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:
May. 28, 1996
Filed:
Feb. 21, 1995
Yasufumi Tanaka, Kyoto, JP;
Megumi Hirooka, Uji, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A common frequency source is used for the RF voltage generators of an MS/MS type mass analyzer composed of first, second and third main quadrupole units and two pre-rod quadrupole units provided for the first and third main quadrupole units. Since there arises no discrepancy in the frequency and phase of the RF electric field between the adjacent quadrupole units, the (parent as well as daughter) ions can pass through the quadrupole units smoothly and dispersion of the ions is minimized, which improves the sensitivity of the mass analyzer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile