发明授权
- 专利标题: Magnetic recording medium
- 专利标题(中): 磁记录介质
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申请号: US253636申请日: 1988-10-06
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公开(公告)号: US4992328A公开(公告)日: 1991-02-12
- 发明人: Mikihiko Kato , Yasushi Endo , Toshio Kawamata
- 申请人: Mikihiko Kato , Yasushi Endo , Toshio Kawamata
- 申请人地址: JPX Kanagawa
- 专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人: Fuji Photo Film Co., Ltd.
- 当前专利权人地址: JPX Kanagawa
- 优先权: JPX62-251452 19871007; JPX62-251453 19871007
- 主分类号: G11B5/706
- IPC分类号: G11B5/706 ; G11B5/708 ; G11B5/714
摘要:
A magnetic recording medium is disclosed, comprising a nonmagnetic support having thereon a magnetic layer containing ferromagnetic particles which are dispersed in a binder and have a tabular hexagonal crystal shape with an axis of easy magnetization perpendicular to the plate, wherein said ferromagnetic particles have a specific surface area of from 50 to less than 70 m.sup.2 /g, and further said magnetic layer contains abrasive agents having a Mohs' hardness of 6 or more and having an average particle diameter of from 0.3 to 1.0 .mu.m in an amount of from 7 to 15 parts by weight per 100 parts by weight of the ferromagnetic particles.
公开/授权文献
- US5534673A Electric high-voltage circuit breaker 公开/授权日:1996-07-09
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