TDK Corporation October 29, 2009 Contact; TDK Corporation(Tokyo) Corporate Communications Department Tatsuhiko Atsumi +81(3)5201-7102 Consolidated results (U.S. GAAP) for the 2nd quarter of FY March 2010 Summary (April 1, 2009 - September 30, 2009) Term Item Net sales Operating income Income before income taxes Net income attributable to TDK Corp. Per common share : Net income attributable to TDK Corp. / Basic Net income attributable to TDK Corp./ Diluted Capital expenditures Depreciation and amortization Research and development Result of financial income (loss) Ratio of overseas production Number of employees 1H of FY2009 (April 1, 2008 - Sep. 30, 2008) (Yen millions) % 1H of FY2010 (April 1, 2009 - Sep. 30, 2009) (Yen millions) 396,537 14,381 14,826 100.0 3.6 3.7 385,851 5,402 953 11,868 3.0 1,140 % (U.S.$ thousands) (Yen millions) Change(%) 100.0 4,287,233 -2.7 (10,686) 1.4 -62.4 60,022 (8,979) 0.2 -93.6 (13,873) 10,589 0.3 12,667 Yen 92.02 Yen 8.84 U.S.$ 0.10 Yen 91.97 Yen 8.83 U.S.$ 0.10 67,716 38,824 27,149 1,899 74.2% 65,243 9.8 6.8 - 33,141 41,128 26,975 (1,446) 77.5% 72,024 Change - 10.7 7.0 - 368,233 456,978 299,722 (16,067) - (10,728) -90.4 (34,575) 2,304 (174) (3,345) -51.1 5.9 -0.6 - 2nd quarter consolidated results (July 1, 2009 - September 30, 2009) Term Item Net sales Operating income Income before income taxes Net income attributable to TDK Corp. Per common share : Net income attributable to TDK Corp. / Basic Net income attributable to TDK Corp./ Diluted Capital expenditures Depreciation and amortization Research and development Result of financial income (loss) Ratio of overseas production 2Q of FY2009 2Q of FY2010 (July 1, 2009 - Sep. 30, 2009) (July 1, 2008 - Sep. 30, 2008) (Yen millions) % (Yen millions) 205,914 8,988 9,249 100.0 4.4 4.5 204,305 9,047 6,371 7,422 3.6 4,356 % (U.S.$ thousands) (Yen millions) Change(%) -0.8 100.0 2,270,056 (1,609) 4.4 0.7 100,522 59 3.1 -31.1 70,789 (2,878) 2.1 48,400 Yen 57.55 Yen 33.77 U.S.$ 0.38 Yen 57.51 Yen 33.74 U.S.$ 0.37 36,589 20,426 13,889 860 74.4% 9.9 6.7 - 17,981 21,162 13,731 (869) 78.1% Note: U.S.$1=Yen 90, for convenience only. 1 Change - 10.4 6.7 - 199,789 235,133 152,567 (9,656) - (3,066) -41.3 (18,608) 736 (158) (1,729) -50.9 3.6 -1.1 -