ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,874, issued on Sept. 15, was assigned to DENSO Corp. (Kariya-city, Japan).

"AC motor control device and tangible computer readable storage medium" was invented by Yuki Kubo (Kariya-city, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A limit range setting section sets a primary limit range from a primary lower limit phase to a primary upper limit phase within an interval from a minimum torque phase to a maximum torque phase in a voltage phase-torque map. The limit range setting section calculates a phase obtained by adding a maximum amount of offset error of a rotation angle sensor to a zero phase as a secondary upper limit phase, and calcula...