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:
Mar. 09, 2010
Filed:
Mar. 08, 2006
Yuichiro Hashimoto, Tachikawa, JP;
Hideki Hasegawa, Tachikawa, JP;
Takashi Baba, Kawagoe, JP;
Izumi Waki, Tokyo, JP;
Yuichiro Hashimoto, Tachikawa, JP;
Hideki Hasegawa, Tachikawa, JP;
Takashi Baba, Kawagoe, JP;
Izumi Waki, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a mass spectrometer introducing ions produced at an ion source, and including quadrupole rods which have an inlet and an outlet and to which a radio-frequency voltage is applied, the mass spectrometer, i.e., a mass spectrometry device implemented by a linear trap which exhibits high ejection efficiency, high mass resolution, and low ejection energy, executes the following steps: Trapping at least part of the ions by a trap potential generated on the central axis of a quadrupole field, oscillating part of the trapped ions in an intermediate direction between the mutually-adjacent quadrupole rods, ejecting the oscillated ions by an extraction field, and detecting the ejected ions or introducing the ejected ions into another detection process.