U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"The production of too many useful things results in too many useless people."

Karl Marx

Newsletter  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.

 

Class 977/939 - Electron emitter (e.g., Spindt emitter tip coated with nanoparticles, etc.)


Subclass of Class 977 - Nanotechnology
Definition: Subject matter wherein the nanostructure is used to produce
No. of patents: 20
Last issue date: 08/26/2008


NumberTitleIssue Date
7416019Thermal interface and switch using carbon nanotube arrays
Thermal interfaces and methods include an array of carbon nanotubes aligned substantively perpendicularly from a substrate. One method includes arranging metal catalyst particles with a particular ligand on a fluid surface of a Langmuir-Blodgett trough. This forms u...
08/26/2008
7402445Method of forming micro-structures and nano-structures
Methods of forming a nano-structure for electron extraction are disclosed. One method of forming a nano-structure comprises irradiating an area on a first surface of a thermal conductive film to melt the area across the film. The film is insulated on a second surfac...
07/22/2008
7357690Method for aligning needle-like structures and alignment unit
An alignment unit and an alignment method for aligning needle-like structures. The alignment unit includes a substrate having a surface and grooves defined in the surface. The grooves are sized and arranged such that when the needle-like structures are received ther...
04/15/2008
7352607Non-volatile switching and memory devices using vertical nanotubes
Non-volatile and radiation-hard switching and memory devices using vertical nano-tubes and reversibly held in state by van der Waals' forces and methods of fabricating the devices. Methods of sensing the state of the devices include measuring capacitance, and tunnel...
04/01/2008
7309517Durable optical element
A durable optical film or element includes a polymerized structure having a microstructured surface and a plurality of surface modified colloidal nanoparticles of silica, zirconia, or mixtures thereof. Display devices including the durable microstructured film are a...
12/18/2007
7282272Polymerizable compositions comprising nanoparticles
Polymerizable compositions comprising nanopartilces particularly useful for brightness enhancing films. ...
10/16/2007
7264978Field emission type cold cathode and method of manufacturing the cold cathode
A field emission type cold cathode, comprising a substrate having a conductivity at least on the surface thereof, an insulation layer formed on the substate and having a first opening part, a gate electrode layer formed on the insulation layer, having a center gener...
09/04/2007
7233101Substrate-supported array having steerable nanowires elements use in electron emitting devices
In accordance with the inventions, a new configuration of spaced-apart nanostructures is provided as well as a variety of improved articles using the new configuration. Improved articles include microwave amplifiers, field emission displays, plasma displays, electro...
06/19/2007
7211464Doped elongated semiconductors, growing such semiconductors, devices including such semiconductors and fabricating such devices
A bulk-doped semiconductor that is at least one of the following: a single crystal, an elongated and bulk-doped semiconductor that, at any point along its longitudinal axis, has a largest cross-sectional dimension less than 500 nanometers, and a free-standing and bu...
05/01/2007
7161285CNT film and field-emission cold cathode comprising the same
A fabrication method for an emitter includes the steps of forming on a glass substrate a CNT film which contains a plurality of carbon nanotubes (CNTs) and constitutes an emitter electrode, forming a gate electrode via an insulating film on the CNT film, forming a p...
01/09/2007
7132304Field emission device, display adopting the same and method of manufacturing the same
A field emission device comprises a glass substrate, an emitter electrode formed on the glass substrate, a carbon nanotube (CNT) emitter formed on the emitter electrode, and a gate stack formed around the CNT emitter for extracting electron beams from the CNT emitte...
11/07/2006
7109515Carbon containing tips with cylindrically symmetrical carbon containing expanded bases
Systems and methods are described for carbon containing tips with cylindrically symmetrical carbon containing expanded bases. A method includes producing an expanded based carbon containing tip including: fabricating a carbon containing expanded base on a substrate;...
09/19/2006
7098112Preparation of field emission array comprising nanostructures
A field emission array which does not contain any organic material is manufactured by separately preparing nanostructures whose one ends were coated and then adhering the coated ends of the nanostructures to a metal electrode layer formed on a substrate. ...
08/29/2006
6700454Integrated RF array using carbon nanotube cathodes
An array of carbon nanotube electron sources to make an integrated array of RF (radio frequency) sources in a single vacuum envelope. The RF sources can be printed circuit traveling wave tubes....
03/02/2004
6672925Vacuum microelectronic device and method
A vacuum microelectronic device (10,40) emits electrons (37) from surfaces of nanotube emitters (17, 18). Extracting electrons from the surface of each nanotube emitter (17) results is a small voltage variation between each emitter utilized in the device ...
01/06/2004
6664727Field emision type cold cathode device, manufacturing method thereof and vacuum micro device
A field emission type cold cathode device comprises a substrate, and a metal plating layer formed on the substrate, the metal plating layer contains at least one carbon structure selected from a group of fullerenes and carbon nanotubes, the carbon structu...
12/16/2003
6664728Carbon nanotubes with nitrogen content
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 exhibi...
12/16/2003
6653366Carbon ink, electron-emitting element, method for manufacturing an electron-emitting element and image display device
The invention presents a carbon ink with high electric field emission efficiency that can be applied in an inexpensive printing process suitable for mass production, an improved electron-emitting element for an image display device, and a method for manuf...
11/25/2003
6628053Carbon nanotube device, manufacturing method of carbon nanotube device, and electron emitting device
The present invention discloses a carbon nanotube device comprising a support having a conductive surface and a carbon nanotube, one of whose terminus binds to the conductive surface so that conduction between the surface and the carbon nanotube is mainta...
09/30/2003
6239547Electron-emitting source and method of manufacturing the same
An electron-emitting source of this invention includes at least a carbon nanotube formed from a columnar graphite layer. Electron are emitted from the tip of the carbon nanotube....
05/29/2001
 
Sign InRegister
Username  
Password   
forgot password?