Millions of yen
|Thousands of U.S. dollars (Note)|
|Research and development expenses||34,250||31,911||38,443||34,064||36,501||333,156|
|R&D ratio to net sales (%)||25.5%||21.2%||29.5%||27.3%||26.3％||26.3%|
Note:U.S. dollar amounts are translated from yen, for convenience only, at the rate of \111.00=US$1, the approximate exchange rate at December 31,2018
*Due to a change in the fiscal year end from March 31 to December 31, the fiscal year 2014 is the nine-month period from April through December.