| Patent Number |
Title Of Patent |
Date Issued |
| 7560134 |
Nanoparticle implantation |
July 14, 2009 |
| A method for forming a coating of nano-sized material on the surface of another material using a micromachining bead-blasting machine for implantation of nanoparticles is disclosed. The method can be practiced with a wide range of target materials, nanoparticles (such as carbon-nanot |
| 7300634 |
Photocatalytic process |
November 27, 2007 |
| 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 emission cathode e |
| 7195938 |
Activation effect on carbon nanotubes |
March 27, 2007 |
| Particles, which may include nanoparticles, are mixed with carbon nanotubes and deposited on a substrate to form a cold cathode. The particles enhance the field emission characteristics of the carbon nanotubes. An additional activation step may be performed on the deposited carbon na |
| 7125308 |
Bead blast activation of carbon nanotube cathode |
October 24, 2006 |
| Activation of printed or dispensed carbon nanotube (CNT) film using a particle-blasting technique, also referred to as sandblasting or bead blasting. The process works by sending particles of material at high enough velocity such that when the particles hit the surface, some of the m |
| 7070651 |
Process for growing a carbon film |
July 4, 2006 |
| A film (carbon and/or diamond) for a field emitter device, which may be utilized within a computer display, is produced by a process utilizing etching of a substrate and then depositing the film. The etching step creates nucleation sites on the substrate for the film deposition proce |
| 7057203 |
Low work function material |
June 6, 2006 |
| The present invention is directed toward methods for incorporating low work function metals and salts of such metals into carbon nanotubes for use as field emitting materials. The present invention is also directed toward field emission devices, and associated components, comprising |
| 7040948 |
Enhanced field emission from carbon nanotubes mixed with particles |
May 9, 2006 |
| The present invention is directed toward cathodes and cathode materials comprising carbon nanotubes (CNTs) and particles. The present invention is also directed toward field emission devices comprising a cathode of the present invention, as well as methods for making these cathodes. In |
| 6979947 |
Nanotriode utilizing carbon nanotubes and fibers |
December 27, 2005 |
| A field emission device includes a substrate in which a well has been formed. Carbon fibers with a high aspect ratio are deposited within the well, wherein the well is sufficiently deep so that axes of a large number of the carbon fibers are substantially coaxial with a long axis of the |
| 6975063 |
Metallization of carbon nanotubes for field emission applications |
December 13, 2005 |
| The present invention is directed towards metallized carbon nanotubes, methods for making metallized carbon nanotubes using an electroless plating technique, methods for dispensing metallized carbon nanotubes onto a substrate, and methods for aligning magnetically-active metallized c |
| 6897603 |
Catalyst for carbon nanotube growth |
May 24, 2005 |
| Nanoparticles are coated using thick-film techniques with a catalyst to promote the growth of carbon nanotubes thereon. In one example, alumina nanoparticles are coated with a copper catalyst. Such nanoparticles can be selectively deposited onto a substrate to create a field emission cat |
| 6885022 |
Low work function material |
April 26, 2005 |
| A cathode includes a carbon nanotube layer, which is optimized with a low work function material, such as an alkali. The inclusion of the alkali material improves the field emission properties of the carbon nanotube layer. |
| 6819035 |
Cold cathode |
November 16, 2004 |
| A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insu |
| 6798131 |
Display having a grid electrode with individually controllable grid portions |
September 28, 2004 |
| A multiplexed grid structure for electron emission displays allows each of the grid portions to be independently controllable from each other so that electrons can be emitted from their respective pixel sites as each grid portion is addressed. |
| 6798127 |
Enhanced field emission from carbon nanotubes mixed with particles |
September 28, 2004 |
| The present invention is directed toward cathodes and cathode materials comprising carbon nanotubes (CNTs) and particles. The present invention is also directed toward field emission devices comprising a cathode of the present invention, as well as methods for making these cathodes. In s |
| 6750461 |
Large area electron source |
June 15, 2004 |
| By using a large area cathode, an electron source can be made that can irradiate a large area more uniformly and more efficiently than currently available devices. The electron emitter can be a carbon film cold cathode, a microtip or some other emitter. It can be patterned. The cathode c |
| 6664728 |
Carbon nanotubes with nitrogen content |
December 16, 2003 |
| Field emission characteristics of carbon films are improved by changing the conditions of the growth of the films, by adding nitrogen, or substitutes to the nitrogen for hydrogen, in the carbon film growth process. Resulting field emission cathodes exhibit better field emission character |
| 6664722 |
Field emission material |
December 16, 2003 |
| A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insu |
| 6630023 |
Surface treatment process used in growing a carbon film |
October 7, 2003 |
| A film (carbon and/or diamond) for a field emitter device, which may be utilized within a computer display, is produced by a process utilizing treatment of a substrate and then depositing the film. The treatment step creates nucleation and growth sites on the substrate for the film d |
| 6580225 |
Cold cathode |
June 17, 2003 |
| A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insu |
| 6580211 |
Triode assembly for carbon cold cathode |
June 17, 2003 |
| A triode structure code cathode assembly is produced by depositing a carbon emitter material onto a substrate to form a cathode structure. Then, an insulating layer is deposited onto one side of a mesh foil to form a mesh assembly. This mesh assembly is then mechanically attached to the |
| 6531828 |
Alignment of carbon nanotubes |
March 11, 2003 |
| Carbon nanotubes are aligned within a host phase of a material that has molecules that will align under a certain influence. When the host molecules become aligned, they cause the carbon nanotube fibers to also become aligned in the same direction. The film of aligned carbon nanotubes |
| 6479939 |
Emitter material having a plurlarity of grains with interfaces in between |
November 12, 2002 |
| A carbon film having an area of insulating material surrounded by an area of conducing material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of insu |
| 6312303 |
Alignment of carbon nanotubes |
November 6, 2001 |
| Carbon nanotubes are aligned within a host phase of a material that has molecules that will align under a certain influence. When the host molecules become aligned, they cause the carbon nanotube fibers to also become aligned in the same direction. The film of aligned carbon nanotubes |
| 6310432 |
Surface treatment process used in growing a carbon film |
October 30, 2001 |
| A film (carbon and/or diamond) for a field emitter device, which may be utilized within a computer display, is produced by a process utilizing treatment of a substrate and then depositing the film. The treatment step creates nucleation and growth sites on the substrate for the film d |
| 6181056 |
Cold cathode carbon film |
January 30, 2001 |
| A carbon film having an area of insulating material surrounded by an area of conducting material, and an area of material between the area of insulating material and the area of conducting material having a graded dielectric constant which varies from high to low from the area of ins |
| 6111354 |
Field emission lamp structures |
August 29, 2000 |
| A field emission lamp, of either a diode or triode structure has a packaging whereby electrical access to the various electrodes of the lamp is provided through the rear or underside of the field emission device so that the individual lamps can be placed in close proximity to each other. |
| 6084338 |
Cathode assembly with diamond particles and layer |
July 4, 2000 |
| A cathode assembly includes a substrate (1101), a plurality of electrically conductive strips (1102), nano-size diamond particles (1701), and a layer (1801) of diamond material deposited (CVD) over the diamond particles (1701). |
| 6064148 |
Field emission device |
May 16, 2000 |
| A film (carbon and/or diamond) for a field emitter device, which may be utilized within a computer display, is produced by a process utilizing etching of a substrate and then depositing the film. The etching step creates nucleation sites on the substrate for the film deposition process. |
| 6008595 |
Field emission lamp structures |
December 28, 1999 |
| A field emission lamp, of either a diode or triode structure has a packaging whereby electrical access to the various electrodes of the lamp is provided through the rear or underside of the field emission device so that the individual lamps can be placed in close proximity to each other. |
| 5973452 |
Display |
October 26, 1999 |
| The present invention provides for a field emission device including an anode assembly and a cathode assembly, wherein the cathode assembly further includes a substrate, a plurality of electrically conducting strips deposited on the substrate, and a continuous layer of diamond materi |
| 5947783 |
Method of forming a cathode assembly comprising a diamond layer |
September 7, 1999 |
| A cathode assembly includes a substrate, a plurality of electrically conducting strips deposited on the substrate, and a continuous layer of diamond material deposited over the plurality of electrically conducting strips and portions of the substrate exposed between the plurality of |
