发明授权
- 专利标题： Ultrasonic motor
- 专利标题（中）： 超声波电机
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申请号： US841553申请日： 1992-02-26
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公开(公告)号： US5311094A公开(公告)日： 1994-05-10
- 发明人: Yoshinobu Imasaka , Hiroshi Yoneno , Masanori Sumihara
- 申请人： Yoshinobu Imasaka , Hiroshi Yoneno , Masanori Sumihara
- 申请人地址： JPX Osaka
- 专利权人： Matsushita Electric Industrial Co., Inc.
- 当前专利权人： Matsushita Electric Industrial Co., Inc.
- 当前专利权人地址： JPX Osaka
- 优先权： JPX62-262854 19871020; JPX62-266793 19871021; JPX62-284533 19871111; JPX63-27974 19880209; JPX63-75450 19880329; JPX63-141097 19880608
- 主分类号： H01L41/09
- IPC分类号： H01L41/09 ; H02N2/16 ; H01L41/08
摘要：
Provided herein is an ultrasonic motor in which at least fluorocarbon polymer is present on the contact surface of at least either of the rotor or the stator. Since the fluorocarbon polymer provides a smooth contact surface, the ultrasonic motor generates no noise and produces a stable starting torque and holding torque. In addition, it has a long life with a minimum of wear.