ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,147, issued on June 2, was assigned to MITSUI KINZOKU COMPANY Ltd. (Japan).
"Joint structure" was invented by Shinichi Yamauchi (Ageo, Japan) and Kei Anai (Ageo, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bonded structure is a structure in which two bonding target members and a bonding portion formed between and adjacent to the bonding target members are bonded together. The bonding portion is made of a material mainly containing copper. In a cross section of the bonded structure taken along a thickness direction, a ratio of a bonded rate between the bonding target members and the bonding portion in a peripheral region of the bonded struc...