Hien Electric Industries
Izumi Denki
Kitazawa Denki Seisakusho
Kokosha
Morio Denki
Nippon Sento
Ohishi Electric Industry
Omron Tateishi Electronics
Sakae Senpaku Denki
San-El Electric
Sanshin Senpaku Dengu
Shinko Electric
Shonan Kosakusho
Terasaki Electric
Toshiba
Toyo Electronics
Utsunomiya Electric
Yoshida Denki Kogyo