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.

Date of Patent:
Aug. 01, 2017

Filed:

May. 30, 2014
Applicant:

Hitachi High-technologies Corporation, Tokyo, JP;

Inventors:

Akio Yamamoto, Tokyo, JP;

Toshimitsu Watanabe, Tokyo, JP;

Shigeo Ootsuki, Tokyo, JP;

Kazuki Kajima, Tokyo, JP;

Toshiaki Yanokura, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/00 (2006.01); H01J 49/10 (2006.01); H01J 49/04 (2006.01);
U.S. Cl.
CPC ...
H01J 49/0031 (2013.01); H01J 49/0409 (2013.01); H01J 49/0495 (2013.01); H01J 49/102 (2013.01);
Abstract

This mass spectrometric device is provided with a sample container () for placing a measurement sample () therein, a detector () analyzing the mass of a sample and detecting a drug, or the like, in the sample, a dielectric container () linked to the sample container for running a discharge current into air to provoke ionization, a valve () for sending air intermittently to the sample container, the dielectric container and the detector, a barrier discharge high-voltage power source () to be discharged by the dielectric container, a current detection unit () connected to the barrier discharge high-voltage power source for detecting a discharge current (), a discharge-start timing detection unit () connected to the current detection unit for detecting the discharge-start timing based on the current detection result from the current detection unit to send a discharge-start timing signal (), and a control unit () for controlling each constituent.


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