Abstract: According to embodiments of the present invention, a first layer of electrically conductive material may be disposed in a recess in a micro-electromechanical system (MEMS) base. An electrically charged gel network may be disposed in the recess on the first layer of electrically conductive material. A second layer of electrically conductive material may be disposed in the recess on the cross-linked co-polymer gel network. A functionalizer may be disposed on the first and the second layers of electrically conductive material.

Abstract: An optical node is configured to enable time-division distribution of pump light for effectively utilizing pump power. The optical node is provided with an excitation light source unit for Raman amplification, outputting Raman excitation light of a plurality of wavelengths; a control unit outputting the Raman excitation light of the plurality of wavelengths, wavelength by wavelength on a time division basis; and a Raman amplifier distributing and feeding the Raman excitation light of the plurality of wavelengths, wavelength by wavelength on a time division basis, in the opposite direction to the signal light transmission direction. In each receiving port, a period of the Raman excitation light being output wavelength by wavelength on a time division basis is set shorter than a signal light response time in the Raman amplifier to the Raman excitation light.

Abstract: An optical signal processing method is disclosed that enables improvements of a signal to noise ratio of an optical signal and reduction of size and power of an optical signal processing device. The optical signal processing method includes steps of dividing an input optical signal into a first polarization optical component and a second polarization optical component orthogonal to the first polarization optical component; supplying the first polarization optical component to a first gain device whose gain saturates at a first value; supplying the second polarization optical component to a second gain device whose gain saturates at a second value less than the first value; combining output light from the first gain device and output light from the second gain device; and outputting the combined optical signal through a polarization element.

Abstract: An amplification medium simulation apparatus comprises a basic data retaining unit 21, an input signal beam information retaining unit 22, and a simulation executing unit 31 approximating and calculating an output signal beam power at each signal beam wavelength outputted from the amplification medium involving a fluctuation in ion population at the metastable energy level in the amplification medium due to input of the input signal beam, by using contents retained in the basic data retaining unit 21 and the input signal beam information retaining unit 22, and outputting a result of calculation as a result of simulation of performance of the amplification medium.

Abstract: An optical filter includes a transparent substrate, a first film stack and a second film stack. The first and second film stacks each includes a number of high refractive index layers and a number of low refractive index layers alternately stacked one on another. The first film stack is defined as (HL)7(0.76H0.76L)6, and the second film stack is defined as 0.5(HL)(1.3H1.3L)9(HL)8, wherein, H represents a high refractive index layer having a base optical thickness equal to one fourth of a first reference wavelength associated with the optical filter, L represents a low refractive index layer having a base optical thickness equal to one fourth of a first reference wavelength associated with the optical filter, the expression enclosed in each parenthesis represents a filter cavity, and the superscript represents the number of repetition of the expression enclosed in that parenthesis.

Abstract: An arrangement in the illumination beam path of a laser scanning microscope, comprising a mirror which can be introduced into the beam path for coupling in at least one additional wavelength, and a method for the operation of a laser scanning microscope with a mirror which can be swiveled in rapidly for coupling at least one additional wavelength into the illumination beam path, wherein the swiveling process is synchronized with the illumination control by a control unit in such a way that at least one additional wavelength is coupled into the illumination beam path when the mirror is swiveled out.

Abstract: A laser scanning microscope comprises at least one selectively switchable micro-mirror arrangement (DMD) in the illumination beam path and/or detection beam path which is used for the wavelength selection of dispersively divided illumination and/or object light such as reflection, fluorescence.

Abstract: A purpose of the present invention is to provide a simple configuration for bonding a lenticular lens sheet, a front sheet, and light diffusion layers together to reduce cost. To accomplish the above purpose, the present invention comprises: a lenticular lens sheet (20); a front sheet (30); a first adhesive layer (35) for bonding the lenticular lens sheet (20) and the front sheet (30) together, the first adhesive layer (35) being disposed between the lenticular lens sheet (20) and a light incident side of the front sheet (30); an AR film (40); and a second adhesive layer (36) for bonding the front sheet (30) and the AR film (40) together, the second adhesive layer (36) being disposed between a light exit side of the front sheet (30) and the AR film (40); wherein light diffusion materials are spread in the first and second adhesive layers to add a light diffusion function to the layers.

Abstract: A article having a micro-sized shape being formed on the surface of the article by pressing a die onto the surface, wherein the elastic modulus of the article at room temperature is in the range of 1–4 GPa, the thickness of the article after forming is equal to 0.1 mm or more and 20 mm or less and the aspect ratio of the micro-sized shape is equal to 1 or more. A forming method to produce an article comprising the steps of setting the temperature of a die having a micro sized shape to be equal or higher than the glass transitional temperature of material having an elastic modulus of 1 to 4 (GPa) pressing the die to the material to transfer the micro sized shape to the material, and cooling the die having the micro sized shape.

Abstract: Provided is an antireflection film comprising a transparent support, at least one high refractive index layer having a refractive index higher by 0.05 or greater but not greater than 1.5 than that of the transparent support and a low refractive index layer having a refractive index lower by 0.05 or greater but not greater than 2.0 than that of the high refractive index layer, wherein the high refractive index layer contains matting agent particles having an average particle size of 0.3 ?m or greater but not greater than 20 ?m; and the film has a haze value of 10% or less. This antireflection film has a low reflectance, is clear, has a surface less tinged with white and has reduced color due to interference, so that it is suitably used for image display devices such cathode ray tube display device (CRT), plasma display panel (PDP) and liquid crystal display (LCD). The film is also used for a polarizing plate.

Abstract: An indium tin oxide layer is formed on a glass substrate, and then a silicon nitride layer, an amorphous silicon layer and an n-type silicon layer are sequentially formed on the indium tin oxide layer to serve as a color filter. Thicknesses and processing conditions of the above layers are adjustable for providing various color filters, such as black matrixes, reflective red color filters, reflective green color filters, and reflective blue color filters.

Abstract: Designs of multiplexing/demultiplexing modules configured for N channels are disclosed. One of the features in the designs is to provide at least one concave mirror for compenstating filter tilting errors. The concave mirrors is placed where an incident traveling distance of a light beam is substantially similar or equal to the reflected traveling distance of the beam such that the filter tilting errors successively introduced over a number of optical filters can be successively reduced, compensated or removed over a subsequent number of optical filters as the light beams travels.

Abstract: A compact illumination system that is suitable for, e.g., projection systems, includes a plurality of light emitting diodes that are aligned along the same axis. The illumination system includes mirrors and a filter system for combining the light emitted by the different light emitting diodes. The light emitting diodes may be mounted within the same plane, e.g., on the same heatsink, which simplifies assembly and alignment of the system. Moreover, a collimator system with integrally formed refractive and/or reflective collimators, may be used. The use of an integrally formed collimator system advantageously reduces the number of piece parts and simplifies assembly.

Abstract: A method of randomizing elements into a random pattern on a surface so the random pattern of elements substantially entirely consumes a region of the surface includes choosing an overlap distance and creating an initial pattern of elements that substantially entirely consumes a region of the surface, wherein neighboring elements overlap by the overlap distance. The method also includes choosing a maximum displacement distance, and displacing the elements by random displacement distances from their positions in the initial pattern, the random displacement distances being less than the maximum displacement distance. Moreover, a signed difference in displacement between two neighboring elements is not greater than the overlap distance. An apparatus including the elements is also disclosed.

Abstract: Described in this application is a method of making a continuous lenticular image label web and a process for making a plurality of lenticular labels using a continuous lenticular image label web. In addition, a continuous lenticular image label web is described and detailed. Several advantages accrue from the methods described, including reduced time and cost to manufacture lenticular image labels. Advantageously, on-serting of lenticular labels is not required.

Abstract: This invention discloses a reflective illumination system for supplying an optical radiation beam along a folded path for illuminating a planar object. The system includes a radiation source, and two facing parabolic dish-shaped arrays of parabolic or dished reflectors. Divergent light received from the light source incident on a first of the arrays is reflected as a larger collimated beam comprising plural separated sub-beams. Each of the reflectors or facets from the first array directs one of the sub-beams to a facet on the second array. The second array reflects the light it receives with a substantially uniform intensity onto a rectangular target location.

Abstract: A compact zoom lens system includes, from the object side to the image side, a negative first lens group (1), a positive second lens group (2), a positive third lens group (3) and a positive fourth lens group (4). The first lens group is stationary, and both the second and third lens groups are movable for effecting focal length change. The fourth lens group is also movable to compensate for image plane shift due to focal length change and thereby maintain the position of the image plane. The compact zoom lens system has a significantly reduced lens count and thus has an overall length of only 20 mm while achieving an approximately 3× zoom ratio. Sufficient back focal length is ensured even for such a short overall length. By employing aspheric lenses (10, 20, 301, 31, 41) for aberration correction, a high level of optical performance can be ensured.

Abstract: Providing a compact zoom lens system having high optical performance suitable for an electronic imaging device with a large number of pixels. The zoom lens system includes, in order from an object, a first lens group having negative refractive power, a second lens group having positive refractive power, and a third lens group having positive refractive power. When zooming from a wide-angle end state to a telephoto end state, the first lens group and the second lens group are moved such that a distance between the first lens group and the second lens group decreases, and a distance between the second lens group and the third lens group increases. The second lens group is composed of at least two positive lens elements and one negative lens element. At least one positive lens element and the negative lens element in the second lens group satisfy given conditional expressions.

Abstract: A zoom optical system includes a function of preventing blurring of an image due to movements, such as shaking of the zoom optical system, by moving a lens element of the third lens group, in order from the object side, of four lens groups in a direction that is perpendicular to the optical axis in order to correct for movements of the zoom optical system that would otherwise create a blurred image. The second lens group from the object side has negative refractive power and the other three lens groups have positive refractive power. The second and fourth lens groups move along the optical axis during zooming. The zoom optical system satisfies certain conditions related to the configuration of the lens elements and lens groups of the zoom optical system in order to prevent blurring and to provide a compact zoom optical system having excellent correction of aberrations.

Abstract: An image taking optical system which comprises, in order from an object side, a first lens unit having a negative refractive power, a second lens unit having a positive refractive power, and a third lens unit having a negative refractive power, wherein the second lens unit moves toward the object side so that a space between the first lens unit and the second lens unit decreases, and the third lens unit moves so that a space between the second lens unit and the third lens unit changes, in a case where zooming is performed from a wide-angle end to a telephoto end, the first lens unit includes at least one lens, among which there exists only one lens that has a negative refractive power, and the second lens unit includes at least one positive lens and at least one negative lens.

Abstract: A lens-barrel cam mechanism includes first and second ring members; and cam grooves and cam followers formed on the first and second ring members. A single groove/follower set, including one cam groove and one cam follower, and a groove/follower group, including front and rear groove/follower sets at different positions in the optical axis direction, are at different positions single groove/follower set intersects those of the groove/follower group, and condition (a) and/or (b) are satisfied: (a) the cam groove of the single groove/follower set is wider than that of the groove/follower group, and (b) an interval between the cam groove of the single groove/follower set and that of the front groove/follower set and an interval between the cam groove of the single groove/follower set and that of the rear groove/follower set in the circumferential direction are different.

Abstract: Provided is a compact optical element that secures an optical path length and improves manufacturing precision economically. The optical element includes a transparent member having a first and second refracting surface, and reflecting surfaces. Light entering the transparent member from the first refracting surface is reflected by the reflecting surfaces to the second refracting surface. An optical path from the first to second refracting surface crosses itself inside the transparent member seen from a direction perpendicular to light entering the first refracting surface and exiting the second refracting surface. The transparent member guides the incident light from the first to the second refracting surface while reflecting the light alternately by at least one first and one second reflecting surface is in a first and second region respectively. The first and second regions and, respectively, are on opposite sides of a plane passing through the transparent member taken as a boundary.

Abstract: A lens system (46) for a digital camera consecutively includes a first lens element (20), a second lens element (30), and a third lens element (40). The first lens element is biconvex and has a first aspheric surface (22) and an opposite second aspheric surface (24). The second lens element is concavo-convex and includes a third aspheric surface (32) and an opposite fourth aspheric surface (34). The third lens element convexo-concave and has a fifth aspheric surface (42) and an opposite sixth aspheric surface (44). The first lens element is made of glass, and the second lens element and the third lens are made of optical plastic.

Abstract: An image pick-up lens system includes an aperture stop (10), a biconvex first lens (20), and a meniscus-shaped second lens (30) having a concave surface on a side of an object. The aperture stop, the first lens and the second lens are aligned in that order from the object side to an image side. Each of the lenses has at least one aspheric surface, and both lenses are made from a same plastic or a resin. The system satisfies the following condition: (1) 1<T/f<1.7, wherein f is a focal length of the system, and T is a length from the aperture stop to an image pick-up surface of the image side. The first condition (1) limits the total length of the system in order to provide compactness. The system also satisfies other conditions (2)–(5) as disclosed, in order to provide compactness and cost-effectiveness and to correct fundamental aberrations.

Abstract: An interferometric profiler includes an opening adapted to receive a removable compensating element in the reference arm. The compensating element is mounted on a holder adapted for slidable engagement within the opening. A retaining mechanism keeps the holder firmly in place in the opening. The reference mirror of the profiler is mounted on a slidable stage urged away from the compensating element by a spring-loaded mechanism. A knob is provided to manually push the stage inward to its operating position proximate to the compensating element. A stop ensures that the travel of the stage is limited to a safe distance from the compensating element and a lock is provided to releasably hold the stage in place during use. Multiple objectives with different magnifications may be coupled to the module for alternative use according to the needs of particular applications. An illumination module may also be coupled to the reference-arm module.

Abstract: A positioning structure having a positioning projection on attaching surface is provided. The attaching surface is inclined within an acute angle with respect to a direction orthogonal to an opening and closing direction of a mold for forming the surface. The positioning projection formed on the attaching surface is molded simultaneously by the metallic molding into a truncated right circular conical shape with a tapered trapezoid section that has a tapered surface inclined within an acute angle with respect to a direction perpendicular to the attaching surface on the outer circumference, and has a tapered front end extending in the perpendicular direction. When the angle of inclination of the attaching surface with respect to the direction orthogonal to the opening and closing direction of the mold is defined as “?”, and the angle of inclination of the tapered surface with respect to the direction perpendicular to the attaching surface is defined as “?”, ???>0 is satisfied.

Abstract: A digital camera is constructed with multiple lenses mounted in a pair of tubular elements which are nested together for relative axial movement. Movement is provided by piezoelectric actuators mounted externally to a support tube on flexible printed circuit board elements. Each lens tube is provided with a drive rail which extends at least partially over the length of the lens tube and projects radially outward from the periphery of each of the tubes. The rails are accessible to the engagement pads of the piezoelectric actuators to allow the transmission of drive forces to each of the tubes.

Abstract: A method and a color rendering filter for compensating for deficiency in illumination light from a light source in display systems are provided. The color rendering filter has a color that is determined based upon the spectrum, sensitivity of viewer's eyes over the visible light range, and a pre-determined waveband threshold.

Abstract: Provided is information processing equipment capable of efficiently performing data transfer restarted after it is suspended because a possibility of being affected by an impact derived from dropping or the like is predicted or detected. During transfer of data from an HDD, an amount-of-transferred data meter counts in real time the number of sectors from which data has been transferred. An acceleration sensor detects acceleration applied to the equipment. A sector that may be affected by an impact derived from dropping or the like is identified based on the number of sectors indicated with a result of the measurement obtained when the detected acceleration value exceeds a threshold. Information on the sector is written in a register. When the data transfer is restarted, it is restarted with data stored in the sector that is recorded in the register.

Abstract: A disk drive provides temperature compensation for write current. The write current not only provides an acceptable bit error rate for data written to and read from the disk, but also prevents write induced instability in the head. Furthermore, the write current prevents excessive pole tip protrusion. As a result, the write current ensures that data is reliably stored and retrieved at a given temperature.

Abstract: A method for detecting a shock resistance performance of a magnetic head support member in a magnetic disk drive apparatus includes a step of loading a magnetic head supported by the magnetic head support member above a magnetic disk on which servo information have been preliminarily recorded, a step of measuring off-track positions of the magnetic head and reproduced outputs OUTNOIM of the magnetic head at the respective off-track positions when no shock is applied, a step of storing the measured off-track positions and the measured reproduced outputs OUTNOIM at the respective off-track positions, a step of measuring off-track positions of the magnetic head and reproduced outputs OUTIM of the magnetic head when a shock is applied, and a step of obtaining a change in flying height of the magnetic head from the measured reproduced output OUTIM of the magnetic head when the shock is applied and from the stored reproduced output OUTNOIM of the magnetic head when no shock is applied depending upon the measured of

Abstract: A magnetic disk apparatus formats a single data frame as a single sector. The magnetic disk apparatus includes a read-out control unit that controls to read-out sector data by emulating an existing format (e.g., “512 bytes/sector”), and a write-in control unit that controls to write sector data by emulating the existing format (e.g., “512 bytes/sector”), when the magnetic disk apparatus receives a read command or a write command based on a format (e.g., “512 bytes/sector”) that is different from a format of the magnetic disk apparatus (i.e., one sector/one data frame) from a host.

Abstract: A method of writing product servo sectors to a disk of a disk drive is disclosed. A plurality of spiral tracks are written to the disk, wherein each spiral track comprises a high frequency signal interrupted at a predetermined interval by a sync mark. During the product servo writing process, the sync marks in the spiral tracks are detected and a sync mark reliability metric is generated, wherein the sync mark reliability metric represents a probability that the sync mark was detected accurately. A timing recovery measurement is generated in response to the detected sync marks and the sync mark reliability metrics. A servo write clock is synchronized in response to the timing recovery measurement and used to write the product servo sectors to the disk while serving on the spiral tracks.

Abstract: Disclosed is a servo writer when, detecting an abnormality from servo signals written on a tape-shaped recording medium, such as a magnetic tape, corrects the abnormality through a simplified procedure, thereby allowing for an increase in the transport speed of media in the future. The servo writer includes a write head for writing servo signals, a verifying head positioned downstream of the write head in a transport direction of the tape, for reading the servo signals written by the write head in order to inspect the servo signal, an inspection section for checking whether or not the servo signals being read by the verifying head contain any abnormality, and an overwrite head positioned downstream of the verifying head in the transport direction, for overwriting a portion where the abnormality is detected by the inspection section.

Abstract: The present invention relates to a review control method of a video cassette recorder capable of controlling a review operation without noises on a screen in switching from a play mode into a review mode.

Abstract: A magnetic recording head comprises a write pole having a tip adjacent to an air bearing surface of the recording head, a return pole magnetically coupled to the write pole, a conductor positioned adjacent to an edge of the write pole at the air bearing surface, a first conductive heat sink connected to the conductor, and a second conductive heat sink connected to the conductor, wherein at least a portion of each of the first and second conductive heat sinks is positioned adjacent to the air bearing surface and wherein each of the first and second conductive heat sinks includes a structure for augmenting confinement of a magnetic write field adjacent to the write pole. Magnetic storage devices that include the magnetic recording head are also included.

Abstract: A method and system of switching heads in a hard disk drive written using an off-line STW method. In the method, first, deviations between a reference head and each of the heads are calculated. Next, a mapping table having the deviations between the reference head and each of the heads is generated and stored in a memory. Thereafter, when a head switching operation is requested, a current head is switched to a new head to access a track whose number is the same as the track assessed by the current head. A deviation of a track on which the head is positioned, recorded in the mapping table, is applied to the virtual track address of the track on which the head is positioned, thereby obtaining the physical track address of the track on which the head is positioned. The requested track is then accessed based on the obtained physical track address.

Abstract: A method and apparatus for providing a temporary utility zone in a disk drive. A disk surface has a write head associated therewith. The write head is used to write spiral servo information and a propagation state indicator onto the disk surface. The spiral servo information and propagation state indicator are used to perform a self-servo write operation on the disk surface.

Abstract: A method is presented for reducing time loss during manufacture and testing of a hard disk drive by predicting reduction in gas fill. The method includes using servo tracking error to obtain a measured value of insitu non-repeatable runout (NRRO) for the hard disk drive, the hard disk drive having been filled with the gas and semi-sealed. The measured value of NRRO is then deconvolved into a plurality of values for flow induced NRRO components. These values of NRRO and of flow induced NRRO components are compared to predetermined limiting values and a time when one of the predetermined limiting values will be reached is predicted. Action is then applied as appropriate.

Abstract: A storage device, which comprises a storage media, a spindle motor which spins the storage media, a head unit which records and reads the data to the storage media, an actuator which carries out the positioning operation to the head unit on the storage media, a loading and unloading system which controls the actuator and carries out the unload operation that withdraws the head unit from the storage media and the loading operation that shifts the head unit onto the storage media, and a measurement means which measures the unloading energy required for the unload operation.

Abstract: There is provided a magnetic tape, to be used at a running speed of at least 4,000 mm/sec., wherein servo signals for controlling tracking are recorded on the magnetic layer or the backcoat layer, and wherein the difference between the recording track width and the reproducing track width is 16 ?m or less, characterized in that the value of [?/(Tw?Tr)] is 0.2 or less, wherein a [?m] is an amount of a weave occurring on one of both edges of the magnetic tape and on the side of reference for the running of the tape; Tw [?m] is a recording track width; and Tr [?m] is a reproducing track width; and that a coefficient of humidity expansion in the tape widthwise direction is (0 to 14)×10?6/% RH; and a coefficient of thermal expansion in the tape widthwise direction is (0 to 10)×10?6/° C.

Abstract: A servo writer includes a tape running drive unit for running a magnetic tape in a longitudinal direction; a pulse signal generating circuit for generating pulse signals; a write head having a plurality of linear magnetic gaps thereon in a running direction of the magnetic tape at a predetermined interval, inputting pulse signals generated by the pulse signal generating circuit, and writing servo patterns corresponding to the magnetic gaps onto the magnetic tape with pitches between the servo patterns; a read head for sensing the servo patterns written on the magnetic tape and outputting pulse signals corresponding to the sensed servo patterns; a control unit for controlling the tape running drive unit to maintain constant the running speed of the magnetic tape based on a time interval between the pulse signals resulted from two of the appropriate linear patterns in parallel included in each of the servo patterns.

Abstract: Disclosed is a disk drive to characterize misaligned servo wedges. A disk of the disk drive includes a plurality of circumferential tracks, in which, each track includes a plurality of servo wedges spaced sequentially around the circumference of the track wherein the servo wedges may be misaligned relative to the head of the disk drive that moves about a pivot. A servo controller is used to characterize the misaligned servo wedges relative to the head during a seek operation by implementing the following operations: commanding the head to perform a seek operation from a starting track to an ending track; obtaining samples of wedge-to-wedge time (WTWT) values corresponding to time intervals between identified servo wedges for sampled tracks traversed during the seek operation; calculating WTWT variations for each sample; and calculating a calibrated misalignment value for each sample based upon WTWT variations.

Abstract: A mechanical gripper mechanism for transporting and handling storage devices is provided. In one example, the gripper mechanism includes a pair of opposing gripper fingers rotatably mounted to the picker frame, each having a distal end adapted to engage opposite minor side surfaces of a storage device. The opposing gripper fingers are further interconnected by corresponding geared surfaces such that the gripper fingers rotate together. In one example, the proximal ends of the gripper fingers include geared surfaces that are directly coupled to rotate the gripper fingers together.

Abstract: An improved disk drive system that employs a lubricant with improved charge control is provided. The disk drive system is comprised of a rotatably mounted magnetic disk. A rotor is coupled to the disk and rotatably retained by a stator. A bearing is formed that serves as an interface between the stator and the rotor. A motor coupled to the rotor rotates the magnetic disk via the rotor. Located in the bearing is a lubricant having a low relative electrical permittivity.

Abstract: A disk drive includes a disk clamp for clamping a plurality of disks to a spindle motor, and a disk spacer positioned between first and second disks. The first disk has a plurality of first disk through apertures adjacent its inner diameter. The first disk through apertures are circumferentially spaced-apart and extend longitudinally through the first disk. The disk spacer has a plurality of spacer apertures that are circumferentially spaced-apart and extend longitudinally through a portion of a thickness of the disk spacer. The disk clamp is adjacent to the first disk and has a plurality of clamp through apertures adjacent an outer diameter of the disk clamp. The clamp through apertures are circumferentially spaced-apart and extend longitudinally through the disk clamp. The first disk through apertures, the spacer apertures, and the clamp through apertures are aligned for allowing airflow to pass through when the plurality of disks is rotating.

Abstract: A thin-film magnetic has a coil toroidally wound around a magnetic layer. The coil includes a plurality of first coil segments that cross over the magnetic layer; a coil insulating layer covering the first coil segments, the magnetic layer being formed on the coil insulating layer; a plurality of second coil segments that cross over the magnetic layer, the second coil segments being formed on the coil insulating layer; and a plurality of bank layers disposed at two sides of the magnetic layer in the track width direction, the bank layers being electrically connected with ends of the first coil segments. Each second coil segment in the track width direction are electrically connected with upper faces of the bank layers to connect ends of the adjacent first coil layers with each other via the second coil segments. According to this structure, the second coil segments can be accurately formed by patterning.

Abstract: A magnetic write head for use in perpendicular magnetic data recording. The write head includes a write pole and a trailing shield having a tapered surface. A return pole stitched to the trailing shield is magnetically connected with the write pole at a location away from the air bearing surface (ABS).

Abstract: A magnetoresistive read/write head having a first layer of alumina and a second layer of silicon dioxide overlaying a P3 layer of the head. In a preferred embodiment, the silicon dioxide layer is recessed away from an Air Bearing Surface (ABS) to reduce protrusion of a P2 layer and the P3 layer in the head, and to reduce degradation in the magnetic properties of the pole tips of the P2 and P3 layer ends.

Abstract: A method and apparatus are provided for adjusting recession of an element, such as a pole tip, in a transducer structure formed in a plurality of thin film layers on an edge of a slider. A pre-stressed structure is formed as part of the plurality of thin film layers on the edge of the slider. The pre-stressed structure has a level of material stress. The recession is measured relative to a bearing surface of the slider, and then the level of material stress is adjusted as a function of the measured to effect a corresponding change in the recession.