Famous Patents
The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
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 |
| 8184411 | MTJ incorporating CoFe/Ni multilayer film with perpendicular magnetic anisotropy for MRAM application A MTJ for a spintronic device is disclosed and includes a thin composite seed layer made of at least Ta and a metal layer having fcc(111) or hcp(001) texture as in Ta/Ti/Cu to enhance perpendicular magnetic anisotropy (PMA) in an overlying laminated layer with a (Co... | 05/22/2012 |
| 8184399 | Magnetic write head with thin and thick portions for balancing writability and ate A perpendicular magnetic recording (PMR) head is fabricated with a tapered main pole having a variable thickness. The tapered portion of the pole is at the ABS tip and it can be formed by bevels at the leading or trailing edges or both. The taper terminates to form ... | 05/22/2012 |
| 8184398 | Magnetic head that suppresses protrusion of medium facing surface caused by heat of coil A magnetic head includes a coil, a pole layer, and a coil adjacent layer. The coil includes a winding portion having two side surfaces. The coil adjacent layer is adjacent to at least part of the whole of the two side surfaces of the winding portion. The coil adjace... | 05/22/2012 |
| 8179628 | Magnetic core plasmon antenna with improved coupling efficiency A TAMR (Thermal Assisted Magnetic Recording) write head uses the energy of optical-laser generated plasmons in a magnetic core plasmon antenna to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. To enable the TAMR head to o... | 05/15/2012 |
| 8177955 | Electrodeposition of FeCoNiV films with high resistivity and high saturation magnetization for magnetic head fabrication A magnetic layer that may serve as a top pole layer and bottom pole layer in a magnetic write head is disclosed. The magnetic layer has a composition represented by FeWCoXNiYVZ in which w, x, y, and z are the atomic % of F... | 05/15/2012 |
| 8176623 | Method of manufacturing a magnetic head for perpendicular magnetic recording A method of manufacturing the magnetic head includes the steps of: forming the pole-layer-encasing layer; forming an initial nonmagnetic layer in the groove of the pole-layer-encasing layer by physical vapor deposition, the initial nonmagnetic layer being intended t... | 05/15/2012 |
| 8174790 | Thin-film magnetic head having remnant coating and remnant insulating film, head gimbal assembly and hard disk drive A thin-film magnetic head including a structure in which a main magnetic pole layer including a magnetic pole end part on a side of a medium-opposing surface opposing a recording medium, a write shield layer opposing the magnetic pole end part so as to form a record... | 05/08/2012 |
| 8174261 | Magnetic film sensor with a deformable part A magnetic film sensor comprises a magnetic film for generating a magnetostriction, and a magnetostrictive structure for generating a magnetostriction in the magnetic film. The magnetostrictive structure is constructed so as to generate a magnetostriction by curving... | 05/08/2012 |
| 8173028 | Method of manufacturing magnetic head for perpendicular magnetic recording including two side shields A magnetic head includes a pole layer, first and second side shields, and an encasing layer having first to third grooves that accommodate the pole layer and the first and second side shields. A manufacturing method for the magnetic head includes the step of forming... | 05/08/2012 |
| 8171607 | Method of manufacturing ceramic capacitor In a method of manufacturing ceramic capacitor according to the present invention, a pair of interdigitated internal electrodes are arranged perpendicularly to the surface of the substrate, subsequent to which the respective end faces of this pair of internal electr... | 05/08/2012 |
| 8169740 | Thin-film magnetic head structure and thin-film magnetic head A thin-film magnetic head including a main magnetic pole layer having a magnetic pole end part on a side of a medium-opposing surface opposing a recording medium; a write shield layer opposing the magnetic pole end part to form a recording gap layer on the medium-op... | 05/01/2012 |
| 8164862 | Seed layer for TMR or CPP-GMR sensor A composite seed layer that reduces the shield to shield distance in a read head while improving Hex (exchange coupling field) and Hex/Hc (Hc=coercivity) is disclosed and has a SM/A/SM/B configuration in which the SM layers are soft magnetic layers, the A (amorphous... | 04/24/2012 |
| 8163186 | Method of manufacturing magnetic head, and magnetic head sub-structure A method of manufacturing magnetic heads comprises the step of: fabricating a magnetic head substructure by forming a plurality of components of the magnetic heads on a single substrate, wherein a plurality of rows of pre-head portions that will be the respective ma... | 04/24/2012 |
| 8149653 | Light source unit for thermally-assisted magnetic recording capable of monitoring of light output Provided is a light source unit that is to be joined to a slider to form a thermally-assisted magnetic recording head. The light source unit comprises: a unit substrate having a source-installation surface; a light source provided in the source-installation surface ... | 04/03/2012 |
| 8139447 | Heat-assisted magnetic recording head with near-field light generating element A heat-assisted magnetic recording head includes a magnetic pole, a waveguide, a near-field light generating element, and a substrate on which they are stacked. The near-field light generating element and the waveguide are disposed farther from the top surface of th... | 03/20/2012 |
| 8134802 | Writer and reader arrangements for shingled writing A sloped reader is disclosed that reduces skew between reader and written transitions in shingled writing. The reader is formed between surfaces of S1 and S2 shields that are aligned parallel to the sloped reader. A PMR writer is described that straigh... | 03/13/2012 |
| 8134229 | Layered chip package A layered chip package includes a main body including a plurality of layer portions, and wiring disposed on a side surface of the main body. Each layer portion includes a semiconductor chip, an insulating portion covering at least one side surface of the semiconduct... | 03/13/2012 |
| 8125732 | Tapered PMR write pole with straight side wall portion A main pole layer with a tapered trailing side is disclosed that has three sections each with a write pole portion along the ABS and a yoke portion. A lower section has a bottom surface including a leading edge at the write pole tip and sidewalls with a bevel angle ... | 02/28/2012 |
| 8118990 | Electroplated magnetic film for read-write applications A process is described for the fabrication, through electrodeposition, of FexCoyNiz (x=60-71, y=25-35, z=0-5) films that have, in their as-deposited form, a saturation magnetization of at least 24 kG and a coercivity of less than 0.3... | 02/21/2012 |
| 8117738 | Method to make a perpendicular magnetic recording head with a side write shield A perpendicular magnetic recording (PMR) head is fabricated with a self-aligned pole tip shielded laterally by a separated pair of side shields and shielded from above by an upper shield. The side shields are formed from a shield layer by a RIE process characterized... | 02/21/2012 |
| 8114683 | Low temperature method to enhance detection of magnetic beads Detection of magnetic beads at temperature below room temperature can increase the signal level significantly as compared to the same detection when performed at room temperature. Additional improvement is obtained if the beads are below 30 nm in size and if deviati... | 02/14/2012 |
| 8107201 | Hard bias design for extra high density recording A hard bias structure for biasing a free layer in a MR element within a read head is comprised of a composite hard bias layer having a Co78.6Cr5.2Pt16.2/Co65Cr15Pt20 configuration. The upper Co65... | 01/31/2012 |
| 8107200 | ESD, cross talk and noise minimizing resistive/capacitative shunt for CPP and TMR devices A slider mounted CPP GMR or TMR read head sensor is protected from electrostatic discharge (ESD) damage and from noise and cross-talk from an adjacent write head by means of a balanced resistive/capacitative shunt. The shunt includes highly resistive interconnection... | 01/31/2012 |
| 8107192 | Heat-assisted magnetic recording head with laser diode fixed to slider A heat-assisted magnetic recording head includes a slider, an edge-emitting laser diode fixed to the slider, and an external mirror fixed to the laser diode. The laser diode has: an emitting end face that includes an emission part for emitting laser light; a mountin... | 01/31/2012 |
| 8105705 | External field robustness of read/write head shields An improved magnetic shield for a perpendicular magnetic write head is disclosed. Its main feature is a pair of tabs at the shield's bottom corners. Said tabs are significantly wider at their point of attachment to the shield than further away from the shield. The e... | 01/31/2012 |
| 8105703 | Process for composite free layer in CPP GMR or TMR device The conventional free layer in a CPP GMR or TMR read head has been replaced by a tri-layer laminate comprising Co rich CoFe, moderately Fe rich NiFe, and heavily Fe rich NiFe. The result is an improved device that has a higher MR ratio than prior art devices, while ... | 01/31/2012 |
| 8094419 | Optimized write pole flare angle for side shield or semi side shield PMR writer application Improved writability and a reduction in adjacent track erasure are achieved in a PMR writer with a large flare angle of 45 and 90 degrees in the main write pole and a full side shield or partial side shield configuration around the narrow write pole section and writ... | 01/10/2012 |
| 8094418 | Vertically stacked DFH heater design for protrusion shape control A vertically stacked DFH design in a read/write head is disclosed that allows independent control of write gap protrusion and read gap protrusion. A first heater is formed in an insulation layer proximate to a sensor in a read head. A second heater is formed in a se... | 01/10/2012 |
| 8087157 | Process to manufacture magnetic tunnel junction read head Using a beam of xenon ions together with a suitable mask, a MTJ stack is ion milled until a part of it, no more than about 0.1 microns thick, has been removed so that a pedestal, having sidewalls comprising a vertical section that includes all of the free layer, has... | 01/03/2012 |
| 8085522 | Capacitor and method of manufacturing the same and capacitor unit The present invention has a configuration which allows manufacturing a capacitor including a first electrode layer, conductive first convex sections layered on a surface of the first electrode layer, a first dielectric layer formed on a surface of the first convex s... | 12/27/2011 |
| 8085498 | PMR write with flux choking area A PMR writer having a trailing shield structure is disclosed in which a flux choking layer (FCL) formed adjacent to the ABS provides a means to limit the amount of flux flowing from the trailing shield to a first write shield (WS1) near the write pole tip the... | 12/27/2011 |
| 8077433 | Thin-film magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive A thin-film magnetic head is constructed such that a main magnetic pole layer having a magnetic pole end face on a side of a medium-opposing surface opposing a recording medium, a write shield layer opposing the main magnetic pole layer on the medium-opposing surfac... | 12/13/2011 |
| 8059496 | Magnetic core plasmon antenna with recessed plasmon layer Various embodiments of a TAMR head having a magnetic core antenna (MCA) with a recessed plasmon layer are disclosed. An end of the plasmon layer is separated from the ABS by a magnetic layer that transmits the plasmon mode from the plasmon layer and transmits magnet... | 11/15/2011 |
| 8059374 | TMR device with novel free layer structure A composite free layer having a FL1/insertion/FL2 configuration is disclosed for achieving high dR/R, low RA, and low λ in TMR or GMR sensors. Ferromagnetic FL1 and FL2 layers have (+) λ and (−) λ values, respectively. FL1 may be CoFe, CoFeB, or alloys thereof ... | 11/15/2011 |
| 8059372 | CPP GMR read head with minimum shunting loss Biasing schemes used for CIP GMR devices were previously thought to be impractical for CPP devices due to current shunting by the abutted hard magnets. In the present invention the CPP stripe is a narrow conductor directly above the free layer. The resistivity of th... | 11/15/2011 |
| 8059371 | Method to reduce sensitivity of a magnetic read-write head to external magnetic fields 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 by the addition to the shields of a pair of tabs located at the edges ... | 11/15/2011 |
| 8059366 | Perpendicular magnetic recording head with a laminated pole A laminated write pole layer for a PMR write head is disclosed in which a plurality of “n” magnetic layers and “n−1” non-magnetic spacers are formed in an alternating fashion on a substrate. The non-magnetic spacers promote exchange decoupling or antiferro... | 11/15/2011 |
| 8056214 | Method of manufacturing magnetic head for perpendicular magnetic recording including two side shields A magnetic head includes a pole layer, first and second side shields, and an encasing layer having a pole groove that accommodates the pole layer and first and second side shield grooves that accommodate the first and second side shields. In a manufacturing method f... | 11/15/2011 |
| 8056213 | Method to make PMR head with integrated side shield (ISS) A PMR head comprises a substrate, a magnetic pole formed over the substrate, the pole having a pole tip having a cross-sectional tapered shape wherein the pole tip is surrounded by a write gap layer, an integrated shield comprising side shields on the substrate late... | 11/15/2011 |
| 8054583 | Ta/W film as heating device for dynamic fly height adjustment A dynamic fly heater (DFH) for improved lifetime and better film uniformity is disclosed for a magnetic head. The heater has a lower amorphous Ta layer and an upper W layer to promote small grain size and reduced electro-migration. The composite film is especially a... | 11/08/2011 |
