ALEXANDRIA, Va., March 31 -- United States Patent no. 12,591,108, issued on March 31, was assigned to NIKON Corp. (Tokyo).
"Lens barrel and imaging apparatus" was invented by Takumi Nakano (Tokyo) and Takuji Hamasaki (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lens barrel includes a first lens holding frame that holds a first lens and has a first protruding portion, a first motor configured to move the first lens holding frame in an optical axis direction, a second lens holding frame that holds a second lens and has a second protruding portion, a second motor configured to move the second lens holding frame in the optical axis direction, and an outer barrel that has a straight groove engaging wit...