US Patent Issued to ZERO LAB on Jan. 20 for "Magnetic sheet, magnetic writing system, drawing method, and erasing method" (Japanese Inventor)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,530,092, issued on Jan. 20, was assigned to ZERO LAB Co. LTD. (Tokyo).

"Magnetic sheet, magnetic writing system, drawing method, and erasing method" was invented by Ritsuo Koga (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic sheet includes a first sheet, a second sheet, and a number of microcapsules disposed between the first and the second sheets. Each microcapsule contains magnetic particles, clustered magnetic particles, non-magnetic particles, clustered non-magnetic particles, a suspending agent, and a solvent. The magnetic sheet is designed so that the magnetic particles reacting to a rotating magnetic line of force applied from a ...