发明授权
- 专利标题： External magnetic field application device including a heat dissipation member and a metal plate for dissipating heat
- 专利标题（中）： 外部磁场施加装置包括散热构件和用于散热的金属板
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申请号： US59729申请日： 1993-05-11
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公开(公告)号： US5361242A公开(公告)日： 1994-11-01
- 发明人: Masahiko Chaya , Toru Takahashi
- 申请人： Masahiko Chaya , Toru Takahashi
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-029301 19900207; JPX2-144530 19900604; JPX2-144531 19900604; JPX3-013394 19910204
- 主分类号： G11B11/105
- IPC分类号： G11B11/105 ; G11B13/04
摘要：
Disclosed is an external magnetic field application device for use in an optical information recording and reproducing apparatus. The device has a winding wound on an outer periphery of a magnetic pole piece and a magnetic plate attached to the magnetic pole piece to form a magnetic circuit. The device includes a heat dissipation member arranged to contact an outer periphery of the winding for conducting heat generated in the winding, when the winding is energized, to the magnetic plate, and a metal plate arranged on top of the heat dissipation member for dissipating heat of the heat dissipation member.
公开/授权文献
- USD391768S Toothbrush 公开/授权日：1998-03-10
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