Government Seal of Japan

It is generally known as the 5-7 Paulownia (五七桐, Go-shichi (no) Kiri), used by those in power and is the official emblem of the Japanese government today.

After the Meiji Restoration, the seal was eventually adopted as the emblem of the Japanese government.

[3][4] It is now mainly used by the Japanese government, as a contrast to the Chrysanthemum Seal which represents the Emperor as the symbol of the sovereignty of the State, and members of the Imperial Family.

The most common one is the 5–3 Paulownia (五三桐, Go-san no Kiri), consisting of three leaves and an inflorescence of 3–5–3 flowers.

[1][2] It is found in the emblems of the Ministry of Justice, the Imperial Guard Headquarters, and the University of Tsukuba.

The 5-7 Paulownia Seal is utilized in the official emblem of the Japanese Prime Minister, the Cabinet, and the Government at large.
Kōdai-ji Maki-e Sake Ewer with Chrysanthemums and Paulownia Crests in alternating fields, early 17th century, Azuchi–Momoyama period , Metropolitan Museum of Art
Paulownia leaves and flowers