Patent ID: 11935568
Assignee: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. The device according to claim 1, wherein
the magnetic element includes
a first magnetic layer provided between the first magnetic pole and the second magnetic pole,
a second magnetic layer provided between the first magnetic layer and the second magnetic pole,
a third magnetic layer provided between the second magnetic layer and the second magnetic pole, and
a fourth magnetic layer provided between the third magnetic layer and the second magnetic pole,

a first thickness of the first magnetic layer along a first direction from the first magnetic pole to the second magnetic pole is thicker than a second thickness of the second magnetic layer along the first direction and thicker than a third thickness of the third magnetic layer along the first direction, and
a fourth thickness of the fourth magnetic layer along the first direction is thicker than the second thickness and thicker than the third thickness.