What brands does Takayuki Shibata own?

His own site names Masakage (昌景, 2008) as his first brand, Koutetsu (甲鉄, 2013) as the second, and Tsunehisa (恒久) as the third, made to keep up with orders. The business began as his sole proprietorship in 2009 and incorporated as IRONCLAD Ltd. in 2015.