These ancient kiln sites are located in the Atsumi Peninsula, Atsumi County, Aichi Prefecture, and date from the end of the Heian period to the Kamakura period (1192-1333). Among them, Tahara-cho Momoshi Kiln Site, Oarako Kiln Site, and Atsumi Town Kawaraba Kiln Site have been designated as historical sites by the prefecture. There are approximately 300 kiln sites in Tahara, Akabane, and Atsumi Towns, all of which are cellar kilns located on hillsides. Shida AB Sosaku, Horyu, Niimi, Gokuraku, Kurokawa, Misono, Asaba, Tsubosawa, Onchu, Oku-Onchu, Sasao, Kamada, Sakurahata, Ishidorishita, Osawashita, Gokencho, Yanagisawa, Hiruwa, Ryugahara, Hoshu, Kagochi, Oarako, Hiraiwa, Gozu, Snake, Sarayama, Sarayaki and Kawaraba kiln sites are located. A shard inscribed “Shogakushi-no-shita Sagawa-mori Kennaga” was found at the Oarako kiln site, which was dated to 1145 (Kyu-an-gen) based on calculations of Kennaga’s rank and his tenure as Mikawa governor, and is considered important as accurate data. The fact that Dojibu was given the clan name of Tadamune can be seen in the family name system, and both are regarded as valuable artifacts. Many of the jars from the Atsumi Koyo are inscribed with lotus petals, which is one of the characteristics of the kilns. The most frequently found relics of the Atsumi Kogama are: Nachi Mountain, Higashimuro County, Wakayama Prefecture; Kongoshoji Temple, Asakumadake, Ise City, Mie Prefecture; Komachi Mound, Ise City; tiles from the Great Buddha Hall of Todaiji Temple, Nara Prefecture; and religious sites in the western part of Shizuoka Prefecture. In addition, a tile sutra, a Buddhist statue (remnant), bowls, bowls, small plates, etc. have been excavated. Many of the jars seem to have been stamped in the same way as those found in Ko-Joname.
