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. 22, 2009
Filed:
Mar. 12, 2007
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
A mass spectrometry device includes an ion source for ionizing a sample, an ion trap for trapping ions ionized by the ion source. A control unit for controlling voltages applied to lenses forming part of the ion trap, and a detection unit for detecting the ions trapped by said ion trap. The control unit causes a trap potential to be generated on a central axis of quadrupole rods forming part of the ion trap, causes part of the trapped ions to be oscillated in an intermediate direction between the quadrupole rods which are mutually adjacent to each other, and applies a voltage for ejecting the oscillated ions in a central-axis direction of the quadrupole rods by generating an extraction field.