ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,320, issued on May 26, was assigned to DAICEL COPORATION (Osaka, Japan).
"Electric circuit breaker device" was invented by Tomohide Fujiwara (Tokyo) and Katsuya Tone (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric circuit breaker device includes: a housing including an accommodating space inside; a projectile projected from a projectile accommodating portion toward an arc-extinguishing region portion side by energy received from the igniter; and a conductor piece provided at the housing and forming a portion of an electric circuit, the conductor piece including, at a portion of the conductor piece, a cutoff portion to be cut off by ...