...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 8107591 | X-ray tube with a catching device for backscattered electrons, and operating method therefor An x-ray tube has a cathode and a anode, and a catching device that captures backscattered electrons from the anode in the operating state of the x-ray tube. The catching device minimizes unwanted energy generation by the backscattered electrons in the catching devi... | 01/31/2012 |
| 7983395 | Rotation anode X-ray tube There are provided an anode target which generates X-rays due to electrons e being incident, an emitter source which emits electrons e to be incident into the anode target, a ring-shaped recoil electron capturing structure which surrounds an orbit of electrons e hea... | 07/19/2011 |
| 7869572 | Apparatus for reducing kV-dependent artifacts in an imaging system and method of making same An x-ray tube includes a vacuum chamber, a cathode positioned within the vacuum chamber and configured to emit electrons, and an anode positioned within the vacuum chamber to receive the electrons emitted from the cathode and configured to generate a beam of x-rays ... | 01/11/2011 |
| 7796737 | Apparatus for reducing KV-dependent artifacts in an imaging system and method of making same An x-ray tube includes a cathode positioned within a vacuum chamber and configured to emit electrons. The x-ray tube includes an anode positioned within the vacuum chamber to receive electrons emitted from the cathode and configured to generate a beam of x-rays from... | 09/14/2010 |
| 7720199 | X-ray tube and X-ray source including same The present invention relates to an X-ray tube, having a structure for effectively suppressing discharge at a tip of an anode, irradiated with electrons in order to generate X-rays, and an X-ray source including the X-ray tube. In the X-ray tube, electrons emitted f... | 05/18/2010 |
| 7688949 | X-ray tube cooling system X-ray tube cooling systems. In one example embodiment, an x-ray tube includes a housing, a window frame attached to the housing, and a window attached to the window frame. The housing defines an aperture through which electrons can pass from a cathode to an anode. T... | 03/30/2010 |
| 7680248 | X-ray tube and X-ray analyzing apparatus To be able to achieve further small-sized formation and light-weighted formation and to promote a sensitivity by further efficiently detecting a fluorescent X-ray or the like in an X-ray tube and an X-ray analyzing apparatus, there are provided a vacuum cabinet 2... | 03/16/2010 |
| 7668297 | X-ray tube and nondestructive inspection equipment In an X-ray tube 1A that makes electrons emitted from an electron gun 17 into a target 9 of an anode 8 arranged in a tubular vacuum enclosure body 6, and extracts the X-rays through an X-ray exit window 18, the anode 8 | 02/23/2010 |
| 7660393 | Gas tight radiation window, and a method for its manufacturing A gas tight radiation window membrane comprises a layered diffusion barrier with a reactive metal layer (201) covered on both sides by cover layers (202, 203). An originally continuous carrier layer (101) can be made a mesh that has openings coi... | 02/09/2010 |
| 7627088 | X-ray tube and X-ray analysis apparatus A vacuumed enclosure has a window formed of an X-ray transmissive material. The vacuumed enclosure encloses an electron beam source for generating an electron beam and a target which, irradiated by the electron beam, generates a primary X-ray. The target is smaller ... | 12/01/2009 |
| 7616736 | Liquid cooled window assembly in an x-ray tube Liquid cooled window assembly for an x-ray tube. In one example embodiment, an x-ray tube window assembly includes an x-ray tube window frame that defines an opening and an x-ray tube window configured to be attached to the x-ray tube window frame. When the x-ray tu... | 11/10/2009 |
| 7526069 | X-ray tube The present invention relates to an X-ray tube capable of efficiently extracting X-rays of low energy and provided with a structure having excellent durability. The X-ray tube is provided with a silicon foil having a thickness of 3 μm or more but 30 μm or less as ... | 04/28/2009 |
| 7466799 | X-ray tube having an internal radiation shield A shielding disk for managing x-ray emission form a stationary anode x-ray tube is disclosed. The stationary anode x-ray tube includes an anode housing and a stainless steel can that together form an evacuated enclosure and respectively contain a stationary anode an... | 12/16/2008 |
| 7443958 | Electron window for a liquid metalanode, liquid metal anode, X-ray emitter and method for operating such an X-ray emitter of this type The invention relates to an electron window 1 for a liquid-metal anode 2 in the form of a membrane 4. It is provided according to the invention that the electron window 1 has ridges 10 and depressions 11. In addition, the in... | 10/28/2008 |
| 7430279 | Rotating envelope x-ray tube A rotating envelope tube has a housing which with an x-ray exit window that is essentially transparent for x-ray radiation. To improve the mechanical stability, the x-ray exit window internally exhibits a structure through which cooling fluid can flow. ... | 09/30/2008 |
| 7403596 | X-ray tube housing window An x-ray transmissive housing window for reducing non-uniform attenuation of x-rays in a rotationally driven x-ray device is disclosed. The x-ray tube is disposed within an interior portion of an outer housing that is filled with cooling fluid. An x-ray beam produce... | 07/22/2008 |
| 7397898 | X-ray generator and method An x-ray tube comprises an envelope, an anode target rotatably mounted within the envelope, and a cathode and window assembly mounted within the envelope and spaced relative to the anode. The cathode and window assembly includes an electrically insulative ceramic ba... | 07/08/2008 |
| 7386096 | Method of manufacturing a window transparent for electrons of an electron beam in particular of an X-ray source The present invention relates to a method of manufacturing a window transparent for electrons of an electron beam (E), in particular of an X-ray source. In order to enable a less costly and elaborate manufacture of such a window and in order to prevent unwanted shar... | 06/10/2008 |
| 7359486 | Structure for collecting scattered electrons A structure for collecting scattered electrons within a substantially evacuated vessel containing both an electron-emitting cathode and an electron-attracting anode is disclosed herein. The electron-collecting structure includes a two-sided first plate, a two-sided ... | 04/15/2008 |
| 7349660 | Low mass fuser apparatus with substantially uniform axial temperature distribution An energy transfer device may include a fuser roll, a pressure roll, the pressure roller and the fuser roll being part of a marking system, and a heat pipe, the heat pipe being in contact with at least one of the fuser roll and the pressure roll. A method of using a... | 03/25/2008 |
| 7330534 | Ray beam guiding apparatus and ray inspection system having the same The present invention discloses a ray beam guiding apparatus, comprising a ray beam guiding box having substantially fan-shaped top and bottom surfaces, defining an inner space, and having open wide and narrow ends; an engaging member joined to the narrow end of the... | 02/12/2008 |
| 7324630 | X-ray irradiation apparatus An X-ray irradiation apparatus includes an enclosure and an X-ray beam system positioned within the enclosure for directing X-ray beams into an irradiation region. The X-ray beam system has more than one X-ray beam emitter for directing the X-ray beams into the irra... | 01/29/2008 |
| 7302044 | X-ray generator tube comprising an orientable target carrier system The field of the invention is that of X-ray generator tubes. The invention relates more specifically to the arrangement of the emitting surfaces which are the source of the X-ray radiation. It is known that the inclination of the emitting surface known as the target... | 11/27/2007 |
| 7290929 | Mounting system for an X-ray tube A mounting assembly for supporting an evacuated enclosure within an outer housing of an x-ray tube is disclosed. The mounting assembly comprises a clamp portion having a C-shaped configuration, and a bracket portion having a circular recess that receives at least a ... | 11/06/2007 |
| 7289603 | Shield structure and focal spot control assembly for x-ray device A shield structure and focal spot control assembly is provided for use in connection with an x-ray device that includes an anode and cathode disposed in a vacuum enclosure in a spaced apart arrangement so that a target surface of the anode is positioned to receive e... | 10/30/2007 |
| 7284905 | X-ray radiator, x-ray device and computed tomography apparatus with focus position determining capability An x-ray radiator has a radiator housing from which x-ray radiation originating from a focus is emitted. A pre-diaphragm is disposed in the beam path of the x-ray radiation and has a diaphragm opening in or on the radiator housing. The pre-diaphragm is provided with... | 10/23/2007 |
| 7266179 | X-ray radiator with collimated focal spot position detector An x-ray radiator with an anode accommodated in a housing such that it can rotate around an axis has a device for determination of the position of an x-ray-emitting focal spot on the anode. To increase the measurement precision, the device includes a collimator alig... | 09/04/2007 |
| 7260181 | Enhanced electron backscattering in x-ray tubes An x-ray tube (24) includes an anode (42) defining a target. A cathode assembly (40) is in operative relationship with the anode to produce x-rays (56). An evacuated envelope (35) encloses the anode and cathode. The evacuated envel... | 08/21/2007 |
| 7252433 | X-ray apparatus with radiation shielding that accepts an unshielded x-ray radiator therein An x-ray apparatus that accepts an x-ray radiator therein has shielding for the x-ray leakage radiation originating from the x-ray radiator that is an Integral component of (built into) the x-ray apparatus. An x-ray radiator with an x-ray tube and a housing in which... | 08/07/2007 |
| 7233647 | Radiation window and method of manufacture A radiation window device to transmit radiation as part of an x-ray source or detector includes a support to be subject to a substantial vacuum, and an opening configured to transmit radiation. A film is mounted directly on the support across the opening, and has a ... | 06/19/2007 |
| 7231073 | Medical image processing apparatus with a function of measurement on a medical image A medical image processing apparatus processes a medical image resulting from a medical image equipment. The apparatus comprises an interface, a processor, and a calculator. The interface is configured to obtain the medical image. The processor is configured to dete... | 06/12/2007 |
| 7218707 | High-voltage vacuum tube High voltage vacuum tube (9) with an anode (3) and a cathode (4), the anode (3) and/or the cathode (4) being electrically insulted by means of an annular insulator (21/22). The annular insulator (21/22) is designed ar... | 05/15/2007 |
| 7206380 | X-ray apparatus An X-ray apparatus includes a rotation-anode type X-ray tube which is configured such that a rotatable anode target and a cathode that is disposed to be opposed to the anode target are accommodated within a vacuum envelope, a stator which generates an induction elec... | 04/17/2007 |
| 7206379 | RF accelerator for imaging applications The present invention is an RF cavity for accelerating electrons in imaging applications such as x-ray tubes and CT applications. An RF cavity having electron emitters placed therein accelerates the electrons across the cavity. The geometric shape of the cavity dete... | 04/17/2007 |
| 7203283 | X-ray tube of the end window type, and an X-ray fluorescence analyzer In an x-ray tube comprising a housing, which define an enclosure, a cathode arrangement, which emits electrons within the enclosure, and a window, which seals an end of the enclosure, the window comprises a carrier layer and, on a side of the carrier layer that face... | 04/10/2007 |
| 7203280 | X-ray apparatus The present invention relates to an X-ray apparatus comprising an electron radiation source which generates an electron to an anode, a shaft which rotatably supports the anode, a stator which generates a force to rotate a rotor shaft, an enclosure which maintains at... | 04/10/2007 |
| 7197118 | X-ray apparatus The present invention is characterized by supporting a stator to generate a magnetic field and an anode target by a dynamic pressure plain bearing using a liquid metal, and cooling at least the inside of the dynamic pressure plain bearing and an enclosure containing... | 03/27/2007 |
| 7186021 | Method and system for controlling temperatures in an x-ray imaging environment Certain embodiments of the present invention provide a system for controlling temperatures in an x-ray imaging environment including: a first component capable of operating within a first temperature range; a second component capable of operating within a second tem... | 03/06/2007 |
| 7174001 | Integrated fluid pump for use in an x-ray tube An integrated fluid pump for use in circulating a coolant in an x-ray tube is disclosed. The pump includes a pump body, a pump head, and a motor. The pump head defines a pump volume and further includes a fluid inlet, a fluid outlet, and an impeller positioned in th... | 02/06/2007 |
| 7162881 | Thermophoretic wand to protect front and back surfaces of an object Methods and apparatus for enabling a clean, fragile object to be transported while protecting both front and back surfaces of the object are disclosed. According to one aspect of the present invention, a thermophoretic wand that is arranged to carry an object having... | 01/16/2007 |