发明授权
- 专利标题: Cobalt ferrite magnetic powder for tape recording
- 专利标题(中): 钴铁粉磁铁用于磁带录音
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申请号: US3654163D申请日: 1969-02-25
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公开(公告)号: US3654163A公开(公告)日: 1972-04-04
- 发明人: MAKINO YOSHIMI , HIGUCHI SHIGETAKA , KAMIYA IWAO , MASUYA YOSHIKAZU
- 申请人: SONY CORP
- 专利权人: Sony Corp
- 当前专利权人: Sony Corp
- 优先权: JP1217568 1968-02-27
- 主分类号: C04B35/26
- IPC分类号: C04B35/26 ; C09D5/23 ; G11B5/706 ; C04B35/32
摘要:
IMPROVED COBALT FERRITE MAGNETIC POWDERS SUITABLE FOR APPLICATION TO MAGNEIC RECORDING TECHNIQUES AND CONTAINING CONTROLLED AMOUNTS OF ZINC, MAGNESIUM, CADMIUM, OR CALCIUM, OR MIXTURES OF TWO OR MORE OF THESE METALS TO IMPROVE THE STORAGE CHARACTERISICS OF THE TAPE.
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