He spent a year there as an assistant, and then moved to Osaka University in 1934, where he soon began working with Seishi Kikuchi.

[7] Due to an error by later researchers, the name came to be applied to block graphs as well, causing it to become ambiguous and fall into disuse.

[8] Husimi was an early member of the Science Council of Japan, joining it in 1949, and it was largely through his efforts that the Science Council in 1954 issued a statement proposing principles for the peaceful use of nuclear power and opposing the continued existence of nuclear weapons.

This statement, in turn, led to the Japanese law outlawing military uses of nuclear technology.

[1] Husimi's recreational interests included origami;[1] he designed several variations of the traditional orizuru (paper crane), folded on paper shaped as a rhombus instead of the usual square,[9] and studied the properties of the bird base that allow it to be varied within a continuous family of deformations.