Financial Highlights

Millions of yen

Thousands of
U.S. dollars (Note)
　 2018.12 2019.12 2020.12 2021.12 2022.12 2022.12
Net sales ¥124,967 ¥138,982 ￥140,110 ￥142,892 ￥139,390 $1,050,415
Operating income 11,641 17,294 18,484 17,521 3,057 23,037
Net income 9,570 12,254 15,240 9,347 5,136 38,709
Research and development expenses 34,064 36,501 37,328 42,067 57,781 435,429
R&D ratio to net sales (%) 27.3% 26.3% 26.6％ 29.4% 41.4% 41.4%
Total assets ¥388,655 ¥410,000 ￥404,178 ¥412,007 ¥418,067 $3,150,471
Net assets 363,613 354,032 357,106 354,955 355,361 2,677,932
Employees 2,416 2,337 2,246 2,187 2,170 2,170

Note:U.S. dollar amounts are translated from yen, for convenience only, at the rate of \132.70=US$1, the approximate exchange rate at December 31,2022