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 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 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
D313032 December 18, 1990 Amiya
D313033 December 18, 1990 Mizushima
D313034 December 18, 1990 Koide
D313035 December 18, 1990 Katsuhara et al.
Foreign Patent Documents
717638-1 July 1987 JPX
717638 July 1987 JPX
721749-1 August 1987 JPX
721749 August 1987 JPX
767083 April 1989 JPX
767119 April 1989 JPX
767121 April 1989 JPX
767122 April 1989 JPX
Other references
  • Music Trades, Jul. 1987, p. 105. Stereo Review, Dec. 1987, p. 59 (Keyboard at the top). Music Trades, Nov. 1988, p. 41.
Patent History
Patent number: D317319
Type: Grant
Filed: May 23, 1989
Date of Patent: Jun 4, 1991
Assignee: Yamaha Corporation (Shizuoka)
Inventor: Ikuro Mine (Hamamatsu)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 7/355,401
Classifications
Current U.S. Class: Keyboard Type (D17/1)