US Patent Issued to KYOSAN ELECTRIC on Sept. 1 for "RF band power supply device and pulse width modulation control method" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,140, issued on Sept. 1, was assigned to KYOSAN ELECTRIC MFG. Co. LTD. (Yokohama, Japan).

"RF band power supply device and pulse width modulation control method" was invented by Itsuo Yuzurihara (Yokohama, Japan), Tomohiro Yoneyama (Yokohama, Japan), Shohei Kobayashi (Yokohama, Japan) and Yu Hosoyamada (Yokohama, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pulse width modulation control according to the present invention is performed such that, when changing a modulation rate of a modulation wave, the modulation rate is continuously changed from a normal modulation region to an overmodulation region, and, the modulation rate is controlled ...