Electronic key board musical instrument

- Yamaha Corporation
Description

FIG. 1 is a top, front perspective view of an electronic keyboard musical instrument showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a right side elevational view therof.

Referenced Cited
U.S. Patent Documents
D265832 August 17, 1982 Kira et al.
D289411 April 21, 1987 Bellini
D289412 April 21, 1987 Bellini
D290370 June 16, 1987 Bellini
D312265 November 20, 1990 Naito
D313033 December 18, 1990 Mizushima
4653375 March 31, 1987 Honda et al.
Foreign Patent Documents
0150620 August 1985 EPX
721750-1 August 1987 JPX
721750 August 1987 JPX
732683 January 1988 JPX
Other references
  • HFD, 8/24/87, p. 98, (Casio SK-2100). Evans Catalog, 1987-1988, p. 311, (Casio Keyboard, Item 1).
Patent History
Patent number: D320032
Type: Grant
Filed: May 23, 1989
Date of Patent: Sep 17, 1991
Assignee: Yamaha Corporation (Shizuoka)
Inventor: Yasuhiro Hoshina (Hamamatsu)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 7/355,400
Classifications