Abstract: According to one embodiment, a magnetic head includes a lower magnetic shield positioned at a media facing surface of the head, a lower sensor positioned above the lower magnetic shield, the lower sensor including a lower free layer, a middle magnetic shield positioned above the lower sensor at the media facing surface of the head, and a back side antiferromagnetic (AFM) layer positioned behind the lower free layer in an element height direction, the back side AFM layer being configured to provide magnetic stabilization for the middle magnetic shield. In another embodiment, a method includes forming a lower sensor including a lower free layer, forming a back side AFM layer behind the lower free layer in an element height direction, and forming a middle magnetic shield above the lower sensor, wherein the back side AFM layer is configured to provide magnetic stabilization for the middle magnetic shield.

Abstract: In one embodiment, a method for forming a magnetoresistive read head includes forming a fixed layer having a first ferromagnetic material that has a fixed direction of magnetization above a lower shield layer, forming a free layer having a second ferromagnetic material positioned above the fixed layer, the free layer having a non-fixed direction of magnetization, forming a first mask above the free layer, the first mask having a predetermined width based on a track width of a magnetic medium, etching the free layer down to the fixed layer using the first mask as a guide, wherein substantially none of the fixed layer is etched, and wherein the fixed layer extends beyond both sides of the free layer in a cross-track direction, and forming magnetic domain control films on both sides of the free layer in the cross-track direction, the magnetic domain control films including a soft magnetic material.

Abstract: A two-dimensional magnetic recording (TDMR) multi-sensor read head has three stacked sensors separated by magnetic shields. The lower sensor is the primary sensor that is always aligned with the target track. The middle sensor is spaced laterally from the lower sensor a distance substantially equal to the track pitch (TP). The upper sensor is aligned with the lower sensor. The spacing D between the lower and upper sensors is selected to be related to TP and a maximum skew angle, where the skew angle is the angle between a line orthogonal to the sensor and the data track that varies with radial position of the head. The read head is connected to circuitry that selects two of the three sensors to be the active sensors depending on the radial position of the head and thus the skew angle of the head.

Abstract: In one embodiment, a magnetic head includes at least one magnetoresistive (MR) element positioned at a media-facing surface of the magnetic head, a lower portion of the at least one MR element extending in an element height direction away from the media-facing surface of the magnetic head farther than an upper portion of the at least one MR element, at least one back wiring layer positioned behind the upper portion of the at least one MR element in the element height direction and above the lower portion of the at least one MR element, the at least one back wiring layer being configured to electrically communicate with the at least one MR element, and an upper wiring layer positioned above the at least one MR element at the media-facing surface of the magnetic head and extending in the element height direction away from the media-facing surface of the magnetic head.

Abstract: An oil pump includes a first spill passage formed on a side surface (60) of a pump chamber (58) to communicate a hydraulic pressure chamber (54) with a first high pressure discharge passage (68) when the entire hydraulic pressure chamber (54) is positioned between the first high pressure discharge passage (68) and a first low pressure discharge passage (70). Therefore, when the hydraulic pressure chamber (54) passes between the first high pressure discharge passage (68) and the first low pressure discharge passage (70), the hydraulic pressure inside the predetermined hydraulic pressure chamber (54) escapes to the first high pressure discharge passage (68) through a first spill passage (76), so a hydraulic pressure value inside the hydraulic pressure chamber (54) is maintained at the pressure value inside the first high pressure discharge passage (68).

Abstract: In one embodiment, a magnetic head includes a lower shield layer positioned at a media-facing surface of the magnetic head, at least two magnetoresistive (MR) elements positioned above the lower shield layer, each MR element extending in an element height direction away from the media-facing surface of the magnetic head, back wiring layers positioned above at least one lower layer of each of the MR elements at a position away from the media-facing surface of the magnetic head in the element height direction, wherein the back wiring layers are configured to electrically communicate with the MR elements and configured to separately extract signals from each MR element during a read operation, and an upper shield layer positioned above the MR elements that is configured to electrically communicate with the MR elements.

Abstract: A motor controller controls a motor including a rotor and a stator opposed to the rotor. The motor controller includes an electric current driving unit which drives the motor with an axis electric current value defined in a rotating coordinate system defined with respect to a control angle that is a rotation angle for control, a control angle computing unit which computes a current value of the control angle by adding an addition angle to a previous value of the control angle in each predetermined computing cycle, and an addition angle computing unit which computes the addition angle according to a torque to be generated by the motor or a response of the motor to the axis electric current value.

Abstract: A vehicular power transmitting system including an oil pump constructed to sufficiently reduce a required drive torque. A high-pressure-port discharge amount of first and second high-pressure passages of the oil pump is determined such that an amount of consumption of working oil of relatively high pressure can be afforded only by the high-pressure-port discharge amount, during steady-state running of a vehicle in which engine speed is not lower than a predetermined threshold value corresponding to a predetermined lowest target input shaft speed of a continuously variable transmission for its shifting control. The pressure of the working oil discharged from first and second low-pressure discharge passages is kept at a predetermined low level, and the required drive torque of the oil pump is sufficiently reduced.

Abstract: According to one embodiment, a method for forming a magnetic head having a current perpendicular to plan (CPP) sensor, includes forming a magnetoresistance effect film, performing a subtractive process for defining a back edge and a height length of the magnetoresistance effect film, depositing an insulating film adjacent the back edge of the magnetoresistance effect film, and ion milling at least an upper surface of a first portion of the insulating film located closest to the magnetoresistance effect film, where the upper surface of the first portion of the insulating film lies substantially along a plane. After the ion milling, the insulating film has no overlap of the insulating film above and/or onto the magnetoresistance effect film and no bulging in a region immediately adjacent a boundary between the insulating film and the magnetoresistance effect film.

Abstract: A stacked ring 2 that forms a transmission belt is formed by stacking a plurality of elastically deformable ring materials 201 to 206 together. Shot peening is performed on surfaces of the ring materials 201 to 203 of the first layer as the innermost layer to the third layer so that a residual compressive stress in the ring materials 201 to 203 is higher than that in the ring materials 204 to 206 of the fourth to sixth layers. The outer circumferential length of the ring material 203 of the third layer is longer than the inner circumferential length of the ring material 204 of the fourth layer, and the ring material 203 of the third layer is press-fit into the ring material 204 of the fourth layer.

Abstract: Minute elements are formed while a photo deviation is suppressed between a spin torque oscillator and a main pole and damage is prevented on the ends of the spin torque oscillator in microwave-assisted recording. A magnetic recording head used for microwave-assisted recording includes: a main pole; a spin torque oscillator that is disposed on the main pole and includes a magnetization high-speed rotation layer for rotating magnetization at a high speed by a spin torque; a protective film that is disposed in the track width direction of the spin torque oscillator; an insulating film formed over the wall surfaces of the main pole and the wall surfaces of the protective film; and a magnetic film formed on the insulating film so as to cover at least the main pole.

Abstract: A vehicular power transmitting system including an oil pump constructed to sufficiently reduce a required drive torque. A high-pressure-port discharge amount of first and second high-pressure passages of the oil pump is determined such that an amount of consumption of working oil of relatively high pressure can be afforded only by the high-pressure-port discharge amount, during steady-state running of a vehicle in which engine speed is not lower than a predetermined threshold value corresponding to a predetermined lowest target input shaft speed of a continuously variable transmission for its shifting control. The pressure of the working oil discharged from first and second low-pressure discharge passages is kept at a predetermined low level, and the required drive torque of the oil pump is sufficiently reduced.

Abstract: A lubrication monitoring device monitors a lubricating condition of a lubricator feeding an oil droplet at a predetermined time interval by means of a discharge nozzle having a nozzle orifice. The lubrication monitoring device comprises: a pair of electrodes disposed in the proximity of the nozzle orifice; a capacitance detecting portion for detecting the variation of capacitance between the pair of electrodes, the capacitance varying in conjunction with the varying amount of oil fed from the nozzle orifice to space between the pair of electrodes; and a determination portion for determining whether the oil droplet is fed at the predetermined time interval or not, the determination made based on the detection result supplied from the capacitance detecting portion.

Abstract: An oil pump includes a first spill passage formed on a side surface (60) of a pump chamber (58) to communicate a hydraulic pressure chamber (54) with a first high pressure discharge passage (68) when the entire hydraulic pressure chamber (54) is positioned between the first high pressure discharge passage (68) and a first low pressure discharge passage (70). Therefore, when the hydraulic pressure chamber (54) passes between the first high pressure discharge passage (68) and the first low pressure discharge passage (70), the hydraulic pressure inside the predetermined hydraulic pressure chamber (54) escapes to the first high pressure discharge passage (68) through a first spill passage (76), so a hydraulic pressure value inside the hydraulic pressure chamber (54) is maintained at the pressure value inside the first high pressure discharge passage (68).

Abstract: In one embodiment, a magnetic head includes a magnetoresistive free layer, wherein a width of the free layer nearest an air bearing surface (ABS) is less than a width of the free layer at a point away from the ABS in a track width direction, with the magnetic head being configured to pass a sense current in a direction perpendicular to a plane of deposition of the free layer. In another embodiment, a method includes forming a magnetoresistive film above a shield, forming a masking layer above the magnetoresistive film, patterning the masking layer such that it exposes portions of the magnetoresistive film, wherein the masking layer defines an area which is narrow near an area that forms an ABS side of a free layer and wider at an area away from the ABS, and removing the exposed portions of the magnetoresistive film to form the free layer.

Abstract: An endless metal belt including a ring formed by laminating endless metal plates; and multiple elements continuously attached to the ring. Each of the elements has a body, a head connected to the body by a pillar, and slots formed between the body and the head on left and right sides of the pillar, respectively, for receiving the ring. The elements satisfy the equations (h/t)<1 and (S/h)>40, where h is a width of the slots, t is a plate thickness of the elements, and S is an area of the head.

Abstract: Minute elements are formed while a photo deviation is suppressed between a spin torque oscillator and a main pole and damage is prevented on the ends of the spin torque oscillator in microwave-assisted recording. A magnetic recording head used for microwave-assisted recording includes: a main pole; a spin torque oscillator that is disposed on the main pole and includes a magnetization high-speed rotation layer for rotating magnetization at a high speed by a spin torque; a protective film that is disposed in the track width direction of the spin torque oscillator; an insulating film formed over the wall surfaces of the main pole and the wall surfaces of the protective film; and a magnetic film formed on the insulating film so as to cover at least the main pole.

Abstract: An electronic device includes an operating unit, a behavioral information acquiring unit to acquire behavioral information of an operator as triggered by operation of the operating unit, a matching unit to match input matching information input by the operator against registered matching information, a recording unit to be recorded with the behavioral information, and a recording control unit to record, when the matching unit determines that the input matching information is not coincident with the registered matching information, the behavioral information in the recording unit.

Abstract: A method for manufacturing a belt for a continuously variable transmission (CVT) in which multiple V blocks of a plurality of types having different thicknesses are attached to an endless body. The method includes forming a plurality of V block groups respectively having a different ratio of different types of V blocks; and forming a series of V blocks by attaching a plurality of V blocks to the endless belt to provide said plurality of V block groups. The V block groups have different ratios of the plurality of types of V blocks to provide a belt whose noise level is low and dispersed.

Abstract: A stacked ring 2 that forms a transmission belt is formed by stacking a plurality of elastically deformable ring materials 201 to 206 together. Shot peening is performed on surfaces of the ring materials 201 to 203 of the first layer as the innermost layer to the third layer so that a residual compressive stress in the ring materials 201 to 203 is higher than that in the ring materials 204 to 206 of the fourth to sixth layers. The outer circumferential length of the ring material 203 of the third layer is longer than the inner circumferential length of the ring material 204 of the fourth layer, and the ring material 203 of the third layer is press-fit into the ring material 204 of the fourth layer.