Utsubo Kubota (窪田 空穂 Kubota Utsubo; 1877–1967) was a Japanese tanka poet. He also wrote poetry in other forms, as well as prose fiction and non-fiction critical and scholarly works on Japanese classical literature. He was a lecturer at Waseda University.
Source: “Utsubo Kubota”, English Wikipedia (CC BY-SA 4.0), excerpt