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| Number | Title | Issue Date |
| 6776688 | Real-time polishing pad stiffness-control using magnetically controllable fluid A method of CMP polishing of a semiconductor wafer is described that includes using a polishing pad on a platen/table with the polishing pad including a sub-pad containing pockets of magnetorheological fluid. The stiffness of the sub-pad is controlled by selectively... | 08/17/2004 |
| 6210258 | Vibrational finishing assembly A finishing assembly for vibratory finishing of workpieces in loose finishing media includes at least one generally annular finishing chamber which is driven by a drive assembly and supported by a support housing. The drive assembly consists of a crank sh... | 04/03/2001 |
| 5863883 | Slurry cleaning process A method of cleaning a solid surface which is particularly effective for a surface having a complicated structure including slots and holes comprises immersing the solid surface in a cleaning slurry comprising a cleaning liquid and abrasive particles whic... | 01/26/1999 |
| 5743790 | Vibrating abrasive cleaning apparatus and method This invention relates to a vibrating abrasive cleaning apparatus and method which is powered by a hydraulic drive motor mounted to a square tubing frame which is housed within an enclosure that is vibrated by an eccentric shaft assembly directly coupled ... | 04/28/1998 |
| 5580300 | Method and apparatus for surface polishing A washing liquid and a granular substance in the quantity equivalent to or more than the liquid in the specific gravity are accommodated in a barrel in a manner to position the surface of the liquid above the top surface of a granular substance layer at a... | 12/03/1996 |
| 5577948 | Magnetorheological polishing devices and methods A method of polishing an object is disclosed. In one embodiment, the method comprises the steps of creating a polishing zone within a magnetorheological fluid; determining the characteristics of the contact between the object and the polishing zone necess... | 11/26/1996 |
| 5487696 | Apparatus for polishing medals for game machine and for separating abrasive therefrom An apparatus for polishing medals for a game machine, and for separating an abrasive from the medals. An intake port (2) for the medals and the abrasive is provided on the lower end side of a polishing pipe (1) set upright, while a medal delivery port (3)... | 01/30/1996 |
| 5460566 | Vibrating abrasive cleaning apparatus and method This invention relates to a vibrating abrasive cleaning apparatus and method which is powered by a hydraulic drive motor mounted to a square tubing frame which is housed within an enclosure that is vibrated by an eccentric shaft assembly directly coupled ... | 10/24/1995 |
| 5449313 | Magnetorheological polishing devices and methods A method of polishing an object is disclosed. In one embodiment, the method comprises the steps of creating a polishing zone within a magnetorheological fluid; determining the characteristics of the contact between the object and the polishing zone necess... | 09/12/1995 |
| 4851091 | Process for producing support for lithographic printing plate A process for producing a support for a lithographic printing plate is disclosed, comprising mechanically graining a sheet for the support with abrasive grains which have sharp-angled tips having a radius of not more than 20 μm. The process is suitable f... | 07/25/1989 |
| 4036130 | Intaglio printing plate manufacture An intaglio printing plate is prepared by coating a copperplate-engraved plate having a superficial chromium layer with an ink-accepting material such as a hardenable epoxy or acrylic resin, an enamel varnish, or a chemically or electrolytically deposited... | 07/19/1977 |
