Music – Instruments – Electrical musical tone generation
Reexamination Certificate
2005-07-12
2005-07-12
Donels, Jeffrey W (Department: 2837)
Music
Instruments
Electrical musical tone generation
Reexamination Certificate
active
06916979
ABSTRACT:
Electromechanical transducer element for converting mechanical stress into electrical signals, said transducer comprising: at least one transducer elements (119,120), said element having first and second surfaces; at least one signal electrode layer (209) arranged between two transducer elements, said signal electrode layer being a metal layer arranged in direct contact with first surfaces of the two transducer film elements. Bosses may be arranged adjacent to and/or partly onto at least one electrode layer. The invention relates also to a manufacturing method where adjacent to and/or partly onto a signal electrode and/or a ground electrode a thicker layer of isolating material is deposited, or for composition of the film bosses are arranged in the signal and/or ground electrode.
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Donels Jeffrey W
Emfitech Oy
Katten Muchin Zavis & Rosenman
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