Mar 25 (Reuters) - NGK Spark Plug Co Ltd CONSOLIDATED EARNINGS ESTIMATES (in billions of yen unless specified) Full Year to Full Year to Mar 31, 2013 Mar 31, 2013 LATEST PREVIOUS FORECAST FORECAST Sales 301.50 266.20 Operating 23.00 20.40 Recurring 26.80 20.00 Net 19.20 15.10 EPS 88.21 yen 69.37 yen NOTE - NGK Spark Plug Co Ltd is a top-ranked maker of spark plugs and sensors. Spun off from NGK Insulators in 1936. For latest earnings estimates made by Toyo Keizai, please double click on.