ALEXANDRIA, Va., July 7 -- United States Patent no. 12,676,295, issued on July 7, was assigned to SHIMADZU Corp. (Kyoto, Japan).
"Gas chromatograph mass spectrometer" was invented by Shigetoshi Harada (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas chromatograph mass spectrometer includes a gas chromatograph part including a separation column, a mass spectrometer part, and a controller configured to control at least an ionization part of the mass spectrometer part. The ionization part includes an ion source box having a space for ionizing the components flowing out from an outlet of the separation column in the inside, a heater for adjusting a temperature of an ion source box, and a filame...