Hikaru Katō (加藤光) was born on May 2, 1914 and he is the oldest living man in Kumamoto City, Kumamoto and second oldest living person in same city.
https://www.city.kumamoto.jp/common/UploadFileDsp.aspx?c_id=5&id=57612&sub_id=1&flid=412220
As posted elsewhere by Marco, 111-year-old Hikaru Katō (加藤光) was visited on 16 September 2025 and officially recognised as the second-oldest living man in Japan. Although he is officially a resident of Kumamoto City, Kumamoto, it seems he actually lives in a nursing home in Yamaga, Kumamoto. He can still stand up, walk, dress himself, feed himself.
http://www.supercentenariditalia.it/persone-viventi-piu-longeve-in-italia.
Persone viventi più longeve in Italia – Supercentenari d'Italia (supercentenariditalia.it)