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| Number | Title | Issue Date |
| 8174174 | Cathode structures for X-ray tubes An apparatus and method comprising a cathode structure which can be a cylindrical filament coiled in a helix or which can be constructed of a ribbon or other suitable shape. The cathode structure can be heated by passage of an electrical current, or by other means s... | 05/08/2012 |
| 7911121 | Incandescent lamp having an illuminant that contains a high-temperature resistant metal compound The invention relates to an incandescent lamp (1) which is provided with an illuminant (7) which is inserted in a bulb (2) together with a filling in a vacuum-tight manner, the illuminant (7) comprising a metal carbide that has a melting ... | 03/22/2011 |
| 7868530 | Filament electrode and fluorescent lamp The disclosed subject matter includes a filament electrode that can include a filament coil connected with a pair of lead wires with confidence. It is possible for a fluorescent lamp using the filament electrode to emit light with a wider range while located in a th... | 01/11/2011 |
| 7795792 | Cathode structures for X-ray tubes An apparatus and method comprising a cathode structure which can be a cylindrical filament coiled in a helix or which can be constructed of a ribbon or other suitable shape. The cathode structure can be heated by passage of an electrical current, or by other means s... | 09/14/2010 |
| 7438742 | Method and apparatus for preventing wear in an electrostatic precipitator An apparatus for preventing wear of an electrode holder on a discharge electrode frame of an electrostatic precipitator includes an electrically conductive member having a central portion generally contoured to a shape of an electrode holder. The apparatus is fasten... | 10/21/2008 |
| 7385338 | Cylindrical lamp employing internal reflector A lamp (10) comprising an hermetically sealed, cylindrical envelope (12) arrayed about a longitudinal axis (13); two filament supports (14, 16) sealed in the envelop; a filament (18) fixed between the filaments supports; and an int... | 06/10/2008 |
| 7375458 | Continuous carbon-nanotube filaments for radiation-emitting devices and related methods This disclosure relates to continuous carbon-nanotube filaments of radiation-emitting devices and methods for fabricating them. ... | 05/20/2008 |
| 7358689 | Phase-control power controller for converting a line voltage to a RMS load voltage A phase-control power controller converts a line voltage to an RMS load voltage and includes a phase-control clipping circuit that clips a load voltage to provide the RMS load voltage. The power controller may be in a base of a lamp and connected to a lamp terminal.... | 04/15/2008 |
| 7327829 | Cathode assembly An improved cathode assembly, including a filament for producing an electron stream having a highly uniform cross sectional density. The cathode assembly comprises a support base, a cathode cup affixed to the support base, and a filament disposed in a slot defined o... | 02/05/2008 |
| 7321188 | Light filament formed from carbon nanotubes A light filament (206) formed from carbon nanotubes is characterized by high mechanical strength and durability at elevated temperatures, a high surface area to volume ratio, and high emissivity. Additionally, electrical resistance of the light filament does ... | 01/22/2008 |
| 7301291 | Power controller having current limited RMS regulated output A power controller converts a line voltage to an RMS load voltage for a lamp, and includes a switch and a microcontroller that operates the switch to define the RMS load voltage. The microcontroller senses a load voltage of the lamp, compares the sensed load voltage... | 11/27/2007 |
| 7298073 | Electron tube with stepped fixing portion In a fluorescent display tube, a metal spacer is used as a height sustaining member and a fixing member of linear member so that the fixing strength of the linear member in the lengthwise direction is increased. In the fluorescent display tube, both ends of filament... | 11/20/2007 |
| 7280736 | Photonic crystal device A photonic crystal device according to the present invention includes: a first dielectric substrate 104 having a first lattice structure, of which the dielectric constant changes periodically within a first plane; a second dielectric substrate 105 havi... | 10/09/2007 |
| 7271530 | Filament for X-ray tube and X-ray tube having the same A filament for an X-ray tube has a varied wire diameter but has a constant coil outside diameter to obtain a good uniformity of the longitudinal temperature distribution of the filament. The filament has a wire diameter d which is gradually reduced from the longitud... | 09/18/2007 |
| 7268014 | Fabrication method of light emitting diode package The invention provides a fabrication method of an LED package for easily fabricating LED packages of excellent heat radiation characteristics. In the method, a metallic package substrate having a recess and a reflecting surface formed in the recess is prepared, and ... | 09/11/2007 |
| 7259515 | Lamp with anti-explosion device The invention relates to the field of lamps. An incandescent electric lamp comprises a bulb (100), current-conducting supply wires (103, 104), a filament (105) having turns (A to H) arranged in spiraling fashion around an axis of revolution (... | 08/21/2007 |
| 7238262 | System and method of coating substrates and assembling devices having coated elements A system and method of coating curved substrates and assembling devices having coated elements. The system and method are of particular utility in the manufacture of lamps having a coating formed on the hermetically sealed light emitting chamber of the lamp. The sys... | 07/03/2007 |
| 7230389 | Metal halide lamp having function for suppressing abnormal discharge A metal halide lamp includes a ceramic arc tube that is composed of a main body and two narrow tube parts provided at respective ends of the main body; a pair of electrodes provided inside the main body; two feeders, each being connected at one end thereof to a diff... | 06/12/2007 |
| 7227162 | Method and apparatus for providing tuning of spectral output for countermeasure devices A countermeasure device includes an emitter having a surface. A band gap material is integral with the surface of the emitter. A series of apertures are formed in the band gap material. A heat source for heating the emitter is provided proximate to the emitter and m... | 06/05/2007 |
| 7193368 | Parallel lamps with instant program start electronic ballast In a current fed electronic ballast multiple lamps are operated in a parallel circuit arrangement. The ballast provides pre-heating to the cathodes of the lamps for a period of time before an open circuit voltage is ramped up to the preferred starting voltage of the... | 03/20/2007 |
| 7180231 | Electron beam emitter A filament for generating electrons for an electron beam emitter where the filament has a cross section and a length. The cross section of the filament is varied along the length for producing a desired electron generation profile. ... | 02/20/2007 |
| 7169002 | Method of manufacturing a high-pressure discharge lamp For manufacturing a high-pressure discharge lamp, a tungsten electrode is welded to a molybdenum foil by bringing a shaft of tungsten electrode into close contact with the molybdenum foil, and by irradiating a laser light, having a metal melting wavelength, to a jun... | 01/30/2007 |
| 7157841 | Electron tube having linear damper An electron tube includes a vessel, a primary linear member installed in the vessel, an electrode disposed in the vessel, a first auxiliary linear member and a second auxiliary linear member disposed at different heights to interpose the primary linear member thereb... | 01/02/2007 |
| 7141761 | Printing device heating element and method of use thereof A printing apparatus may include a heating element with at least one of a contact fuser, a radiant fuser, a substrate preheater, an image bearing member heater, and a transfuser, the heating element including a lattice of filaments wherein the filaments are separate... | 11/28/2006 |
| 7130380 | Extractor cup on a miniature x-ray tube Methods for connecting electrical potential to an extractor cup at the cathode of a miniature x-ray tube are disclosed. The various connection schemes are designed to form a rugged and conveniently manufacturable connection between the metal extractor cup and one si... | 10/31/2006 |
| 7130381 | Extractor cup on a miniature x-ray tube Methods for connecting electrical potential to an extractor cup at the cathode of a miniature x-ray tube are disclosed. The various connection schemes are designed to form a rugged and conveniently manufacturable connection between the metal extractor cup and one si... | 10/31/2006 |
| 7066631 | Vehicular lamp A vehicular lamp has at least one headlamp having a headlamp reflector and a light source provided within a focal area of said headlamp reflector. In order to darken the appearance of the vehicular lamp the inner surface of the headlamp reflector is at least partial... | 06/27/2006 |
| 7064477 | Low power schottky emitter A low input power consumption, compact thermal field emitter is suitable for use in electron beam systems, particularly those systems that use an array of electron beams or a miniature electron beam system. The thermal field emitter design reduces heat loss by reduc... | 06/20/2006 |
| 7038381 | Halogen lamp and method of its manufacture A halogen lamp includes a pair of lead members, a filament bonded to and between the pair of lead members and a glass bulb encasing and sealing the filament and at least portions of the pair of lead members. The lamp further includes a support member made of non-con... | 05/02/2006 |
| 7012369 | System for attaching a filament to a current lead-in A filament assembly employs one set of primary filament coils (200) disposed in a spiral around one axis of revolution (220) is connected to one set of secondary filament coils (202) by a spacer (205) including at least two coils (205 | 03/14/2006 |
| 7005800 | Lamp with anti-explosion device An incandescent electric lamp includes a bulb, current-conductor wires, a filament having turns arranged in spiraling fashion around an axis of revolution, one end of the filament being connected to a conductor wire, a metal support connected to the other conductor ... | 02/28/2006 |
| 7002288 | Electron tube and method for producing the same An electron tube includes at least one metal film formed on a base, at least one linear member provided above the base, and at least one additional member for connecting said at least one linear member to said at least one metal film. The at least one linear member ... | 02/21/2006 |
| 6972236 | Semiconductor device layout and channeling implant process A device structure and method for forming graded junction using a implant process. Embodiments of the invention comprise implanting ions into said silicon substrate to form doped regions adjacent to said gate. The orientation of the channel region in the Si crystal ... | 12/06/2005 |
| 6856090 | Incandescent halogen lamp having flattened filament support leads An incandescent halogen lamp used in connection with a vehicle headlamp system in which stray light attributable to reflection off of internal lamp components is reduced while the structural integrity of the lamp is maintained. The halogen lamp includes two filament... | 02/15/2005 |
| 6856085 | Fluorescent luminous tube having specific support structure for wire shaped member A fluorescent luminous tube includes a vacuumed envelope having two base members, an anode and a cathode installed inside the vacuumed envelope, a first and a second metal layer formed on one of the two base members, a wire shaped member mounted inside the vacuumed ... | 02/15/2005 |
| 6856078 | Lamp filament design An improved support is provided for locating a lamp filament axially within a lamp sleeve. The illustrated support is a spiral coil that includes a small diameter center portion that makes contact with the filament. On either side of the filament-contacting portion,... | 02/15/2005 |
| 6812626 | Light source with matrix of microfilaments A light source composed of a planar, or substantially level, flat or curved, rigid or flexible, matrix of microfilaments integrated on a single substrate and capable of emitting light by incandescence when supplied by an electric current. ... | 11/02/2004 |
| 6803706 | Lamp with double layer coiled-coil filament The object of the invention is to provide an electric lamp with a coiled-coil filament, which is made more compact. An electric lamp 1 comprises a bulb 3 and a coiled-coil filament 2 accommodated in the bulb 3. According to the present in... | 10/12/2004 |
| 6800989 | Method of forming filament for electron beam emitter A filament for generating electrons for an electron beam emitter where the filament has a cross section and a length. The cross section of the filament is varied along the length for producing a desired electron generation profile. ... | 10/05/2004 |
| 6791247 | Lamp The lamp of the invention has three lead rods (6, 7, 8) and two filament structure bodies (13). Each of the two filament structure bodies has three filaments (13a, 13b, 13c). All the filaments (13a | 09/14/2004 |
