of thermionic cathodes

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H01J9/04

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HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J9/00Apparatus or processes specially adapted to the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof Recovery of material from discharge tubes or lamps

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H01J9/04of thermionic cathodes

Industries

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Patents Grantslast 30 patents

Information Patent Grant
X-ray cathode focusing element
- Patent number 12,183,536
- Issue date Dec 31, 2024
- GE Precision Healthcare LLC
- Kevin Kruse
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode heater assembly and method of manufacture
- Patent number 12,119,201
- Issue date Oct 15, 2024
- ELVE INC.
- Colin Andrew McElroy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode mechanism of electron emission source, and method for manuf...
- Patent number 12,106,928
- Issue date Oct 1, 2024
- NuFlare Technology, Inc.
- Ryoei Kobayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Annular gap cathodes with graphite caps
- Patent number 12,057,285
- Issue date Aug 6, 2024
- Kimball Physics, Inc.
- George Douglas Calvey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Monolithic heater for thermionic electron cathode
- Patent number 11,948,769
- Issue date Apr 2, 2024
- Applied Physics Technologies, Inc.
- Gerald G. Magera
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron source, method for manufacturing same, emitter, and device...
- Patent number 11,915,921
- Issue date Feb 27, 2024
- DENKA COMPANY LIMITED
- Dai Tsukada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron emitter and method of fabricating same
- Patent number 11,688,579
- Issue date Jun 27, 2023
- ASML Netherlands B.V.
- Juying Dou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun and manufacturing method therefor
- Patent number 11,437,214
- Issue date Sep 6, 2022
- New Japan Radio Co., Ltd.
- Toru Kimura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Apparatus including thermal energy harvesting thermionic device int...
- Patent number 11,417,506
- Issue date Aug 16, 2022
- Birmingham Technologies, Inc.
- Joseph Birmingham
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cathode material
- Patent number 11,315,782
- Issue date Apr 26, 2022
- Plansee SE
- Hannes Traxler
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Electrostatic grid device to reduce electron space charge
- Patent number 11,205,564
- Issue date Dec 21, 2021
- Modern Electron, Inc.
- Stephen E. Clark
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron emitter and method of fabricating same
- Patent number 11,201,032
- Issue date Dec 14, 2021
- ASML Netherlands B.V.
- Juying Dou
- H01 - BASIC ELECTRIC ELEMENTS
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
Electron source and production method therefor
- Patent number 11,152,185
- Issue date Oct 19, 2021
- DENKA COMPANY LIMITED
- Toshiyuki Morishita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Estimation of cathode space current for a thermionic vacuum tube us...
- Patent number 11,152,181
- Issue date Oct 19, 2021
- Panayotis Tsambos
- Panayotis Tsambos
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Emitter structures for enhanced thermionic emission
- Patent number 11,094,493
- Issue date Aug 17, 2021
- Lockheed Martin Corporation
- Frans Hendrik Ebersohn
- 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
Cathode emitter to emitter attachment system and method
- Patent number 10,998,160
- Issue date May 4, 2021
- General Electric Company
- Gregory Steinlage
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron source and production method therefor
- Patent number 10,957,511
- Issue date Mar 23, 2021
- DENKA COMPANY LIMITED
- Toshiyuki Morishita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Planar gate-insulated vacuum channel transistor
- Patent number 10,840,052
- Issue date Nov 17, 2020
- International Business Machines Corporation
- Injo Ok
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Low work function electron beam filament assembly
- Patent number 10,796,876
- Issue date Oct 6, 2020
- Colorado State University Research Foundation
- Bao Gia Nguyen
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Electron emitter and method of fabricating same
- Patent number 10,784,071
- Issue date Sep 22, 2020
- ASML Netherlands B.V.
- Juying Dou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
X-ray tube and method of manufacturing the same
- Patent number 10,763,069
- Issue date Sep 1, 2020
- Canon Electron Tubes & Devices Co., Ltd.
- Hiroyuki Kumadaki
- 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 cathode with a graphene sealing layer and method of maki...
- Patent number 10,679,816
- Issue date Jun 9, 2020
- Triad National Security, LLC
- Nathan Moody
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for preparing pressed scandia-doped dispenser cathodes using...
- Patent number 10,651,000
- Issue date May 12, 2020
- Beijing University of Technology
- Wei Liu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Low temperature, high-brightness, cathode
- Patent number 10,593,505
- Issue date Mar 17, 2020
- NUFLARE TECHNOLOGY, INC.
- Victor Katsap
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-brightness lanthanum hexaboride cathode and method for manufac...
- Patent number 10,553,388
- Issue date Feb 4, 2020
- NUFLARE TECHNOLOGY, INC.
- Victor Katsap
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron source and production method therefor
- Patent number 10,553,390
- Issue date Feb 4, 2020
- DENKA COMPANY LIMITED
- Toshiyuki Morishita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Creep resistant electron emitter material and fabrication method
- Patent number 10,529,526
- Issue date Jan 7, 2020
- General Electric Company
- Andrew Marconnet
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
CATHODE HEATER ASSEMBLY AND METHOD OF MANFACTURE
- Publication number 20250037958
- Publication date Jan 30, 2025
- Elve Inc.
- Colin Andrew McElroy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LAMINATE, ELECTRON SOURCE AND ELECTRONIC DEVICE CONTAINING LAMINATE...
- Publication number 20240395494
- Publication date Nov 28, 2024
- NATIONAL INSTITUTE FOR MATERIALS SCIENCE
- Katsumi NAGAOKA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MONOLITHIC HEATER FOR THERMIONIC ELECTRON CATHODE
- Publication number 20240212964
- Publication date Jun 27, 2024
- Applied Physics Technologies, Inc.
- Gerald G. MAGERA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ANNULAR GAP CATHODES WITH GRAPHITE CAPS
- Publication number 20240161993
- Publication date May 16, 2024
- George Douglas Calvey
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CATHODE HEATER ASSEMBLY AND METHOD OF MANUFACTURE
- Publication number 20240096583
- Publication date Mar 21, 2024
- Elve Inc.
- Colin Andrew McElroy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MONOLITHIC HEATER FOR THERMIONIC ELECTRON CATHODE
- Publication number 20240055213
- Publication date Feb 15, 2024
- Applied Physics Technologies, Inc.
- Gerald G. MAGERA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Electron Source, Method of Manufacturing the Same, And Electron Bea...
- Publication number 20230317401
- Publication date Oct 5, 2023
- Hitachi High-Tech Corporation
- Toshiaki KUSUNOKI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON SOURCE AND METHOD FOR MANUFACTURING SAME, AND EMITTER AND...
- Publication number 20230317395
- Publication date Oct 5, 2023
- Denka Company Limited
- Daisuke ISHIKAWA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH-TEMPERATURE COMPONENT
- Publication number 20230235442
- Publication date Jul 27, 2023
- PLANSEE SE
- Bernhard Mayr-Schmoelzer
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
ELECTRON SOURCE, METHOD FOR MANUFACTURING SAME, EMITTER, AND DEVICE...
- Publication number 20230215679
- Publication date Jul 6, 2023
- Denka Company Limited
- Dai TSUKADA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CATHODE MECHANISM OF ELECTRON EMISSION SOURCE, AND METHOD FOR MANUF...
- Publication number 20230132046
- Publication date Apr 27, 2023
- NuFlare Technology, Inc.
- Ryoei KOBAYASHI
- 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
ELECTRON EMITTER AND METHOD OF FABRICATING SAME
- Publication number 20220189725
- Publication date Jun 16, 2022
- ASML NETHERLANDS B.V.
- Juying DOU
- 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
ELECTRON SOURCE AND PRODUCTION METHOD THEREFOR
- Publication number 20210193427
- Publication date Jun 24, 2021
- DENKA COMPANY LIMITED
- Toshiyuki MORISHITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CATHODE MATERIAL
- Publication number 20210175067
- Publication date Jun 10, 2021
- PLANSEE SE
- HANNES TRAXLER
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON EMITTER AND METHOD OF FABRICATING SAME
- Publication number 20210142975
- Publication date May 13, 2021
- ASML NETHERLANDS B.V.
- Juying Dou
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON GUN AND MANUFACTURING METHOD THEREFOR
- Publication number 20210125805
- Publication date Apr 29, 2021
- NEW JAPAN RADIO CO., LTD.
- Toru KIMURA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Emitter Structures for Enhanced Thermionic Emission
- Publication number 20210035765
- Publication date Feb 4, 2021
- Lockheed Martin Corporation
- Frans Hendrik Ebersohn
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON SOURCE AND PRODUCTION METHOD THEREFOR
- Publication number 20200126750
- Publication date Apr 23, 2020
- DENKA COMPANY LIMITED
- Toshiyuki MORISHITA
- 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
Cathode Emitter To Emitter Attachment System And Method
- Publication number 20200066475
- Publication date Feb 27, 2020
- GENERAL ELECTRIC COMPANY
- Gregory Steinlage
- 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
PLANAR GATE-INSULATED VACUUM CHANNEL TRANSISTOR
- Publication number 20190393012
- Publication date Dec 26, 2019
- International Business Machines Corporation
- INJO OK
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTROSTATIC GRID DEVICE TO REDUCE ELECTRON SPACE CHARGE
- Publication number 20190371582
- Publication date Dec 5, 2019
- Modern Electron, LLC
- Stephen E. Clark
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ESTIMATION OF CATHODE SPACE CURRENT FOR A THERMIONIC VACUUM TUBE US...
- Publication number 20190362926
- Publication date Nov 28, 2019
- Panayotis Tsambos
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON SOURCE AND PRODUCTION METHOD THEREFOR
- Publication number 20190221399
- Publication date Jul 18, 2019
- DENKA COMPANY LIMITED
- Toshiyuki MORISHITA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON EMITTER AND METHOD OF FABRICATING SAME
- Publication number 20190172674
- Publication date Jun 6, 2019
- ASML Netherlands B.V.
- Juying DOU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Creep Resistant Electron Emitter Material And Fabrication Method
- Publication number 20190103243
- Publication date Apr 4, 2019
- GENERAL ELECTRIC COMPANY
- Andrew Marconnet
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

of thermionic cathodes

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

X-ray cathode focusing element

Cathode heater assembly and method of manufacture

Cathode mechanism of electron emission source, and method for manuf...

Annular gap cathodes with graphite caps

Monolithic heater for thermionic electron cathode

Electron source, method for manufacturing same, emitter, and device...

Electron emitter and method of fabricating same

Electron gun and manufacturing method therefor

Apparatus including thermal energy harvesting thermionic device int...

Cathode material

Electrostatic grid device to reduce electron space charge

Electron emitter and method of fabricating same

Thermionic emission device and method for making the same

Electron source and production method therefor

Estimation of cathode space current for a thermionic vacuum tube us...

Emitter structures for enhanced thermionic emission

Thermionic tungsten/scandate cathodes and method of making the same

Cathode emitter to emitter attachment system and method

Electron source and production method therefor

Planar gate-insulated vacuum channel transistor

Low work function electron beam filament assembly

Electron emitter and method of fabricating same

X-ray tube and method of manufacturing the same

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

Thermionic cathode with a graphene sealing layer and method of maki...

Method for preparing pressed scandia-doped dispenser cathodes using...

Low temperature, high-brightness, cathode

High-brightness lanthanum hexaboride cathode and method for manufac...

Electron source and production method therefor

Creep resistant electron emitter material and fabrication method

Patents Applicationslast 30 patents

CATHODE HEATER ASSEMBLY AND METHOD OF MANFACTURE

LAMINATE, ELECTRON SOURCE AND ELECTRONIC DEVICE CONTAINING LAMINATE...

MONOLITHIC HEATER FOR THERMIONIC ELECTRON CATHODE

ANNULAR GAP CATHODES WITH GRAPHITE CAPS

CATHODE HEATER ASSEMBLY AND METHOD OF MANUFACTURE

MONOLITHIC HEATER FOR THERMIONIC ELECTRON CATHODE

Electron Source, Method of Manufacturing the Same, And Electron Bea...

ELECTRON SOURCE AND METHOD FOR MANUFACTURING SAME, AND EMITTER AND...

HIGH-TEMPERATURE COMPONENT

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

CATHODE MECHANISM OF ELECTRON EMISSION SOURCE, AND METHOD FOR MANUF...

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

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

ELECTRON EMITTER AND METHOD OF FABRICATING SAME

THERMIONIC EMISSION DEVICE AND METHOD FOR MAKING THE SAME

ELECTRON SOURCE AND PRODUCTION METHOD THEREFOR

CATHODE MATERIAL

ELECTRON EMITTER AND METHOD OF FABRICATING SAME

ELECTRON GUN AND MANUFACTURING METHOD THEREFOR

Emitter Structures for Enhanced Thermionic Emission

ELECTRON SOURCE AND PRODUCTION METHOD THEREFOR

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

Cathode Emitter To Emitter Attachment System And Method

Thermionic Tungsten/Scandate Cathodes and Method of Making The Same

PLANAR GATE-INSULATED VACUUM CHANNEL TRANSISTOR

ELECTROSTATIC GRID DEVICE TO REDUCE ELECTRON SPACE CHARGE

ESTIMATION OF CATHODE SPACE CURRENT FOR A THERMIONIC VACUUM TUBE US...

ELECTRON SOURCE AND PRODUCTION METHOD THEREFOR

ELECTRON EMITTER AND METHOD OF FABRICATING SAME

Creep Resistant Electron Emitter Material And Fabrication Method