TDK Corporation 1-13-1, Nihonbashi Chuo-ku, Tokyo 103-8272 Japan Contacts; TDK Corporation(Tokyo) Corporate Communications Department +81(3)5201-7102 Michinori Katayama TDK U.S.A. Corporation Francis J. Sweeney +1(516)535-2600 TDK Marketing Europe GmbH (UK Branch) Ron Matier +44(1737)773773 FOR IMMEDIATE RELEASE TOKYO - October 28, 2004 TDK Corporation today announced its Consolidated business results prepared in conformity with accounting principles generally accepted in the United States of America (the "U.S. GAAP") for the first half of fiscal year ("FY") 2005 and the 2nd quarter ("Qtr.") and Non-Consolidated business results for the first half of FY 2005. I. Consolidated I-1) Summary Consolidated results (April 1, 2004 - September 30, 2004) Term Item Net sales Operating income Income before income taxes Net income Per common share : Net income / Basic Net income / Diluted The first half of FY2005 The first half of FY2004 Change (April 1, 2003 - Sep. 30, 2003) (April 1, 2004 - Sep. 30, 2004) (Yen millions) % (U.S.$ thousands) (Yen millions) % (Yen millions) % 318,770 26,889 100.0 8.4 2,871,802 242,243 316,279 24,020 100.0 7.6 2,491 2,869 0.8 11.9 28,804 9.0 259,495 25,014 7.9 3,790 15.2 19,869 6.2 179,000 19,257 6.1 612 3.2 Yen 150.11 Yen 150.00 U.S.$ 1.35 U.S.$ 1.35 Yen 145.27 Yen 145.27 (Sales breakdown) Term Product Electronic materials and components Electronic materials Electronic devices Recording devices Semiconductors & others Recording media & systems Total sales Overseas sales The first half of FY2005 The first half of FY2004 Change (April 1, 2003 - Sep. 30, 2003) (April 1, 2004 - Sep. 30, 2004) (U.S.$ thousands) (Yen millions) (Yen millions) % % (Yen millions) % 262,364 82.3 2,363,640 254,352 80.4 8,012 3.1 91,036 57,511 103,333 28.6 18.0 32.4 820,144 518,117 930,928 82,302 52,451 111,423 26.0 16.6 35.2 8,734 5,060 (8,090) 10.6 9.6 -7.3 10,484 3.3 94,451 8,176 2.6 2,308 28.2 56,406 17.7 508,162 61,927 19.6 (5,521) -8.9 318,770 231,138 100.0 72.5 2,871,802 2,082,324 316,279 234,743 100.0 74.2 2,491 (3,605) 0.8 -1.5 Note: U.S.$1=Yen 111 1 Consolidated 2nd Qtr. Consolidated results Consolidated results (July 1, 2004 - September 30, 2004) Term Item Net sales Operating income Income before income taxes Net income Per common share : Net income / Basic Net income / Diluted The 2nd Qtr. of FY2005 The 2nd Qtr. of FY2004 Change (July 1, 2003 - Sep. 30, 2003) (July 1, 2004 - Sep. 30, 2004) (U.S.$ thousands) (Yen millions) (Yen millions) % % (Yen millions) 160,879 12,864 100.0 8.0 1,449,360 115,892 163,063 13,840 100.0 8.5 13,854 8.6 124,811 13,850 8.5 9,706 6.0 87,441 11,232 6.9 Yen 73.36 Yen 73.31 U.S.$ 0.66 U.S.$ 0.66 (2,184) (976) % -1.3 -7.1 4 (1,526) -13.6 Yen 84.76 Yen 84.76 (Sales breakdown) Term Product Electronic materials and components Electronic materials Electronic devices Recording devices Semiconductors & others Recording media & systems Total sales Overseas sales The 2nd Qtr. of FY2005 The 2nd Qtr. of FY2004 Change (July 1, 2003 - Sep. 30, 2003) (July 1, 2004 - Sep. 30, 2004) (Yen millions) % (U.S.$ thousands) (Yen millions) % (Yen millions) % 131,896 82.0 1,188,252 130,563 80.1 1,333 46,273 29,263 51,170 28.8 18.2 31.8 416,874 263,630 460,991 41,882 26,634 57,583 25.7 16.3 35.3 4,391 2,629 (6,413) 5,190 3.2 46,757 4,464 2.8 28,983 18.0 261,108 32,500 19.9 (3,517) -10.8 160,879 116,025 100.0 72.1 1,449,360 1,045,270 163,063 121,960 100.0 74.8 (2,184) (5,935) -1.3 -4.9 Note: U.S.$1=Yen 111 2 726 1.0 10.5 9.9 -11.1 16.3