Many of his works have been described as antisemitic, and related to Holocaust denial.
After 11 years as a high school teacher, he established 中東問題研究センター (Chuto mondai kenkyu center; "The Middle-East Problem Research Institute") in 1975.
In 1986, he published a book named "ユダヤが解ると世界が見えてくる" (Yudaya ga wakaruto sekai ga mietekuru; "To understand Jews is to see the world clearly"), This book is based on the infamous antisemitic text The Protocols of the Learned Elders of Zion.
According to Uno, the Ashkenazim are "fake Jews", and are in charge of the world.
Uno writes that Japanese are the descendants of the Ten Lost Tribes of Israel, and so will eventually defeat "fake Jews."