Heaters for thermionic cathodes

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H01J2201/28

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Parent Industries

HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J2201/00Electrodes common to discharge tubes

Current Industry

H01J2201/28Heaters for thermionic cathodes

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Functional metal oxides and methods of making same
- Patent number 12,247,317
- Issue date Mar 11, 2025
- The Johns Hopkins University
- William A. Phelan
- C30 - CRYSTAL GROWTH
Information Patent Grant
Pincer mount cathode
- Patent number 12,027,340
- Issue date Jul 2, 2024
- Kimball Physics, Inc.
- Andrea Michelle Calvey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
System and method for depth-selectable x-ray analysis
- Patent number 11,056,308
- Issue date Jul 6, 2021
- Sigray, Inc.
- Wenbing Yun
- G01 - MEASURING TESTING
Information Patent Grant
Electron gun
- Patent number 10,950,407
- Issue date Mar 16, 2021
- New Japan Radio Co., Ltd.
- Toru Kimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Flat emitters with stress compensation features
- Patent number 10,636,608
- Issue date Apr 28, 2020
- General Electric Company
- Evan Lampe
- 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
Resistively heated small planar filament
- Patent number 8,247,971
- Issue date Aug 21, 2012
- Moxtek, Inc.
- Erik C. Bard
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Emitter for X-ray tubes and heating method therefore
- Patent number 8,000,449
- Issue date Aug 16, 2011
- Koninklijke Philips Electronics N.V.
- Stefan Hauttmann
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
X-ray tube with enhanced small spot cathode and methods for manufac...
- Patent number 7,657,003
- Issue date Feb 2, 2010
- Thermo NITON Analyzers LLC
- William L. Adams
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Filament assembly having reduced electron beam time constant
- Patent number 7,539,286
- Issue date May 26, 2009
- Varian Medical Systems, Inc.
- Steve Bandy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Filament for X-ray tube and X-ray tube having the same
- Patent number 7,271,530
- Issue date Sep 18, 2007
- Rigaku Corporation
- Masaru Kuribayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube having an improved indirectly heated cathode struc...
- Patent number 6,614,147
- Issue date Sep 2, 2003
- Hitachi, Ltd.
- Sachio Koizumi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube having an improved indirectly heated cathode
- Patent number 6,492,768
- Issue date Dec 10, 2002
- Hitachi, Ltd.
- Sachio Koizumi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube having an indirectly heated cathode provided with...
- Patent number 6,335,590
- Issue date Jan 1, 2002
- Hitachi, Ltd.
- Norio Iwamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode ray tube having an improved indirectly heated cathode
- Patent number 6,191,528
- Issue date Feb 20, 2001
- Hitachi, Ltd.
- Norio Iwamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode assembly, electron gun assembly, electron tube, heater, and...
- Patent number 6,130,502
- Issue date Oct 10, 2000
- Kabushiki Kaisha Toshiba
- Kazuo Kobayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High emittance electron source having high illumination uniformity
- Patent number 6,091,187
- Issue date Jul 18, 2000
- International Business Machines Corporation
- Steven D. Golladay
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus for depositing cathode material on a wire cathode
- Patent number 5,902,464
- Issue date May 11, 1999
- U.S. Philips Corporation
- Nicolaas J.M. Van Leth
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing a dispenser cathode
- Patent number 5,890,941
- Issue date Apr 6, 1999
- U.S. Philips Corporation
- Jacobus A. J. M. Deckers
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Display device based on indirectly heated thermionic cathodes
- Patent number 5,831,382
- Issue date Nov 3, 1998
- Frank Albert Bilan
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for depositing cathode material on a wire cathode
- Patent number 5,714,051
- Issue date Feb 3, 1998
- U.S. Philips Corporation
- Nicolaas J.M. Van Leth
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Directly heated cathode structure
- Patent number 5,701,052
- Issue date Dec 23, 1997
- Samsung Display Devices Co., Ltd.
- Chang-seob Kim
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Dispenser cathode and method of manufacturing a dispenser cathode
- Patent number 5,666,022
- Issue date Sep 9, 1997
- U.S. Philips Corporation
- Jacobus A. J. M. Deckers
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing a cathode
- Patent number 5,595,933
- Issue date Jan 21, 1997
- U.S. Philips Corporation
- Willem L. C. M. Heijboer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode
- Patent number 5,475,281
- Issue date Dec 12, 1995
- U.S. Philips Corporation
- Willem L. C. M. Heijboer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Indirectly-heated cathode heater structure for a cathode ray tube
- Patent number 5,453,657
- Issue date Sep 26, 1995
- Gold Star Co., Ltd.
- Gong S. Park
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode heater and cathode assembly for microwave power tubes
- Patent number 5,350,969
- Issue date Sep 27, 1994
- Litton Systems, Inc.
- Todd R. Gattuso
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode assembly of an electron gun for a color cathode ray tube
- Patent number 5,341,064
- Issue date Aug 23, 1994
- Samsung Electron Devices Co., Ltd.
- Kwang-ki Seong
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
EMITTER AND DEVICE COMPRISING SAME
- Publication number 20250218717
- Publication date Jul 3, 2025
- DENKA COMPANY LIMITED
- Daisuke ISHIKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Pincer Mount Cathode
- Publication number 20240161994
- Publication date May 16, 2024
- KIMBALL PHYSICS, INC.
- Andrea Michelle Calvey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FUNCTIONAL METAL OXIDES AND METHODS OF MAKING SAME
- Publication number 20220325439
- Publication date Oct 13, 2022
- William A. PHELAN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON GUN
- Publication number 20200395185
- Publication date Dec 17, 2020
- NEW JAPAN RADIO CO., LTD.
- Toru KIMURA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SYSTEM AND METHOD FOR DEPTH-SELECTABLE X-RAY ANALYSIS
- Publication number 20200098537
- Publication date Mar 26, 2020
- Sigray, Inc.
- Wenbing Yun
- 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
Flat Emitters With Stress Compensation Features
- Publication number 20180350549
- Publication date Dec 6, 2018
- GENERAL ELECTRIC COMPANY
- Evan Lampe
- H01 - BASIC ELECTRIC ELEMENTS
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
RESISTIVELY HEATED SMALL PLANAR FILAMENT
- Publication number 20120212157
- Publication date Aug 23, 2012
- MOXTEK, INC.
- Sterling W. Cornaby
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EMITTER FOR X-RAY TUBES AND HEATING METHOD THEREFORE
- Publication number 20100316192
- Publication date Dec 16, 2010
- Koninklijke Philips Electronics N.V.
- Stefan Hauttmann
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RESISTIVELY HEATED SMALL PLANAR FILAMENT
- Publication number 20100239828
- Publication date Sep 23, 2010
- Sterling W. Cornaby
- 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
FILAMENT ASSEMBLY HAVING REDUCED ELECTRON BEAM TIME CONSTANT
- Publication number 20090129550
- Publication date May 21, 2009
- Varian Medical Systems Technologies, Inc.
- Steve G. Bandy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
X-Ray Tube with Enhanced Small Spot Cathode and Methods for Manufac...
- Publication number 20090060142
- Publication date Mar 5, 2009
- William L. ADAMS
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Filament for X-ray tube and X-ray tube having the same
- Publication number 20070090744
- Publication date Apr 26, 2007
- Rigaku Corporation
- Masaru Kuribayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Cathode ray tube and method for manufacturing the same
- Publication number 20050012835
- Publication date Jan 20, 2005
- Nam Leen Leem
- 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
Cathode ray tube having an improved indirectly heated cathode struc...
- Publication number 20010015613
- Publication date Aug 23, 2001
- Sachio Koizumi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Cathode ray tube having an improved indirectly heated cathode
- Publication number 20010001531
- Publication date May 24, 2001
- Norio Iwamura
- H01 - BASIC ELECTRIC ELEMENTS

Heaters for thermionic cathodes

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Functional metal oxides and methods of making same

Pincer mount cathode

System and method for depth-selectable x-ray analysis

Electron gun

Flat emitters with stress compensation features

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

Resistively heated small planar filament

Emitter for X-ray tubes and heating method therefore

X-ray tube with enhanced small spot cathode and methods for manufac...

Filament assembly having reduced electron beam time constant

Filament for X-ray tube and X-ray tube having the same

Cathode ray tube having an improved indirectly heated cathode struc...

Cathode ray tube having an improved indirectly heated cathode

Cathode ray tube having an indirectly heated cathode provided with...

Cathode ray tube having an improved indirectly heated cathode

Cathode assembly, electron gun assembly, electron tube, heater, and...

High emittance electron source having high illumination uniformity

Apparatus for depositing cathode material on a wire cathode

Method of manufacturing a dispenser cathode

Display device based on indirectly heated thermionic cathodes

Method for depositing cathode material on a wire cathode

Directly heated cathode structure

Dispenser cathode and method of manufacturing a dispenser cathode

Method for manufacturing a cathode

Cathode

Indirectly-heated cathode heater structure for a cathode ray tube

Cathode heater and cathode assembly for microwave power tubes

Cathode assembly of an electron gun for a color cathode ray tube

Patents Applicationslast 30 patents

EMITTER AND DEVICE COMPRISING SAME

Pincer Mount Cathode

FUNCTIONAL METAL OXIDES AND METHODS OF MAKING SAME

ELECTRON GUN

SYSTEM AND METHOD FOR DEPTH-SELECTABLE X-RAY ANALYSIS

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

Flat Emitters With Stress Compensation Features

TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT

RESISTIVELY HEATED SMALL PLANAR FILAMENT

EMITTER FOR X-RAY TUBES AND HEATING METHOD THEREFORE

RESISTIVELY HEATED SMALL PLANAR FILAMENT

TUNGSTEN WIRE, CATHODE HEATER AND VIBRATION SERVICE LAMP FILAMENT

FILAMENT ASSEMBLY HAVING REDUCED ELECTRON BEAM TIME CONSTANT

X-Ray Tube with Enhanced Small Spot Cathode and Methods for Manufac...

Filament for X-ray tube and X-ray tube having the same

Cathode ray tube and method for manufacturing the same

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

Cathode ray tube having an improved indirectly heated cathode struc...

Cathode ray tube having an improved indirectly heated cathode