A theme concerning the potential impact on business performance of sales to KYOCERA CORPORATION and Mitsui Fudosan Co.,Ltd. accounting for more than 10% of consolidated net sales, and the resulting concentration of business with major customers. This also covers changes in customer composition whereby, depending on the fiscal year, 京セラ and シーアールイー cease to be major customers and only Mitsui Fudosan Co.,Ltd. accounts for more than 10%.