The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2024
Filed:
Mar. 16, 2021
Applicant:
National Institute of Advanced Industrial Science and Technology, Tokyo, JP;
Inventors:
Katsuhisa Murakami, Tsukuba, JP;
Masayoshi Nagao, Tsukuba, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/312 (2006.01); H01J 1/90 (2006.01); C23C 16/34 (2006.01); H01J 9/02 (2006.01);
U.S. Cl.
CPC ...
H01J 1/312 (2013.01); C23C 16/342 (2013.01); H01J 1/90 (2013.01); H01J 9/027 (2013.01); H01J 2209/012 (2013.01);
Abstract
Provided in the present disclosure is an electron emitting elementincluding a laminated structure in which a first electrode, an electron accelerating layermade of an insulation film, a second electrode, and a cover filmare laminated in that order, in which the second electrode is an electrode which transmits electrons and emits electrons from a surface thereof, and the cover film is a film which transmits electrons, is a protective film made of a material different from that of the second electrode, and constitutes an electron emission surface