Tanaka Koku KIKI. K.K

Dai Nippon Koku Kiki K.K

Asano Koku Kogyo K.K

Yakumo Koku Kogyo K.K

Dai Nippon Koku K.K

412.31 (Inventory Sheets) Tokushu Koku Heiki K.K. - Shikama Plant, Tokushu Koku Heiki K.K. - Itami Plant, Kyowa Koku Kogyo K.K. - Miki Plant

Tanaka Koko Keiki K.K

400.170: Yamamoto Koku Buhin K.K. - Reconversion & Exemption

Kyowa Koku Kogyo K.K. (Kyowa Seisakusho) - Miki Plant

412.31: (Inventory Sheets) Nippon Kokusai Koku K.K. - Kanzaki

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

400.170: Kamitsu Koku K.K. (Higashi & Nishi Plant) Reconversion & Exemption

400.170 (Reconversion & Exemption) Nippon Kokusai Koku K.K. - Kanzaki Plant

Chikushi Industrial Co., Ltd. - Zasshonokuma Accountability; Dai Nippon Koku K.K. - Plant Accountability

Dōkanyama mushi kiki

Kumagaya Koku

Haneda Sangyo Kiki Ltd

Mitsuyasu Koku, Yono

Inu no koku

Holland (Oranda koku)

Ushi no Koku

Fuji Kiki 98-002-11

Shijūni koku jinbutsu zusetsu

Tokai Ryuan K.K. (Former Nippon Hiryo K.K.)

Tokai Ryuan K.K. (Former Nippon Hiryo K.K.)