The American Stock Exchange named Patricia A. Jones regional director of its new West Coast regional office in Century City. She had been with William O’Neil & Co. . . . Minnesota Mining & Manufacturing said it set June 28 as the date of the spinoff of its news data storage and imaging systems businesses as Imation. . . . Lucent Technologies said it agreed to sell its AT&T; Paradyne unit to Texas Pacific Group for $175 million.