A name found in seals applied to many works by Tawaraya Sōtatsu 俵屋宗達 (? - 1640?) and by members of his school, both in combination with a signature and alone. The name is thought to be either Sōtatsu's artistic name, gō 号, or the name of his studio, but is unclear. On works directly attributable to Sōtatsu and his follower, Tawaraya Sōsetsu 俵屋宗雪 (active mid-17th century), the Inen seal is a large round seal in red ink. The Inen seal used by another follower, Kitagawa Sōsetsu 喜多川相説 (active mid-17th century), is a small square seal with letters that remain white against a red background. Both these sizes of seals were used by other painters working in the Sōtatsu style. One example of the use of the Inen seal on a work by Sōtatsu himself is the hanging scroll The Lotus Pond and Water Fowl, Renchi suikin-zu 蓮池水禽図 (Kyoto National Museum).