Compact keyboard apparatus with accurate detection of key...

Music – Instruments – General features

Reexamination Certificate

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Details

C084S434000, C084S745000

Reexamination Certificate

active

07060883

ABSTRACT:
A keyboard apparatus is provided with a key unit that has a plurality of keys supported for pivotal motion. Also provided is a detection section for detecting a key speed when any of the keys are pivoted. The key unit and detection section are supported by a housing having a bottom member formed of a resin. A reinforcing member having a sufficient rigidity is provided to reinforce the bottom member of the housing such as to reduce warping of the bottom member so as to reduce movement of the detection section as a result of warping of the bottom member.

REFERENCES:
patent: 2570102 (1951-10-01), Crippen, Sr.
patent: 3657459 (1972-04-01), Peterson et al.
patent: 3942403 (1976-03-01), Pramberger
patent: 3979990 (1976-09-01), Hinago
patent: 4418605 (1983-12-01), Tollefsen et al.
patent: 5107748 (1992-04-01), Muramatsu et al.
patent: 5237125 (1993-08-01), Fields
patent: 5453571 (1995-09-01), Adachi et al.
patent: 5542332 (1996-08-01), Tamai et al.
patent: 5552561 (1996-09-01), Nakada et al.
patent: 5567902 (1996-10-01), Kimble et al.
patent: 5719347 (1998-02-01), Masubuchi et al.
patent: 5824928 (1998-10-01), Kumano et al.
patent: 5841050 (1998-11-01), Clift et al.
patent: 5945617 (1999-08-01), Niitsuma
patent: 6002078 (1999-12-01), Yoshinaga et al.
patent: 6087575 (2000-07-01), Niitsuma
patent: 6121535 (2000-09-01), Muramatsu
patent: 6147290 (2000-11-01), Uno
patent: 6191351 (2001-02-01), Niitsuma
patent: 6365820 (2002-04-01), Kondo et al.
patent: 2002/0194982 (2002-12-01), Suzuki et al.
patent: 2003/0227341 (2003-12-01), Sawada
patent: 2004/0065186 (2004-04-01), Yamaguchi
patent: 09-274482 (1996-04-01), None
patent: 2002-062876 (1997-02-01), None
patent: 2003-295863 (2003-10-01), None
patent: 2004-015387 (2004-01-01), None
Published photograph of NOVATION MIDI CON product.
Documents and Photographs describing MK-425C product including User Guide.

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