ALEXANDRIA, Va., July 30 -- United States Patent no. 12,374,998, issued on July 29, was assigned to Hitachi High-Tech Corp. (Tokyo).
"High-voltage control circuit" was invented by Satoshi Konishi (Tokyo), Hiroshi Toda (Tokyo), Naoya Ishigaki (Tokyo) and Kazuki Sato (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a high-voltage control circuit capable of shortening a time required for voltage bucking with a simple configuration without requiring a complicated control algorithm. A high-voltage control circuit 1 includes: a high-voltage rectifier circuit 100 configured to convert an AC voltage into a DC high voltage; a smoothing capacitor 140 configured to smooth the DC high voltage output fro...