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:
Jan. 02, 2024

Filed:

May. 10, 2022
Applicant:

Shimadzu Corporation, Kyoto, JP;

Inventors:

Takuya Suzumura, Kyoto, JP;

Daisuke Okumura, Kyoto, JP;

Tomoya Kudo, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/40 (2006.01);
U.S. Cl.
CPC ...
H01J 49/401 (2013.01); H01J 49/403 (2013.01); H01J 49/405 (2013.01);
Abstract

An orthogonal acceleration time-of-flight mass spectrometer () includes: an ion ejector () which ejects measurement-target ions in a predetermined direction; an orthogonal accelerator () which accelerates ions in a direction orthogonal to the direction in which the ions are ejected; a ring electrode () located between the ion ejector and the orthogonal accelerator, the ring electrode having an opening for allowing ions to pass through and arranged so that the central axis (C2) of the opening is shifted from the central axis (C1) of the ion ejector in a direction along the axis of the acceleration of the ions by the orthogonal accelerator; a reflectron electrode () which creates a repelling electric field for reversing the direction of the ions accelerated by the orthogonal accelerator; and an ion detector () which detects ions after the direction of flight of the ions is reversed by the reflectron electrode.


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