...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!!
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7388178 | Rapid thermal response induction heating system for platen embossing An induction heating system for the manufacturing of optical memory microstructure, wherein the thermal cycle allows the process web to be rapidly heated to the relaxation and re-flow temperature, followed by cooling to the optimum separation temperature in under 10... | 06/17/2008 |
| 7355149 | Coil unit, process for producing the same, and image heating apparatus An electromagnetic induction coil unit for use with an electromagnetic induction heating-type image heating apparatus includes magnetic flux generation means comprising an exciting coil and a magnetic core; a core holder for holding the magnetic core; a coil holder ... | 04/08/2008 |
| 7253380 | Induction heating of rail welds An apparatus (10) and method for preheating welds uses a centered induction plate (12) having preferably a plurality of induction coils (30, 32) to impart the generation of heat in the materials to be welded (14), being interactively cont... | 08/07/2007 |
| 7251446 | Fuser and image forming apparatus To control a surface temperature of a heating element to be an appropriate fusing temperature, a fuser comprises a supporter having a core metal at least, a heating element supported by the supporter, a magnetic field generator for generating a magnetic field to ren... | 07/31/2007 |
| 7234500 | Cutting device A cutting device (10) for cutting a material (12) and providing a cut portion of the material (12). The device comprises a heating assembly comprising an electrical induction arrangement (32) for heating the cut portion of the material by... | 06/26/2007 |
| 7205512 | Fixing device using induction heating An electrophotography fixing device has a heating roller and an induction heating device. In order to improve heat resistance, heat radiating performance and insulation performance and in order to appropriately uniformly heat the heating roller, in the induction hea... | 04/17/2007 |
| 7183526 | Apparatus and method for heating works uniformly through high frequency induction coils A high frequency induction-heating device 3 of the apparatus 1 for heating work includes a pair of opposite work coils accommodated within the coil casings 17 and 19 respectively. The casings 17 and 19 can be displaced in a ... | 02/27/2007 |
| 7145115 | Apparatus for hardening a cylindrical bearing on a shaft by means of induction heating utilizing an elastic element An apparatus for hardening cylindrical bearing locations on a shaft, in particular a crankshaft, in which transition radii to the adjacent shaft parts are of undercut design, is provided with a heating unit, which is connected to a power supply, and with an inductor... | 12/05/2006 |
| 7145116 | Induction heating coil An induction heating coil having little high-frequency loss and producing little hast is easily manufactured by covering a conductor with a first insulating material to form a wire, then bundling and twisting such wires to form a stranded wire, covering the outer su... | 12/05/2006 |
| 7129450 | Method and device for manufacturing packages A method and a device for manufacturing packages are provided. The method comprises providing a tubular first package part of a sheet of thermoplastic coated packaging material including at least one layer of an induction heatable material. The first package part ha... | 10/31/2006 |
| 7126095 | Frying hob arrangement with induction heating A frying arrangement includes a planar heating element (5) including a ferromagnetic material and constituting a frying surface. The arrangement includes at least two magnetic field generators (1, 2) each having two free ends, wherein the heating eleme... | 10/24/2006 |
| 7122770 | Apparatus for delivery of induction heating to a workpiece A method and apparatus for inducing heat within a workpiece. A flexible fluid-cooled induction heating cable is used to produce a magnetic field to induce electric current in a workpiece. The induction heating cable has separate fluid and electrical connectors to se... | 10/17/2006 |
| 7115846 | Shrinking arrangement for tool holder having an induction-heating arrangement A shrinking arrangement for a tool holder is provided which retains a rotary tool with a press fit in a central accommodation opening. The arrangement includes an induction-heating arrangement for thermally expanding the tool holder in the region of the accommodatin... | 10/03/2006 |
| 7105783 | Fixing device using induction heating In a fixing device according to this invention, coils are formed on a coil bobbin having a predetermined shape at an induction heating portion including a plurality of coils. In order to minimize the temperature difference of a heating roller in the axial direction,... | 09/12/2006 |
| 7087869 | Transverse induction heating apparatus In a transverse induction heating apparatus in which a material to be rolled is heated by inductors to which electric power is supplied from an AC power source, iron core widths of the inductors in a plate width direction of the material to be rolled are smaller tha... | 08/08/2006 |
| 7038178 | Image heating apparatus of electromagnetic induction heating type The image heating apparatus includes a heating member, a first coil unit having a first holder in which a first excitation coil is sealed, the first excitation coil being provided for generating a magnetic field to induce an eddy current in the heating member, and a... | 05/02/2006 |
| 7034261 | Image heating apparatus of electromagnetic induction heating type The image heating apparatus includes a heating member, a first coil unit having a first holder in which a first excitation coil is sealed, the first excitation,coil being provided for generating a magnetic field to induce an eddy current in the heating member, and a... | 04/25/2006 |
| 6946629 | Induction heating type fixing device for an image forming apparatus and induction heating coil therefor An induction heating type fixing device for an electrophotographic image forming apparatus is disclosed. An inducting heating coil has a plurality of bobbins each having a particular diameter and assembled in a telescopic manner. A particular conductor is wound roun... | 09/20/2005 |
| 6907796 | Temperature-controlled injector for a chemical analysis unit The invention relates to a temperature-controlled injector for a chemical analysis unit, in particular a gas chromatograph, comprising an injector tube, which can be received by a receiving tube, having a cooling system, which surrounds the receiving tube, through w... | 06/21/2005 |
| 6894256 | Apparatus in the production of a package or a packaging material An apparatus in the production of a package or a packaging material comprising at least one metal layer and one polymer layer, the apparatus including an inductor connectable to a high frequency current source. According to the invention, said inductor includes a co... | 05/17/2005 |
| 6875966 | Portable induction heating tool for soldering pipes A portable induction tool is provided for soldering or brazing sections of metal pipe together. A work coil head (with induction coil) is U-shaped, allowing placement of the head around lengths of pipe, heating a susceptor (e.g., the pipe) to form a joint, and then ... | 04/05/2005 |
| 6765181 | Inductor assembly An apparatus and process are provided for induction heat treatment of electrically conductive workpieces. The inductor assembly is formed from a single piece inductor that utilizes an electrically non-conductive top, side and bottom frames to hold flux concentrators... | 07/20/2004 |
| 6764818 | Device for effecting heat transfer with a solution held in a through-hole well of a holding tray A holding plate for selectively heating and cooling samples in a solution has two opposing surfaces, and a plurality of cylindrically-shaped through-hole wells for holding the samples. Each well extends between the two surfaces of the holding plate, and has an aspec... | 07/20/2004 |
| 6753515 | Induction heating type fixing device for an image forming apparatus and induction heating coil therefor An induction heating type fixing device for an electrophotographic image forming apparatus is disclosed. An inducting heating coil has a plurality of bobbins each having a particular diameter and assembled in a telescopic manner. A particular conductor is wound roun... | 06/22/2004 |
| 6734406 | Method for improving the mechanical properties of journal crosses by induction heating The invention relates to a method for improving the mechanical properties, especially the hardness, of journal crosses for use in articulated shafts. According to the invention, a superficial area which is defined by the transition surfaces between two journals that... | 05/11/2004 |
| 6713734 | Image heating apparatus for heating image formed on recording material An image heating apparatus has an excitation coil for generating a magnetic field and a heating member for dissipating heat by an eddy current induced in the heating member by that magnetic field. A core is provided for guiding the magnetic field and the core includ... | 03/30/2004 |
| 6689993 | Method and device for induction heating a roll A device for heating a roll in a paper or paperboard machine or in a finishing machine for paper or paperboard the device including a profiling induction heater (5) which is arranged to heat the roll (3) with a power dependent on the location of the point... | 02/10/2004 |
| 6670590 | Eddy current/hysteretic heater apparatus The method and apparatus are for use in automotive vehicle repair, both mechanical and body. The apparatus includes at least an eddy current/hysteretic circuit and at least one applicator functionally engaged to the circuit for obtaining a desired result ... | 12/30/2003 |
| 6646239 | Fixing device using induction heating A fixing device uses induction heating for causing alternating current to pass through an electromagnetic induction coil, whereby the fixing device is provided within an endless member such as a roller. The fixing device includes a core having a curved su... | 11/11/2003 |
| 6582659 | Equipment for clinical examination A clinical test apparatus includes a reaction table (1) for placing a test piece thereon for reaction of the test piece with an analyte at a predetermined temperature to perform analysis. The clinical test apparatus includes a primary coil (3) fixed, as m... | 06/24/2003 |
| 6570141 | Transverse flux induction heating of conductive strip In transverse flux induction heating of electrically conductive strip, conductors that cross the strip width are stacked, or connected, such that a multiple of the induced current flows across the strip width as compared to that which flows along the stri... | 05/27/2003 |
| 6498328 | Transverse flux induction heating device with magnetic circuit of variable width A heating device for the electromagnetic induction heating of a metal strip traveling in a specified direction. The device includes at least one electric coil arranged opposite at least one of the large surfaces of the strip so as to heat the latter by tr... | 12/24/2002 |
| 6495810 | Fixing device using induction heating as a heating source A fixing device comprising an endless heating member which is adapted to be contacted with a fixable member to thereby enable an image on the fixable member to be thermally fixed, an electromagnetic inductive coil member disposed close to the endless heat... | 12/17/2002 |
| 6476366 | Device for degassing and brazing preassembled vacuum interrupters using inductive heating A device for degassing and brazing preassembled vacuum interrupters in only one brazing operation includes a base plate having at least one brazing site which features an opening of the base plate for connecting a suction pump and a bell which covers the ... | 11/05/2002 |
| 6455824 | Fixing device using induction heating A fixing device is provided, the fixing device using induction heating for causing alternating current to pass through an electromagnetic induction coil, provided inside a heating roller made of a metal, to cause the heating roller to generate heat to hea... | 09/24/2002 |
| 6410895 | Induction heating coil unit for manifold in hot runner mold In an induction heating coil unit for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed ... | 06/25/2002 |
| 6399929 | Induction heater comprising a coil/capacitor bank combination including a translatable coil assembly for movement on and off a continuous strip A coil/capacitor combination useable as an induction furnace includes a reactive capacitor bank directly bolted to the coil and protected from coil fields by shields and heat sink plates. The coil includes a selectively openable switch for placing the coi... | 06/04/2002 |
| 6365884 | Segmented compressed induction heating coil assembly An induction heating coil assembly including modular cast refractory blocks (10, 12, 14, 16) encasing copper turns (24, 26). The blocks are configured so that the segmenting between blocks occurs at locations where refractory cracks have been prone to occ... | 04/02/2002 |
| 6362462 | Induction hardening coil for a crankshaft An first induction hardening coil assembly according to one embodiment of the present invention comprises a coil having a top surface, an underside surface, and an inner coil curvature disposed between the top surface and the underside surface. The inner ... | 03/26/2002 |
| 6340810 | Device with induction heating roller including projecting portions at both ends and a central portion of a bobbin for maintaining a gap between an inner surface of the heating roller and a coil on the bobbin A device configured to be heated to a temperature sufficient to fuse an image forming substance to a sheet includes a hollow roller made of a conductive material and a coil arranged in a hollow portion of the hollow roller. The coil is configured to carry... | 01/22/2002 |