Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
PatentStorm News
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 |
| 7323813 | Cathode ray tube Assuming an aperture diameter of an electron beam aperture formed in a shield cup as Vsc, an aperture diameter of an electron beam aperture formed in an inner electrode of a focusing electrode as V5, and a distance between the electron beam aperture formed in... | 01/29/2008 |
| 7265485 | Electron gun assembly for cathode ray tube An electron gun assembly for a cathode ray tube includes a cathode for emitting an electron beam, and a plurality of electrodes mounted in a row with predetermined gaps therebetween. The electrodes include a focus electrode for receiving a focus voltage, and an anod... | 09/04/2007 |
| 7148614 | Electron gun for cathode ray tube An electron gun for a cathode ray tube comprises a triode including a cathode, a control electrode and an accelerating electrode, a pre-focusing electrode unit adjacent to the triode, a main lens unit including a focusing electrode and an anode for forming a main le... | 12/12/2006 |
| 7135813 | Color Braun tube apparatus with non-circular electron beam passage aperture A main lens is formed by a focus electrode, an intermediate electrode, and an anode electrode successively arranged in a traveling direction of an electron beam. The focus electrode and the anode electrode respectively have an electron beam passage aperture common t... | 11/14/2006 |
| 7122977 | Cathode-ray tube apparatus A prefocus lens section is formed by a screen electrode and an additional electrode. A main lens section is formed by a focus electrode, an anode electrode and an intermediate electrode that is disposed between the focus electrode and the anode electrode. Each of th... | 10/17/2006 |
| 7109483 | Method for inspecting substrate, substrate inspecting system and electron beam apparatus The present invention relates to a substrate inspection apparatus for inspecting a pattern formed on a substrate by irradiating a charged particle beam onto the substrate. The substrate inspection apparatus comprises: an electron beam apparatus including a charged p... | 09/19/2006 |
| 7045976 | High definition electron gun for cathode ray tube Electron gun for cathode ray tube comprising aligned in series along an axis XX′ an electron-emitting cathode K, electrodes G1 and G2 for the formation of an electron beam, a prefocusing electron lens G3, G4, G5, a first quadripo... | 05/16/2006 |
| 7005801 | Projection type cathode ray tube having improved focus characteristics A projection type cathode ray tube includes a phosphor screen, a cathode, G1, G2 and a main lens composed of first, second and third electrodes. The first and third electrodes are supplied with an anode voltage of the phosphor screen, and the second electrode is sup... | 02/28/2006 |
| 6998611 | Electron beam apparatus and device manufacturing method using same An electron beam apparatus is provided for reliably measuring a potential contrast and the like at a high throughput in a simple structure. The electron beam apparatus for irradiating a sample, such as a wafer, formed with a pattern with an electron beam to evaluate... | 02/14/2006 |
| 6992307 | Electron beam source and electron beam exposure apparatus employing the electron beam source An electron gun is composed of a hemispherical cathode (1) and a second bias electrode (8) having apertures (9, 7, 11) along an optical axis of an electron beam fired from the electron gun, a first bias electrode (6) and an anode (10 | 01/31/2006 |
| 6987367 | Cathode-ray tube A prefocus lens section in an electron gun assembly includes a second grid that is disposed on an electron beam generating section side, a third grid that is disposed on a main lens section side, and a shield grid that is disposed between the second grid and the thi... | 01/17/2006 |
| 6971766 | Redundant aperture lamp system An aperture lamp system that facilitates improved reliability and performance in a display system is provided. The aperture lamp system provides improved reliability by providing a second lamp coupled to a first lamp through a coupling aperture. When the first lamp ... | 12/06/2005 |
| 6952077 | Electron gun for cathode ray tube An electron gun for a cathode ray tube includes a cathode for radiating electron beams, a scanning velocity modulation coil for synchronizing the electron beams with an image signal, a focus electrode having first and second sub-electrodes disposed with a gap throug... | 10/04/2005 |
| 6917151 | Resistor for electron gun assembly, electron gun assembly, and cathode-ray tube A resistor for an electron gun assembly is configured to apply a voltage, which is divided with a predetermined resistance division ratio, to an electrode provided in the electron gun assembly. The resistor includes an insulating substrate, an electrode element prov... | 07/12/2005 |
| 6903501 | Electron gun assembly for cathode ray tube An electron gun for a monochrome cathode ray tube to be used in a projection display device includes a cathode for emitting thermal electrons, and first and second electrodes forming a triode portion together with the cathode. A third electrode is adjacent the secon... | 06/07/2005 |
| 6841924 | Low-voltage high-resolution einzel gun A low voltage Einzel gun design maximizes the size of the second main lens to reduce spherical aberrations thereby reducing spot-size and improving focus quality. The gun's final accelerator electrode is formed as an internal conductive coating on the neck, which is... | 01/11/2005 |
| 6815913 | Cathode ray tube The present invention provides a cathode ray tube which exhibits a favorable contrast by enhancing a speed modulation effect. A front-stage anode electrode and a focus electrode which constitute an electron gun are respectively divided into a plurality of portions. ... | 11/09/2004 |
| 6798129 | Electron gun having improved electrode support structure An electron gun for a CRT includes a pair of bead glasses separated from and parallel to each other, supporting electrodes of the electron gun. An electrode has electron beam passing holes and at least one electrode support embedded in each bead glass. The electrode... | 09/28/2004 |
| 6794807 | Electron gun for cathode ray tube An electron gun for a cathode ray tube includes a single cathode that emits thermions; first and second electrodes; a plurality of focus electrodes provided consecutively after the second electrode; an anode electrode mounted after a final focus electrode; and a sup... | 09/21/2004 |
| 6741020 | Cathode ray, tube including an electron gun having specific relation of axial length of focus electrode and focus electrode-screen distance A cathode ray tube has an anode and a focus electrode. The large-diameter cylinder portion of the focus electrode is disposed concentrically within a large-diameter cylinder portion of the anode. The anode and a first electrode facing a cathode side end of the focus... | 05/25/2004 |
| 6731056 | Color cathode ray tube having an improved electron gun A color cathode ray tube having at least an electron gun, constituted by a cathode for forming a plurality of electron beams arranged in-line, and a focusing electrode and an anode constituting a main lens for focusing and accelerating the electron beams and a fluor... | 05/04/2004 |
| 6720726 | Color cathode ray tube In an electron gun assembly, its main convergence lens is composed of a focus electrode to which a focus voltage is applied, an anode electrode to which a high anode voltage is applied, and an intermediate electrode which is provided between the focus and anode elec... | 04/13/2004 |
| 6710532 | Electron gun in color CRT An electron gun is provided for a CRT. The electrode gun includes three cathodes for emitting electron beams, a plurality of acceleration electrodes, and a focus electrode and an anode. The focus electrode and the anode each include an opposite rim having a single e... | 03/23/2004 |
| 6703775 | Color cathode ray tube apparatus with an electron gun having an intermediate electrode In an electron gun for a color cathode ray tube apparatus of this invention, one intermediate electrode is arranged between a final acceleration electrode and a focus electrode that make up a main lens, and a voltage divided by a voltage dividing resistor... | 03/09/2004 |
| 6696780 | Electron gun comprising a tubular electrode having a coiled portion formed therein An electron gun that can provide a desired electron beam modulation effect without preventing a modulation magnetic field from passing from an exterior of the vacuum portion is provided. A part of a tubular G3 electrode in an electron gun is formed into a... | 02/24/2004 |
| 6693398 | Electron gun for CRT The present invention relates generally to an electron gun for a color cathode ray tube, and more particularly to an electron gun for achieving an excellent focus characteristic on the whole screen by forming a dynamic quadruple lens in the electron gun u... | 02/17/2004 |
| 6661166 | Electron gun and cathode-ray tube A cathode includes emitter tips provided on a substrate, a gate electrode with an electric field formed between the gate electrode and the emitter tips, and terminals and leads for supplying voltages to the emitter tips and the gate electrode, respectivel... | 12/09/2003 |
| 6624562 | Color cathode ray tube having an improved electron gun Each of an anode and one of the sub-electrodes of a main lens of a shadow mask color cathode ray tube includes a first member having a single opening in their facing ends, and a second member having three beam apertures, wherein is satisfied, where A is V... | 09/23/2003 |
| 6593686 | Electron gun and electron beam drawing apparatus using the same An electron gun according to this invention includes a cathode having a hemispherical electron-emitting surface, an anode which is arranged to face the cathode, and has a first aperture on the optical axis, and a bias electrode which is arranged between t... | 07/15/2003 |
| 6586868 | Color cathode-ray tube apparatus with multi-lens electron focusing and yoke deflection An electron gun structure applied to a color cathode-ray tube comprises a focus electrode, an ultimate acceleration electrode and at least one intermediate electrode disposed between the focus electrode and the ultimate acceleration electrode, the focus e... | 07/01/2003 |
| 6583547 | Cathode ray tube with UPF type electron gun having particular electrode structure and spacing A lens structure of a pre-focus part of an Hi-UPF electron gun to be used for a cathode ray tube has a cathode, a control electrode, an acceleration electrode, a first anode, a focus electrode and a second anode arranged in this order. The first anode and... | 06/24/2003 |
| 6570314 | Color display tube A vertical electrode plate having three openings formed in-line through which three electron beams pass respectively is provided only inside a focusing electrode out of the focusing electrode and a final accelerating electrode. A horizontal electrode plat... | 05/27/2003 |
| 6559586 | Color picture tube including an electron gun in a coated tube neck A cathode ray tube and a plural beam electron gun therefor include a main lens that comprises a tubular focus grid G5 and a conductive coating on the inner surface of the tube neck. The neck coating extends from the region of focus grid G5 towards the fac... | 05/06/2003 |
| 6538397 | Color cathode-ray tube apparatus A color cathode-ray tube apparatus comprises an electron gun structure having a plurality of electrodes for constituting a plurality of electron lenses including a main lens for focusing an electron beam on a phosphor screen, and a deflection yoke for pro... | 03/25/2003 |
| 6522057 | Electron gun for cathode ray tube The screen electrode in an electron gun for use in a cathode ray tube has multi-stage apertures such that the entrance area of an aperture is larger than the exit area. This has an effect of smaller screen electrode apertures with a result of increased pr... | 02/18/2003 |
| 6507143 | Cathode ray tube including an electron gun having specific relation between axial length of focus electrode and lens-screen distance A cathode ray tube has an anode of a large-diameter cylinder portion on its phosphor screen side and a small-diameter cylinder portion on its cathode side connected together, and a focus electrode formed of a large-diameter cylinder portion of a diameter ... | 01/14/2003 |
| 6492767 | Electron gun for color cathode ray tube An electron gun for a color cathode ray tube includes a first electrode, a second electrode and a third electrode. A waveform alternating voltage or a static voltage is applied to the first electrode in which three vertical slot type electron beam passing... | 12/10/2002 |
| 6479926 | Cathode ray tube The electron gun of a cathode ray tube comprises a main electron lens portion consisting of at least four electrodes arranged in the order of first grid (5), second grid (6), third grid (7) and fourth grid (8). An intermediate first voltage and an anode v... | 11/12/2002 |
| 6472832 | Cathode ray tube A sixth grid, which is part of a main electron lens section, is made up of a first anode, an auxiliary electrode and a second anode. A fifth grid is applied with an intermediate voltage. The first and second anodes are applied with an anode voltage. An in... | 10/29/2002 |
| 6445116 | Color cathode ray tube having an improved electron gun A color cathode ray tube includes a three-color phosphor screen, a shadow mask spaced from the phosphor screen and a three-beam type electron gun. The main lens section includes a focus electrode and an anode facing the focus electrode, each of the focus ... | 09/03/2002 |
