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:
Jul. 06, 2010
Filed:
Dec. 30, 2003
Applicants:
Ho Soeb Kim, Chungcheongnam-do, KR;
Seung Joon Ahn, Chungcheongnam-do, KR;
Dae Wook Kim, Chungcheongnam-do, KR;
Inventors:
Ho Soeb Kim, Chungcheongnam-do, KR;
Seung Joon Ahn, Chungcheongnam-do, KR;
Dae Wook Kim, Chungcheongnam-do, KR;
Assignee:
Cebt Co., Ltd., Chungcheongnam-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 37/352 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a new extractor for a micro-column and an alignment method of the aperture of the extractor and an electron emitter for a micro-column. Further, the present invention provides a measuring system, a method for measuring, and an alignment method using the principle of the alignment.