The Gibson used by Hideto was only used to learn piano before entering X and in his own band Sabar Tiger. In the later period of Sabar Tiger, he switched to Fernandes' MG series guitar.

Hideto most often used MG120X in the early days, and the dyeing pattern on the earliest MG120X was painted by himself (Hideto is a makeup student, and he seems to be quite good at applying makeup to piano... .), later this pattern became the factory standard of MG120X. In the ten years from 1982 to 1992, in addition to the MG120X, Hideto also successively used MG115C, MG85SX and other pianos of the same shape. The difference was that he painted his own za-dye pattern on each piano.

With the addition of Heath in 1992, Fernandes Company almost completely became a sponsor of X-Japan, taking over the manufacturing of musical instruments used by each member, except of course Yoshiki's drums and pianos. During this period, Fernandes launched Hideto's signature piano series, which included the eye-catching MG360S with a red heart on a yellow background, and called it "Yellow Heart".