5. INVESTMENT SECURITIES Investment securities at March 31, 2003 and 2002, consisted of the following: The carrying amounts and aggregate fair values of investment securities with readily determinable fair values at March 31, 2003 and 2002, were as follows: Equity securities ................................................................................................................ ¥ 1,835 ¥ 1,759 $ 15,292 Millions of Yen 2003 2002 Thousands of U.S. Dollars 2003 March 31, 2003 Available-for-sale — Equity securities ........................................ ¥ 55 ¥ 26 ¥ 10 ¥ 71 March 31, 2002 Available-for-sale — Equity securities ........................................ 45 5 3 47 Millions of Yen Unrealized Gains Unrealized Losses Fair Value Cost March 31, 2003 Available-for-sale — Equity securities ........................................ $ 458 $ 217 $ 83 $ 592 Thousands of U.S. Dollars Unrealized Gains Unrealized Losses Fair Value Cost Equity securities ................................................................................................................ ¥ 1,764 ¥ 1,712 $ 14,700 Millions of Yen 2003 2002 Thousands of U.S. Dollars 2003 Proceeds from sales of available-for-sale securities for the years ended March 31, 2003 and 2002, were ¥6 million ($50 thousand) and ¥1,184 million, respectively. Gross realized gains and losses on these sales, computed on the moving average cost basis, were ¥2 million ($17 thousand) and ¥3 million ($25 thousand), respectively, for the year ended March 31, 2003 and ¥448 million and ¥42 mil- lion, respectively, for the year ended March 31, 2002. Investments in and advances to unconsolidated subsidiaries and associated companies at March 31, 2003 and 2002, were as follows: Available-for-sale securities whose fair value is not readily deter- minable at March 31, 2003 and 2002, were as follows: 6. INVESTMENTS IN AND ADVANCES TO UNCONSOLIDATED SUBSIDIARIES AND ASSOCIATED COMPANIES Investments ...................................................................................................................... ¥ 2,371 ¥ 2,805 $ 19,759 Allowance for investment loss........................................................................................... (264) (2,200) Advances .......................................................................................................................... 1,543 2,215 12,858 Total ................................................................................................................................. ¥ 3,650 ¥ 5,020 $ 30,417 Millions of Yen 2003 2002 Thousands of U.S. Dollars 2003 35