Did You Know...
...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8035929 | Magnetic head assembly and magnetic tape driving apparatus A magnetic head assembly of the present invention includes a head rail having a plurality of head element portions each including a MR element and sliding portions that come into contact with a magnetic tape, and a protective film on a magnetic tape sliding surface ... | 10/11/2011 |
| 7436632 | Differential/dual CPP recording head A magnetic sensor for reading information from a magnetic medium. The magnetic sensor includes a bottom electrode and a first sensor disposed above the bottom electrode. The magnetic sensor also includes a middle electrode disposed above the first sensor, a second s... | 10/14/2008 |
| 7408730 | Reproducing head and magnetic disk drive A reproducing head including a read element, first and second electrodes provided at the opposite ends of the read element, a ground electrode provided between the first and second electrodes, a first constant current circuit for passing a first constant current bet... | 08/05/2008 |
| 7405907 | Adjacent magnetoresistive read head and method for obtaining position error signal A read head for reading magnetically stored data in adjacent tracks of a medium has at least two elongate bodies, each having at least one magnetoresistive part. The magnetoresistive parts have sensor portions defined along a length of the elongate bodies, by electr... | 07/29/2008 |
| 7360302 | Manufacturing method of a magnetic sensor A magnetic sensor comprises magnetoresistive elements and permanent magnet films, which are combined together to form GMR elements formed on a quartz substrate having a square shape, wherein the permanent magnet films are paired and connected to both ends of the mag... | 04/22/2008 |
| 7362548 | Magnetic sensor and manufacturing method therefor A magnetic sensor comprises magnetoresistive elements and permanent magnet films, which are combined together to form GMR elements formed on a quartz substrate having a square shape, wherein the permanent magnet films are paired and connected to both ends of the mag... | 04/22/2008 |
| 7342748 | System with matrix array of write heads and matrix array of magnetoresistive (MR) read heads The invention provides a system comprising a non-linear array of magnetoresistive (MR) heads arranged in a two-dimensional matrix for reading information stored on magnetic media. The non-linear array of MR heads may comprise a planar array formed by a plurality of ... | 03/11/2008 |
| 7336452 | Patterned exchange bias GMR using metallic buffer layer In magnetic read heads based on bottom spin valves the preferred structure is for the longitudinal bias layer to be in direct contact with the free layer. Such a structure is very difficult to manufacture. The present invention overcomes this problem by introducing ... | 02/26/2008 |
| 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 cross-track direction has a magnetoresistive read head with high cross-tr... | 01/08/2008 |
| 7292414 | External coil bias for giant magneto-resistive sensor A disk includes a perpendicular recording disk, a head having a read portion to read information recorded on the perpendicular recording disk, a sensor in the read portion, and a coil structure, coupled to the read portion, to provide bias flux to the sensor. The co... | 11/06/2007 |
| 7289303 | Spin valve sensors having synthetic antiferromagnet for longitudinal bias Magnetoresistive (MR) sensors are disclosed having mechanisms for reducing edge effects such as Barkhausen noise. The sensors include a pinned layer and a free layer with an exchange coupling layer adjoining the free layer, and a ferromagnetic layer having a fixed m... | 10/30/2007 |
| 7283337 | Abutted exchange bias design for sensor stabilization A hard bias (HB) structure for biasing a free layer in a MR sensor within a magnetic read head is comprised of a main biasing layer with a large negative magnetostriction (λS) value. Compressive stress in the device after lapping induces a strong in-plan... | 10/16/2007 |
| 7271986 | V-shape magnetic field sensor with anisotropy induced orthogonal magnetic alignment A magnetoresistive sensor having two free layers with shape anisotropy induced magnetic alignment is disclosed. The magnetoresistive sensor includes a first ferromagnetic free layer having a first quiescent state magnetization direction. The magnetoresistive sensor ... | 09/18/2007 |
| 7262503 | Semiconductor constructions The invention encompasses methods of forming insulating materials between conductive elements. In one aspect, the invention includes a method of forming a material adjacent a conductive electrical component comprising: a) partially vaporizing a mass to form a matrix... | 08/28/2007 |
| 7262064 | Magnetoresistive effect element, magnetic memory element magnetic memory device and manufacturing methods thereof In a magnetoresistive effect element using a ferromagnetic tunnel junction having a tunnel barrier layer sandwiched between at least a pair of ferromagnetic layers, a magnetization free layer comprising one of the ferromagnetic layers is composed of a single layer o... | 08/28/2007 |
| 7253611 | Magnetic displacement ruler This invention relates to a magnetic displacement measurement device, which comprises a ruler body and a vernier, wherein a magnetic main ruler is fixed on the ruler body, and a secondary ruler is fixed on the vernier; the secondary ruler comprises a magnetic sensor... | 08/07/2007 |
| 7233142 | Planer reader of non-erasable magnetic media and local permeability A planer reader and method of probing the magnetic permeability of a material using a magnetic flux circuit comprises a substrate; a near-circular soft magnetic layer adjacent to the substrate; a gap configured in the soft magnetic layer, wherein the gap creates an ... | 06/19/2007 |
| 7230802 | Method and apparatus for providing magnetostriction control in a freelayer of a magnetic memory device A method and apparatus for providing magnetostriction control in a free layer of a magnetic memory device is disclosed. The same target compositions for the free layers may be used, but the relative thickness values are modified to obtain a desired magnetostriction ... | 06/12/2007 |
| 7227726 | Method and system for providing a dual-stripe magnetoresistive element having periodic structure stabilization A dual-stripe element magnetroresistive read head for reading information from a magnetic tape. The read head includes a first insulating layer, a first active magnetoresistive layer formed on the first insulating layer, a second insulating layer formed on the first... | 06/05/2007 |
| 7219935 | Latch apparatus and method In some embodiments of the present invention, a lever is actuatable to unlatch a pawl when the lever is in an unlocked position. When the lever is in a locked position, lever actuation cannot unlatch the pawl. An over-center device coupled to the lever can be used t... | 05/22/2007 |
| 7199435 | Semiconductor devices containing on-chip current sensor and methods for making such devices Semiconductor devices containing a MOSFET and an on-chip current sensor in the form of a magnetic resistive element are described. The magnetic resistive element (MRE) is proximate the MOSFET in the semiconductor device. The current flowing through the MOSFET genera... | 04/03/2007 |
| 7196875 | Permalloy sensor having individual permalloy resist pattern runners with lengths perpendicular to a wafer level anisotropy A permalloy sensor having high sensitivity is presented A substrate and a sensor has a first surface having a wafer level anisotropy in a given direction. A permalloy resistor pattern of individual runners is deposited on the surface such that the mechanical length ... | 03/27/2007 |
| 7197197 | Method for detecting projectile impact location and velocity vector A method of determining the path of a projectile comprises detecting multiple time of arrivals of the projectile in multiple intersecting planes and determining the path and speed of the projectile based on the multiple times of arrivals. ... | 03/27/2007 |
| 7181829 | Method of manufacturing a perpendicular magnetic recording head A main magnetic pole layer is formed on an insulating layer flattened into a high-flatness surface, and a yoke layer having a large film thickness is formed under the main magnetic pole layer independently of the main magnetic pole. The main magnetic pole layer has ... | 02/27/2007 |
| 7180715 | Canted easy axis in self-pinned layers A magnetic head having a free layer and an antiparallel (AP) pinned layer structure spaced apart from the free layer, the AP pinned layer structure including at least two AP-pinned layers having magnetic moments that are self-pinned antiparallel to each other, the A... | 02/20/2007 |
| 7177122 | Biasing for tri-layer magnetoresistive sensors A biasing system for a tri-layer reader stack magnetoresistive sensor is disclosed. The tri-layer reader stack includes a first ferromagnetic free layer, a second ferromagnetic free layer, and a magnetoresistive layer between the first and second ferromagnetic free ... | 02/13/2007 |
| 7170724 | Magnetic sensor and manufacturing method therefor A magnetic sensor comprises magnetoresistive elements and permanent magnet films, which are combined together to form GMR elements formed on a quartz substrate having a square shape, wherein the permanent magnet films are paired and connected to both ends of the mag... | 01/30/2007 |
| 7167193 | Active cooling system for laser imager An apparatus for cooling thermally processed media exiting from a thermal processor comprising: a heat conductive member which has first and second opposite sides which is positioned to receive media from a thermal processor, and which removes heat from the heated m... | 01/23/2007 |
| 7158353 | Magnetoresistive sensor having specular sidewall layers A transducing head includes a multilayered magnetoresistive sensor having an air bearing sidewall opposite aback sidewall and a first sidewall opposite a second sidewall. A specular layer is positioned on at least one of the air bearing sidewall, the back sidewall, ... | 01/02/2007 |
| 7154714 | Recording/reproducing separated type magnetic head having differential bias type magnetic domain control structure A recording/reproducing separated type magnetic head comprising a first magnetic domain control layer for arranging the magnetizing direction of a free layer included in a magneto-resistive element to a predetermined direction, and a second magnetic domain control l... | 12/26/2006 |
| 7118680 | Self-alignment scheme for enhancement of CPP-GMR A method for fabricating a current-perpendicular-to-plane (CPP) giant magnetoresistive (GMR) sensor of the synthetic spin valve type is provided, the method including an electron-beam lithographic process employing both primary and secondary electron absorption and ... | 10/10/2006 |
| 7112962 | Angular position detection utilizing a plurality of rotary configured magnetic sensors A magnetic sensing method and system include a die comprising a central location thereof. A group of magnetoresistive bridge circuits are located and configured upon the die. A magnetic biasing component is then utilized to bias the plurality of magnetoresistive bri... | 09/26/2006 |
| 7095589 | Magnetic recording medium and magnetic recording and reproducing system A disc-shaped magnetic recording medium has magnetic tracks that are arranged thereon substantially concentrically for writing and reading magnetic information. Assuming that a saturation magnetic field in a width direction extending in a radial direction from the c... | 08/22/2006 |
| 7092221 | Top CPP GMR/TV with back end of stripe pinned by insulating AFM A magnetic head includes a read sensor having a primary stack, a secondary stack and an exchange layer. The primary stack includes one or more primary pinned layers having a top surface, a barrier layer, a free layer, and a seed layer. The secondary stack includes o... | 08/15/2006 |
| 7061725 | Magnetic read sensor with stripe width and stripe height control The present invention includes a magnetic sensing structure having a stripe height and a stripe width defining an area for a current flowing therethrough, and at least one electrode positioned adjacent an edge of the magnetic sensing structure for adjustably control... | 06/13/2006 |
| 7057863 | Anti-parallel tab sensor fabrication using chemical-mechanical polishing process A method for fabricating a sensor having anti-parallel tab regions. The method includes forming a free layer, and forming a first layer of a carbon composition above the active area of the free layer. A layer of resist is formed above the first layer of carbon compo... | 06/06/2006 |
| 7054120 | Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effect The magnetoresistance effect element is of a multilayered structure having at least magnetic layers and an intermediate layer of an insulating material, a semiconductor or an antiferromagnetic material against the magnetic layers, and the magnetoresistance effect el... | 05/30/2006 |
| 7037470 | System and method for biochemical assay A system for making a biochemical assay of each of plurality of provided specimens, comprising: a plurality of receptacles, a sensor for providing a resistance, a mechanism and a controller. ... | 05/02/2006 |
| 7026677 | Magnetoresistive element, magnetic memory cell, and magnetic memory device, and method for manufacturing the same The present invention provides a magnetic memory device capable of performing stable operation efficiently using a magnetic field generated by write current and formed with high precision while realizing a compact configuration. Since a plating film is used for at l... | 04/11/2006 |
| 7027319 | Retrieving data stored in a magnetic integrated memory Methods and apparatuses are disclosed for retrieving data stored in a magnetic integrated memory. In one embodiment, the method includes applying a perturbing hard-axis magnetic field to a magnetic element in a magnetic integrated memory and detecting a change in an... | 04/11/2006 |
