Cathodes

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CPC
H01J23/04

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HELECTRICITY H01Electric elements H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS H01J23/00Details of transit-time tubes of the types covered by group H01J25/00

Current Industry

H01J23/04Cathodes

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Dielectric coated plasmonic photoemitter
- Patent number 12,183,535
- Issue date Dec 31, 2024
- Board of Trustees of Michigan State University
- Peng Zhang
- 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
Vacuum electron tube with planar cathode based on nanotubes or nano...
- Patent number 10,720,298
- Issue date Jul 21, 2020
- Thales
- Jean-Paul Mazellier
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Equilibration of a multibeam inductive output tube
- Patent number 10,490,383
- Issue date Nov 26, 2019
- Thales
- Claude Bel
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun thermal dissipation in a vacuum
- Patent number 10,403,465
- Issue date Sep 3, 2019
- Varex Imaging Corporation
- Chris Ferrari
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun adjustment in a vacuum
- Patent number 10,395,880
- Issue date Aug 27, 2019
- Varex Imaging Corporation
- Chris Ferrari
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Carburized La2O3 and Lu2O3 co-doped Mo filament cathode
- Patent number 10,388,484
- Issue date Aug 20, 2019
- Beijing University of Technology
- Jinshu Wang
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Electron gun, electron tube and high-frequency circuit system
- Patent number 10,276,339
- Issue date Apr 30, 2019
- NEC NETWORK AND SENSOR SYSTEMS, LTD.
- Yukihira Nakazato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron beam modulator based on a nonlinear transmission line
- Patent number 10,109,447
- Issue date Oct 23, 2018
- The United States of America as represented by the Secretary of the Air Force
- Brad W. Hoff
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Perovskites as ultra-low work function electron emission materials
- Patent number 10,074,505
- Issue date Sep 11, 2018
- Wisconsin Alumni Research Foundation
- Ryan Matthew Jacobs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Traveling wave tube and high-frequency circuit system
- Patent number 10,068,738
- Issue date Sep 4, 2018
- NEC Network and Sensor Systems, Ltd.
- Takatsugu Munehiro
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Detecting system based on terahertz wave
- Patent number 9,852,871
- Issue date Dec 26, 2017
- Tsinghua University
- Peng Liu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetron
- Patent number 9,852,872
- Issue date Dec 26, 2017
- Toshiba Hokuto Electronics Corporation
- Masatoshi Higashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coaxial amplifier device
- Patent number 9,819,320
- Issue date Nov 14, 2017
- The Government of the United States of America as Represented by the Secretar...
- Brad W. Hoff
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
X-ray tube
- Patent number 9,653,248
- Issue date May 16, 2017
- Toshiba Electron Tubes & Devices Co., Ltd.
- Tomonari Ishihara
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Magnetron
- Patent number 9,653,246
- Issue date May 16, 2017
- Toshiba Hokuto Electronics Corporation
- Naoya Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetron
- Patent number 9,318,296
- Issue date Apr 19, 2016
- E2V Technologies (UK) Limited
- David Bernard Fox
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor device for electron emission in a vacuum
- Patent number 9,305,734
- Issue date Apr 5, 2016
- Thales
- Jean-Claude Jacquet
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum encapsulated hermetically sealed diamond amplified cathode c...
- Patent number 8,922,107
- Issue date Dec 30, 2014
- Brookhaven Science Associates, LLC
- Triveni Rao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optically controlled cold-cathode electron tube
- Patent number 8,427,039
- Issue date Apr 23, 2013
- Thales
- Pierre Legagneux
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Active electronically steered cathode emission
- Patent number 8,330,345
- Issue date Dec 11, 2012
- L-3 Communications Corporation
- Mark Frederick Kirshner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Device for generation of microwaves
- Patent number 8,115,392
- Issue date Feb 14, 2012
- BAE Systems Bofors AB
- Magnus Karlsson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Field-emission cathode, with optical control
- Patent number 8,035,295
- Issue date Oct 11, 2011
- Thales
- Pierre Legagneux
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Device for generation of microwaves
- Patent number 7,994,966
- Issue date Aug 9, 2011
- BAE Systems Bofors AB
- Fredrik Olsson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron gun and magnetic circuit for an improved THz electromagnet...
- Patent number 7,808,182
- Issue date Oct 5, 2010
- Sarnoff Corporation
- David Arthur New
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Power supply unit, high-frequency circuit system and heater voltage...
- Patent number 7,800,311
- Issue date Sep 21, 2010
- Netcomsec Co. Ltd.
- Akira Chiba
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Microscale high-frequency vacuum electrical device
- Patent number 7,736,210
- Issue date Jun 15, 2010
- Wisconsin Alumni Research Foundation
- Robert H. Blick
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cold-cathode electron source, microwave tube using it, and producti...
- Patent number 7,391,145
- Issue date Jun 24, 2008
- Sumitomo Electric Industries, Ltd.
- Natsuo Tatsumi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Device for producing high frequency microwaves
- Patent number 7,365,493
- Issue date Apr 29, 2008
- Kist Europe Korea Institute of Science and Technology Europe Forschungsgesell...
- Chun Sik Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Magnetron for microwave ovens
- Patent number 6,867,405
- Issue date Mar 15, 2005
- Samsung Electronics Co., Ltd.
- Jong-Chull Shon
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Travelling-Wave Tube, Electron Gun, and Power Amplification System
- Publication number 20250070736
- Publication date Feb 27, 2025
- Huawei Technologies Co., Ltd
- Qianfu Cheng
- H01 - BASIC ELECTRIC ELEMENTS
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
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
TECHNIQUE FOR MULTI-STREAM ELECTRON BEAM GENERATION WITH DIFFERENT...
- Publication number 20230420212
- Publication date Dec 28, 2023
- UNM Rainforest Innovations
- Khandakar Nusrat ISLAM
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Dielectric Coated Plasmonic Photoemitter
- Publication number 20230103140
- Publication date Mar 30, 2023
- Board of Trustees of Michigan State University
- Peng ZHANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON GUN THERMAL DISSIPATION IN A VACUUM
- Publication number 20190057829
- Publication date Feb 21, 2019
- VAREX IMAGING CORPORATION
- Chris Ferrari
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EQUILIBRATION OF A MULTIBEAM INDUCTIVE OUTPUT TUBE
- Publication number 20180294132
- Publication date Oct 11, 2018
- THALES
- Claude BEL
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ELECTRON GUN, ELECTRON TUBE AND HIGH-FREQUENCY CIRCUIT SYSTEM
- Publication number 20180286622
- Publication date Oct 4, 2018
- NEC NETWORK AND SENSOR SYSTEMS, LTD.
- Yukihira NAKAZATO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TARGET FOR BARIUM-SCANDATE DISPENSER CATHODE
- Publication number 20180158639
- Publication date Jun 7, 2018
- Koninklijke Philips N.V.
- Georg Friedrich Gaertner
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
DETECTING SYSTEM BASED ON TERAHERTZ WAVE
- Publication number 20170352516
- Publication date Dec 7, 2017
- TSINGHUA UNIVERSITY
- PENG LIU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PEROVSKITES AS ULTRA-LOW WORK FUNCTION ELECTRON EMISSION MATERIALS
- Publication number 20170207055
- Publication date Jul 20, 2017
- Wisconsin Alumni Research Foundation
- Ryan Matthew Jacobs
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TRAVELING WAVE TUBE AND HIGH-FREQUENCY CIRCUIT SYSTEM
- Publication number 20170140892
- Publication date May 18, 2017
- NEC Network and Sensor Systems, Ltd.
- Takatsugu MUNEHIRO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Magnetron
- Publication number 20160172145
- Publication date Jun 16, 2016
- TOSHIBA HOKUTO ELECTRONICS CORPORATION
- Masatoshi Higashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SEMICONDUCTOR DEVICE FOR ELECTRON EMISSION IN A VACUUM
- Publication number 20140326943
- Publication date Nov 6, 2014
- THALES
- Jean-Claude Jacquet
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
TARGET FOR BARIUM-SCANDATE DISPENSER CATHODE
- Publication number 20140174913
- Publication date Jun 26, 2014
- Koninklijke Philips N.V.
- Georg Friedrich Gaertner
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
Vacuum Encapsulated Hermetically Sealed Diamond Amplified Cathode C...
- Publication number 20140117837
- Publication date May 1, 2014
- Triveni Rao
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MAGNETRON
- Publication number 20120235564
- Publication date Sep 20, 2012
- E2V TECHNOLOGIES (UK) LIMITED
- David Bernard Fox
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FABRICATION OF AN INTEGRATED TERAHERTZ SOURCE USING FIELD EMITTER A...
- Publication number 20120119183
- Publication date May 17, 2012
- Boris G. Kharas
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DEVICE FOR GENERATION OF MICROWAVES
- Publication number 20120025703
- Publication date Feb 2, 2012
- Magnus Karlsson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
DEVICE FOR GENERATION OF MICROWAVES
- Publication number 20110181460
- Publication date Jul 28, 2011
- Frederik Olsson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ACTIVE ELECTRONICALLY STEERED CATHODE EMISSION
- Publication number 20110050096
- Publication date Mar 3, 2011
- Mark Frederick Kirshner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICALLY CONTROLLED COLD-CATHODE ELECTRON TUBE
- Publication number 20100072872
- Publication date Mar 25, 2010
- Pierre Legagneux
- B82 - NANO-TECHNOLOGY
Information Patent Application
MULTIBEAM DOUBLY CONVERGENT ELECTRON GUN
- Publication number 20100045160
- Publication date Feb 25, 2010
- Manhattan Technologies Ltd.
- James A. Dayton, JR.
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FIELD-EMISSION CATHODE, WITH OPTICAL CONTROL
- Publication number 20090261727
- Publication date Oct 22, 2009
- THALES
- Pierre Legagneux
- B82 - NANO-TECHNOLOGY
Information Patent Application
POWER SUPPLY UNIT, HIGH-FREQUENCY CIRCUIT SYSTEM AND HEATER VOLTAGE...
- Publication number 20080231197
- Publication date Sep 25, 2008
- NEC Microwave Tube, Ltd.
- Akira CHIBA
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
ELECTRON GUN AND MAGNETIC CIRCUIT FOR AN IMPROVED THZ ELECTROMAGNET...
- Publication number 20080084153
- Publication date Apr 10, 2008
- David Arthur New
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
MICROSCALE HIGH-FREQUENCY VACUUM ELECTRICAL DEVICE
- Publication number 20080061700
- Publication date Mar 13, 2008
- Robert H. Blick
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ROTARY VACUUM FEEDTHROUGH FOR ROTATABLE MAGNETRONS
- Publication number 20070227881
- Publication date Oct 4, 2007
- Applied Materials GmbH & Co. KG
- Harald Gaertner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Cold-cathode electron source, microwave tube using it, and producti...
- Publication number 20060001360
- Publication date Jan 5, 2006
- Sumitomo Electric Industries, Ltd.
- Natsuo Tatsumi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Device for producing high frequency microwaves
- Publication number 20040118840
- Publication date Jun 24, 2004
- Chun Sik Lee
- H01 - BASIC ELECTRIC ELEMENTS

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Dielectric coated plasmonic photoemitter

Cathode heater assembly and method of manufacture

Vacuum electron tube with planar cathode based on nanotubes or nano...

Equilibration of a multibeam inductive output tube

Electron gun thermal dissipation in a vacuum

Electron gun adjustment in a vacuum

Carburized La2O3 and Lu2O3 co-doped Mo filament cathode

Electron gun, electron tube and high-frequency circuit system

Electron beam modulator based on a nonlinear transmission line

Perovskites as ultra-low work function electron emission materials

Traveling wave tube and high-frequency circuit system

Detecting system based on terahertz wave

Magnetron

Coaxial amplifier device

X-ray tube

Magnetron

Magnetron

Semiconductor device for electron emission in a vacuum

Vacuum encapsulated hermetically sealed diamond amplified cathode c...

Optically controlled cold-cathode electron tube

Active electronically steered cathode emission

Device for generation of microwaves

Field-emission cathode, with optical control

Device for generation of microwaves

Electron gun and magnetic circuit for an improved THz electromagnet...

Power supply unit, high-frequency circuit system and heater voltage...

Microscale high-frequency vacuum electrical device

Cold-cathode electron source, microwave tube using it, and producti...

Device for producing high frequency microwaves

Magnetron for microwave ovens

Patents Applicationslast 30 patents

Travelling-Wave Tube, Electron Gun, and Power Amplification System

CATHODE HEATER ASSEMBLY AND METHOD OF MANFACTURE

CATHODE HEATER ASSEMBLY AND METHOD OF MANUFACTURE

TECHNIQUE FOR MULTI-STREAM ELECTRON BEAM GENERATION WITH DIFFERENT...

Dielectric Coated Plasmonic Photoemitter

ELECTRON GUN THERMAL DISSIPATION IN A VACUUM

EQUILIBRATION OF A MULTIBEAM INDUCTIVE OUTPUT TUBE

ELECTRON GUN, ELECTRON TUBE AND HIGH-FREQUENCY CIRCUIT SYSTEM

TARGET FOR BARIUM-SCANDATE DISPENSER CATHODE

DETECTING SYSTEM BASED ON TERAHERTZ WAVE

PEROVSKITES AS ULTRA-LOW WORK FUNCTION ELECTRON EMISSION MATERIALS

TRAVELING WAVE TUBE AND HIGH-FREQUENCY CIRCUIT SYSTEM

Magnetron

SEMICONDUCTOR DEVICE FOR ELECTRON EMISSION IN A VACUUM

TARGET FOR BARIUM-SCANDATE DISPENSER CATHODE

Vacuum Encapsulated Hermetically Sealed Diamond Amplified Cathode C...

MAGNETRON

FABRICATION OF AN INTEGRATED TERAHERTZ SOURCE USING FIELD EMITTER A...

DEVICE FOR GENERATION OF MICROWAVES

DEVICE FOR GENERATION OF MICROWAVES

ACTIVE ELECTRONICALLY STEERED CATHODE EMISSION

OPTICALLY CONTROLLED COLD-CATHODE ELECTRON TUBE

MULTIBEAM DOUBLY CONVERGENT ELECTRON GUN

FIELD-EMISSION CATHODE, WITH OPTICAL CONTROL

POWER SUPPLY UNIT, HIGH-FREQUENCY CIRCUIT SYSTEM AND HEATER VOLTAGE...

ELECTRON GUN AND MAGNETIC CIRCUIT FOR AN IMPROVED THZ ELECTROMAGNET...

MICROSCALE HIGH-FREQUENCY VACUUM ELECTRICAL DEVICE

ROTARY VACUUM FEEDTHROUGH FOR ROTATABLE MAGNETRONS

Cold-cathode electron source, microwave tube using it, and producti...

Device for producing high frequency microwaves