发明名称 |
Composite magnetic head device, information recording device reproducing device adopting the same and recording medium |
摘要 |
A composite magnetic head device includes a recording head and a reproducing head for magnetically recording and reproducing information on and from a recording medium, and further includes heat sources for heating the recording medium when recording and reproducing. As the heat sources, diffraction grating patterns for the recording head and the reproducing head are formed independently. With this structure, when recording and reproducing information based on the thermal distribution of the recording medium heated by the heat sources, the thermal damage on the recording medium can be suppressed, and the likelihood of such problem that the recording medium is heated too much and the information recorded in the heated portion are erased can be prevented.
|
申请公布号 |
US2001021076(A1) |
申请公布日期 |
2001.09.13 |
申请号 |
US20010803312 |
申请日期 |
2001.03.09 |
申请人 |
KOJIMA KUNIO;HAMAMOTO MASAKI;SATOH JUNICHI;KATAYAMA HIROYUKI |
发明人 |
KOJIMA KUNIO;HAMAMOTO MASAKI;SATOH JUNICHI;KATAYAMA HIROYUKI |
分类号 |
G11B11/10;G11B5/00;G11B5/02;G11B5/10;G11B5/105;G11B5/127;G11B5/31;G11B5/39;G11B11/105;G11B19/04;(IPC1-7):G11B5/02 |
主分类号 |
G11B11/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|