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

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

Gunze Seishi K.K

Gunze Kogyo K.K

Gunze Kogyo K.K. - Yoka Plant

Mitsubishi Denki K.K. - Wakayama Kojo, Misugi Iron Works, Kano Manufactory, Matsushita Electric Ind. Co. - Juso Plant

Higuchi Seiki Kogyo K.K., Asahi Kiko Co., Asahi Kinzoku Kogyo - Osaka Kojo, Asahi Seiko K.K. - Sakai Plant

Toa Kikai Kogyo K.K. - Amagasaki Kojo

Inoue Kinzoku Kogyo K.K., Masuda Iron Works, Masui Denki K.K. - No. 1 Plant, Masuda Kinzoku Kogyo-sho

Hirose Iron Works, Hirano Bearing Mfg. Co., Minato Electric Co., Daido Kogyo Co. - Mikuni Plant

412.31: (Inventory Sheets) Gunze Kogyo K.K. Yoka Plant

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

Mitsubishi Seiki Kogyo K.K. - Seta Works

Almite Kogyo K.K. - Manzaki Plant, Almite Kogyo K.K. - Kashima Works (Restricted Concern)

Toa Iron Works Co. - Wakae Factory

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

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

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

Iwazumi Iron Works, Izumi Paper Manufacturing Co., Ltd. Kawasaki Heavy Ind. K.K. Fukai Plant, Kawasaki Works Ltd

Japan Iron & Steel Co., Ltd. Kamaishi Works

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

Taihei Kogyo K.K. (Mitsubishi Mining Co., Ltd.) (File #274)

Osaka Forging Co., Kokoku Ind. Co., Mitsubishi Mokushitsu Kogyo K.K. - Chishimacho Plant

Foundry Research Laboratory - Kubota Iron & Machinery Works Co. Ltd

Nippon Aluminum Kogyo K.K. (Mitsubishi Light Metal Mfg. Co.) - Mikuni Plant