US Patent 11152185 Electron source and production method therefor

Patent 11152185 was granted and assigned to Denka (company) on October, 2021 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Patent Applicant

Denka (company)

Current Assignee

Denka (company)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

111521850

Patent Inventor Names

Toshiyuki Morishita0

Shimpei Hirokawa0

Toshiyuki Ibayashi0

Hiromitsu Chatani0

Isao Sugimoto0

Date of Patent

October 19, 2021

Patent Application Number

202102170

Date Filed

February 17, 2021

Patent abstract

An electron source capable of suppressing consumption of an electron emission material is provide. The present invention provides an electron source including: an electron emission material; and, an electron emission-suppressing material covering a side surface of the electron emission material, wherein a work function of the electron emission-suppressing material is higher than that of the electron emission material, and a thermal emissivity of the electron emission-suppressing material is lower than that of the electron emission material.