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. 30, 2021
Filed:
Jul. 18, 2017
Shimadzu Corporation, Kyoto, JP;
Wataru Fukui, Kyoto, JP;
SHIMADZU CORPORATION, Kyoto, JP;
Abstract
The mass spectrometer includes an ionization unit, an ion transport unit, and a mass separation unit that separates transported ions according to a mass-to-charge ratio. The ion transport unit includes a transport electrode member, a voltage generator that applies a voltage to the transport electrode member, and a voltage controller that changes a voltage applied to the transport electrode member while ionization is performed. The voltage controller switches between a first voltage state in which charged particles generated in the ionization unit can enter the mass separation unit, and a second voltage state in which the charged particles cannot enter the mass separation unit, and switches a voltage state of the transport electrode member between the first voltage state and the second voltage state.