US Patent Issued to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT on May 13 for "Laser welding device with changing focal position and laser welding method using same" (Japanese Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,405, issued on May 13, was assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT Co. LTD. (Osaka, Japan).

"Laser welding device with changing focal position and laser welding method using same" was invented by Jingbo Wang (Hyogo, Japan), Masatoshi Nishio (Osaka, Japan), Kenzo Shibata (Hyogo, Japan) and Manabu Nishihara (Osaka, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Laser welding device (1000) includes: laser oscillator (100); optical fiber (300) that transmits a laser beam (LB) generated in laser oscillator (100); laser beam emitting head (400) that is attached to the emission end of optical fiber (300) and emits laser beam (LB) towar...