ALEXANDRIA, Va., July 15 -- United States Patent no. 12,665,501, issued on June 23, was assigned to GS Yuasa International Ltd. (Kyoto, Japan).
"Switching power supply device" was invented by Akiteru Chiba (Kyoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a circuit element 10a, resonant circuits are arranged in parallel. A resonant capacitor Crkq of a q-th resonant circuit arranged in parallel has one end connected in series to a resonance reactor Lrq and a primary winding N1q of a transformer Trq. The resonant capacitor Crkq of the q-th resonance circuit arranged in parallel has another end connected to the resonant capacitor Crkq of a q-th one of the resonance circuit arranged in parallel in ...