an axial direction via the first washer. At least one of a radially inner end portion and a radially outer end portion of the first washer includes a washer contact surface. One of the axial-direction end portion of the helical gear body and the shaft holder includes an opposed surface opposed to the washer contact surface at least in a circumferential direction.

Abstract: A motor includes a rotor, a stator, a circuit board, and a motor case. The rotor rotates around a central axis extending vertically. The stator is opposed to the rotor in a radial direction. The circuit board extends in a direction perpendicular to the central axis. In the motor case, the rotor, the stator, and the circuit board are enclosed. The circuit board includes a connector socket and a connector plug. The connector socket is fixed to the circuit board. The connector plug is fixed to a tip end of a lead wire extending outwardly of the motor case, and is connected to the connector socket downward from above the connector socket. A ceiling section of the motor case includes a projection extending downward. A lower end of the projection is opposed in an axial direction to at least a portion of an upper surface of the connector plug.

Abstract: A turntable for storage disk drive apparatuses includes a plate member made of a ferromagnetic material and a central resin member arranged at the center of the plate member and formed by injection-molding a resin. The central resin member includes a disk guide portion provided on an upper surface thereof to guide a central hole of a disk and a plurality of gate recess portions indented upwards from a lower surface of the central resin member. The gate recess portions include ceiling surfaces positioned higher than the plate member. The ceiling surfaces include a plurality of gate cut portions formed in an injection molding process.

Abstract: A turntable for storage disk drive apparatuses includes a plate member made of a ferromagnetic material and a central resin member arranged at the center of the plate member and formed by injection-molding a resin. The central resin member includes a disk guide portion provided on an upper surface thereof to guide a central hole of a disk and a plurality of gate recess portions indented upwards from a lower surface of the central resin member. The gate recess portions include ceiling surfaces positioned higher than the plate member. The ceiling surfaces include a plurality of gate cut portions formed in an injection molding process.