US Patent Issued to SHIMADZU on Dec. 30 for "Method for driving linear ion trap and mass spectrometer" (Japanese Inventor)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,512,311, issued on Dec. 30, was assigned to SHIMADZU Corp. (Kyoto, Japan).

"Method for driving linear ion trap and mass spectrometer" was invented by Masaru Nishiguchi (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for driving a linear ion trap having rod electrodes arranged so as to surround a central axis includes: an ion-introducing step for introducing ions into an ion-capturing space surrounded by the rod electrodes, and for capturing the ions by a multipole RF electric field created within the ion-capturing space; and an ion-ejecting step for creating both a DC electric field for ion extraction extending from an external are...