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:
Sep. 10, 2024
Filed:
Jul. 10, 2019
Applicant:
Hitachi High-tech Corporation, Tokyo, JP;
Inventors:
Kouji Ishiguro, Tokyo, JP;
Kiyomi Yoshinari, Tokyo, JP;
Assignee:
Hitachi High-Tech Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/04 (2006.01); H01J 49/16 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0422 (2013.01); H01J 49/0036 (2013.01); H01J 49/165 (2013.01);
Abstract
An object of the invention is to provide a mass spectrometer capable of preventing a sample from remaining inside an ion source container for a long time. In the mass spectrometer according to the invention, in addition to a first gas used for ionizing an ion source, a second gas flowing toward an exhaust unit along an inner wall of the ion source container is supplied inside the ion source container (see FIG.).