Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 8055374 | Machining quality judging method for wafer grinding machine and wafer grinding machine A machining quality judging method for a wafer grinding machine and wafer grinding machine are disclosed. The thickness of a wafer 2 is acquired from the feed amount of a grinding unit 3 while at the same time actually measuring the thickness of the wa... | 11/08/2011 |
| 8041446 | Post-process sizing control device for grinding machine A post-process sizing control device is provided with origin compensation means for controlling a size measuring device to measure an actual size of a workpiece portion and for compensating the origin of a wheel head by a position compensation amount which correspon... | 10/18/2011 |
| 7987015 | Method and apparatus for manufacturing optical elements In a method for producing optical elements, material on a blank (20) is removed with an abrasive liquid jet (32). The liquid jet (32) has a jet thickness (d) which is greater than the dimension (D) of the blank (20) in a plane (E) perpend... | 07/26/2011 |
| 7974730 | Method for the discontinuous grinding of bevel gears and corresponding software for controlling a multiaxis grinding machine Method for the chip-removing machining of the tooth flanks of a gear wheel having n teeth and n tooth gaps on a multiaxis grinding machine. A grinding disc which may be dressed is used for the machining and one of the n tooth gaps after another is machined using thi... | 07/05/2011 |
| 7930058 | Nanotopography control and optimization using feedback from warp data Processing a wafer using a double side grinder having a pair of grinding wheels. Warp data is obtained by a warp measurement device for measuring warp of a wafer as ground by the double side grinder. The warp data is received and a nanotopography of the wafer is pre... | 04/19/2011 |
| 7899572 | Method and device for measuring the geometry of a cutting edge to be chamfered The machining of drills (1) includes an operation for chamfering the cutting edges (8) performed in two steps. In the first step the rotating grindstone (15) is directed to various locations of the cutting edge (8) and the point of contac... | 03/01/2011 |
| 7869896 | Tangential grinding resistance measuring method and apparatus, and applications thereof to grinding condition decision and wheel life judgment A tangential grinding resistance measuring method includes obtaining an abrasive grain section area which is at a predetermined infeed depth from the highest top surface of abrasive grains on a grinding wheel; calculating the tangent of a half vertex angle of a coni... | 01/11/2011 |
| 7848844 | Substrate grinding method and device A grinding method wherein the correlation between the amount of inertial grinding occurring in performing spark-out by a grinding unit and the maximum load current in a motor of the grinding unit is grasped, and a correction value for the amount of inertial grinding... | 12/07/2010 |
| 7848843 | Eyeglass lens processing apparatus and lens fixing cup In a two-step processing mode in which a cup for attaching a lens to a chuck axis is changed from a large diameter cup to a small diameter cup on the way of processing, a roughing path data computing unit for computing first roughing path data larger than the target... | 12/07/2010 |
| 7797074 | Machine including grinding wheel and wheel dresser Disclosed are a machine with a grinding wheel and a dressing surface and related method. The dressing surface is movable in at least two axes of translation relative to the grinding wheel. The rotational speed of the grinding wheel and dressing surface preferably ar... | 09/14/2010 |
| 7769483 | Detection-signal transmitting apparatus A detection signal representing changes of an object observed can be easily transmitted to any desirable site, without performing complex adjustment to use the signal. An AE sensor is provided on an appropriate part of the circumferential surface of a rotating-side ... | 08/03/2010 |
| 7720562 | Polishing method and polishing apparatus A polishing method enables to initiation a second polishing step of a workpiece with an optimal thickness of an uppermost-layer film to be polished. The polishing method comprises: measuring a thickness of an uppermost-layer film, and then carrying out a first polis... | 05/18/2010 |
| 7643899 | Method of beveling an ophthalmic lens blank, machine programmed therefor, and computer program The present invention is directed to a machine programmed to edge an ophthalmic lens blank. The machine includes an edger device for forming a bevel in a peripheral edge of the lens blank, a central processing unit operably associated with the edger device for contr... | 01/05/2010 |
| 7463944 | Method of grooving and drilling an ophthalmic lens blank, machine programmed therefor, and computer program The present invention is directed to a method of controlling an edger device, and a machine programmed to edge a lens blank. A lens blank and an edger are provided. The edger device is capable of forming a groove in a peripheral edge of the lens, and forming at leas... | 12/09/2008 |
| 7454264 | Method of beveling an ophthalmic lens blank, machine programmed therefor, and computer program The present invention is directed to a machine programmed to edge an ophthalmic lens blank. The machine includes an edger device for forming a bevel in a peripheral edge of the lens blank, a central processing unit operably associated with the edger device for contr... | 11/18/2008 |
| 7392108 | Method of controlling an edger device, machine programmed to edge an ophthalmic lens blank, and computer program The present invention relates to a method of controlling an ophthalmic edger device, and a machine programmed to edge and ophthalmic lens blank. A lens blank and an edger device for forming a groove in a peripheral edge of the lens blank are provided. A central proc... | 06/24/2008 |
| 7377836 | Versatile wafer refining Methods of refining using a plurality of refining elements are discussed. A refining apparatus having refining elements that can be smaller than the workpiece being refined are disclosed. New refining methods, refining apparatus, and refining elements disclosed. Met... | 05/27/2008 |
| 7376482 | Grinding method and apparatus In a grinding method and apparatus, a machining portion of a workpiece is ground with a grinding wheel on a trial, and shape errors in respective rotational phases of the machining portion are measured after the trial grinding. Based on the shape errors, control dat... | 05/20/2008 |
| 7371686 | Method and apparatus for polishing a semiconductor device A method and an apparatus for polishing a semiconductor wafer are provided. An initial thickness of the semiconductor wafer is actually measured to obtain a measured initial thickness value. First and second inter-positions are then set or determined with reference ... | 05/13/2008 |
| 7361076 | Method for estimating polishing profile or polishing amount, polishing method and polishing apparatus A polishing method can automatically reset polishing conditions according to a state of a polishing member based on data on a polishing profile changing with time, thereby extending life of the polishing member and obtaining flatness of a polished surface with highe... | 04/22/2008 |
| 7335091 | Methods and apparatus for machining a coupling A method facilitates fabricating a coupling including a first annular coupling member and a second annular coupling member. The method comprises coupling the first coupling member to a machine assembly that includes a plurality of grinding wheels coupled to a tool s... | 02/26/2008 |
| 7310981 | Method for regulating the temperature of strip metal The invention relates to a method for controlling and regulating the temperature of a metal strip in a finishing train of a hot rolling mill. A target function is formed by comparing a desired temperature gradient with an actual temperature gradient. The target func... | 12/25/2007 |
| 7299107 | Method for analyzing effective polishing frequency and effective polishing times for chemical mechanical planarization polishing wafers with different polishing pad profiles A method for analyzing polishing frequency and number of polishing times for chemical planarization polishing wafer with different polishing pad profiles is disclosed. First, drawings of a wafer and a polishing pad are provided and then are converted into pixel arra... | 11/20/2007 |
| 7288418 | Process for treating substrates for the microelectronics industry, and substrates obtained by this process A process for treating substrates for the microelectronics or optoelectronics industry, wherein the substrates include on at least one of their faces a working layer in which components are intended to be formed. The process includes a step of annealing under a redu... | 10/30/2007 |
| 7283886 | Practical measurement system for a manufacturing process A complete Direct Digital Numerical Control (DDNC) automation system for a practical measurement system for a manufacturing process where a given slide or ram is moved under power by input of GO-TO location commands to cause a cascade of motion events to an approxim... | 10/16/2007 |
| 7269472 | Many-headed grinding machine and grinding method using many-headed grinding machine A control device 40 controls the grinding processing at a processing portion of a work W so as to shift to the last precision grinding step from a rough grinding step through a middle grinding step and a finishing grinding step. When the grinding in each step... | 09/11/2007 |
| 7251971 | Method for regulating the temperature of strip metal The invention relates to a method for controlling or regulating the temperature of a metal strip in a cooling path of a hot rolling system. A desired temperature gradient is compared to an actual temperature gradient in order to determine adjusting signals for the c... | 08/07/2007 |
| 7234999 | Method for estimating polishing profile or polishing amount, polishing method and polishing apparatus A polishing method can automatically reset polishing conditions according to a state of a polishing member based on data on a polishing profile changing with time, thereby extending life of the polishing member and obtaining flatness of a polished surface with highe... | 06/26/2007 |
| 7226340 | Grinding machine The grinding machine (10) according to the invention serves in particular for the machining or production of tools. It comprises a machine bed 11 and a workpiece spindle (14) arranged thereon, which receives the workpiece (13) to be machi... | 06/05/2007 |
| 7208112 | Concrete block and method of making same Molds and processes that permit high-speed, mass production of retaining wall blocks having patterned or other processed front faces, as well as retaining wall blocks formed by such processes. The invention permits the front face of the block to be impressed with a ... | 04/24/2007 |
| 7201631 | Automatic or semi-automatic device for trimming an ophthalmic lens Device comprising in combination: elements for detecting (4) characteristics of a lens; elements for integrating characteristics representing a patient's morphology; a support (3) of the mobile lens along a predetermined trajectory between a first meas... | 04/10/2007 |
| 7196018 | Semiconductor etching paste and the use thereof for localized etching of semiconductor substrates A method of etching a semiconductor substrate is described, the method comprising the steps of applying a paste containing an etchant to the substrate, and carrying out a thermal processing step to etch a part or a layer of the substrate where the paste has been app... | 03/27/2007 |
| 7191030 | Method for estimating the angular offset, method for calibrating a grinding machine for opthalmic glasses and device for carrying out said calibrating method The invention relates to a method for estimating the angular offset between a rotating radial axis linked to a glass which is to be ground and a reference rotating radial axis which can be applied to a grinding machine for ophthalmic glasses. Said method comprises t... | 03/13/2007 |
| 7179536 | Optical element having a low surface roughness, an optical pickup device including the optical element, and a die for making the optical element An optical pickup device for recording and/or reproducing information in an optical information recording medium, comprises a light source to emit light flux having a central wavelength not longer than 500 nm; a converging optical system to converge the light flux e... | 02/20/2007 |
| 7164964 | Method for producing an aspherical optical element The invention relates to a program-controlled NC data generating method for controlling a CNC wet-grinding machine for machining workpieces made of optical materials to produce aspherical forms, the data of the aspherical forms to be ground being overlaid with corre... | 01/16/2007 |
| 7155973 | Method and apparatus for balancing A balancer assembly 10 which automatically provides balancer limits, which achieves a balancing state while substantially minimizing short term vibration increases and which provides for multi-plane balancer dithering. ... | 01/02/2007 |
| 7150673 | Method for estimating polishing profile or polishing amount, polishing method and polishing apparatus A polishing method can automatically reset polishing conditions according to a state of a polishing member based on data on a polishing profile changing with time, thereby extending life of the polishing member and obtaining flatness of a polished surface with highe... | 12/19/2006 |
| 7142942 | Method of producing a design on a terracotta container having a glazed surface portion This invention relates to a method of producing designs on terracotta containers, the surfaces of which have been at least partly covered with a glaze. In the method, the glaze is cut through and is cut, grinded, or etched away with glass cutting tools to expose the... | 11/28/2006 |
| 7118452 | Pneumatically actuated flexible coupling end effectors for lapping/polishing Methods and apparatus for end effectors for performing surface lapping using a robotic system are provided. In one embodiment, a lapping system includes a robotic arm and a pneumatic end effector unit. The pneumatic end effector unit includes a first base attached t... | 10/10/2006 |
| 7103441 | Calibration procedures and such using an erosion and grinding machine A method for calibration of grinding and/or erosion machines assumes an initial calibration process and corresponding re-calibration processes. Calibration of the machine is performed with a reference piece and a reference tracer in an initial calibration process. G... | 09/05/2006 |
