...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 |
| 8339742 | Slider with leading edge blend and conformal step features A slider having an air bearing surface and a leading face is described. The slider comprises a leading edge blend comprising a first curved surface formed at an intersection of the air bearing surface and the leading face. The slider further comprises at least one s... | 12/25/2012 |
| 7417829 | Head slider having a flat first step and a second flat step with a groove therein, and disk drive employing the head slider A head slider includes a parallelepiped-shaped slider base having a flat flying surface. A flat first step is formed at an air inlet end of the flying surface to be stepped from the flying surface. A flat second step is formed on the first step to be stepped from th... | 08/26/2008 |
| 7352531 | Head slider having a flat first step and a second flat step with a groove therein, and disk drive employing the head slider A head slider includes a parallelepiped-shaped slider base having a flat flying surface. A flat first step is formed at an air inlet end of the flying surface to be stepped from the flying surface. A flat second step is formed on the first step to be stepped from th... | 04/01/2008 |
| 7352532 | Method and apparatus for utilizing a small pad to increase a head to a disk interface reliability for a load/unload drive An apparatus and method for utilizing a small pad to increase a head to a disk interface reliability for a load/unload drive. The method provides a suspension for reaching over a disk. A slider having a read/write head element on a trailing edge (TE) portion is also... | 04/01/2008 |
| 7314404 | Burnishing head A burnishing head comprises at least two rails, each rail having an inner wall and an outer wall. The outer walls are at an angle relative to one another and relative to a central axis of the burnishing head. This angle permits the burnishing head to exhibit improve... | 01/01/2008 |
| 7255636 | Hybrid burnishing head design for improved burnishing of disk media A hybrid burnishing head for processing of surfaces of hard disk media comprises a solid body including a first major surface and a second, opposed major surface comprising a burnishing surface including first and second surface portions, wherein the first surface p... | 08/14/2007 |
| 7245455 | Center split feature and pressurization for altitude insensitivity, high pitch torque and high preload sensitivity air bearing slider The present invention is directed to a bearing surface on a slider having a center split pressurization feature which minimizes the effects of altitude or change in ambient air pressure on the flying characteristics of the slider. After a cavity dam and a subambient... | 07/17/2007 |
| 7236329 | Head slider having extension rails to provide uniform flotation and magnetic disk device including the same A head slider including a disk-facing surface having an inflow end and outflow end, inflow-end-side rail, negative pressure part, three extension rails, a pair of siderails, an inflow-end-side-positive-pressure part, and outflow-end-side-positive-pressure part, and ... | 06/26/2007 |
| 7190550 | Air bearing slider having a bearing profile contoured for pressurization proximate to nodal regions of a slider-disc interface An air bearing slider which includes a raised bearing surface or surfaces contoured to limit off nodal pressurization. The air bearing surfaces are located proximate to nodal regions of a height field or profile between the slider and disc surface to limit off-nodal... | 03/13/2007 |
| 7164557 | Apparatus for burnishing small asperities and cleaning loose particles from magnetic recording media An air bearing burnish slider burnishes very small asperities and cleans the loose particles that adhere to the magnetic recording media. The slider applies a controllable contact force to effectively burnish disk asperities or partially attached particles. In addit... | 01/16/2007 |
| 7159228 | Converter support device with slider A converter that records or reproduces information to or from a recording medium while making a movement relative to the recording medium is mounted on a slider. The slider has at least a pair of openings on a side face thereof, and airflow generated by the movement... | 01/02/2007 |
| 7133258 | Flying head slider capable of avoiding collision when loaded A flying head slider includes a slider body. The upstream or leading end of a bottom surface on the slider body is defined along a first datum line extending in the lateral direction of the slider body. The first datum line may be set perpendicular to the longitudin... | 11/07/2006 |
| 7124244 | Storage system and a method of speeding up writing data into the storage system A storage system having disk drives, a first and a second cache memory for temporarily storing data sent from a host system so as to be written in the disk drives and a duplicate of the data, a first FIFO buffer for temporality storing the duplicate data in order to... | 10/17/2006 |
| 7061235 | Magnetic head and disk X-Y test assembly with optimized arrangement for skew angle A magnetic head and disk tester comprises a base, a spindle for rotationally supporting a magnetic disk, a carriage for supporting a magnetic head support which carries a magnetic head with a magnetic read/write element, and a dual-stage positioning system that move... | 06/13/2006 |
| 7057855 | Head slider with flotation improving section and disk drive apparatus using the same A head slider has, on its front face opposing a disk, a positive pressure generating section and a negative pressure generating recess, and a sloped face slopping toward the air outlet side. By virtue of the sloped face, the negative pressure hindering with high-spe... | 06/06/2006 |
| 7027265 | Flying head slider capable of avoiding collision when loaded having an air clogging dished space A flying head slider includes a slider body. The upstream or leading end of a bottom surface on the slider body is defined along a first datum line extending in the lateral direction of the slider body. The first datum line may be set perpendicular to the longitudin... | 04/11/2006 |
| 7012785 | Method and apparatus for head slider and suspension reducing air flow turbulence about the slider when accessing a rotating disk in a disk drive The invention includes head gimbal assemblies, actuators, and disk drives containing at least one airfoil boundary reducing air flow turbulence about a slider induced by said head gimbal assembly accessing a rotating disk surface. ... | 03/14/2006 |
| 7006323 | Magnetic head for proximity recording A slider having a protrusion extending beyond an air bearing surface of the slider to maintain the slider with a positive pitch angle during contact with the surface of a disk. The protrusion may be disposed on a leading edge step of the slider body with the protrus... | 02/28/2006 |
| 6995952 | Head shock resistance and head load/unload protection for reducing disk errors and defects, and enhancing data integrity of disk drives A slider in a disk drive is shock-protected with an overcoat layer of either metal or polymer directly on the areas of the slider that are prone to contact the disk when the slider is loaded off the platform, or when the slider is shocked while in operation over the... | 02/07/2006 |
| 6961217 | Head slider and disk drive employing same head slider, and method for providing water repellent treatment to same head slider With a view to providing a head slider which can suppress the adhesion of dust particles to a flying surface of the head slider when the head slider flies and a disk drive employing the same head slider, a head slider in which at least an air bearing portion and a l... | 11/01/2005 |
| 6937439 | Slider having a textured air bearing surface, head stack assembly and disk drive using same A disk drive includes a disk having a recording surface and a head stack assembly. The head stack assembly includes a body portion that includes a bore defining a pivot axis, an actuator arm cantilevered from the body portion and a head gimbal assembly supported at ... | 08/30/2005 |
| 6937440 | Head slider having convergent channel features with side opening A head slider having a slider body with a disc facing surface and a bearing plane is provided. A first recessed area and a second recessed area are positioned on the disc facing surface and recessed from the bearing plane. A rail on the disc facing surface has a cha... | 08/30/2005 |
| 6934124 | Rotating recording medium and slider of thin-film magnetic head device A slider includes a slider main body and a thin-film magnetic head element. The slider main body has an air bearing surface, an air inflow end, and an air outflow end. The air bearing surface has a first part closer to the air outflow end, a second part closer to th... | 08/23/2005 |
| 6927942 | Magnetic head slider and magnetic head slider assembly having a leading slope angle smaller than a trailing slope angle A head slider has small friction force even if the head slider comes in contact with a magnetic disk having a smooth surface at high speed. The vibration is also low and wear resistance is high. The head slider is provided with plural air bearing surfaces for floati... | 08/09/2005 |
| 6922313 | Magnetic head slider with resistance to debris accumulation A magnetic recording head for reading and writing information with respect to a rotating disk medium includes a pad having a working surface which contacts the recording medium. The pad has a leading edge and a trailing edge with the leading edge facing in the gener... | 07/26/2005 |
| 6744601 | Slider having leading surface for contaminant deflection A disc head slider includes a slider body having a disc-facing surface and a leading surface adjacent to the disc facing surface. The disc facing surface has leading-most edge and first and second side edges. A bearing surface is formed on the disc facing surface. A... | 06/01/2004 |
| 6674612 | Magnetic transducing slider with leading edge crossbar A magnetic data transducing head slider is provided with a transversely extended crossbar or other barrier near the leading edge. The barrier is deposited onto the air bearing surface of the slider using photolithographic techniques that enable precise de... | 01/06/2004 |
| 6667854 | Magnetic head having head element protected from electrostatic damage, and production method therefor In a magnetic head, a head element and bumps connected thereto are formed on one end face of a slider substrate, and an insulating film is formed on the other end face opposite from the one end face. Therefore, even when the slider is electrically charged... | 12/23/2003 |
| 6643100 | Magnetic head having a chamfer thereof oriented toward medium and method for manufacturing the same An angle θ1 made between a supporting surface S of a slider and an imaginary plane C in which a first border line and a second border line of a tapered surface lie, and an angle θ2 made between the supporting surface S of the slider and an imaginary pla... | 11/04/2003 |
| 6608735 | Asymmetric tapered air bearing slider An air bearing slider includes an asymmetric taper for control of pressurization and suction force formation. The asymmetric taper is disposed on an edge of a slider to accommodate for the speed differential across the disc radial direction, thereby impro... | 08/19/2003 |
| 6580584 | Head assembly having leading edge step scheme for tuned air entrainment An improved head assembly having a leading edge step scheme for tuned air entrainment for improved head performance in higher capacity disk drives. The head assembly having a tuned leading edge step scheme improves the performance of the heads by controll... | 06/17/2003 |
| 6542334 | Edge structure for slider-disc interface and method of manufacture therefor A slider for improved head-disc interface. The slider includes a slider body, an air bearing and edge surfaces. Edge surfaces of the slider include a rounded edge surface having a deposited edge covering for head-disc interface.... | 04/01/2003 |
| 6490136 | Magnetic head, manufacturing method thereof, and magnetic disk drive A slider 1 is provided with a magnetic head element for recording or reading signals from a magnetic disk. On this slider, a chamfer is formed by polishing between a rear end of a ramp edge and a front end edge of a rail's principal plane. This constructi... | 12/03/2002 |
| 6452750 | Slider including a rail having a concave end and method of manufacturing same A slider is provided that can implement a magnetic head reducing damage to a magnetic recording medium. The slider includes a body having a surface facing the magnetic recording medium and including at least one rail. The rail has at least one end that is... | 09/17/2002 |
| 6426850 | Converter support structure A slider portion is provided with protrusion portions having a spherical surface, contacting a recording medium. A center of a magnetic pole is arranged on the line C1 connecting the vertices of the protrusion portions. Line C1 is more or less aligned wit... | 07/30/2002 |
| 6424494 | Flying head slider having rail narrowed near trailing end A rail is formed on a medium-opposed surface of a slider body in a flying head slider. An air bearing surface is defined on the upper surface of the rail, which faces the medium. Projections are formed on the medium-opposed surface. The projections serve ... | 07/23/2002 |
| 6351346 | Head slider A head slider comprising a slider body provided with an air bearing surface arranged in one surface of the slider body and a tapered surface arranged adjacent to an air introducing end of the air bearing surface. The head slider is provided with an adhesi... | 02/26/2002 |
| 6130808 | Hovering-type head slider and magnetic disc device Disclosed is a hovering-type head slider in which the variation in static hovering distance is reduced as much as possible, thereby making it possible to obtain a hovering distance which is constant with respect to variation in the skew angle and in the l... | 10/10/2000 |
| 6104571 | Head device having an improved air bearing surface to attenuate a turbulent air flow A head device includes a slider which is supported by a supporting plate. A head portion is provided on the slider and reads information from or writes information to a storage medium. The slider has an air bearing surface confronting the storage medium. ... | 08/15/2000 |
| 6084743 | Magnetic recorder apparatus with reduced debris accumlation on the recorder head and slider A common cause for catastrophic failure in a magnetic disk storage system is due to the collection of debris on the slider/head assembly. Two factors contributing to these failures are: a) disk liquid lubricant provides a sticky medium for debris accumulation;... | 07/04/2000 |