US Patent Issued to TOYOTA JIDOSHA on June 3 for "Welding determination method and spot welding equipment" (Japanese Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,857, issued on June 3, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Welding determination method and spot welding equipment" was invented by Yosuke Tamada (Toyota, Japan), Kyosuke Izuno (Nisshin, Japan), Tomohiko Sekiguchi (Nagakute, Japan), Shuhei Ogura (Nagakute, Japan) and Chikaumi Sawanishi (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A welding determination method is provided, which determines whether a spot welding part is joined to an electrode without using resistance generated when separating the electrode from a workpiece. In the method, the workpiece made by laminating multiple metal sheets is clamped under pressu...