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:
Jun. 13, 2023
Filed:
Jul. 23, 2021
Applicant:
Jeol Ltd., Tokyo, JP;
Inventors:
Takaomi Yokoyama, Tokyo, JP;
Takanori Murano, Tokyo, JP;
Assignee:
JEOL Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 23/2252 (2018.01); G01N 23/2209 (2018.01); G01N 23/2276 (2018.01);
U.S. Cl.
CPC ...
G01N 23/2252 (2013.01); G01N 23/2209 (2018.02); G01N 23/2276 (2013.01); G01N 2223/079 (2013.01);
Abstract
Spectrums are measured by irradiating an electron beam on a sample while varying an accelerating potential and by detecting X-rays emitted from the sample. A normalizer unit normalizes the spectrums and thereby calculates normalized spectrums. A difference calculator unit calculates difference spectrums based on the normalized spectrums. A search unit performs a search in a database for each comparison difference spectrum, and identifies compounds contained in the sample.