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Class Information
Number: 451/10
Name: Abrading > Precision device or process - or with condition responsive control > With indicating > And feeding of tool or work holder
Description: Subject matter combined with the use of means to relatively move an abrading tool and workpiece gripping means.

Patents under this class:
1 2 3 4 5 6 7 8 9 10 11

Patent Number Title Of Patent Date Issued
8689430 Method for providing a perpendicular magnetic recording (PMR)head Apr. 8, 2014
8678880 Apparatus and method for measuring tooth surface deviation, apparatus and method for forming grinding tool, and gear meshing method for gear grinding apparatus Mar. 25, 2014
8636559 Method for wafer back-grinding control Jan. 28, 2014
8622783 Method and system for controlling chemical mechanical polishing by controllably moving a slurry outlet Jan. 7, 2014
8591289 Multi-spindle chemical mechanical planarization tool Nov. 26, 2013
8574028 Grinder/polisher Nov. 5, 2013
8568199 Polishing endpoint detection apparatus Oct. 29, 2013
8550873 Method and apparatus for prepping surfaces with a high-frequency forced pulsed waterjet Oct. 8, 2013
8550876 Force-controlled surface finishing through the use of a passive magnetic constant-force device Oct. 8, 2013
8545290 Wafer polishing apparatus and method Oct. 1, 2013
8500514 Apparatus and method for processing piston Aug. 6, 2013
8485860 Abrasive products with splice marks and automated splice detection Jul. 16, 2013
8453317 Magnetic write head fabrication with integrated electrical lapping guides Jun. 4, 2013
8419504 Method for relief-grinding the cutting teeth of taps, thread formers, and similar tools Apr. 16, 2013
8414354 Glass manufacturing device Apr. 9, 2013
8408965 Eddy current gain compensation Apr. 2, 2013
8407882 Method for manufacturing thin film magnetic heads Apr. 2, 2013
8403725 Method and device for machining workpieces Mar. 26, 2013
8366512 Eyeglass lens processing apparatus for processing periphery of eyeglass lens and eyeglass lens processing method Feb. 5, 2013
8337279 Closed-loop control for effective pad conditioning Dec. 25, 2012
8337276 Automated detection of characteristics of abrasive products during use Dec. 25, 2012
8333636 Eyeglass lens processing apparatus Dec. 18, 2012
8317570 Control of a grinding device with grinding rollers on winding shafts Nov. 27, 2012
8313357 Method for the production of a workpiece and grinding machine Nov. 20, 2012
8303370 Eyeglass lens processing apparatus Nov. 6, 2012
8298041 System and method for wafer back-grinding control Oct. 30, 2012
8296931 Method for manufacturing storage medium Oct. 30, 2012
8284560 Eddy current sensor with enhanced edge resolution Oct. 9, 2012
8267742 Slicing method and a wire saw apparatus Sep. 18, 2012
8251776 Method and apparatus for conditioning a CMP pad Aug. 28, 2012
8241092 Minimal force air bearing for lapping tool Aug. 14, 2012
8241091 Eyeglass lens processing apparatus Aug. 14, 2012
8225486 Method of manufacturing a perpendicular magnetic recording head Jul. 24, 2012
8221190 Polishing apparatus cofigured to simultaneously polish two surfaces of a work Jul. 17, 2012
8221194 Method of grinding bar-shaped workpieces, grinding machine for carrying out the method, and grinding cell in twin arrangement Jul. 17, 2012
8197299 Machining of ceramic materials Jun. 12, 2012
8166630 Magnetic head slider manufacturing method May. 1, 2012
8161627 Method of making a write head lapping guide about aligned to a non-magnetic layer surrounding a write pole Apr. 24, 2012
8145342 Methods and systems for adjusting operation of a wafer grinder using feedback from warp data Mar. 27, 2012
8142257 Detecting device for abnormal workpiece rotation in non-circular workpiece grinding machine Mar. 27, 2012
8137160 Gear matching device and gear machining apparatus Mar. 20, 2012
8113913 Method for the simultaneous grinding of a plurality of semiconductor wafers Feb. 14, 2012
8100738 Grinding machine and method for grinding work pieces between centers and for centerless grinding in which the work piece can be supported between a grinding wheel, and a regulating wheel eithe Jan. 24, 2012
8100739 Substrate holding apparatus, polishing apparatus, and polishing method Jan. 24, 2012
8083571 Polishing apparatus Dec. 27, 2011
8070555 Visual feedback for airfoil polishing Dec. 6, 2011
8070556 Grinding wheel for roll grinding and method of roll grinding Dec. 6, 2011
8025554 Method of polishing work Sep. 27, 2011
8002607 Polishing apparatus and polishing method Aug. 23, 2011
7996986 Apparatus for forming magnetic recording heads Aug. 16, 2011

1 2 3 4 5 6 7 8 9 10 11

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