Field emission cathodes

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CPC
H01J2201/304

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Parent Industries

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

Current Industry

H01J2201/304Field emission cathodes

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Field emission-type tomosynthesis system, emitter for field emissio...
- Patent number 12,087,540
- Issue date Sep 10, 2024
- CAT BEAM TECH CO., LTD.
- Jehwang Ryu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Electron emission device and electron microscope
- Patent number 12,051,557
- Issue date Jul 30, 2024
- National Institute of Advanced Industrial Science and Technology
- Katsuhisa Murakami
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Large scale stable field emitter for high current applications
- Patent number 11,955,306
- Issue date Apr 9, 2024
- MICRO-X LIMITED
- Robert C. Sheehy
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Field-emission type electron source and charged particle beam devic...
- Patent number 11,935,720
- Issue date Mar 19, 2024
- Dazhi Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Carbon nanotube yarn cathode using textile manufacturing methods
- Patent number 11,913,146
- Issue date Feb 27, 2024
- United States of America as represented by the Secretary of the Air Force
- Steven B. Fairchild
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Passive and active diamond-based electron emitters and ionizers
- Patent number 11,875,964
- Issue date Jan 16, 2024
- Physical Sciences, Inc.
- Jonathan D. Rameau
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composite, electrochemical active material composite using the comp...
- Patent number 11,870,060
- Issue date Jan 9, 2024
- Samsung Electronics Co., Ltd.
- Inhyuk Son
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Field-emission type electron source and charged particle beam devic...
- Patent number 11,848,169
- Issue date Dec 19, 2023
- Dazhi Chen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Composite, electrochemical active material composite using the comp...
- Patent number 11,837,714
- Issue date Dec 5, 2023
- Samsung Electronics Co., Ltd.
- Inhyuk Son
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Emitter with excellent structural stability and enhanced efficiency...
- Patent number 11,798,773
- Issue date Oct 24, 2023
- AweXome Ray, Inc.
- Se Hoon Gihm
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
CNT X-ray source apparatus including cathode electrode, emitter, ga...
- Patent number 11,791,122
- Issue date Oct 17, 2023
- Han Sung Lee
- 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
Method of producing microrods for electron emitters, and associated...
- Patent number 11,651,924
- Issue date May 16, 2023
- FEI Company
- Kun Liu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Emitter with excellent structural stability and enhanced efficiency...
- Patent number 11,600,462
- Issue date Mar 7, 2023
- AweXome Ray, Inc.
- Se Hoon Gihm
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Device for imaging 1-D nanomaterials
- Patent number 11,549,890
- Issue date Jan 10, 2023
- Tsinghua University
- Wen-Yun Wu
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Carbon nanotube field emitter and preparation method thereof
- Patent number 11,542,163
- Issue date Jan 3, 2023
- Tsinghua University
- Peng Liu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Emitter with excellent structural stability and enhanced efficiency...
- Patent number 11,532,453
- Issue date Dec 20, 2022
- AweXome Ray, Inc.
- Se Hoon Gihm
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Carbon-metal structure and method for manufacturing carbon-metal st...
- Patent number 11,527,378
- Issue date Dec 13, 2022
- Waseda University
- Suguru Noda
- B82 - NANO-TECHNOLOGY
Information Patent Grant
C-arm X-ray apparatus
- Patent number 11,490,865
- Issue date Nov 8, 2022
- ESSPEN GmbH
- Zahra Mohammadi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Emitter with excellent structural stability and enhanced efficiency...
- Patent number 11,456,145
- Issue date Sep 27, 2022
- AweXome Ray, Inc.
- Se Hoon Gihm
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Electron emission source based on graphene layer and method for mak...
- Patent number 11,437,213
- Issue date Sep 6, 2022
- Tsinghua University
- Xin-He Yang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Emitter, electron gun in which same is used, electronic device in w...
- Patent number 11,417,491
- Issue date Aug 16, 2022
- National Institute for Materials Science
- Jie Tang
- B82 - NANO-TECHNOLOGY
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
Field emission apparatus with superior structural stability and X-r...
- Patent number 11,195,684
- Issue date Dec 7, 2021
- AweXome Ray, Inc.
- Hong Soo Choi
- B82 - NANO-TECHNOLOGY
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
Cathode structure for cold field electron emission and method of fa...
- Patent number 11,158,479
- Issue date Oct 26, 2021
- National University of Singapore
- Anjam Khursheed
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tomosynthesis with shifting focal spot x-ray system using an addres...
- Patent number 11,076,820
- Issue date Aug 3, 2021
- Hologic, Inc.
- Andrew P. Smith
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Diamond semiconductor device
- Patent number 11,011,605
- Issue date May 18, 2021
- Evince Technology Ltd.
- Gareth Andrew Taylor
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tungsten alloy part, and discharge lamp, transmitting tube, and mag...
- Patent number 10,998,157
- Issue date May 4, 2021
- Kabushiki Kaisha Toshiba
- Shinichi Yamamoto
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
X-ray source apparatus and control method thereof
- Patent number 10,912,180
- Issue date Feb 2, 2021
- Korea University Research and Business Foundation
- Cheol Jin Lee
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
LARGE SCALE STABLE FIELD EMITTER FOR HIGH CURRENT APPLICATIONS
- Publication number 20240266136
- Publication date Aug 8, 2024
- MICRO-X LIMITED
- Robert C. SHEEHY
- B82 - NANO-TECHNOLOGY
Information Patent Application
FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR INCLUDIN...
- Publication number 20240234071
- Publication date Jul 11, 2024
- AweXome Ray, Inc.
- Hong Soo CHOI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
A UV SENSITIVE PHOTOCATHODE, A METHOD FOR PRODUCING A UV SENSITIVE...
- Publication number 20240234072
- Publication date Jul 11, 2024
- FENNO-AURUM OY
- Heikki Johannes Sipilä
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
EMITTER, FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR...
- Publication number 20240234074
- Publication date Jul 11, 2024
- AweXome Ray, Inc.
- Hong Soo CHOI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
A UV SENSITIVE PHOTOCATHODE, A METHOD FOR PRODUCING A UV SENSITIVE...
- Publication number 20240136139
- Publication date Apr 25, 2024
- FENNO-AURUM OY
- Heikki Johannes Sipilä
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Application
EMITTER, FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR...
- Publication number 20240136142
- Publication date Apr 25, 2024
- AweXome Ray, Inc.
- Hong Soo CHOI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR INCLUDIN...
- Publication number 20240136138
- Publication date Apr 25, 2024
- AweXome Ray, Inc.
- Hong Soo CHOI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
METHOD OF FORMING FIELD EMISSION CATHODES BY CO-ELECTRODEPOSITION
- Publication number 20230411104
- Publication date Dec 21, 2023
- NCX Corporation
- Cheng QIAN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SYSTEMS, DEVICES, AND METHODS FOR MULTISOURCE VOLUMETRIC SPECTRAL C...
- Publication number 20230375484
- Publication date Nov 23, 2023
- The University of North Carolina at Chapel Hill
- Christina Inscoe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
PASSIVE AND ACTIVE DIAMOND-BASED ELECTRON EMITTERS AND IONIZERS
- Publication number 20230005694
- Publication date Jan 5, 2023
- Physical Sciences, Inc.
- Jonathan D. Rameau
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
CARBON NANOTUBE (CNT) PASTE EMITTER, METHOD OF MANUFACTURING THE SA...
- Publication number 20220399177
- Publication date Dec 15, 2022
- Korea University Research and Business Foundation
- Cheol Jin LEE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CNT X-RAY SOURCE APPARATUS
- Publication number 20220246383
- Publication date Aug 4, 2022
- Han Sung LEE
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
ELECTRON EMISSION DEVICE AND ELECTRON MICROSCOPE
- Publication number 20220216026
- Publication date Jul 7, 2022
- NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Katsuhisa MURAKAMI
- 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
PASSIVE AND ACTIVE DIAMOND-BASED ELECTRON EMITTERS AND IONIZERS
- Publication number 20220037104
- Publication date Feb 3, 2022
- Physical Sciences, Inc.
- Jonathan D. Rameau
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FIELD EMISSION-TYPE TOMOSYNTHESIS SYSTEM, EMITTER FOR FIELD EMISSIO...
- Publication number 20220028644
- Publication date Jan 27, 2022
- UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG-HEE UNIVERSITY
- Jehwang RYU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CARBON-METAL STRUCTURE AND METHOD FOR MANUFACTURING CARBON-METAL ST...
- Publication number 20210375572
- Publication date Dec 2, 2021
- WASEDA UNIVERSITY
- Suguru NODA
- B82 - NANO-TECHNOLOGY
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 EMISSION SOURCE AND METHOD FOR MAKING THE SAME
- Publication number 20210193425
- Publication date Jun 24, 2021
- TSINGHUA UNIVERSITY
- XIN-HE YANG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
CATHODE STRUCTURE FOR COLD FIELD ELECTRON EMISSION AND METHOD OF FA...
- Publication number 20210159038
- Publication date May 27, 2021
- National University of Singapore
- Anjam KHURSHEED
- 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
CARBON NANOTUBE FIELD EMITTER AND PREPARATION METHOD THEREOF
- Publication number 20210094827
- Publication date Apr 1, 2021
- TSINGHUA UNIVERSITY
- PENG LIU
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
COMPOSITE, ELECTROCHEMICAL ACTIVE MATERIAL COMPOSITE USING THE COMP...
- Publication number 20210057729
- Publication date Feb 25, 2021
- Samsung Electronics Co., Ltd.
- Inhyuk SON
- B82 - NANO-TECHNOLOGY
Information Patent Application
COMPOSITE, ELECTROCHEMICAL ACTIVE MATERIAL COMPOSITE USING THE COMP...
- Publication number 20210050590
- Publication date Feb 18, 2021
- Samsung Electronics Co., Ltd.
- Inhyuk SON
- B82 - NANO-TECHNOLOGY
Information Patent Application
LARGE SCALE STABLE FIELD EMITTER FOR HIGH CURRENT APPLICATIONS
- Publication number 20210027972
- Publication date Jan 28, 2021
- MICRO-X LIMITED
- Robert C. SHEEHY
- B82 - NANO-TECHNOLOGY
Information Patent Application
FIELD EMISSION APPARATUS WITH SUPERIOR STRUCTURAL STABILITY AND X-R...
- Publication number 20210027969
- Publication date Jan 28, 2021
- aweXomeRay Co., Ltd.
- Hong Soo Choi
- B82 - NANO-TECHNOLOGY
Information Patent Application
CARBON NANOTUBE FIELD EMITTER AND PREPARATION METHOD THEREOF
- Publication number 20210017027
- Publication date Jan 21, 2021
- TSINGHUA UNIVERSITY
- PENG LIU
- C01 - INORGANIC CHEMISTRY
Information Patent Application
SILICON FIELD EFFECT EMITTER
- Publication number 20200388459
- Publication date Dec 10, 2020
- Siemens Healthcare GmbH
- Jörg Freudenberger
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
EMITTER, ELECTRON GUN IN WHICH SAME IS USED, ELECTRONIC DEVICE IN W...
- Publication number 20200388458
- Publication date Dec 10, 2020
- National Institute for Materials Science
- Jie TANG
- B82 - NANO-TECHNOLOGY
Information Patent Application
TOMOSYNTHESIS WITH SHIFTING FOCAL SPOT X-RAY SYSTEM USING AN ADDRES...
- Publication number 20200352531
- Publication date Nov 12, 2020
- HOLOGIC, INC.
- Andrew P. SMITH
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Field emission cathodes

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Field emission-type tomosynthesis system, emitter for field emissio...

Electron emission device and electron microscope

Large scale stable field emitter for high current applications

Field-emission type electron source and charged particle beam devic...

Carbon nanotube yarn cathode using textile manufacturing methods

Passive and active diamond-based electron emitters and ionizers

Composite, electrochemical active material composite using the comp...

Field-emission type electron source and charged particle beam devic...

Composite, electrochemical active material composite using the comp...

Emitter with excellent structural stability and enhanced efficiency...

CNT X-ray source apparatus including cathode electrode, emitter, ga...

Electron emitter and method of fabricating same

Method of producing microrods for electron emitters, and associated...

Emitter with excellent structural stability and enhanced efficiency...

Device for imaging 1-D nanomaterials

Carbon nanotube field emitter and preparation method thereof

Emitter with excellent structural stability and enhanced efficiency...

Carbon-metal structure and method for manufacturing carbon-metal st...

C-arm X-ray apparatus

Emitter with excellent structural stability and enhanced efficiency...

Electron emission source based on graphene layer and method for mak...

Emitter, electron gun in which same is used, electronic device in w...

Electron emitter and method of fabricating same

Field emission apparatus with superior structural stability and X-r...

Thermionic emission device and method for making the same

Cathode structure for cold field electron emission and method of fa...

Tomosynthesis with shifting focal spot x-ray system using an addres...

Diamond semiconductor device

Tungsten alloy part, and discharge lamp, transmitting tube, and mag...

X-ray source apparatus and control method thereof

Patents Applicationslast 30 patents

LARGE SCALE STABLE FIELD EMITTER FOR HIGH CURRENT APPLICATIONS

FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR INCLUDIN...

A UV SENSITIVE PHOTOCATHODE, A METHOD FOR PRODUCING A UV SENSITIVE...

EMITTER, FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR...

A UV SENSITIVE PHOTOCATHODE, A METHOD FOR PRODUCING A UV SENSITIVE...

EMITTER, FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR...

FIELD EMISSION ASSEMBLY AND ELECTROMAGNETIC WAVE GENERATOR INCLUDIN...

METHOD OF FORMING FIELD EMISSION CATHODES BY CO-ELECTRODEPOSITION

SYSTEMS, DEVICES, AND METHODS FOR MULTISOURCE VOLUMETRIC SPECTRAL C...

PASSIVE AND ACTIVE DIAMOND-BASED ELECTRON EMITTERS AND IONIZERS

CARBON NANOTUBE (CNT) PASTE EMITTER, METHOD OF MANUFACTURING THE SA...

CNT X-RAY SOURCE APPARATUS

ELECTRON EMISSION DEVICE AND ELECTRON MICROSCOPE

ELECTRON EMITTER AND METHOD OF FABRICATING SAME

PASSIVE AND ACTIVE DIAMOND-BASED ELECTRON EMITTERS AND IONIZERS

FIELD EMISSION-TYPE TOMOSYNTHESIS SYSTEM, EMITTER FOR FIELD EMISSIO...

CARBON-METAL STRUCTURE AND METHOD FOR MANUFACTURING CARBON-METAL ST...

THERMIONIC EMISSION DEVICE AND METHOD FOR MAKING THE SAME

ELECTRON EMISSION SOURCE AND METHOD FOR MAKING THE SAME

CATHODE STRUCTURE FOR COLD FIELD ELECTRON EMISSION AND METHOD OF FA...

ELECTRON EMITTER AND METHOD OF FABRICATING SAME

CARBON NANOTUBE FIELD EMITTER AND PREPARATION METHOD THEREOF

COMPOSITE, ELECTROCHEMICAL ACTIVE MATERIAL COMPOSITE USING THE COMP...

COMPOSITE, ELECTROCHEMICAL ACTIVE MATERIAL COMPOSITE USING THE COMP...

LARGE SCALE STABLE FIELD EMITTER FOR HIGH CURRENT APPLICATIONS

FIELD EMISSION APPARATUS WITH SUPERIOR STRUCTURAL STABILITY AND X-R...

CARBON NANOTUBE FIELD EMITTER AND PREPARATION METHOD THEREOF

SILICON FIELD EFFECT EMITTER

EMITTER, ELECTRON GUN IN WHICH SAME IS USED, ELECTRONIC DEVICE IN W...

TOMOSYNTHESIS WITH SHIFTING FOCAL SPOT X-RAY SYSTEM USING AN ADDRES...