Supplementary Information to Balance Sheets (Tables)

12 Months Ended

Mar. 31, 2011

Supplementary Information to Balance Sheets (Tables) [Abstract]

Summary of deferred income taxes and other current assets

					Thousands of
	Millions of yen				U.S. dollars
	2011		2010		2011
Prepaid expenses	¥	4,318	¥	3,804	$	52,024
Short-term loans receivable:
Affiliated companies		723		2,222		8,711
Other		1,427		914		17,193
Total	¥	2,150	¥	3,136	$	25,904
Deferred income taxes		55,953		43,390		674,132
Other		90,360		62,121		1,088,675
Total	¥	152,781	¥	112,451	$	1,840,735

Summary of deferred income taxes and other current liabilities

					Thousands of
	Millions of yen				U.S. dollars
	2011		2010		2011
Accrued expenses	¥	80,195	¥	82,449	$	966,205
Deferred income taxes		380		128		4,578
Other		118,693		100,747		1,430,036
Total	¥	199,268	¥	183,324	$	2,400,819