Abstract: A thin film magnetic head fabricated in accordance with a thin film manufacturing method comprising a front end of an upper core layer formed on a magnetic gap layer, and a rear end of the upper core layer formed on an interlayer insulating layer for insulating a conductor coil layer to be coupled with the front end of the upper core layer, and a method for manufacturing a thin film magnetic head fabricated by a thin film manufacturing method comprising the steps of forming a lower core layer on a substrate made of a nonmagnetic material, forming a magnetic gap layer on the lower core layer, forming a front end of an upper core layer on the magnetic gap layer, forming an interlayer insulating layer and a conductor coil layer on the magnetic gap layer, and forming a rear end of the upper core layer coupled with the front end of the upper core layer and the lower core layer on the interlayer insulating layer for insulating the conductor coil layer.

Abstract: A main pole exciting type magnetic head for vertical magnetic recording, including a lower slider formed of a magnetic material, a winding core formed of a magnetic material, a substrate formed of a non-magnetic material and disposed so that one end face thereof is positioned on an upper surface of the winding core, a main pole film formed on one end face of the substrate, and an upper slider formed of a magnetic material, the upper slider being opposed to the lower slider through a vertical magnetic recording medium; as well as a method of producing such magnetic head.

Abstract: In a magnetic head having front cores and a rear core, the front cores are held between leg portions of the U-shaped rear core owing to the resiliency of the rear core.

Abstract: A magnetic head for perpendicular magnetic recording is disclosed which is composed of a substrate made of a non-magnetic material, a main pole film formed on the side surface of the substrate, a protective film for covering the main pole film, a winding core on which the substrate is pasted such that the main pole film is situated above the winding core, and a slider to which the winding core is secured through an adhesive.

Abstract: A magnetic drum apparatus has a rotatable magnetic drum, a carriage adjacent the drum movable on a guide shaft along the drum axis, a magnetic head and slider assembly supported on the carriage, and a drive motor for the drum mounted in the inner chamber of the drum. The carriage is rotatable on a guide pin in a direction away from the surface of the drum when it is moved to an axially retracted position.

Abstract: A magnetic head comprising a recording/reproducing core is formed with a recording/reproducing gap at an intermediate portion of the tip end portion thereof, and a pair of erasing cores are arranged on either side of the tip end portion to sandwich the recording/reproducing core. The magnetic head is characterized in that a part of the tip end portion of the recording/reproducing core is made thinner than the other portion thereof and that the pair of erasing cores are arranged at the opposite sides of the thin portion.

Abstract: Disclosed in a high-performance electromagnetic pickup cartridge with little distortion, comprising a stylus attached to the end of a cantilevered arm, a disk type armature magnetized in its axial direction and secured to the arm, and bar type magnetic core elements disposed in the vicinity of the armature so that they are at right angles to the axis of the cantilevered arm and correspond to each channel of a stereophonic record. When the armature is vibrated, an output signal is generated in respective coils wound around the core elements. Because of the above-described construction, the core elements need only have a bar-shaped configuration without the necessity for opposing faces between which a magnet or an iron piece would otherwise have to be inserted.

Abstract: In a head holding mechanism of a magnetic disk device wherein a pair of heads come into contact with both the surfaces of a magnetic disk and are respectively mounted through leaf springs, the leaf springs are embedded in respective vibration absorbers so that resonance of the leaf springs is prevented and the heads follow any warp of the magnetic disk well.

Abstract: A magnetic head characterized in that a nonmagnetic material of an erasing core chip in which two erasing cores are coupled by the nonmagnetic material is provided with a groove portion and that a recording/reproducing core is inserted in the groove portion. The magnetic head can be fabricated by a method characterized by comprising the step of providing first and second orthogonal grooves in a face plate, the step of providing the groove portion in the nonmagnetic material of the erasing core chip, the step of inserting the recording/reproducing core in the first groove, inserting the erasing core chip in the second groove and inserting the recording/reproducing core in the groove portion of the nonmagnetic material, and the step of fixing the face plate, the recording/reproducing core and the erasing core chip with glass or the like and polishing a front surface of the face plate.