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Class 313/346R - Cathodes containing and/or coated with electron emissive material


Subclass of Class 313 - Electric lamp and discharge devices
Definition: Electrodes which are made at least in part of electron emissive
No. of patents: 559
Last issue date: 03/20/2012


1                      
NumberTitleIssue Date
8138662Electrode for a discharge lamp
An electrode for a discharge lamp (I) with a core (11) and a sheath (12), which surrounds at least regions of the core (11). The sheath (12) has, in the longitudinal direction (A), a continuous bore (121), which has a first diamete...
03/20/2012
7936118Light source apparatus comprising a stack of low pressure gas filled light emitting panels and backlight module
A light source apparatus applicable to a backlight module includes a cathode structure, an anode structure, a fluorescent layer, a secondary electron generation layer, and a low-pressure gas layer. The fluorescent layer is located between the cathode structure and t...
05/03/2011
7919912Electron emission source, composition for forming electron emission source, method of forming the electron emission source and electron emission device including the electron emission source
An electron emission source includes a carbon-based material and resultant material formed by curing and heat treating at least one silicon-based material represented by formula (1), (2), and/or (3) below: where R1
04/05/2011
7893605Back-gated field emission electron source
A field emitter device consistent with certain embodiments has a substantially planar conductor forming a gate electrode. A conductive stripe forms a cathode on the insulating layer. An insulating layer covers at least a portion of the surface between the cathode an...
02/22/2011
7777404Field emission type electron gun comprising single fibrous carbon electron emitter and operating method for the same
Means for achieving the purpose of the present invention includes an field emission type cathode composed of a single fibrous carbon substance and a conductive substrate supporting the same; an extraction apparatus for causing field emission of electrons; and an acc...
08/17/2010
7671523Material for electrodes of low temperature plasma generators
Material for electrodes of low temperature plasma generators. The material contains a porous metal matrix impregnated with a material emitting electrons. The material uses a mixture of copper and iron powders as a porous metal matrix and a Group IIIB metal component...
03/02/2010
7652415Electrode materials for electric lamps and methods of manufacture thereof
An electron emissive material comprises an alkaline earth metal halide composition and operable to emit electrons on excitation. A lamp including an envelope, an electrode including an alkaline earth metal halide electron emissive material and a discharge material, ...
01/26/2010
7629731Planar field emission illumination module comprising electron amplification plates
A planar field emission illumination module includes a top substrate, a bottom substrate, and a plurality of electron-amplification sets located between the top substrate and the bottom substrate. Each electron-amplification set has multiple electron-amplification p...
12/08/2009
7429820Field emission display with electron trajectory field shaping
An apparatus for focusing electrons being emitted from a field emission device comprises a cathode metal layer (20,44,52) formed over a first portion of a substrate (12,41,51) to partially define a sidewall (23) for a trench (25) in a sec...
09/30/2008
7414356Cathode structure including barrier for preventing metal bridging from heater to emitter
A cathode structure comprises a heater including a columnar ceramic body and a heating wire that is partially buried in the ceramic body, and a cathode unit disposed at a first end surface of the ceramic body. The heating wire leads out from a second end surface of ...
08/19/2008
7405092Method of manufacturing electron-emitting device and method of manufacturing image display apparatus
A method of manufacturing an electron-emitting device with a stable electrical characteristics without variation per each of the devices is provided, by forming, on a substrate, a cathode electrode, a carbon layer on the cathode electrode, and a gate electrode, disp...
07/29/2008
7397174Image displaying apparatus
An image displaying apparatus which can easily fix an electrode plate to a predetermined position is provided. An electric potential of the electrode plate, a distance between the electrode plate and a first substrate, and a distance between the electrode plate and ...
07/08/2008
7388201Radiation detector having coated nanostructure and method
A radiation detector has an electron emitter that includes a coated nanostructure on a support. The nanostructure can include a plurality of nanoneedles. A nanoneedle is a shaft tapering from a base portion toward a tip portion. The tip portion has a diameter betwee...
06/17/2008
7381967Non-axisymmetric charged-particle beam system
The charged-particle beam system includes a non-axisymmetric diode forms a non-axisymmetric beam having an elliptic cross-section. A focusing element utilizes a magnetic field for focusing and transporting the non-axisymmetric beam, wherein the non-axisymmetric beam...
06/03/2008
7382086Indirectly heated cathode and cathode ray tube having same
An indirectly heated cathode includes a cathode sleeve (2) housing a heater (1), a caplike base (3) attached onto the cathode sleeve (2), and an electron emitter layer (4) formed on a surface of the base (3). The cathode sle...
06/03/2008
7372192Cathode for cathode ray tube with improved lifetime
Impregnated cathode for a vacuum tube comprising an emissive part in the form of a porous pellet impregnated with a compound of alkaline earth metals; the pellet is placed in a dish made of a refractory material and covered with a porous metal foil forming the emiss...
05/13/2008
7372194Electron emission source composition for flat panel display and method of producing electron emission source for flat panel display using the same
Disclosed is an electron emission source composition for a flat panel display using the same, comprising carbon nanotubes, a vehicle, and an organotitanium or an organometallic compound, and a method of producing the electron emission source composition having impro...
05/13/2008
7365339Ion source
A cathode holder of a tubular shape is inserted into an opening for a cathode of a plasma generating chamber with a tip of the cathode holder positioned outward from an inner wall surface of the plasma generating chamber. The cathode is held in the cathode holder so...
04/29/2008
7352123Field emission display with double layered cathode and method of manufacturing the same
A field emission display including a first and a second substrate being separate and facing each other, one or more gate electrodes formed on the first substrate, and cathode electrodes formed on the one or more gate electrodes while interposing an insulating layer....
04/01/2008
7348719Electron-emitting devices provided with a deposit between electroconductive films made of a material different from that of the electroconductive films
An electron-emitting device comprises a pair of oppositely disposed electrodes and an electroconductive film arranged between the electrodes and including a high resistance region. The high resistance region has a deposit containing carbon as a principal ingredient....
03/25/2008
7348718Discharge electrode implemented by a wide bandgap semiconductor and a discharge lamp using the same
A discharge electrode emitting electrons into a discharge gas, encompasses an emitter and current supply terminals configured to supply electric current to the emitter. The emitter embraces a wide bandgap semiconductor having at 300 K a bandgap of 2.2 eV or wider. A...
03/25/2008
7326098Method of fabricating a field emission backlight device
A field emission backlight device may include a first substrate and a second substrate separate from and roughly parallel to each other, a first anode electrode and a second anode electrode that face each other on inner surfaces of the first substrate and the second...
02/05/2008
7327077Electron tube control grid
In a control grid for an electron tube, the grid has first bars that are evenly spaced out on a skewed surface and extend substantially as circle pseudo-involutes about a central hub. ...
02/05/2008
7317277Electron field emitter and compositions related thereto
This invention provides compositions of matter that contain an electron emitting substance and an expansion material. The expansion material may, for example, be an intercalation compound. When a film is formed from the composition, expansion of the expansion materi...
01/08/2008
7313226Sintered wire annode
A plurality of high atomic number wires are sintered together to form a porous rod that is parted into porous disks which will be used as x-ray targets. A thermally conductive material is introduced into the pores of the rod, and when a stream of electrons impinges ...
12/25/2007
7309526Diamond like carbon coating on nanofillers
In one embodiment the present invention provides for a diamond like coating on small particles. This comprises small particles 10 in the size range of approximately 1-1000 nm and a diamond like coating on the small particles. The diamond like coating is distr...
12/18/2007
7300634Photocatalytic process
A photocatalytic cleaner for air or water includes a photocatalytic material coating a substrate. An anode, positioned a predetermined distance from the substrate, includes a phosphor that emits ultraviolet light in response to bombardment by electrons from a field ...
11/27/2007
7294955Electrode for electron gun and electron gun using same
An electrode for an electron gun and an electron gun using same are provided which make use of stable carbon material having small work function and which permit orientation control to be achieved and which can be manufactured at a low cost. An electrode for an elec...
11/13/2007
7291962Electron-emitting device, electron source using the electron-emitting devices, and image-forming apparatus using the electron source
Provided is an electron-emitting device with high electron emission efficiency and with stable electron emission characteristics over a long period. The electron-emitting device has a substrate, first and second carbon films laid with a first gap in between on the s...
11/06/2007
7288881Electron emitter and light emission element
Primary electrons impinge upon an emitter section of an electron emitter for causing emission of the secondary electrons. The secondary electrons are outputted from the electron emitter. The secondary electrons emitted from the emitter section are accelerated in an ...
10/30/2007
7280636Device and method for producing a spatially uniformly intense source of x-rays
An x-ray source for producing a uniformly intense area x-ray beam. The x-ray source includes a vacuum chamber. An area electron emitter is disposed at a first end of the vacuum chamber. A target material is disposed at a second end of the vacuum chamber and spaced a...
10/09/2007
7276843Electron-emitting device with electron blocking layer, electron source, and image-forming apparatus
An object of the present invention is to enhance a converging property of an electron beam in an electron-emitting device in which a cathode electrode, an insulating layer, and a gate electrode are laminated and a through hole is formed by partially removing the gat...
10/02/2007
7274139Electron emission device with improved electron emission source structure
An electron emission device includes cathode electrodes and gate electrodes formed on a first substrate and crossing each other while interposing an insulation layer. Opening portions are formed at the gate electrodes and the insulation layer while exposing the cath...
09/25/2007
7242139Luminescence brightness compensation structure of field-emission display
A luminescent brightness compensation of sub-pixels of tri-electrode based field-emission display. The cathode conductive layers corresponding to sub-pixels constituting a pixel are arranged at various levels according to the respective luminescent efficiencies ther...
07/10/2007
7215072Field-emission electron source, method of manufacturing the same, and image display apparatus
A stable field-emission electron source that does not suffer from a current drop even after a high-current density operation for a long time is provided. The field-emission electron source includes: a substrate; an insulating layer that is formed on the substrate an...
05/08/2007
7215070System, method and apparatus for multi-beam lithography including a dispenser cathode for homogeneous electron emission
A dispenser cathode which comprises an emission surface, a reservoir for material releasing, when heated, work-function-lowering particles, and at least one passage for allowing diffusion of work-function-lowering particles from said reservoir to said emission surfa...
05/08/2007
7208864Oxide cathode for electron gun with a differentially doped metallic substrate
The metallic substrate of this cathode has a thickness ≦100 μm and contains a plurality of reducing agents as Si or Al and on the top face 111, 0.005%
04/24/2007
7206249SRAM cell power reduction circuit
A method is described that comprises modulating the power consumption of an SRAM as a function of its usage at least by reaching, with help of a transistor, a voltage on a node within an operational amplifier's feedback loop. The voltage is beyond another voltage th...
04/17/2007
7193367Indirectly heated electrode for gas discharge tube, gas discharge tube with this, and its operating device
An indirectly heated cathode C1 comprises a heater 1, a double coil 2, a mesh member 3, and a metal oxide 10. An electrical insulating layer 4 is formed on the surface of heater 1. Heater 1 is inserted into and...
03/20/2007
7187114Electron emitter comprising emitter section made of dielectric material
An electron emitter has an emitter section formed on a substrate, and a cathode electrode and an anode electrode formed on a same surface of the emitter section. A slit is formed between the cathode electrode and the anode electrode. A drive voltage from a pulse gen...
03/06/2007
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