US 7,550,664 B2
Keyboard apparatus
Yujiro Kamshima, Hamamatsu (Japan); Shiro Uno, Hamamatsu (Japan); and Hitoshi Sato, Hamamatsu (Japan)
Assigned to Roland Corporation, Hamamatsu (Japan)
Filed on Mar. 31, 2006, as Appl. No. 11/395,424.
Claims priority of application No. 2005-107134 (JP), filed on Apr. 04, 2005.
Prior Publication US 2006/0219085 A1, Oct. 05, 2006
Int. Cl. G10D 13/02 (2006.01)
U.S. Cl. 84—423R 13 Claims
OG exemplary drawing
 
1. A keyboard apparatus comprising white keys, wherein the white keys comprise:
a white colored resin on side surfaces of the white keys,
a specified gap left between the a top surface and a front surface, and
a grained portion colored in a wood grain pattern having a specified area;
wherein a lower surface of a front end portion of the white keys is packed with an adhesive agent that has a resin as a constituent.