Casio Computer Co., Ltd.

Yuuki Nakajima

Kouji Oshima

Ryohei Kobayashi

Naoto Imamura

Shingo Fukushima

Mari Nakajima

A keyboard instrument includes: a case (upper case) including a back surface member having an insertion port into which a music stand is inserted, and an upper surface member having a recessed portion provided corresponding to the insertion port; and an exterior member that is disposed on an upper side of the upper surface member and covers the recessed portion.

Keyboard instrument

A keyboard musical instrument includes a musical instrument case including an upper case, and a lower case having a concave part provided on a lower surface and opened on an outer peripheral surface-side, and a strap pin fixing portion is arranged in the concave part.

Keyboard musical instrument

A switch device () includes: a cap () including, on a top surface (), a first region () and a second region () corresponding to a position where an internal light () is disposed and being thinner than the first region (); and a switch () to which the cap () is mounted.

Growing community of inventors

Akishima, Japan

Yuuki Nakajima