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:
Jul. 02, 2024
Filed:
Apr. 19, 2022
Shimadzu Corporation, Kyoto, JP;
Hiroyuki Miura, Kyoto, JP;
Hideaki Izumi, Kyoto, JP;
SHIMADZU CORPORATION, Kyoto, JP;
Abstract
A mass spectrometerincludes a vacuum containerdivided into a first chambercontaining an ion trapand a second chambercontaining a time-of-flight mass spectrometer. The ion trapis held within an ion-trap-holding spacesurrounded by a wall. In this wall, a cooling-gas discharge portis formed in addition to an introduction-side ion passage portand an ejection-side ion passage port. A cooling gas supplied into an ion-capturing spaceof the ion trapis discharged from the ion-trap-holding spacethrough the three ports. The provision of the cooling-gas discharge portreduces the amount of cooling gas flowing into the ejection-side ion passage portand interfering with the ejection of ions from the ion trapinto the time-of-flight mass spectrometer. Consequently, the detection intensity of the ions is improved.