...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7430795 | Method of making a slider A method of making a slider includes the steps of laminating the bottom-facing surface of a third layer to the upper-facing surface of a fourth layer, laminating the bottom-facing surface of a second layer to the upper-facing surface of the third layer in a heat-com... | 10/07/2008 |
| 7353587 | Forming distributed gap magnetic cores A method of manufacturing a magnetic core includes providing a substrate with magnetically permeable material that has a first region and a second region near the first region, providing support to maintain a juxtaposition between the first region and the second reg... | 04/08/2008 |
| 7351484 | High field contrast magnetic stampers/imprinters for contact patterning of magnetic media A high field contrast magnetic stamper/imprinter for use in patterning of magnetic and magneto-optical (MO) recording media by contact printing, comprises: (a) a layer of a magnetic material having a high saturation magnetization B... | 04/01/2008 |
| 7275307 | Method of making a magnetic head with ferrite between nonmagnetic portions and a nonmagnetic gap A method for making a magnetic head formed with a pair of magnetic core halves fitted to abut on each other having a nonmagnetic gap therebetween and having a slide contact plane for slide contact with a magnetic recording medium on which an end face of the nonmagne... | 10/02/2007 |
| 7270778 | Method for attachment of a plastic probe tip to a metal component A method and apparatus for fixedly securing a plastic encapsulated transducer to a metal interface cup for attachment with a machine includes a metal interface cup configured substantially as a cylinder defined by a cylinder wall and a bottom wall closing a bottom o... | 09/18/2007 |
| 7237322 | Method for making a tunnel valve head with a flux guide A method for making a tunnel valve head with a flux guide. The tunnel valve sensor is created by forming a tunnel valve at a first shield layer. The tunnel valve includes a free layer distal to the first shield layer, a first insulation layer deposited over the firs... | 07/03/2007 |
| 7225527 | Method of manufacturing magnetic tape When a magnetic tape material is slit into a plurality of magnetic tapes, projections are formed in edge portions of side surfaces of the magnetic tapes. The projections are removed by pressing cutting tools against the edge portions of the side surfaces of the magn... | 06/05/2007 |
| 7185416 | Method of manufacturing a slider for a thin-film magnetic head A slider comprises a slider section and a reproducing head section. The slider section has a first medium facing surface, an air inflow end, and a recording head. The reproducing head section has a second medium facing surface, an air outflow end, and a reproducing ... | 03/06/2007 |
| 7150094 | Method of stiffening an actuator comb and coil assembly A voice coil and actuator yoke assembly is fabricated by deforming the coil to exactly fit the inner perimeter and thickness of the yoke. The comb is placed in a tool that registers the comb with the yoke against the same flat surfaces that will squash the coil. The... | 12/19/2006 |
| 7133253 | Pole tip with sides flared at media-facing surface A thin film electromagnetic head has an inductive transducer with a ferromagnetic pole layer terminating adjacent a media-facing surface at a pole tip surface. The pole layer has side surfaces each having an end region that meets the pole tip surface, the end region... | 11/07/2006 |
| 7111383 | Method of forming a head assembly Methods of forming a head assembly, a head assembly, and a linear tape drive are provided. One aspect provides a method of forming a head assembly including providing a base member; forming a plurality of head components upon the base member individually adapted to ... | 09/26/2006 |
| 7100267 | Magnetic head, method for producing same, and magnetic recording and/or reproducing system A method for producing a magnetic head, including the steps of forming a magnetic body on a substrate, the magnetic body including a principal plane facing the substrate and a rear plane opposite to the principal plane; applying a beam to the rear plane of the magne... | 09/05/2006 |
| 7100269 | Method of manufacturing slider of thin-film magnetic head A slider comprises a slider section and an element section. The slider section has a first medium facing surface and an air inflow end. The element section has a second medium facing surface, an air outflow end, and a thin-film magnetic head element. The slider sect... | 09/05/2006 |
| 7070671 | Manufacturing method and apparatus for magnetic head sliders Disclosed herein is a method including the steps of cutting a wafer to prepare a row block having a plurality of head elements arranged in a matrix, bonding a plate member to one side surface of the row block, bonding a row tool to another side surface of the row bl... | 07/04/2006 |
| 7036209 | Method of simultaneously forming magnetic transition patterns of a dual side recording medium A method of simultaneously forming magnetic transition patterns in both side surfaces of a dual-sided magnetic or magneto-optical (MO) recording medium comprises steps of: (a) providing a dual-sided magnetic or MO recording medium having first and second oppo... | 05/02/2006 |
| 6849148 | Thin film magnetic tape head and method of manufacturing therefor A magnetic tape head assembly is provided along with a method of manufacturing a magnetic tape head. The magnetic tape head comprises a cluster of thin film inductive or magnetoresistive read/write elements, an I-block preferably made of a ceramic material, a U-bar ... | 02/01/2005 |
| 6820323 | Method of firing magnetic cores A method of firing magnetic cores includes the steps of attaching a powder to the surface of a plurality of flattened-ring compact bodies made of a magnetic material, arranging the plurality of flattened-ring compact bodies adjacently so that the axes of flattened t... | 11/23/2004 |
| 6802115 | Working method of bar block and manufacturing method of thin-film magnetic head A working method of a bar block with a plurality of magnetic head elements and a plurality of pairs of electrode terminals electrically connected to the plurality of magnetic head elements arranged on an element-formed surface of the bar block in at least one line. ... | 10/12/2004 |
| 6779248 | Method of manufacturing a lead overlay bottom spin valve with improved side reading In bottom spin valves of the lead overlay type the longitudinal bias field that stabilizes the device tends to fall off well before the gap is reached. This problem has been overcome by providing a manufacturing process that includes inserting an additional antiferr... | 08/24/2004 |
| 6775903 | Method for fabricating a top magnetoresistive sensor element having a synthetic pinned layer A method for forming top and bottom spin valve sensors and the sensors so formed, the sensors having a strongly coupled SyAP pinned layer and an ultra-thin antiferromagnetic pinning layer. The two strongly coupled ferromagnetic layers comprising the SyAP pinned laye... | 08/17/2004 |
| 6675464 | Method of manufacturing a magnetic head A method of manufacturing magnetic heads is provided in which a slider and a back yoke are joined to form a magnetic head main body. The main body is then fixedly bonded to a holding member that supports the magnetic head as a single unit. A plurality of ... | 01/13/2004 |
| 6647613 | Method of making a magnetic write head and in-process head structures A batch fabrication technique is described that increases the manufacturing efficiency of servo write heads and also improves servo pattern definition for fine features, while reducing tape and head wear. Multiple heads are fabricated as a batch from one ... | 11/18/2003 |
| 6625872 | Method for sintering magnetic core A method for easily sintering a magnetic core while preventing damage to the magnetic core caused by deformation or other problems, includes preparing a flattened tubular compact by forming the compact to have a flattened tubular shape and a through hole.... | 09/30/2003 |
| 6591479 | Production method for a spin-valve type magnetoresistive element A production method for a spin-valve type magnetoresistive element comprising laminating an antiferromagnetic layer, a pinned magnetic layer, a non-magnetic electrically conductive layer, a free magnetic layer, and a second antiferromagnetic layer. The se... | 07/15/2003 |
| 6588092 | Method for producing a magnetic head, the magnetic head including a pair of magnetic core halves Method for producing a magnetic head of a pair of magnetic core halves combined with a nonmagnetic layer therebetween including forming a winding window in at least one of a pair of generally flat oxide magnetic plates, forming at least one underlying lay... | 07/08/2003 |
| 6553648 | Manufacturing method of a side core type magnetic head slider A method of manufacturing magnetic head slider including a ferrite core having read/write gap and a housing formed on non-magnetic material having a rail on a surface opposite to a magnetic recording medium. The ferrite core and the housing are bonded to ... | 04/29/2003 |
| 6467141 | Method of assembling micro-actuator A method of assembling a micro-actuator is provided in which a base frame having a plurality of actuator bases is placed on a stage, a first adhesive is applied to each of the actuator bases, and a base electrode frame having a plurality of base electrode... | 10/22/2002 |
| 6221172 | Manufacturing method of spin-valve magnetoresistive thin film element A spin-valve magnetoresistive element includes a plurality of layers. The magnetic moment of a first pinned magnetic layer is smaller than the magnetic moment of a second pinned magnetic layer. In this case, a magnetic field of 100 to 1,000 Oe is applied ... | 04/24/2001 |
| 6170150 | Method for producing magnetic head A method for producing a magnetic head with reduced cross talk. A position of a projection for forming a magnetic gap on each of two magnetic core half bodies is adjusted by forming first and second position adjusting projections for having sidewall surfa... | 01/09/2001 |
| 6081991 | Manufacturing method of magnetic head apparatus A method of manufacturing a magnetic head apparatus provided with a slider having an ABS includes a step of aging a bar with a plurality of sliders, a step of lapping a surface or the bar, the surface including the ABS to be formed, the lapping step inclu... | 07/04/2000 |
| 6080249 | Method for adhering a member and apparatus for adhering a member A method for adhering a member and an apparatus for adhering the member to a base is useful for preventing warping of the member and non-uniformity of the strength of adhesion. After the adhesive application unit is positioned at a first position at a fix... | 06/27/2000 |
| 6070317 | Quiet magnetic structures A quiet transformer includes a laminated core having each laminate formed as a flat layer from highly grain oriented silicon steel which is fabricated by laser cutting techniques with each layer including five segments in intimate contact with each other ... | 06/06/2000 |
| 5996212 | Method of manufacturing a body having a structure of layers Method of manufacturing a multilayer structure, in which method gold is deposited on a basic layer (3, 11) for forming a gold layer (7, 13), whereafter aluminium oxide is deposited on the gold layer for forming an aluminium oxide layer (9, 15). Silicon ox... | 12/07/1999 |
| 5815910 | Method for manufacturing a magnetic head A method for manufacturing a magnetic head recording and reproducing information on or from magnetic recording media such as a video tape, includes the steps of preparing a chip core having a contact surface with which a magnetic tape contacts and on whic... | 10/06/1998 |
| 5655287 | Laminated transformer Two parts of magnetic layers are placed so as to clamp a coil forming unit consisting of an alternated laminate of non-magnetic layers and electrode layers. The coil forming unit is surrounded by the magnetic body to form a closed magnetic circuit. When m... | 08/12/1997 |
| 5546650 | Method of manufacturing a multiple track thin film recording head A method of manufacturing a thin-film magnetic head having a write element capable of producing a magnetic flux density sufficient to write the high coercivity magnetic tapes at high track density. The manufacturing process requires a minimum number of li... | 08/20/1996 |
| 5479696 | Method of making combination read/write magnetic head There is provided a method for producing erase bands of varying width between tracks of information on a recording medium. In accordance with the method, a magnetic head having a write gap and trailing pole with non-parallel portions is produced. In the p... | 01/02/1996 |
| 5428887 | Method of making a transducer with improved inductive coupling A thin film magnetic transducer is formed in a plurality of layers and comprises a yoke with at least one arm having segments respectively lying in separate said layers and connected through a transition layer, and one or more coils; the coil (or coils) a... | 07/04/1995 |
| 5353183 | Magnetic head assembly formed cooperating head sections bonded together using capillary attraction A magnetic head comprises a gapped media-contact surface formed by a pair of cooperating sections having corresponding planar surfaces abutted to each other. The planar surface of at least one of the sections has at least one narrow elongated slot contain... | 10/04/1994 |
| 5228184 | Method of manufacturing thin film magnetic head A method of manufacturing thin film magnetic heads. One embodiment of the present method features the step of placing a separating layer on a substrate and placing subsequent element layers of one or more thin film magnetic heads on the separating layer. ... | 07/20/1993 |