The Japan Patent Office has published the list of its Principal Officers as of July 1, 2026.

Commissioner: KASAI Yasuyuki. Deputy Commissioner: YASUDA Futoshi.

Director-General, Policy Planning and Coordination Department: KAMEI Akinori. Director-General, Trademark and Customer Relations Department: MOROTA Akihiko. Director-General, Patent and Design Examination Department (Physics, Optics, Social Infrastructure and Design): KITAMURA Hiroki. Director-General, Patent Examination Department (Mechanical Technology): KOMATSU Ryuichi. Director-General, Patent Examination Department (Chemistry, Life Science and Material Science): MOROOKA Kenichi. Director-General, Patent Examination Department (Electronic Technology): NISHINA Masahiro. Director-General, Trial and Appeal Department: NONAKA Matsuo. Executive Chief Administrative Judge: MORIFUJI Atsushi.

The full roster, covering division directors of each department and the senior directors and chief administrative judges of the 1st through 38th Boards of Trial and Appeal, is available on the source page.

Source: Japan Patent Office (JPO), 1 July 2026 – https://www.jpo.go.jp/e/introduction/soshiki/kanbu.html (The source page is a full personnel roster; this article reproduces the principal posts, with the complete list available at the link.)