ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,379,422, issued on Aug. 5, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).
"Insulation resistance testing device and insulation resistance testing method" was invented by Shinichiro Mori (Nisshin, Japan), Naoya Hatakeyama (Toyota, Japan), Hidenori Matsutoh (Toyota, Japan), Takuro Fuchigami (Kasugai, Japan), Tsutomu Kawasaki (Toyota, Japan) and Yuki Matsui (Nagoya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "The insulation resistance testing device of the present disclosure includes a first magnetic current sensor disposed between the control unit and the ground, and a first damping resistor disposed in series with the first magnetic current...