1945
August Uozu Tekkousho K.K. purchased by Yoshida Kogyosho. Renamed Yoshida Kogyo K.K.
August Uozu Tekkousho K.K. purchased by Yoshida Kogyosho. Renamed Yoshida Kogyo K.K.
May Komatsugawa Plant burned down in the Great Tokyo Air Raids; Yoshida Kogyosho temporarily
February Yoshida Kogyosho reorganized as a limited company.
February San-es Shokai renamed Yoshida Kogyosho
January San-es Shokai founded by Tadao Yoshida in Higashi Nihonbashi, Tokyo; Click here to view a pictorial history of YKK (Japanese only).