Eiwa Seiko Co., Ltd.
Fuji Electric Co., Ltd.
Fuji Seimitsu Denki K.K.
Furukawa Denki K.K.
Igarashi Koka Kogyosyo
JRCS Co., Ltd.
Kobe Electric Automatic Control K.K.
Kokosha Co., Ltd.
Konan Electric Co., Ltd.
Kuwahara Denki K.K.
Meidensha Electric Mfg. Co., Ltd.
Mitsubishi Electric Corporation
Morio Denki Co., Ltd.
N.Z.K. Co. Ltd.
Nippon Battery Co., Ltd.
Nippon Siemens K.K.
Nishishiba Denki K.K.
Ohnishi Electric Co., Ltd.
Okui Electric Co., Ltd.
Rikadenki Kogyo Co., Ltd.
Saginomiya Seisakusho
Sanshin Senpaku Dengyo K.K.
Sanyo Seisakusho
Seikosha Mfg. Co., Ltd.
Shinko Electric Co., Ltd.
Shonan Kosakusho K.K.
Sohdensha Electronics Ltd.
Shodensha K.K.
Taiyo Electric Mfg. Co., Ltd.
Tamagawa Seiki Co., Ltd.
Tateishi Electric Co., Ltd.
Terasaki Electric Co., Ltd.
Togami Electric Co., Ltd.
Tokyo Hatsudoki Co., Ltd.
Tokyo Shinbaura Electric Co., Ltd.
Utsunomiya Electric Mfg. Co., Ltd.
Uzushio Electric
Woodward Governor Co., Ltd.
Yuasa Battery Co., Ltd.