G - Physics – 01 – H
Patent
G - Physics
01
H
G01H 11/08 (2006.01)
Patent
CA 2482043
A vibration membrane is formed by a laminate consisting of a piezoelectric film on both surfaces of which electrode coats are formed respectively and a soft sheet on both surfaces of which metal coats are formed respectively, and a weight is mounted on one of the surfaces of the vibration membrane. A pair of frame-like elements is provided to support the peripheral portion of the vibration membrane on each side by one frame-like-element. The peripheral portion of the vibration membrane is supported by the pair of frame-like elements by accommodating the vibration membrane and the frame-like elements in a casing one end of which is open and closing the open end of the casing by a board.
Ohbayashi Yoshiaki
Sugimori Yasuo
Yasuda Mamoru
Hosiden Corporation
Kirby Eades Gale Baker
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