The U.S. dollar stood firm at the upper 92 yen level Monday in Tokyo. The dollar bought 92.63-65 yen at 5 p.m., against 92.48-58 yen in New York and 92.65-66 yen in Tokyo Friday. The euro was quoted at 1.3498-3500 dollars and 125.03-07 yen, compared with 1.3405-3415 dollars and 124.03-13 yen in New York and 1.3350-3351 dollars and 123.69-73 yen in Tokyo late Friday. 