{"product_id":"p7621","title":"Kuroshuten","description":"This is a brand new black sake cup, fresh from the kiln of Tomoyuki Oiwa, who studied ceramic techniques under Ryuichi Kakurezaki and continues his research in Kamigori, Hyogo Prefecture.\u003cbr\u003e\nThis latest work was fired in February 2025.\u003cbr\u003e\n\u003cbr\u003e\nThrough Master Oiwa's intensive firing process, the black slip has achieved a vivid coloration, resulting in a glossy, clear black similar to that of his mentor, Ryuichi Kakurezaki.\u003cbr\u003e\n\u003cbr\u003e\nMaster Oiwa places particular importance on the firing time at the high-temperature range toward the end of the process, carefully firing at peak temperatures for a relatively long period to bring out a brilliant blue kiln transformation (yohen).\u003cbr\u003e\n\u003cbr\u003e\nBeautiful cobalt blue spreads across the entire outer circumference of the piece—excluding the front, the foot, and the interior—and will likely shimmer even more beautifully when holding sake.\u003cbr\u003e\n\u003cbr\u003e\nThe black slip on the foot and interior has also been fired thoroughly, transforming into a black with a luster as if it were wet.\u003cbr\u003e\n\u003cbr\u003e\nThe bold, faceted design creates fine clay ridges and grooves on the surface, and the translucent light blue kiln transformation gains delicate shading from these irregularities.\u003cbr\u003e\n\u003cbr\u003e\nThe form, which incorporates and expresses his mentor's tripod design, is intriguing, and Master Oiwa's dedication overflows from the foot to the rim.\u003cbr\u003e\n\nSigned wooden box (shiho-san)\u003cbr\u003e\nDiameter 7.4cm × 7.1cm × Height 6.7cm\u003cbr\u003e\n\nTomoyuki Oiwa was born in Kobe, Hyogo Prefecture in 1977.\u003cbr\u003e\n\u003cbr\u003e\nHe completed his studies at the Bizen Pottery Center in 2004 and apprenticed under Ryuichi Kakurezaki in 2005.\u003cbr\u003e\n\u003cbr\u003e\nHe established his own studio in Hyogo Prefecture in 2014.","brand":"大岩智之","offers":[{"title":"Default Title","offer_id":46618201784417,"sku":"7621","price":22000.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9916\/8865\/files\/7621.jpg?v=1790232996","url":"https:\/\/tourakuen.myshopify.com\/en\/products\/p7621","provider":"川口陶楽苑","version":"1.0","type":"link"}