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. 01, 2013
Filed:
May. 18, 2009
Applicants:
Yoon-chul Son, Hwaseong-si, KR;
Yong-chul Kim, Seoul, KR;
In-taek Han, Seoul, KR;
Ho-suk Kang, Seoul, KR;
Inventors:
Yoon-chul Son, Hwaseong-si, KR;
Yong-chul Kim, Seoul, KR;
In-taek Han, Seoul, KR;
Ho-suk Kang, Seoul, KR;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 17/49 (2012.01);
U.S. Cl.
CPC ...
Abstract
A field emission device includes a substrate including a groove; a metal electrode disposed on a bottom surface of the groove; and a carbon nanotube ('CNT') emitter. The CNT emitter includes an intermetallic compound layer disposed on the metal electrode and CNTs disposed on the intermetallic compound layer.