ALEXANDRIA, Va., July 7 -- United States Patent no. 12,676,549, issued on July 7, was assigned to MITSUMI ELECTRIC Co. LTD. (Tokyo).
"Direct current power supply apparatus" was invented by Hitoshi Tabuchi (Isehara, Japan), Koji Tochitani (Atsugi, Japan) and Takehito Mishima (Atsugi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A direct current power supply apparatus that converts direct current input voltage supplied from a direct current power supply and that outputs a direct current voltage at a different potential is shown. The apparatus includes a switching power supply apparatus and a current stabilizing circuit connected at a stage before or after the switching power supply apparatus. The switc...