ALEXANDRIA, Va., June 16 -- United States Patent no. 12,660,071, issued on June 16, was assigned to SHIMADZU Corp. (Kyoto, Japan).
"X-ray fluorescence analyzer and power supply device" was invented by Yohei Ukai (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An X-ray fluorescence analyzer is provided with an X-ray tube that irradiates primary X-rays, a first power supply that supplies a filament current, a second power supply that applies a tube voltage, a first diode connected to a power line, a Zener diode connected to the ground terminal, and an operational amplifier having an inverting input terminal, and a non-inverting input terminal. The non-inverting input terminal is connected to the p...