ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,821, issued on Sept. 23, was assigned to SEIKO EPSON Corp. (Tokyo).
"Method of setting factor variable area, and system" was invented by Mitsunori Kajima (Matsumoto, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of the present disclosure includes (a) retrieving from a memory a plurality of measured values of the factor variable, and a label indicating good or bad of the quality corresponding to each of the plurality of measured values, (b) dividing a factor variable space defined by the factor variable into a plurality of grids by equally dividing a range determined by a maximum value and a minimum value of the plurality of measured...