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:
Aug. 19, 2014
Filed:
Oct. 04, 2012
Applicant:
Mamoru Nakasuji, Yokohama, JP;
Inventor:
Mamoru Nakasuji, Yokohama, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 23/08 (2006.01); H01J 37/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Problems to be solved: To obtain higher brightness than Langmuir limit. Adjust brightness to the optimum value. Method of resolution: To obtain such beams, the following means and methods are effective. A charged particles beam apparatus consisting of a charged particle source, a beam drawing electrode, and a beam control electrode, wherein; after the charged particles beam source a condenser lens is designed, and brightness of the charged particles beam is adjusted by adjusting a magnification factor of said condenser lens.