ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,769,183, issued on Oct. 20, was assigned to NIDEC PRECISION Corp. (Tokyo).
"Blade open-close device" was invented by Ryosuke Ushio (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A blade open-close device includes an aperture blade having an opening on an optical axis of a lens and extending in an intersecting direction intersecting with an optical axis direction of the optical axis of the lens, a blade movable in the intersecting direction, a drive moving the blade to a closing position to cover the opening or an opening position to uncover the opening, a transmission member transmitting a driving force of the drive to the blade, a body to which ...