Electronic keyboard 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 elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D282850 March 4, 1986 Futami
D289411 April 21, 1987 Bellini
D289412 April 21, 1987 Bellini
D290370 June 16, 1987 Bellini
D312651 December 4, 1990 Yamawaki
D313033 December 18, 1990 Mizushima
D317319 June 4, 1991 Mine
4995294 February 26, 1991 Kashio et al.
Foreign Patent Documents
767121 April 1989 JPX
767122 April 1989 JPX
Other references
  • W. Bell & Co. catalog, 1987-1988, p. 21 (Casio HT-700 Keyboard). Music Trades, Apr. 1989, p. 24 (Yamaha DSR-2000 Keyboard).
Patent History
Patent number: D325213
Type: Grant
Filed: Jun 19, 1990
Date of Patent: Apr 7, 1992
Assignee: Yamaha Corporation (Shizzuokaken)
Inventor: Kazuyuki Mizushima (Hamamatsu)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 7/540,524
Classifications