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1. US20050206293 - Electron-emmiting material and manufacturing method therefor

Office
United States of America
Application Number 11134327
Application Date 23.05.2005
Publication Number 20050206293
Publication Date 22.09.2005
Grant Number 7351443
Grant Date 01.04.2008
Publication Kind B2
IPC
B05D 5/12
BPERFORMING OPERATIONS; TRANSPORTING
05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
5Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
12to obtain a coating with specific electrical properties
C01B 31/00
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
31Carbon; Compounds thereof
C01B 31/04
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
31Carbon; Compounds thereof
02Preparation of carbon; Purification
04Graphite
H01J 1/30
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
1Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
02Main electrodes
30Cold cathodes
H01J 1/304
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
1Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
02Main electrodes
30Cold cathodes
304Field-emissive cathodes
H01J 9/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
9Apparatus or processes specially adapted for the manufacture of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
02Manufacture of electrodes or electrode systems
CPC
H01J 9/022
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
9Apparatus or processes specially adapted for the manufacture ; , installation, removal, maintenance; of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
02Manufacture of electrodes or electrode systems
022of cold cathodes
C01B 32/20
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
32Carbon; Compounds thereof
20Graphite
H01J 1/30
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
1Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
02Main electrodes
30Cold cathodes, e.g. field-emissive cathode
H01J 1/304
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
1Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
02Main electrodes
30Cold cathodes, e.g. field-emissive cathode
304Field-emissive cathodes
H01J 2201/30446
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
2201Electrodes common to discharge tubes
30Cold cathodes
304Field emission cathodes
30446characterised by the emitter material
Applicants Matsushita Electric Industrial Co., Ltd.
Inventors Taomoto Akira
Ozaki Toyokazu
Deguchi Masahiro
Shibata Motoshi
Agents McDermott Will &; Emery LLP
Priority Data 2003156400 02.06.2003 JP
Title
(EN) Electron-emmiting material and manufacturing method therefor
Abstract
(EN)

The present invention provides an emissive material with excellent electron emission characteristics. In particular, the present invention relates to a method for manufacturing an emissive material consisting of oriented graphite, having a step of obtaining an oriented graphite comprising a second component and having pores on the inside by heat treating a polymer film in the presence of a second, non-carbon component.


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