Abstract: A magnetic head includes a coil, a main pole and a return path section. The return path section is located on the trailing side relative to the main pole so that a space is defined between the main pole and itself. The coil includes a first winding portion and a second winding portion connected in series. The first winding portion extends to pass through the aforementioned space, and extends once around the entire perimeter of the main pole as viewed from the medium facing surface. The second winding portion does not pass through the aforementioned space, and surrounds only a part of the entire perimeter of the main pole as viewed from the medium facing surface.

Abstract: A magnetic head includes a medium facing surface, a coil, a main pole, a write shield, and a first and a second return path section. The first return path section is located on the leading side of the main pole. The coil includes a specific coil element passing through a space defined by main pole, a gap section, write shield and first return path section. The main pole has a bottom end including a first portion and a second portion, the second portion being farther from medium facing surface than is the first portion. The specific coil element has a rear end farthest from medium facing surface. The distance from medium facing surface to rear end of the specific coil element is smaller than or equal to the distance from the medium facing surface to the boundary between the first portion and the second portion.

Abstract: A magnetic head for perpendicular magnetic recording includes a read head unit, a write head unit disposed forward of the read head unit along the direction of travel of a recording medium, a heater that generates heat for causing the medium facing surface to protrude in part, an expansion layer that makes part of the medium facing surface protrude, and a sensor that detects contact of the part of the medium facing surface with the recording medium. The write head unit includes a main pole, a write shield, and a return path section. The return path section includes a yoke layer located backward of the main pole along the direction of travel of the recording medium, a first coupling part that couples the yoke layer and the write shield to each other, and a second coupling part that is located away from the medium facing surface and couples the yoke layer and the main pole to each other.

Abstract: In one embodiment, a generator includes an alternating current exciter to output first, second and third alternating currents respectively having first, second and third phases, and a rotary rectifier to convert the first, second and third alternating currents into first, second and third direct currents, respectively. The generator further includes a rotating shaft on which the exciter and the rectifier are mounted, and plural conductors mounted on the shaft, and including one or more first conductors, one or more second conductors and one or more third conductors to respectively supply the first, second and third alternating currents from the exciter to the rectifier. The plural conductors include one or more conductor groups in each of which two or more conductors are collectively arranged, and each of the conductor groups includes the two or more conductors arranged to cancel a magnetic field around each conductor in the same group.

Abstract: A magnetic head includes a coil, a main pole and a return path section. The return path section is located on the trailing side relative to the main pole so that a space is defined between the main pole and itself. The coil includes a first winding portion and a second winding portion connected in series. The first winding portion extends to pass through the aforementioned space, and extends once around the entire perimeter of the main pole as viewed from the medium facing surface. The second winding portion does not pass through the aforementioned space, and surrounds only a part of the entire perimeter of the main pole as viewed from the medium facing surface.

Abstract: A composite material structure reinforced against stress concentration in peripheral edge portions of holes and enabled to be reduced in weight. A wing (1) is formed in a box structure. A lower surface outer plate (3) of the wing (1) includes: a center section (3b) made of metal extending in one direction and having access holes (5) formed therein; a front section (3a); and a rear section (3c) made of fiber reinforced plastics extending in the one direction and connected to both side portions of the center section (3b). As the metal used for the center section (3b), a titanium alloy or an aluminum alloy is suitable.

Abstract: According to one embodiment, a maintenance method includes providing the electric generator with leg plates for placing the electric generator on a floor face of a foundation pedestal, forming a bottom portion of the electric generator to have a bottom plane capable of supporting a weight of the electric generator, and forming a gap between the bottom plane of the electric generator and an opposing floor face of the foundation pedestal; and providing the carrier device in the gap, and lifting up and horizontally moving the electric generator by the carrier device, and thereafter doing maintenance of the electric generator.

Abstract: A magnetic head includes a coil, a main pole, a write shield, a gap section, and a return path section. The main pole has a top surface including an inclined portion and a flat portion. The coil includes a specific coil element. The specific coil element has a front end portion, and an inclined surface contiguous with the front end portion. The write shield includes a top shield layer located on the front side in the direction of travel of a recording medium relative to the main pole, and located closer to a medium facing surface than the specific coil element. The top shield layer is located on the rear side in the direction of travel of the recording medium relative to an imaginary plane including the inclined surface of the specific coil element.

Abstract: A magnetic head includes a coil, a main pole and a return path section. The return path section is located on the trailing side relative to the main pole so that a space is defined between the main pole and itself. The coil includes a first winding portion and a second winding portion connected in series. The first winding portion extends to pass through the aforementioned space, and extends once around the entire perimeter of the main pole as viewed from the medium facing surface. The second winding portion does not pass through the aforementioned space, and surrounds only a part of the entire perimeter of the main pole as viewed from the medium facing surface.

Abstract: Provided is a semiconductor device that includes a semiconductor chip, and a packaging substrate on which the semiconductor chip is mounted. The semiconductor chip includes a chip body and a plurality of solder-including electrodes that are provided on an element-formation surface of the chip body. The packaging substrate includes a substrate body, and a plurality of wirings and a solder resist layer that are provided on a front surface of the substrate body. The solder resist layer is provided as a continuous layer on the front surface of the substrate body and the plurality of wirings, and has an aperture on each of the plurality of wirings. The aperture has a planar shape elongated in a lengthwise direction of the wiring inside the aperture, with a length of the aperture adjusted in accordance with a thermal expansion coefficient of the packaging substrate.

Abstract: A semiconductor chip includes a chip body and a plurality of solder-including electrodes provided on an element-formation surface of the chip body. A packaging substrate includes a substrate body, and one or more conductive layers and a solder resist layer that are provided on a front surface of the substrate body. The solder resist layer is provided as a continuous layer on the front surface of the substrate body and the one or more conductive layers, and has one or more apertures on each of the one or more conductive layers. The plurality of solder-including electrodes include two or more first electrodes having a same function other than a function of power supply. The one or more conductive layers include a continuous first conductive layer. The two or more first electrodes are connected to the continuous first conductive layer. The one or more apertures are confronted with the respective two or more first electrodes.

Abstract: A semiconductor chip includes a chip body and a plurality of solder-including electrodes provided on an element-formation surface of the chip body. A packaging substrate includes a substrate body, and a plurality of wirings and a solder resist layer that are provided on a front surface of the substrate body. The plurality of solder-including electrodes include a plurality of first electrodes and a plurality of second electrodes. The plurality of first electrodes supply a first electric potential, and the plurality of second electrodes supply a second electric potential different from the first electric potential. The plurality of first electrodes and the plurality of second electrodes are disposed alternately in both a row direction and a column direction, in a central part of the chip body. The plurality of wirings include a plurality of first wirings and a plurality of second wirings.

Abstract: A magnetic head includes a coil, a main pole, a write shield, and a return path section. The coil includes a coil element located on the trailing side of the main pole. The coil element has a front end face facing toward the medium facing surface. The return path section includes a first portion, a second portion, and an intermediate film interposed between the first portion and the second portion. Part of the first portion is interposed between the medium facing surface and the front end face of the coil element. Part of the second portion is interposed between the first portion and the front end face of the coil element.

Abstract: A magnetic head includes a coil, a main pole, a write shield, and a return path section. The coil includes a coil element located on the trailing side of the main pole. The coil element has a front end face facing toward the medium facing surface. The return path section includes a first portion, a second portion, and an intermediate film interposed between the first portion and the second portion. Part of the first portion is interposed between the medium facing surface and the front end face of the coil element. Part of the second portion is interposed between the first portion and the front end face of the coil element.

Abstract: A magnetic head includes a coil, a main pole and a return path section. The return path section is located on the trailing side relative to the main pole so that a space is defined between the main pole and itself. The coil includes a first winding portion and a second winding portion connected in series. The first winding portion extends to pass through the aforementioned space, and extends once around the entire perimeter of the main pole as viewed from the medium facing surface. The second winding portion does not pass through the aforementioned space, and surrounds only a part of the entire perimeter of the main pole as viewed from the medium facing surface.

Abstract: A magnetic head includes a coil, a main pole, a write shield and first and second yokes. The first and second yokes are connected to the write shield. The coil includes a main coil portion for driving the main pole, a first sub-coil portion for driving the first yoke, and a second sub-coil portion for driving the second yoke. A magnetic field produced in the main pole by the main coil portion and a magnetic field produced in each of the first and second yokes by the first and second sub-coil portions are in directions opposite to each other.

Abstract: In an information processing system, plural information processing devices are mutually connected by an SMP connection mechanism. Each of the information processing devices includes a control device (FPGA) having a synchronous register that shows the state of a control signal of the information processing device and an internode communication access control unit that transmits first synchronous packets with the content of the synchronous register reflected to the other information processing devices at predetermined time intervals, receives second synchronous packets from the other information processing devices, and reflects the content of the received second synchronous packets on the synchronous register.

Abstract: At the time of automated driving, a plurality of vehicle running paths which show changes along with time of a speed and advancing direction of the vehicle are generated based on the information on the surroundings of the vehicle which is detected by an external sensor. At the time of a manual driving mode, the running paths of the vehicle at the different driving scenes are stored as specific vehicle running paths which show the driving characteristics of the driver. At the time of automated driving, when the driving scene becomes a driving scene for which the specific vehicle running path is stored, a vehicle running path close to the stored specific vehicle running path is selected from among the plurality of generated vehicle running paths, and the vehicle is automatically driven along this selected vehicle running path.

Abstract: A magnetic write head has a plated coil with narrow pitch and is suitable for writing at high frequencies on magnetic media with high coercivity. The narrow pitch is obtained without such disadvantages as overplating that has adversely affected prior art attempts to produce such narrow pitches. The process that produces the magnetic write head is characterized by an RIE plasma etch using O2/N2 to etch plating trenches into a baked layer of photoresist with the ratio of gases being 5/45 sccm so that a dilute O2 concentration does not create unwanted side etching of the plating trenches. In addition, a Cu seed layer is coated with an insulating layer of Al2O3 which redeposits on the trench sidewalls to inhibit redeposition of any Cu from the seed layer and prevent outward growth of the plated Cu that would result in overplating.

Abstract: A thermally-assisted magnetic recording head includes a main pole, a plasmon generator, and first and second side shields. The main pole has a front end face located in the medium facing surface. The plasmon generator has a near-field light generating surface located in the medium facing surface. The front end face of the main pole includes a first end face portion, and a second end face portion greater in width than the first end face portion. The first and second side shields have first and second side shield end faces located on opposite sides of at least part of the near-field light generating surface and at least part of the first end face portion in the track width direction.