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.

Date of Patent:
Jul. 07, 2026

Filed:

Apr. 05, 2023
Applicant:

Shimadzu Corporation, Kyoto, JP;

Inventors:

Tomoyuki Oshiro, Kyoto, JP;

Kosuke Uchiyama, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/40 (2006.01); H01J 49/00 (2006.01);
U.S. Cl.
CPC ...
H01J 49/401 (2013.01); H01J 49/0031 (2013.01);
Abstract

An orthogonal acceleration electrode () deflects the flight direction of ions incident from an ion source (). A flight-path-defining electrode () defines a flight path of the deflected ions. An ion detection section () detects an ion after the flight of the ion through the flight path. A voltage application section () applies voltages to the orthogonal acceleration electrode and flight-path-defining electrode. A measurement control section () acquires mass spectrum data by conducting a measurement of a known ion generated from a predetermined amount of known sample, under a plurality of measurement conditions which differ from each other in the value of the voltage applied to the orthogonal acceleration electrode. A score-value calculation section () calculates a score value based on a predetermined calculation formula, using the intensity of a mass peak and the mass-resolving power in the mass spectrum data acquired under each of the measurement conditions.


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