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.:

US 7230234 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 12, 2007

Filed:

Jul. 13, 2005
Applicant:

Tatsuji Kobayashi, Tokyo, JP;

Inventor:

Tatsuji Kobayashi, Tokyo, JP;

Assignee:

JEOL Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/40 (2006.01); B01D 59/44 (2006.01); H01J 49/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An orthogonal acceleration time-of-flight (oa-TOF) mass spectrometer has an ion source producing ions, a first region of a low degree of vacuum, an ion reservoir, and a second region of a high degree of vacuum. A space for transporting the ions produced by the ion source is placed in the first region. The ion reservoir accelerates the ions transported in from the first region in a pulsed manner and extracts the ions. A time-of-flight mass analyzer for mass separating the ions extracted from the ion reservoir is disposed in the second region, together with the ion reservoir. An isolation valve is mounted in a hole that places the first and second regions in communication with each other to permit the first and second regions to be isolated from each other.


Find Patent Forward Citations

Kobayashi, Tatsuji. (2007). Orthogonal acceleration time-of-flight mass spectrometer (U.S. Patent No. 7230234). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7230234

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