ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,566, issued on March 31, was assigned to Mitsubishi Electric Corp. (Tokyo).
"Direct current circuit breaker" was invented by Takashi Inagaki (Tokyo), Sho Tokoyoda (Tokyo) and Kenji Kamei (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A direct current circuit breaker includes a first breaking unit and a second breaking unit. The first breaking unit includes: a first circuit breaker inserted in a direct current line; and a resonance circuit unit that generates a resonance current. The first breaking unit forms a current zero point by superimposing the resonance current on a direct current flowing through the direct current line, and breaks the...