A naval aviator, he was highly regarded for his combat record in China. During Japan's early victories, he was optimistic but seemed to have no sense of the logistics required to keep the conquered possessions.As a lieutenant commander, he was naval aide to Emperor Hirohito, made one of the earliest proposals for kamikaze tactics.
- Herbert P. Bix (2001), Hirohito and the making of modern Japan, Harper Perennial, ISBN 978-0060931308, pp. 450-453
- Hiroaki Sato, Gyokusai or “Shattering like a Jewel”: Reflection on the Pacific War, The Asia-Pacific Journal: Japan Focus