US Patent No: 5,821,679

Number of patents in Portfolio can not be more than 2000

Electron device employing field-emission cathode

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Abstract

Concave portions are formed, in a matrix fashion, in a substrate formed of metal or semiconductor. An electron emission layer made of material having small work function such as a diamond thin film is formed on the bottom portion of the concave portion. A protruding portion of the substrate serves as a beam formation electrode. Divergence of electrons can be suppressed with the beam formation electrode. A gate electrode for drawing out the electrons is formed above the beam formation electrode.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NEC CORPORATIONTOKYO17429

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Makishima, Hideo Tokyo, JP 31 272

Cited Art

Patent Info (Count) # Cites Year
 
LUCENT TECHNOLOGIES INC. (3)
5,623,180 Electron field emitters comprising particles cooled with low voltage emitting material 23 1994
5,637,950 Field emission devices employing enhanced diamond field emitters 24 1994
5,561,340 Field emission display having corrugated support pillars and method for manufacturing 24 1995
 
MOTOROLA SOLUTIONS, INC. (2)
5,289,086 Electron device employing a diamond film electron source 26 1992
5,258,685 Field emission electron source employing a diamond coating 32 1992
 
CANON KABUSHIKI KAISHA (1)
5,391,956 Electron emitting device, method for producing the same and display apparatus and electron beam drawing apparatus utilizing the same 7 1992
 
LOS ALAMOS NATIONAL SECURITY, LLC (1)
5,578,901 Diamond fiber field emitters 64 1995
 
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY (1)
5,619,093 Electron field emission 5 1995

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
COMMISSARIAT A L'ENERGIE ATOMIQUE (2)
7,759,851 Cathode structure for emissive screen 0 2003
6,917,147 Cathode structure with emissive layer formed on a resistive layer 4 2003
 
KLA-TENCOR CORPORATION (2)
8,089,051 Electron reflector with multiple reflective modes 1 2010
8,373,144 Quasi-annular reflective electron patterning device 0 2010
 
LG DISPLAY CO., LTD. (2)
6,639,352 Flat lamp for emitting lights to a surface area and liquid crystal using the same 3 2001
6,841,930 Flat lamp for emitting lights to a surface area and liquid crystal display using the same 0 2003
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (2)
6,692,327 Method for producing electron emitting element 15 2000
6,400,091 Electron emission element and image output device 64 2000
 
CANON KABUSHIKI KAISHA (1)
7,074,102 Method of manufacturing electron-emitting device, method of manufacturing electron source, and method of manufacturing image display device 7 2004
 
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE (1)
7,309,954 Field emission display having gate plate 0 2003
 
KABUSHIKI KAISHA TOSHIBA (1)
6,563,260 Electron emission element having resistance layer of particular particles 12 2000
 
KLA-TENCOR TECHNOLOGIES CORPORATION (1)
7,755,061 Dynamic pattern generator with cup-shaped structure 1 2007
 
L.G. PHILIPS DISPLAYS KOREA CO., LTD. (1)
6,876,140 Field emission display using a gated field emitter and a flat electrode 0 2002
 
MITSUBISHI PENCIL CO., LTD. (1)
7,294,955 Electrode for electron gun and electron gun using same 0 2005
 
PIONEER CORPORATION (1)
6,744,063 Image pickup device including electron-emitting devices 15 2001
 
SI DIAMOND TECHNOLOGY, INC. (1)
6,064,148 Field emission device 28 1997