ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,785,055, issued on Nov. 3, was assigned to SHIMADZU Corp. (Kyoto, Japan).

"Mass spectrometer and mass spectrometry method" was invented by Kazutaka Mitsui (Kyoto, Japan), Hidenori Takahashi (Kyoto, Japan) and Yuta Miyazaki (Kyoto, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mass spectrometry method in which a precursor ion is introduced into a reaction chamber (step 2), a radical is generated in a radical generation chamber, the precursor ion is irradiated with the radical to generate a product ion (step 15), and a mass of the product ion is measured (step 16) includes, when generating the radical, introducing a material gas into the radical g...