"JAPAN [TK] TETSUYA KOMURO
Tetsuya's Mind Control"
Update: "the Mind Control is not a Yamaha's product. Rewrote Yamaha's MIDI board and Yamaha Electone organ 3rd keyboard were used , but production was Fernandes, not Yamaha."
Also see this site for info on the Yamaha KX series in Japanese (Googlish here).