UPDATE 1-Japan Jan Iranian crude imports fall 29.5 pct year-on-year

(Adds sanctions, other Asian buyers' cuts) TOKYO, Feb 28 (Reuters) - Japan's crude oil imports fromIran in January fell 29.5 percent from the same month a yearago, trade ministry data showed on Thursday, in line withreductions by other Asian buyers as Western sanctions on Tehrancut shipments. Japan, the world's third-biggest oil consumer, imported1.178 million kilolitres (239,085 barrels per day