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:
Apr. 05, 2022
Filed:
May. 16, 2018
Applicant:
Shimadzu Corporation, Kyoto, JP;
Inventor:
Tomoya Kudo, Kyoto, JP;
Assignee:
SHIMADZU CORPORATION, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/40 (2006.01); H01J 49/10 (2006.01); G01N 30/72 (2006.01); H01J 49/24 (2006.01); G01N 30/02 (2006.01);
U.S. Cl.
CPC ...
H01J 49/405 (2013.01); G01N 30/7233 (2013.01); H01J 49/10 (2013.01); H01J 49/24 (2013.01); G01N 2030/027 (2013.01);
Abstract
A no-electric field region (A) and an electric field region (B) are formed in a flight tube (). In the no-electric field region (A), ions introduced from an ion emission unit fly. In the electric field region (B), a reflectron () is provided and the ions having passed through the no-electric field region (A) are reflected to the no-electric field region (A) by an action of an electric field formed on an inner side of a plurality of electrodes (A,B). A through-hole (D) is formed in at least a part of the flight tube () to be closer to the electric field region (B) than the no-electric field region (A).