Electronic keyboard musical instrument
Latest Yamaha Corporation Patents:
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
Foreign Patent Documents
Other references
D282850 | March 4, 1986 | Futami |
D289412 | April 21, 1987 | Bellini |
D290370 | June 16, 1987 | Bellini |
D312265 | November 20, 1990 | Naito |
721750-1 | August 1987 | JPX |
721750 | August 1987 | JPX |
732683 | January 1988 | JPX |
- Music Trades, Jan. 1986, p. 102 (Hohner's PK250 Keyboard). Music Trades, Feb. 1988, p. 100 (Roland's D-20 Keyboard).
Patent History
Patent number: D317774
Type: Grant
Filed: May 23, 1989
Date of Patent: Jun 25, 1991
Assignee: Yamaha Corporation (Shizuoka)
Inventor: Kazuyuki Mizushima (Hamamatsu)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 7/355,402
Type: Grant
Filed: May 23, 1989
Date of Patent: Jun 25, 1991
Assignee: Yamaha Corporation (Shizuoka)
Inventor: Kazuyuki Mizushima (Hamamatsu)
Primary Examiner: Bernard Ansher
Assistant Examiner: Adir Aronovich
Law Firm: Weingarten, Schurgin, Gagnebin & Hayes
Application Number: 7/355,402
Classifications
Current U.S. Class:
Keyboard Type (D17/1)