ALEXANDRIA, Va., April 9 -- United States Patent no. 12,272,990, issued on April 8, was assigned to TMEIC Corp. (Chuo-ku, Japan).
"Uninterruptible power supply device" was invented by Hidetaka Ishitobi (Chuo-ku, Japan) and Tsubasa Sasaki (Chuo-ku, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An uninterruptible power supply device that includes a housing having a rectangular parallelepiped shape, a plurality of power conversion units, and a bus unit for connecting the plurality of power conversion units in parallel to each other. The plurality of power conversion units are stacked in a vertical direction and housed in the housing. The bus unit is arranged in the housing to face a rear surface of the h...