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7623322 Thin-film magnetic head with heater spaced further from medium facing surface than split in shield  
The present invention relates to a thin-film magnetic head with a heater. A thin-film magnetic head includes a substrate, a magnetic read head element that has a shield area and is formed on the...
7606007 Shield stabilization for magnetoresistive sensors  
Apparatus and method for providing a magnetic head that includes a magnetoresistive read sensor disposed between first and second magnetic shields. The shields are configured to reduce protrusion...
7606006 Magnetic recording head and magnetic disk storage apparatus mounting the magnetic head  
Embodiments of the invention provide a write head for perpendicular recording in which the magnetic field intensity applied at a read element is reduced with larger write-field gradients and the...
7599153 Method and apparatus providing a stabilized top shield in read head for magnetic recording  
A method and apparatus providing a stabilized top shield in a read head used for the longitudinal or perpendicular magnetic recording is disclosed. The top shield includes a laminate structure...
7599151 Magnetic head with laminated side shields  
Embodiments of the invention provide a magnetic recording and read head which reduces the spread read width in a narrow track having a width of 100 nm or less and shows stable read operation. In...
7599152 Magnetic read-write head shield that prevents flux concentration at edges close to the ABS  
In a read-write head, the shields can serve as magnetic flux conductors for external fields, so that they direct a certain amount of flux into the recording medium. This problem has been overcome...
7583478 Thin-film magnetic head, head gimbal assembly, head arm assembly and magnetic disk drive  
A thin-film magnetic head comprises: a magnetoresistive element: first and second read shield layers disposed to sandwich the magnetoresistive element; and bias field applying layers for applying a...
7573683 Write heads with floating side shields and manufacturing methods  
A write head for a media drive suited for perpendicularly recording data in adjacent magnetic recording media, the media having a magnetic recording layer and a soft underlayer (SUL). The write...
7565732 Method of manufacturing a write pole  
A method of fabricating a magnetic write head, in accordance with one embodiment, includes forming a beveled write pole. A conformal spacer may be formed upon a portion of a flare length proximate...
7564236 Thermal fly height induced shield instability screening for magnetoresistive heads  
A method for testing magnetic heads formed on a wafer to detect the presence of thermal induced popcorn noise resulting from thermal fly height control. The method includes performing a quasi test...
7562436 Deposition defined trackwidth for very narrow trackwidth CPP device  
In one embodiment, a method of forming a CPP sensor comprises providing a sensor having a hard mask disposed on a left side thereof and a right side with a portion of the sensor material removed...
7561380 Transducing head including a magnetic element exhibiting varying permeability  
A transducing head has a main pole and at least one magnetic element (such as a return pole or a shield) which provides a potential return path for a magnetic field produced by the main pole. The...
7558027 Magnetic field sensor provided with an upper shield layer having portions with different magnetostriction  
A magnetic field sensor comprises: a magnetic field detecting element that detects magnitude of an external magnetic field based on electric resistance of the magnetic field detecting element to...
7545608 Current-perpendicular-to-the-plane (CPP) magnetoresistive sensor with impedance adjustment  
A current-perpendicular-to-the-plane (CPP) magnetoresistive (MR) read head structure has the MR read head located between first and second shields (S 1 , S 2 ) on a substrate with a shunt resistor...
7542246 Transducer with pole tip protrusion compensation layer  
A transducer for a disk drive head includes a pole tip protrusion (PTP) compensation layer disposed proximate to a write element of the head to at least partially offset the effect of pole tip...
7542245 Composite thin-film magnetic head with non-magnetic conductive layer to balance parasitic capacitances  
Composite thin-film magnetic head includes a substrate; a first insulation layer on the substrate; an MR read head element on the first insulation layer and provided with a lower shield layer, an...
7532441 MR read head with first and second gap layers  
A magetoresistive (MR) read head according to one embodiment includes a shield layer with a recessed portion and a protruding portion defined by the recessed portion; a first gap layer located on...
7522386 CPP thin-film magnetic head having auxiliary conductive layer behind element  
A CPP thin-film magnetic head includes lower and upper shield layers separated by a predetermined distance and a thin-film magnetic head element disposed therebetween. Current flows in a direction...
7522392 Magnetoresistive sensor based on spin accumulation effect with terminal connection at back end of sensor  
A magnetoresistive (MR) read head based on the spin accumulation effect has no electrical terminal and associated insulating layer in the read gap. The spin-accumulation type MR read head has an...
7522387 Thin film magnetic head and fabrication process for preventing short-circuit failure in a narrow track width and narrow gap length  
Embodiments of the invention relate to preventing short-circuit failure even in the narrow track width and narrow gap length, resulting in improved yield. In one embodiment, die sensor heads are...
7518825 Thin film magnetic head wherein at least one of a return pole, a first shield, and a second shield has a reverse taper  
Embodiments of the invention avoid loss of information as recorded, due to an external magnetic field applied. In one embodiment, a pole expanded part prone to occurrence of magnetic saturation is...
7511921 Read and write heads with at least a portion of the coil positioned about the write pole opposite the read transducer to reduce adjacent track erasure  
Techniques for reducing adjacent track erasure include: a bucking coil having a lower number of turns than the write coil for bucking out a portion of the field induced by the write coil; a hybrid...
7508628 Winged pole and shield structure for reducing stray field in a perpendicular write head  
A magnetic structure for use in a magnetic recording head, the structure having improved resistance to stray field writing. The magnetic structure can be for example a magnetic shield or a return...
7505232 Magnetic head with side shield and manufacturing method thereof  
In a side shield structure employed to narrow the effective track, a noise caused by the side shield structure can be reduced. In one embodiment, the side shield is inclined with respect to the...
7483244 Helical scan tape system with particular distance between MR element and shield layers  
In a helical scanning tape system including a magnetoresistive head; and a magnetic recording medium having a magnetic layer formed by oblique evaporation on a long nonmagnetic support, a signal...
7463459 Self-pinned read sensor design with enhanced lead stabilizing mechanism  
A self pinned magnetoresistive sensor that has a relatively thick compressive material at either side to assist with self pinning. A shield having recessed portions at either side of the sensor...
7463455 Magnetoresistive head having first and second shield layers between first and second lead layers  
A magnetic head provided with magnetoresistance effect element, the magnetic head comprises first shielding layer superimposed on one surface of the magnetoresistance effect element and whose area...
7460342 Method to form tapered magnetic shield for perpendicular recording head  
The inadvertent introduction of stray fields at the media surface by the shields that form part of a magnetic read-write head has been eliminated by using a combination of masking and ion milling...
7450349 Magnetic head with soft magnetic shield and magnetic storage  
Embodiments of the invention avoid erasure of recorded data by concentrating stray fields on a magnetic head element. According to one embodiment, in a magnetic storage apparatus using a...
7446980 Method for manufacturing a stitched “floating” trailing shield for a perpendicular recording head  
A bi-layer, floating, trailing shield for use in a perpendicular magnetic recording system and a method for manufacturing such a trailing shield. Manufacturing the trailing shield as a bilayer...
7446979 Laminated draped shield for CPP read sensors  
A magnetic head is disclosed having a CPP read head which produces reduced cross-track interference. The CPP read head includes a read sensor, a first shield and a second shield. The second shield...
7438229 Combined magnetic shield member and pressure pad for a magnetic reader  
A magnetic shield member for a device with a magnetic reader, the magnetic shield member includes a biasing member including a first end, a second end opposite to the first end and an intermediate...
7440237 Thin film magnetic head, head gimbal assembly, and hard disk drive  
In a thin film magnetic head of the present invention, lead formation patterns of a first lead for connection between a lower shield layer and a first extraction electrode portion and a second lead...
7436634 Magnetically anisotropic shield for use in magnetic data recording  
A magnetic shield for use in a magnetic head. The magnetic shield has a magnetic anisotropy associated with a magnetic easy axis of magnetization oriented substantially parallel with the air...
7436638 Ferromagnetic pinning structure including a first section antiferromagnetically coupled to a pinned layer and a second section elongated relative to the first section in a stripe height direction  
A CPP magnetic sensor is disclosed with a ferromagnetic layer that extends in a first direction a first distance; a nonferromagnetic spacer layer that adjoins the ferromagnetic layer and extends in...
7426096 Magnetoresistive effective element with high output stability and reduced read bleeding at track edges  
A first shielding layer and a second shielding layer are disposed by a given distance. An MR film is disposed in between the first shielding layer and the second shielding layer. The first gap film...
7418778 Method for producing a CPP thin-film magnetic head  
A CPP thin-film magnetic head includes a bottom shield layer; a top shield layer, the bottom shield layer and the top shield layer being disposed at a predetermined interval; a thin-film magnetic...
7419610 Method of partial depth material removal for fabrication of CPP read sensor  
A method for fabricating a read head sensor for a magnetic disk drive is presented. The method includes providing a layered wafer stack to be shaped, where the layered wafer stack includes a free...
7408746 Magnetoresistive device and method of manufacturing same, thin-film magnetic head, head gimbal assembly, head arm assembly and magnetic disk drive  
A magnetoresistive device comprises: a first shield layer and a second shield layer disposed with a space from each other in the direction of thickness; an MR element disposed between the first and...
7398592 Manufacturable CMP assisted liftoff process to fabricate write pole for perpendicular recording heads  
This invention describes a manufacturable method, including a CMP liftoff process, for removing masking materials after ion milling for fabricating the write pole of a magnetic head. Significant...
7394619 Disk drive write head for writing cross-track magnetizations  
An inductive write head has its write poles and write gap oriented to generate magnetic fields in the cross-track direction on a magnetic recording disk in a disk drive. The disk has the...
7379277 Reader shield/electrode structure for improved stray field and electrical performance  
A magnetic sensing device includes a first electrode, a second electrode, a first magnetic shield, a second magnetic shield, and a sensor. The first magnetic shield forms at least a portion of the...
7379276 Magnetic recording head having a plurality of shield layers  
Provided is a magnetic recording head including a return pole, a writing pole spaced by a predetermined distance from the return pole, an induction writing coil for inducing a magnetic field to be...
7377024 Method of making a magnetic write head with trailing shield throat pad  
A method of fabricating a magnetic transducer is described which uses a trailing shield throat pad to set the trailing shield throat height. The trailing shield throat pad is used as a part of the...
7375932 Disk drive read head for reading cross-track magnetizations  
A magnetoresistive read head is capable of reading cross-track magnetizations in a magnetic recording disk drive that has the magnetized regions or magnetizations in the magnetic recording layer of...
7336450 Magnetic head with optimum aspect ratio of upper shield layer  
A magnetic head contains a write magnetic head and a read magnetic head. The write magnetic head includes a lower core layer, an upper core layer arranged over the lower core layer, and a coil...
7325296 Method of fabricating a magnetic head  
A magnetic head having a magnetic shield and/or pole layer that is fabricated as a plurality of laminated layers, in which each layer includes a sublayer thickness of Fe(N) and a sublayer thickness...
7324309 Cross-track shielding in a GMR head  
A magnetoresistive read/write head includes an integral top and side shields deposited on top of and substantially surrounding the multiple layers of the MR sensor stack. Such a design is...
7320168 Method to improve heat dissipation in a magnetic shield  
Problems such as thermal pole tip protrusion result from thermal mismatch between the alumina and pole material during the writing process. This, and similar problems due to inadequate heat...
7317596 Magnetic recording disk drive having read head with high cross-track resolution and disk with low bit-aspect-ratio  
A continuous-media or patterned-media disk drive with a low ratio of linear bit density in bits per inch (BPI) in the along-the-track direction to track density in tracks per inch (TPI) in the...
Matches 1 - 50 out of 254 1 2 3 4 5 6 >