with metals or alloys as an emissive material

Industry

CPC
H01J1/146

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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J1/00Details 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

Current Industry

H01J1/146with metals or alloys as an emissive material

Industries

Patents Grantslast 30 patents

Information Patent Grant
Thermionic emission device and method for making the same
- Patent number 11,195,686
- Issue date Dec 7, 2021
- Tsinghua University
- Xin-He Yang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thermionic tungsten/scandate cathodes and method of making the same
- Patent number 11,075,049
- Issue date Jul 27, 2021
- The Government of the United States of America, as represented by the Secreta...
- Boris N. Feigelson
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Electron emission element, electrification apparatus, and image for...
- Patent number 10,727,021
- Issue date Jul 28, 2020
- SHARP KABUSHIKI KAISHA
- Katsumi Adachi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of fabricating tungsten scandate nano-composite powder for c...
- Patent number 10,714,292
- Issue date Jul 14, 2020
- The Regents of the University of California
- Neville C. Luhmann
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Thermionic tungsten/scandate cathodes and methods of making the same
- Patent number 10,497,530
- Issue date Dec 3, 2019
- The Government of the United States of America, as represented by the Secreta...
- Boris N. Feigelson
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Ion pump noble gas stability using small grain sized cathode material
- Patent number 10,121,627
- Issue date Nov 6, 2018
- Edwards Vacuum LLC
- Anthony Wynohrad
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thermionic emission filament, quadrupole mass spectrometer and resi...
- Patent number 10,026,582
- Issue date Jul 17, 2018
- Horiba Stec, Co., Ltd.
- Kohei Sasai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tungsten electrode material and thermionic emission current measuri...
- Patent number 9,502,201
- Issue date Nov 22, 2016
- A.L.M.T. Corp.
- Seiji Nakabayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thermal-field type electron source composed of transition metal car...
- Patent number 9,490,098
- Issue date Nov 8, 2016
- Applied Physics Technologies, Inc.
- William A. Mackie
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thermal-field type electron source composed of transition metal car...
- Patent number 9,240,301
- Issue date Jan 19, 2016
- Applied Physics Technologies, Inc.
- William A. Mackie
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tungsten wire, cathode heater and vibration service lamp filament
- Patent number 9,236,212
- Issue date Jan 12, 2016
- Kabushiki Kaisha Toshiba
- Takashi Tanaka
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Electrode materials for electric lamps and methods of manufacture t...
- Patent number 6,849,996
- Issue date Feb 1, 2005
- General Electric Company
- Shankar Madras Venugopal
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode material including rare earth metal used as electron emissi...
- Patent number 6,800,990
- Issue date Oct 5, 2004
- Samsung SDI Co., Ltd.
- Jong-Seo Choi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Metal cathode and indirectly heated cathode assembly having the same
- Patent number 6,791,251
- Issue date Sep 14, 2004
- Samsung SDI Co., Ltd.
- Dong-Kyun Seo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode material of electron beam device and preparation method the...
- Patent number 6,511,632
- Issue date Jan 28, 2003
- Samsung SDI Co., Ltd.
- Jong-Seo Choi
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Thermal field emission cathode
- Patent number 6,133,679
- Issue date Oct 17, 2000
- Denki Kagaku Kogyo Kabushiki Kaisha
- Yoshinori Terui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Image display apparatus and method for fabricating the same
- Patent number 5,730,637
- Issue date Mar 24, 1998
- Matsushita Electric Industrial Co., Ltd.
- Shigeo Suzuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
ADC gas discharge image display device having cathode material dime...
- Patent number 5,646,482
- Issue date Jul 8, 1997
- Matsushita Electric Industrial Co., Ltd.
- Shigeo Suzuki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing a glow cathode for an electron tube
- Patent number 5,580,291
- Issue date Dec 3, 1996
- Siemens Aktiengesellschaft
- Thomas Redel
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
3697321
- Patent number 3,697,321
- Issue date Oct 10, 1972
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
3662210
- Patent number 3,662,210
- Issue date May 9, 1972
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
3413510
- Patent number 3,413,510
- Issue date Nov 26, 1968
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
2682511
- Patent number 2,682,511
- Issue date Jun 29, 1954
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2639996
- Patent number 2,639,996
- Issue date May 26, 1953
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2497111
- Patent number 2,497,111
- Issue date Feb 14, 1950
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2204391
- Patent number 2,204,391
- Issue date Jun 11, 1940
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2192491
- Patent number 2,192,491
- Issue date Mar 5, 1940
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2149656
- Patent number 2,149,656
- Issue date Mar 7, 1939
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2144250
- Patent number 2,144,250
- Issue date Jan 17, 1939
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2144249
- Patent number 2,144,249
- Issue date Jan 17, 1939
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ELECTRON SOURCE, METHOD FOR MANUFACTURING SAME, AND DEVICE PROVIDED...
- Publication number 20240029989
- Publication date Jan 25, 2024
- Denka Company Limited
- Hiromitsu CHATANI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CATHODE MEMBER FOR ELECTRON BEAM GENERATION, AND METHOD FOR MANUFAC...
- Publication number 20220336179
- Publication date Oct 20, 2022
- KOBELCO RESEARCH INSTITUTE, INC.
- Kenji KOGA
- B22 - CASTING POWDER METALLURGY
Information Patent Application
METHOD AND APPARATUS FOR REDUCING THE WORK FUNCTION OF POLYCRYSTALL...
- Publication number 20220328274
- Publication date Oct 13, 2022
- California Institute of Technology
- Pedro P. GUERRERO VELA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
THERMIONIC EMISSION DEVICE AND METHOD FOR MAKING THE SAME
- Publication number 20210217572
- Publication date Jul 15, 2021
- TSINGHUA UNIVERSITY
- XIN-HE YANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CATHODES WITH CONFORMAL CATHODE SURFACES, VACUUM ELECTRONIC DEVICES...
- Publication number 20200066474
- Publication date Feb 27, 2020
- Modern Electron, LLC
- John J. Lorr
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Thermionic Tungsten/Scandate Cathodes and Method of Making The Same
- Publication number 20200043691
- Publication date Feb 6, 2020
- The Government of the United States of America, as represented by the Secreta...
- Boris N. Feigelson
- B22 - CASTING POWDER METALLURGY
Information Patent Application
METHOD OF FABRICATING TUNGSTEN SCANDATE NANO-COMPOSITE POWDER FOR C...
- Publication number 20170358419
- Publication date Dec 14, 2017
- The Regents of the University of California
- Neville C. Luhmann
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
THERMIONIC EMISSION FILAMENT, QUADRUPOLE MASS SPECTROMETER AND RESI...
- Publication number 20170169981
- Publication date Jun 15, 2017
- Horiba Stec, Co., Ltd.
- Kohei SASAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Thermionic Tungsten/Scandate Cathodes and Methods of Making the Same
- Publication number 20160300684
- Publication date Oct 13, 2016
- The Government of the United States of America, as represented by the Secreta...
- Boris N. Feigelson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TUNGSTEN CATHODE MATERIAL
- Publication number 20140017114
- Publication date Jan 16, 2014
- NIPPON TUNGSTEN CO., LTD.
- Akira Matsuo
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT
- Publication number 20120285586
- Publication date Nov 15, 2012
- Kabushiki Kaisha Toshiba
- Takashi Tanaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
TUNGSTEN ELECTRODE MATERIAL AND THERMIONIC EMISSION CURRENT MEASURI...
- Publication number 20110243184
- Publication date Oct 6, 2011
- A.L.M.T. Corp.
- Seiji Nakabayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT
- Publication number 20100084055
- Publication date Apr 8, 2010
- Kabushiki Kaisha Toshiba
- Takashi Tanaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
CATHODE COMPOSED OF MATERIALS WITH DIFFERENT ELECTRON WORKS FUNCTIONS
- Publication number 20090284124
- Publication date Nov 19, 2009
- WOLFGANG KUTSCHERA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electron gun
- Publication number 20060145585
- Publication date Jul 6, 2006
- DENKI KAGAKU KOGYO KABUSHIKI KAISHA
- Yoshinori Terui
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electron emission material and electron emission element using the...
- Publication number 20050179024
- Publication date Aug 18, 2005
- Matsushita Electric Industrial Co., Ltd.
- Motoshi Shibata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Tunsten wire, cathode heater, and filament for vibration service lamp
- Publication number 20040244879
- Publication date Dec 9, 2004
- Takashi Tanaka
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
ELECTRODE MATERIALS FOR ELECTRIC LAMPS AND METHODS OF MANUFACTURE T...
- Publication number 20040239229
- Publication date Dec 2, 2004
- Shankar Madras Venugopal
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Thermionic emitter
- Publication number 20020167258
- Publication date Nov 14, 2002
- Ronald Dittrich
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Metal cathode and indirectly heated cathode assembly having the same
- Publication number 20020153819
- Publication date Oct 24, 2002
- Dong-Kyun Seo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Cathode material for electron beam apparatus
- Publication number 20010009348
- Publication date Jul 26, 2001
- Jong-Seo Choi
- H01 - BASIC ELECTRIC ELEMENTS

with metals or alloys as an emissive material

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Thermionic emission device and method for making the same

Thermionic tungsten/scandate cathodes and method of making the same

Electron emission element, electrification apparatus, and image for...

Method of fabricating tungsten scandate nano-composite powder for c...

Thermionic tungsten/scandate cathodes and methods of making the same

Ion pump noble gas stability using small grain sized cathode material

Thermionic emission filament, quadrupole mass spectrometer and resi...

Tungsten electrode material and thermionic emission current measuri...

Thermal-field type electron source composed of transition metal car...

Thermal-field type electron source composed of transition metal car...

Tungsten wire, cathode heater and vibration service lamp filament

Electrode materials for electric lamps and methods of manufacture t...

Cathode material including rare earth metal used as electron emissi...

Metal cathode and indirectly heated cathode assembly having the same

Cathode material of electron beam device and preparation method the...

Thermal field emission cathode

Image display apparatus and method for fabricating the same

ADC gas discharge image display device having cathode material dime...

Method for manufacturing a glow cathode for an electron tube

3697321

3662210

3413510

2682511

2639996

2497111

2204391

2192491

2149656

2144250

2144249

Patents Applicationslast 30 patents

ELECTRON SOURCE, METHOD FOR MANUFACTURING SAME, AND DEVICE PROVIDED...

CATHODE MEMBER FOR ELECTRON BEAM GENERATION, AND METHOD FOR MANUFAC...

METHOD AND APPARATUS FOR REDUCING THE WORK FUNCTION OF POLYCRYSTALL...

THERMIONIC EMISSION DEVICE AND METHOD FOR MAKING THE SAME

CATHODES WITH CONFORMAL CATHODE SURFACES, VACUUM ELECTRONIC DEVICES...

Thermionic Tungsten/Scandate Cathodes and Method of Making The Same

METHOD OF FABRICATING TUNGSTEN SCANDATE NANO-COMPOSITE POWDER FOR C...

THERMIONIC EMISSION FILAMENT, QUADRUPOLE MASS SPECTROMETER AND RESI...

Thermionic Tungsten/Scandate Cathodes and Methods of Making the Same

TUNGSTEN CATHODE MATERIAL

TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT

TUNGSTEN ELECTRODE MATERIAL AND THERMIONIC EMISSION CURRENT MEASURI...

TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT

CATHODE COMPOSED OF MATERIALS WITH DIFFERENT ELECTRON WORKS FUNCTIONS

Electron gun

Electron emission material and electron emission element using the...

Tunsten wire, cathode heater, and filament for vibration service lamp

ELECTRODE MATERIALS FOR ELECTRIC LAMPS AND METHODS OF MANUFACTURE T...

Thermionic emitter

Metal cathode and indirectly heated cathode assembly having the same

Cathode material for electron beam apparatus