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:
Apr. 19, 2011
Filed:
Jan. 18, 2008
Shinichi Yamaguchi, Kyoto, JP;
Masaru Nishiguchi, Kyoto, JP;
Kiyoshi Ogawa, Kyoto, JP;
Yoshihiro Ueno, Kyoto, JP;
Shinichi Yamaguchi, Kyoto, JP;
Masaru Nishiguchi, Kyoto, JP;
Kiyoshi Ogawa, Kyoto, JP;
Yoshihiro Ueno, Kyoto, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A mass spectrometer is provided in which ions are favorably introduced into a loop orbit or favorably led out from the loop orbit without affecting the motion of the ions flying along the loop orbit. An ion-introduction orbitis set to correspond to the orbit (ejection orbit portion) of ions after being bent by the sector-shaped electric field Ein the loop orbit. When ions are introduced, a voltage applied to the electrode unitis put to zero to release the sector-shaped electric field E. Then the ions emitted along the ion-introduction orbitfly straight in the electrode unit. The direction and position of the ions coming out from the exit end of the electric field is the same as those ions flying along the loop orbit. Therefore, there is no need for placing a deflection electrode for introducing/leading-out ions on the loop orbit.