ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,300, issued on April 29, was assigned to RIVERFIELD INC. (Tokyo).
"Arm device" was invented by Daisuke Haraguchi (Tokyo), Kotaro Tadano (Tokyo) and Noriaki Kanazawa (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is an arm device. The arm device includes: a first gimbal portion configured to rotatably support an instrument about a first rotational axis extending along an axis line of the instrument; a second gimbal portion configured to rotate the instrument about a second rotational axis extending along a direction intersecting the first rotational axis; a distal portion configured to rotate the instrument about a third rotational axi...