Invention Grant
- Patent Title: Magnetic head and magnetic recording device
-
Application No.: US18336085Application Date: 2023-06-16
-
Publication No.: US12080325B2Publication Date: 2024-09-03
- Inventor: Yuji Nakagawa , Naoyuki Narita , Masayuki Takagishi , Tomoyuki Maeda , Tazumi Nagasawa
- Applicant: KABUSHIKI KAISHA TOSHIBA , TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
- Applicant Address: JP Tokyo
- Assignee: KABUSHIKI KAISHA TOSHIBA,TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
- Current Assignee: KABUSHIKI KAISHA TOSHIBA,TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
- Current Assignee Address: JP Tokyo; JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP 21089833 2021.05.28
- The original application number of the division: US17586880 2022.01.28
- Main IPC: G11B5/31
- IPC: G11B5/31 ; G11B5/127 ; G11B5/21

Abstract:
According to one embodiment, a magnetic head includes first and second magnetic poles, and a stacked body provided between the first and second magnetic poles. The stacked body includes a first magnetic layer, a second magnetic layer provided between the first magnetic layer and the second magnetic pole, a first nonmagnetic layer provided between the first and second magnetic layers, a second nonmagnetic layer provided between the second magnetic layer and the second magnetic pole, and a third nonmagnetic layer provided between the first magnetic pole and the first magnetic layer. The first magnetic layer includes a first element including at least one of Fe, Co, or Ni. The second magnetic layer includes (Fe100-xCox)100-yEy. A second element E includes at least one selected from the group consisting of Cr, V, Mn, Yi, and Sc. The first magnetic layer does not include the second element.
Public/Granted literature
- US20230335154A1 MAGNETIC HEAD AND MAGNETIC RECORDING DEVICE Public/Granted day:2023-10-19
Information query
IPC分类: