Financial Highlights

     Millions of yen

Thousands of U.S. dollars (Note)
2014.12*2015.122016.122017.122018.122018.12
Net sales ¥91,398 ¥134,309 ¥150,406 ¥130,446 ¥124,967 $1,125,834
Operating income 6,577 19,335 38,496 14,050 11,641 104,880
Net income 5,300 14,834 28,065 10,376 9,570 86,216
Research and development expenses 26,785 34,250 31,911 38,443 34,064 306,890
R&D ratio to net sales (%) 29.3% 25.5% 21.2% 29.5% 27.3% 27.3%
Total assets ¥363,405 ¥381,453 ¥398,603 ¥391,757 ¥388,655 $3,501,401
Net assets 332,507 346,176 366,311 363,835 363,613 3,275,793
Employees 2,554 2,477 2,436 2,410 2,416 2,416

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.