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. 13, 2026
Filed:
Feb. 08, 2023
Applicant:
Jeol Ltd., Tokyo, JP;
Inventor:
Shigeyuki Morishita, Tokyo, JP;
Assignee:
JEOL Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/28 (2006.01); H01J 37/153 (2006.01);
U.S. Cl.
CPC ...
H01J 37/28 (2013.01); H01J 37/153 (2013.01); H01J 2237/1532 (2013.01); H01J 2237/1534 (2013.01);
Abstract
An aberration corrector includes a first multipole element for producing a hexapole field, a second multipole element for producing a hexapole field, and a transfer lens system disposed between the first and second multipole elements. The first and second multipole elements are arranged along an optical axis. At least one of the hexapole fields respectively produced by the first multipole element and the second multipole element varies in strength along the optical axis.