ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,417,873, issued on Sept. 16, was assigned to KOYO GIKEN INC. (Kanagawa, Japan).
"Welding transformer" was invented by Kouji Kai (Kanagawa, Japan), Kazuki Houzan (Kanagawa, Japan), Tuyosi Shinozaki (Kanagawa, Japan) and Mitoshi Kai (Kanagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A flat, electrically and thermally conductive flat surface group is formed in the common connection region 32 of the secondary coil 13. The flat conductive surface group is directly and mechanically joined to the connecting surfaces of the first conductor plate 42, the second conductor plate 44, and the third conductor plate 46, respectively. The first conductor ...