ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,743,973, issued on Sept. 22, was assigned to NTT Inc. (Tokyo).
"Pin display apparatus, pin display system" was invented by Kentaro Yasu (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "One aspect of the present invention is a pin display device 100 including a housing and a plurality of pins, the pin display device 100 being used as a pin display system 300 such that a direction in which at least gravity acts is set as a negative direction of a z direction, and a lower surface of the housing is brought into contact with or into proximity to an upper surface 200a that is one surface of a magnetic sheet 200. Each pot magnet emits a magnetic field ca...