Invention Grant
- Patent Title: Magnetic head for perpendicular magnetic recording including a coil for individually driving a main pole and a yoke
-
Application No.: US15095750Application Date: 2016-04-11
-
Publication No.: US09620153B1Publication Date: 2017-04-11
- Inventor: Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Shigeki Tanemura , Masakazu Okada
- Applicant: Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Shigeki Tanemura , Masakazu Okada
- Applicant Address: unknown Milpitas
- Assignee: HEADWAY TECHNOLOGIES, INC.
- Current Assignee: HEADWAY TECHNOLOGIES, INC.
- Current Assignee Address: unknown Milpitas
- Agency: Oliff PLC
- Main IPC: G11B5/127
- IPC: G11B5/127 ; G11B5/39 ; G11B5/17
Abstract:
A magnetic head includes a coil, a main pole, a write shield and first and second yokes. The first and second yokes are connected to the write shield. The coil includes a main coil portion for driving the main pole, a first sub-coil portion for driving the first yoke, and a second sub-coil portion for driving the second yoke. A magnetic field produced in the main pole by the main coil portion and a magnetic field produced in each of the first and second yokes by the first and second sub-coil portions are in directions opposite to each other.
Public/Granted literature
- US2619727A Tire tread gauge Public/Granted day:1952-12-02
Information query
IPC分类:
