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| Number | Title | Issue Date |
| 8137163 | Burnish head design with multiple pads on side rail A disc burnishing head includes an array of burnishing pads and a first and second side rail projecting from a bottom surface of a slider body. The side rails each have an inside surface facing the burnishing pads and an outside surface facing outward. The outside s... | 03/20/2012 |
| 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 |
| 7194802 | Tool for certifying a head-gimbal assembly A device and method for testing a slider of a head-gimbal assembly during disc drive manufacturing. The device includes a test disc, an actuator arm and a control module. The test disc has a first circumferential area for detecting contact between the slider and the... | 03/27/2007 |
| 7140949 | Tool and process for chrome plating a vehicle wheel surface A cutting tool having a crystalline tip is pressed with a uniform pressure against the outboard surface of a vehicle wheel as the wheel is rotated. The smoothed wheel surface is then chrome plated to provide a cosmetic finish to the wheel face. ... | 11/28/2006 |
| 7107684 | Blade sharpening for electric shavers Apparatus, kits, and methods for sharpening electric shavers having rotary and reciprocating-type cutting members are disclosed. A sharpening apparatus in accordance with an exemplary embodiment of the present invention may include an applicator tray or other applic... | 09/19/2006 |
| 7104868 | Turning tool for grooving polishing pad, apparatus and method of producing polishing pad using the tool, and polishing pad produced by using the tool Disclosed is a turning tool for cutting circumferential grooves into a surface of a polishing pad formed of a resin material and utilized for polishing semiconductor devices. The turning tool comprising a cutting part arranged to have a tooth width within a range of... | 09/12/2006 |
| 7101263 | Flank superabrasive machining The present invention relates to a quill to be used to superabrasively machine complex shapes, such as airfoil shapes, into a substrate. The quill has a shaft portion, an enlarged head portion adjacent the shaft portion, and a tapered grinding portion adjacent the e... | 09/05/2006 |
| 7094132 | Method of and apparatus for magnetic-abrasive machining of wafers A method of magnetic-abrasive machining of parts has the steps of supporting a part, generating a magnetic field by magnetic means located at one side of the part, placing a magnetic-abrasive powder on a surface located at another, opposite side of the part, so that... | 08/22/2006 |
| 6976907 | Polishing pad conditioning An apparatus for conditioning a polishing pad of a CMP apparatus for making semiconductor wafers is provided which includes a control arm configured to extend at least partially over a polishing pad. The apparatus also includes at least one cylindrical conditioning ... | 12/20/2005 |
| 6960122 | Optical disc repairing device An optical disc repairing device is mounted on a repairing machine base to perform cleaning, maintenance and repair of the optical disc. The repairing device includes a movement transmitting element, a connecting element mounted on the movement transmitting element,... | 11/01/2005 |
| 6893330 | Tool and process for chrome plating a vehicle wheel surface A cutting tool having a crystalline tip is pressed with a uniform pressure against the outboard surface of a vehicle wheel as the wheel is rotated. The smoothed wheel surface is then chrome plated to provide a cosmetic finish to the wheel face. ... | 05/17/2005 |
| 6773335 | Apparatus for polishing periphery of device wafer and polishing method When a device wafer is chucked and is rotated about an axis thereof, arc-shaped work faces of first and second inclined-face-polishing members are brought into line-contact with inclined faces disposed at front and rear faces, respectively, of the device wafer, the ... | 08/10/2004 |
| 6733365 | Method and apparatus for hard machining A hard machining process uses a cylindrical tool (21) of ceramic or other hard machining material of comparatively low cost that provides a circular cutting edge to be engaged in cutting relation with hardened workpiece (20) to be machined. As tool cut... | 05/11/2004 |
| 6726544 | Method and apparatus for superfinishing tapered roller bearing A superfinishing method of a tapered roller bearing, including the steps of: rotating an outer ring of the tapered roller bearing about a center axis thereof; inserting a straight-shaped superfinishing stone from a front face of outer ring; and slidingly contacting ... | 04/27/2004 |
| 6589103 | Device for the finishing treatment of shaft workpieces The invention relates to a device for the finishing treatment of shaft workpieces, in particular crankshafts and camshafts. The device comprises a carrier, at least one jaw for exerting contact pressure on the workpiece, and a linear guide for guiding the... | 07/08/2003 |
| 6503132 | Hybrid burnish/glide head with advanced air bearing fly height control rails A disc burnishing system configured to contact and level irregularities located on a surface of a disc is provided. The system includes a motor to rotate the disc and an armature. A slider is carried on the armature over the surface of the disc. The slide... | 01/07/2003 |
| 6478660 | Apparatus of and method for polishing the outer circumferential portions of a circular plate-shaped work A pair of edge polishing members (13a, 13b) each having a recess arcked working surface (22) are located on both sides of a diameter direction of a circular plate-shaped work (1) which is held by a chuck means (12) and is rotatable therewith, with the axe... | 11/12/2002 |
| 6368197 | Method and apparatus for supporting and cleaning a polishing pad for chemical-mechanical planarization of microelectronic substrates A method and apparatus for supporting, cleaning and/or drying a polishing pad used for planarizing a microelectronic substrate. In one embodiment, the apparatus can include a cleaning head positioned adjacent a post-operative portion of the polishing pad ... | 04/09/2002 |
| 6352470 | Method and apparatus for supporting and cleaning a polishing pad for chemical-mechanical planarization of microelectronic substrates A method and apparatus for supporting, cleaning and/or drying a polishing pad used for planarizing a microelectronic substrate. In one embodiment, the apparatus can include a cleaning head positioned adjacent a post-operative portion of the polishing pad ... | 03/05/2002 |
| 6322426 | Method for mirror process of external surface of long sized metal A method for mirror processing of an external surface of a long-sized metal piece, by which the external surface is mirror-polished with precision and high efficiency without a surface defect or so that stable dimensional accuracy, such as a roundness and... | 11/27/2001 |
| 6248003 | Method of truing grinding wheel and device used in performing such method A method of truing a grinding wheel includes the steps of providing a material containing a metallic material selected from the group consisting of metals in groups IVA, VA and VIA of the periodic table and alloys thereof, rotating a grinding wheel having... | 06/19/2001 |
| 6244944 | Method and apparatus for supporting and cleaning a polishing pad for chemical-mechanical planarization of microelectronic substrates A method and apparatus for supporting, cleaning and/or drying a polishing pad used for planarizing a microelectronic substrate. In one embodiment, the apparatus can include a cleaning head positioned adjacent a post-operative portion of the polishing pad ... | 06/12/2001 |
| 6213260 | Brake pad and methods of braking and resurfacing a rotatable brake member A brake pad operates to both resurface the braking surface of a rotor, and then automatically continue functioning as a normal brake pad. The rotor resurfacing is accomplished on the vehicle, employing all the components of a vehicle brake assembly, creat... | 04/10/2001 |
| 6149512 | Linear pad conditioning apparatus A linear pad conditioning mechanism provides a linear in situ or ex situ conditioning for a polishing pad mounted on a polishing belt of a CMP apparatus. The linear pad conditioning mechanism includes a linear oscillation mechanism for driving a condition... | 11/21/2000 |
| 6099387 | CMP of a circlet wafer using disc-like brake polish pads Apparatus and method for polishing one or both sides of a semiconductor wafer that has a central opening are provided. In one aspect, the apparatus includes a mandrel for holding the wafer and a motor coupled to the mandrel that is operable to rotate the ... | 08/08/2000 |
| 6071179 | Apparatus and method for grinding and polishing spherical bodies A spherical body grinding and polishing apparatus comprises: a rotary shaft having a spiral path groove in the outer cylindrical surface along which spherical bodies to be processed are moved, the rotary shaft being vertically movable and rotatable; and a... | 06/06/2000 |
| 6048257 | Abrasive pad holder A holder for an abrasive element used to abrade the surface of a workpiece. The holder is made of an abrasive pad resiliently mounted upon a holder in a manner providing to the pad multiple degrees of freedom of motion.... | 04/11/2000 |
| 5913710 | Method and device for producing drive belts with small rotation-angle error Method for producing drive belts with small rotation-angle error includes measuring the rotation-angle error of a given drive belt, and then physically altering part of the length of the given drive belt so that the rotation-angle error therein is substan... | 06/22/1999 |
| 5885147 | Apparatus for conditioning polishing pads A flexible conditioning apparatus and method for uniformly conditioning a polishing surface of a pad used to remove undesirable irregularities from a silicon wafer and to achieve a planar condition of the polishing pad. In a preferred embodiment of the pr... | 03/23/1999 |
| 5863237 | Low speed burnishing of asperities in a disc drive A method of and apparatus for burnishing a surface of a magnetic disc of a disc drive are disclosed. The disc drive has a data head and an actuator supporting the head as the head flies above the surface of the disc. A controller causes the disc to be rot... | 01/26/1999 |
| 5807167 | Foam pad resurfacer A resurfacer for resurfacing a working surface of a foam pad used for polishing auto finishes, in particular, includes a base having a support surface for supporting a polishing pad while it is being driven by a polisher power unit with which the polishin... | 09/15/1998 |
| 5779526 | Pad conditioner Polishing apparatus cuts and shapes a polishing pad to produce a polishing surface which minimizes pad runout and which can be contoured to better achieve desired polishing rates, pressures, and performance with respect to selected areas on a semiconducto... | 07/14/1998 |
| 5738569 | Threaded grinding wheel, and method of dressing A method of dressing a threaded grinding wheel comprising rotating the grinding wheel and dressing tool about their respective axes and bringing the tool into contact with a point on a flank of the grinding thread. The dressing tool is traversed along the... | 04/14/1998 |
| 5487697 | Polishing apparatus and method using a rotary work holder travelling down a rail for polishing a workpiece with linear pads The present invention relates to an apparatus for polishing semiconductor wafers and, in particular, one in which the polishing pads are linear, that is, the polishing pads have a long linear dimension relative to their width and have a uniform cross-sect... | 01/30/1996 |
| 5199224 | Dart sharpener An apparatus for sharpening a dart includes a sharpening stone and a dart holder. The apparatus simultaneously translates the dart to be sharpened across the stone while rotating it against the stone in a direction opposed to the translation. An accurate,... | 04/06/1993 |
| 5172521 | Sharpening apparatus for forage harvester knives A sharpening apparatus is disclosed for a plurality of knives disposed in a cutterhead generating a cylindrical periphery when rotating. The apparatus comprises a grinding stone; a carriage for carrying the grinding stone in a grinding mode across the cut... | 12/22/1992 |
| 5168659 | Apparatus for finely working piston rings A device is provided for finely working exterior circumferential faces of self-tensioning piston rings which are combined into a packet. The device includes a cylindrical sleeve having an interior wall surface against which the circumferential faces of th... | 12/08/1992 |
| 5077881 | Tape scraper and process for producing same A tape scraper is made of a block of material having first and second planar internal surfaces disposed at an angle relative to each other. An external surface of the block is ground by a grindstone, while the block is rotated about an axis. The axis is l... | 01/07/1992 |
| 5063712 | Micro-burnishing flex head structure An integrated unitary micro-burnishing head structure for use with the surface of rigid magnetic recording media. In one type of embodiment, the proposed head structure includes a single elongate flexure body to one end of which is joined a media-contacti... | 11/12/1991 |
