Millions of yen December 31, 2009 Carrying value Fair value Unrealized gain (loss) Unrealized gain: Corporate bonds............................... \102 \103 \ 0 Unrealized loss: Corporate bonds............................... . . . Total................................................................. \102 \103 \ 0 (b) Marketable securities classified as other securities as of December 31, 2010 and 2009 were summarized as follows: Millions of yen December 31, 2010 Acquisition cost Carrying value Unrealized gain (loss) Securities whose carrying value exceeds their acquisition cost: Other......................................................... \ 3,795 \ 6,967 \3,171 Securities whose acquisition cost exceeds their carrying value: Stock......................................................... 3,902 3,059 (842) Other......................................................... 9,000 9,000 . Total................................................................. \16,697 \19,026 \2,328 Thousands of U.S. dollars December 31, 2010 Acquisition cost Carrying value Unrealized gain (loss) Securities whose carrying value exceeds their acquisition cost: Stock......................................................... $ 46,576 $ 85,497 $38,920 Securities whose acquisition cost exceeds their carrying value: Stock......................................................... 47,887 37,546 (10,341) Other......................................................... 110,442 110,442 . Total................................................................. $204,907 $233,486 $28,578 Millions of yen December 31, 2009 Acquisition cost Carrying value Unrealized gain (loss) Securities whose carrying value exceeds their acquisition cost: Stock......................................................... \3,572 \ 6,882 \3,309 Securities whose acquisition cost exceeds their carrying value: Stock......................................................... 4,279 3,228 (1,051) Total................................................................. \7,852 \10,110 \2,258 (c) Sales of securities classified as other securities amounted to \108 million (U.S.$1,327 thousand) with a gain of \12 million (U.S.$155 thousand) for the year ended December 31, 2010 and \0 million with a gain of \0 million for the year ended December 31, 2009. (d) Other securities without fair value as of December 31, 2009 were as follows: Millions of yen 2009 Investments in unconsolidated subsidiaries and affiliates: ............... \2,256 Other securities: Unlisted securities................................................................................................. 1,142 Other............................................................................................................................. 383 10. Derivative Transactions (1) Derivative transactions to which hedge accounting is not applied. Not applicable. (2) Derivative transactions to which hedge accounting is applied. Derivative transactions to which the deferred hedge accounting method is applied as of December 31, 2010. Millions of yen December 31, 2010 Contract amount Contract amount over one year Fair value Special treatment for interest rate swaps: Interest rate swaps (Hedged item: Long-term debt) Receive floating and pay fixed.... \5,445 \3,326 (*) Thousands of U.S. dollars December 31, 2010 Contract amount Contract amount over one year Fair value Special treatment for interest rate swaps: Interest rate swaps (Hedged item: Long-term debt) Receive floating and pay fixed.... $66,821 $40,822 (*) (*) Because the interest rate swaps are accounted for with the long-term debt, as the hedged item, the fair value of the swaps is included in the fair value of the long-term debt. 11. Short-Term Bank Loans and Long-Term Debt Short-term bank loans, principally unsecured, consisted of notes payable to banks bearing annual interest rates of 0.78% and 0.94% at December 31, 2010 and 2009, respectively. Long-term debt at December 31, 2010 and 2009 consisted of the following: Millions of yen Thousands of U.S. dollars 2010 2009 2010 Loans with collateral from banks, insurance companies and other, bearing annual interest rates of 1.67% and 1.42% for current portion of long-term debt and lease obligations, and long-term debt and lease obligations less current portion at December 31, 2010, respectively................ \10,384 \11,181 $127,429 10,384 11,181 127,429 Less: current portion................................... (4,182) (868) (51,329) \ 6,201 \10,312 $ 76,100 Assets pledged as collateral for short-term bank loans and long-term debt at December 31, 2010 and 2009 were as follows: Millions of yen Thousands of U.S. dollars 2010 2009 2010 Property, plant and equipment at net book value....................................... \19,968 \19,672 $245,041 The aggregate annual maturities of long-term debt and lease obligations subsequent to December 31, 2011 were summarized as follows: Year ending December 31, Millions of yen Thousands of U.S. dollars 2012.................................................................................................... \ 879 $10,794 2013.................................................................................................... 3,853 47,291 2014.................................................................................................... 771 9,469 2015.................................................................................................... 468 5,747 36 Annual Report 2010