Millions of yen
|Thousands of U.S. dollars (Note)|
|Research and development expenses||35,273||26,785||34,250||31,911||38,443||340,211|
|R&D ratio to net sales (%)||28.0%||29.3%||25.5%||21.2%||29.5%||29.5%|
Note. U.S. dollar amounts are translated from yen, for convenience only, at the rate of ¥113.00=US$1, the approximate exchange rate at December 31, 2017
*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.