Key structure and keyboard apparatus

Details Key structure and keyboard apparatus Key structure and keyboard apparatus

2006-10-03

2009-06-02

Donels, Jeffrey (Department: 2837)

Music

Instruments

General features

C084S423001, C084S433000, C084S434000, C084S441000, C084S719000, C084S744000

Reexamination Certificate

active

07541532

ABSTRACT:
A key structure which is capable of giving a woody appearance to the key, and increasing the freedom of mounting at least one functional part formed as a separate part from the key structure, while maintaining excellent machinability. An upper plate has an increased width part corresponding to an end of a white key toward a player. In the key structure, a wood part is secured to the lower surface of at least the increased width part of the upper plate, and has an increased width part having substantially the same width as the increased width part of the upper plate. The key structure is mountable in a keyboard apparatus, for functioning as a white key pivotally moved by key-depressing operation. A recess is formed in a part of the wood part including the increased width part, which opens downward and has a width (W0) not less than 50% and not more than 80% of the width (B0) of the increased width part of the wood part.

REFERENCES:
patent: 366615 (1887-07-01), Becker
patent: 669729 (1901-03-01), Hedgeland
patent: 821533 (1906-05-01), Pekat
patent: 2482619 (1949-09-01), Howe
patent: 3026760 (1962-03-01), Fauser
patent: 3038363 (1962-06-01), Miessner
patent: 3120146 (1964-02-01), Stiles
patent: 3248992 (1966-05-01), Underwood, Jr. et al.
patent: 3254554 (1966-06-01), Nordquist
patent: 3736831 (1973-06-01), May et al.
patent: 3738216 (1973-06-01), Slaats et al.
patent: 3747465 (1973-07-01), Schutze
patent: 4476769 (1984-10-01), Kumano
patent: 4512234 (1985-04-01), Kumano
patent: 4840104 (1989-06-01), Ishida et al.
patent: 4892024 (1990-01-01), Watanabe
patent: 5036743 (1991-08-01), Yamaguchi et al.
patent: 5079985 (1992-01-01), Yamaguchi et al.
patent: 5406875 (1995-04-01), Tamai et al.
patent: 5559297 (1996-09-01), Yoshikawa et al.
patent: 5574241 (1996-11-01), Kumano et al.
patent: 5610352 (1997-03-01), Yamaguchi
patent: 5763799 (1998-06-01), Kimble
patent: 5796023 (1998-08-01), Kumano et al.
patent: 5834668 (1998-11-01), Kumano et al.
patent: 5866831 (1999-02-01), Kimble
patent: 5894099 (1999-04-01), Niitsuma
patent: 6002078 (1999-12-01), Yoshinaga et al.
patent: 6051768 (2000-04-01), Masubuchi
patent: 6133517 (2000-10-01), Masubuchi
patent: 6191351 (2001-02-01), Niitsuma
patent: 6329585 (2001-12-01), Chono
patent: 6531651 (2003-03-01), Kanemitsu et al.
patent: 6617502 (2003-09-01), Suzuki et al.
patent: 6653542 (2003-11-01), Suzuki et al.
patent: 7176370 (2007-02-01), Osuga et al.
patent: 7208668 (2007-04-01), Shimoda
patent: 7345235 (2008-03-01), Izutani et al.
patent: 2002/0194982 (2002-12-01), Suzuki et al.
patent: 2007/0022864 (2007-02-01), Osuga et al.
patent: 2008/0210079 (2008-09-01), Osuga et al.
patent: 2008/0307944 (2008-12-01), Watanabe
patent: 2009/0007756 (2009-01-01), Osuga
patent: H08-006557 (1996-01-01), None
patent: 2514485 (1996-07-01), None
patent: 2903959 (1999-03-01), None
Japanese Office Action, mailed Mar. 9, 2009, for JP2004-214199.

Affiliated with

Also associated with

Rating

Key structure and keyboard apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Key structure and keyboard apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Key structure and keyboard apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4069193