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:
Feb. 23, 2016
Filed:
Jan. 10, 2014
Applicant:
Korea University Research and Business Foundation, Seoul, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 9/02 (2006.01); H01J 19/24 (2006.01); H01J 1/304 (2006.01); H01J 3/02 (2006.01);
U.S. Cl.
CPC ...
H01J 19/24 (2013.01); H01J 1/304 (2013.01); H01J 3/021 (2013.01); H01J 9/025 (2013.01);
Abstract
An electric field emitting source is equipped with an electron emitting film which comprises a nano-sized electron emitting substance and has a first surface and a second surface constituting the surface opposite thereto, and a cathode which secures one end of the electron emitting film and comprises a first block and a second block respectively corresponding to the first surface and the second surface of the electron emitting film.