Asahina Tekko K.K. - Okoshi Kojo

Daiwa Boseki K.K. - Izumo Kojo, Gunze Seishi K.K. - Imaichi Kojo, Hitachi Seisakusho - Yasuki Kojo, Matsue Nainenki Kogyo K.K

Kayaba Sangyo K.K., Omori Kojo

Nitto Seiko K.K. - Daini Kojo

Nippon Hassoden K.K. - Onoda Kojo

Matsushita Hikoki K.K. - Sekime Kojo

Nippon Seikosho K.K. - Hiroshima Kojo

Mitsubishi Jukogyo K.K. - Tsuruhara Kojo

Kyushu Tekko K.K., Itoshima Plant - Plant Accountability

Kyushu Tekko K.K., Nogata Plant - Plant Accountability

Nippon Hassoden K.K. - Ube Nishi Kojo

Kamitsu Kokuki K.K. Higashi & Nishi Kojo

Toa Kikai Kogyo K.K. - Amagasaki Kojo

Ishikawajima Shibaura Turbine K.K., Matsumoto Kojo

Chukyo Kikai Seisakusho K.K. - Komari Kojo

OM Boeki Seisakusho - Izumo Kojo, Shimane Kagaku Kogyo K.K. - Gotsu Kojo

Shinko Denki K.K., Yamada Kojo (File #239)

Labor Disputes - Kokusan Denki K.K., Tokyo Kojo

412.31 (Inventory Sheets) Kobe Kosakusho - Kobe Kojo, Showa Seiki Kogyo K.K. - Honsha Kojo

412.31: (Inventory Sheets) Kamitsu Koku Kogyo K.K. - Nishi Kojo

412.31: (Inventory Sheets) Kawasaki Kokuki Kogyo - K.K. Kobe Kojo

Gunze Seishi K.K. - Kurayoshi Kojo, Sendai Seishi Co., Okumura Iron Works, Tottori Kagu Kogyo K.K

Correspondence, Niigata Civil Affairs Team, Reparations - Riken Kogyo K.K. Miyauchi Kojo

Ikegai Tekko

Niigata Tekko