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:
Oct. 23, 2012
Filed:
Feb. 19, 2009
Applicants:
Makoto Yamamoto, Hyogo, JP;
Keisuke Koga, Ehime, JP;
Inventors:
Makoto Yamamoto, Hyogo, JP;
Keisuke Koga, Ehime, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/30 (2006.01); H01J 1/62 (2006.01);
U.S. Cl.
CPC ...
Abstract
A matrix-type cold-cathode electron source device includes a mesh structure () on which through-holes () are formed and drive portions (). The through-hole () has an opening diameter of 1/N or less of the alignment pitch of electron source elements () and the drive portions () drive the mesh structure () every 1/N of the alignment pitch of the electron source elements (). Thus it is possible to increase a resolution without reducing the size of an electron source.