Komatsu began an apprenticeship in Hagi in 1981. He became independent in 1989 when he built his own kiln and opened his Furaibo pottery. Two years later he built a climbing kiln in Fukui. Komatsu teabowl is a typical product of Hagi and Ken also create the traditional cut foot ring "wari kodai" . Hagi wares are the most prized of tea wares in Japan but due to the porosity of the clay and the traditional cracks of the glaze they leak and their rough foot ring can cause havoc with polished or lacquered surfaces. Hagi ware originally consists of a mixture of two raw materials: Daido clay and Mishima clay. During its firing process it change magnetic properties of the iron oxidem, and inside it happen a transformation that can contribute to the change from soft magnetism to hard magnetism. and glaze create unexpected results.