发明名称 |
MAGNETIC HEAD-USE SEALING GLASS, MAGNETIC HEAD AND MAGNETIC RECORDING/REPRODUCING DEVICE |
摘要 |
A high-reliability, high-performance magnetic head used in a high-density-recording-enabled magnetic recording/reproducing device and using a high-saturation-magnetic-flux-density metal magnetic film to enhance the mechanical strength of magnetic head-use sealing glass; and a magnetic recording/reproducing device using the head. Magnetic head-use sealing glass having a composition containing, in terms of oxide, 17.2- 25 wt.% of SiO2, 1-10 wt.% of B2O3, 58-75 wt.% of PbO, 0.2-7 wt.% of at least one of Al2O3 and ZnO, and 0.2-5 wt.% of at least one of Na2 and K2O; and a magnetic head and a magnetic recording/reproducing device using the sealing glass.
|
申请公布号 |
WO02072493(A1) |
申请公布日期 |
2002.09.19 |
申请号 |
WO2002JP01992 |
申请日期 |
2002.03.05 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.;HASEGAWA, SHINYA;KANAI, MIKIE;KAMIMOTO, TETSUYA;TORII, HIDEO |
发明人 |
HASEGAWA, SHINYA;KANAI, MIKIE;KAMIMOTO, TETSUYA;TORII, HIDEO |
分类号 |
C03C8/24;G11B5/10;G11B5/127;G11B5/187;G11B5/23;G11B5/31;G11B5/53;(IPC1-7):C03C8/10 |
主分类号 |
C03C8/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|