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:
Dec. 14, 2021

Filed:

May. 14, 2018
Applicant:

Shimadzu Corporation, Kyoto, JP;

Inventors:

Tomoyuki Oshiro, Kyoto, JP;

Yoshikatsu Umemura, Kyoto, JP;

Kazuma Maeda, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/42 (2006.01); H01J 49/00 (2006.01); H01J 49/02 (2006.01); H01J 49/06 (2006.01); H01J 49/16 (2006.01); H01J 49/40 (2006.01);
U.S. Cl.
CPC ...
H01J 49/4215 (2013.01); H01J 49/0031 (2013.01); H01J 49/0045 (2013.01); H01J 49/022 (2013.01); H01J 49/062 (2013.01); H01J 49/063 (2013.01); H01J 49/165 (2013.01); H01J 49/401 (2013.01); H01J 49/429 (2013.01);
Abstract

To acquire a mass spectrum for a wide mass range, a normal analysis execution controlling unit controls components to repeatedly perform measurement while changing setting m/z by a predetermined m/z at a time, and a mass spectrum summarizing processing unit summarizes data pieces each obtained by each time of measurement to generate the mass spectrum. Radio-frequency voltage applied to an ion guide and the like is changed based on the setting m/z. The radio-frequency voltage for the setting m/z is determined using a table in which a relationship between a position on an axis between upper and lower limits of the mass range and the radio-frequency voltage is substantially the same regardless of the mass range.


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