公开(公告)号：US20230420211A1

公开(公告)日：2023-12-28

申请号：US18252992

申请日：2021-11-16

Applicant: NCX Corporation

Inventor： Cheng QIAN

IPC: H01J9/02

CPC classification number: H01J9/025

Abstract: A method for fabricating an electron field emission cathode, the field emission cathode including a substrate having a field emission material layer engaged therewith, where the field emission material incorporates a carbon nanotube material and a metal oxide. The field emission material is produced via a sol-gel process to improve field emission characteristics of the field emission cathode and field emission cathode devices implementing such cathodes.

公开(公告)号：US20230411102A1

公开(公告)日：2023-12-21

申请号：US18247263

申请日：2021-09-29

Applicant: NCX Corporation

Inventor： Cheng QIAN

IPC: H01J9/02

CPC classification number: H01J9/025

Abstract: A method for fabricating a field emission cathode, the field emission cathode including a substrate having a field emission layer engaged therewith, where the field emission layer includes a plurality of purified carbon nanotubes. The carbon nanotubes are purified via a graphitization or annealing process.

公开(公告)号：US20230411104A1

公开(公告)日：2023-12-21

申请号：US18247298

申请日：2021-09-29

Applicant: NCX Corporation

Inventor： Cheng QIAN

IPC: H01J9/02 ,  H01J1/304

CPC classification number: H01J9/025 ,  H01J2201/30469 ,  H01J1/3048

Abstract: A method for fabricating an electron field emission cathode, the field emission cathode including a substrate having a field emission layer engaged therewith, where the field emission layer incorporates modified carbon nanotubes and a matrix material to improve field emission characteristics of the cathode and field emission cathode devices implementing such cathodes.

公开(公告)号：US20250006448A1

公开(公告)日：2025-01-02

申请号：US18439285

申请日：2024-02-12

Applicant: NCX Corporation

Inventor： Cheng QIAN

IPC: H01J9/02

Abstract: A method for fabricating an electron field emission cathode, the field emission cathode including a substrate having a field emission material layer engaged therewith, where the field emission material incorporates a carbon nanotube material and a metal oxide. The field emission material is produced via a sol-gel process to improve field emission characteristics of the field emission cathode and field emission cathode devices implementing such cathodes.

公开(公告)号：US20240079197A1

公开(公告)日：2024-03-07

申请号：US18247262

申请日：2021-09-29

Applicant: NCX Corporation

Inventor： Jian ZHANG ,  Cheng QIAN

IPC: H01J9/02 ,  B08B7/02 ,  H01J1/304

CPC classification number: H01J9/025 ,  B08B7/026 ,  H01J1/3048 ,  H01J2209/017

Abstract: A method and system for cleaning a field emission cathode device, the field emission cathode device including a substrate having a field emission layer engaged therewith, includes engaging the field emission cathode device with a vibration device such that the substrate is disposed above the field emission layer. The field emission cathode device is then vibrated with the vibration device in an X, Y, or Z direction at a predetermined frequency and at a predetermined amplitude for a predetermined time duration so as to clean the field emission cathode device by dislodging non-embedded particles from the field emission layer.

公开(公告)号：US20230411105A1

公开(公告)日：2023-12-21

申请号：US18250945

申请日：2021-10-28

Applicant: NCX Corporation

Inventor： Cheng QIAN

IPC: H01J9/02 ,  C01B32/174

CPC classification number: H01J9/025 ,  C01B32/174 ,  C01B2202/22 ,  C01P2006/40

Abstract: A method for fabricating an electron field emission cathode, the field emission cathode including a substrate having a field emission material layer engaged therewith, where the field emission material incorporates a carbon nanotube material and is produced via a sol-gel process to improve field emission characteristics of the field emission cathode and field emission cathode devices implementing such cathodes.

公开(公告)号：US20230411103A1

公开(公告)日：2023-12-21

申请号：US18247266

申请日：2021-09-29

Applicant: NCX Corporation

Inventor： Cheng QIAN

IPC: H01J9/02 ,  C25D15/00

CPC classification number: H01J9/025 ,  C25D15/00

Abstract: A method for fabricating an electron field emission cathode, the field emission cathode including a substrate having a field emission layer engaged therewith, where the field emission layer incorporates a carbon nanotube and metal composite film to improve adhesion between the material and the substrate and to improve field emission characteristics of the cathode and field emission cathode devices implementing such cathodes.