Masuya Ido (Masuya Well) DictionaryMasuya Ido (Masuya Well) X Facebook Hatena Bookmark LINE Pinterest Copy 2024.01.17 Masuya Ido (Masuya Well) Specialty. Korean tea bowl, blue well. It was owned by Masuya, a wealthy merchant in Sakai, and entered the Mitsui Takayasu family via Toda Rogin, the Kaga Nogu family, and the Ishiguro family. (Taisho Meikikan)