Frictional material for vibration wave driven motor
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United States of America Patent
Stats
-
Jun 16, 1992
Grant Date -
N/A
app pub date -
Sep 21, 1990
filing date -
Sep 28, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vibration wave driven motor in which a vibration member and a member brought into pressure contact with the vibration member are frictionally driven relative to each other through a frictional material secured to the driving portion of one of them, characterized in that the frictional material is composed of a cermet.
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