发明授权
- 专利标题: Magnetic recording material using plate-shaped ferromagnetic particles
- 专利标题(中): 磁记录材料采用板状铁磁颗粒
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申请号: US554658申请日: 1983-11-23
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公开(公告)号: US4552808A公开(公告)日: 1985-11-12
- 发明人: Masaaki Fujiyama , Takamitsu Asai , Toshihiko Miura
- 申请人: Masaaki Fujiyama , Takamitsu Asai , Toshihiko Miura
- 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: JPX57-206521 19821125
- 主分类号: G11B5/70
- IPC分类号: G11B5/70 ; C09D5/23 ; C09D127/04 ; C09D127/06 ; C09D175/00 ; G11B5/706 ; G11B5/714 ; G11B5/73 ; G11B5/68
摘要:
A magnetic recording material is disclosed which is comprised of a single magnetic layer comprised of plate-shaped ferromagnetic particles wherein the plate-shaped ferromagnetic particles are present in greater number in the surface part of the magnetic layer than in the inner part and/or the plate-shaped ferromagnetic particles are aligned such that an average horizontal axis component of the particles with respect to the surface of magnetic layer is larger in the surface part than in the inner part. The location and alignment of the particles make is possible to increase output with short-wave recording.
公开/授权文献
- US5908346A Brassiere and garment incorporating a brassiere 公开/授权日:1999-06-01
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