发明授权
- 专利标题： Non-magnetic substrate of magnetic head
- 专利标题（中）： 磁头非磁性基板
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申请号： US805173申请日： 1991-12-11
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公开(公告)号： US5242865A公开(公告)日： 1993-09-07
- 发明人: Ryuichi Nagase , Hiroshi Hosaka , Hifumi Nagai , Ryo Suzuki
- 申请人： Ryuichi Nagase , Hiroshi Hosaka , Hifumi Nagai , Ryo Suzuki
- 申请人地址： JPX Tokyo
- 专利权人： Nippon Mining Co., Ltd.
- 当前专利权人： Nippon Mining Co., Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX2-409874 19901212; JPX3-50261 19910225; JPX3-124614 19910430; JPX3-310013 19911030; JPX3-311489 19911031
- 主分类号： C04B35/01
- IPC分类号： C04B35/01 ; G11B5/10 ; G11B5/147 ; G11B5/31
摘要：
A non-magnetic substrate for use in a magnetic head, consists of the basic composition consisting of CoO and NiO or NiO, and (a) from 0.1 to 7% by weight of ZrO.sub.2 and HfO.sub.2 based on 100% of the basic composition, or (b) from 0.1 to 7% by weight of ZrO.sub.2, and from 0.1 to 2% by weight of Al.sub.2 O.sub.3. Cracking of the magnetic-layer structure is prevented.
公开/授权文献
- US6120634A Method and apparatus for forming agricultural drip tape 公开/授权日：2000-09-19