Patent · US Active

Magnetic recording head and magnetic recording apparatus

US8400734B2 · kind B2 · utility

25Cited by

61References

15Claims

0Family size

Assignee

Kabushiki Kaisha Toshiba · JP

Inventors

Kenichiro Yamada · Tokyo, JP
Hitoshi Iwasaki · Tokyo, JP
Junichi Akiyama · Kawasaki, JP
Masayuki Takagishi · Soma, JP
Tomomi Funayama · Fujisawa, JP
Masahiro Takashita · Kawasaki, JP
Mariko Shimizu · Oshima, JP
Shuichi Murakami · Kawasaki, JP
Tadashi Kai · Yokohama, JP

Key dates

Filing date	Aug 19, 2011
Grant date	Mar 19, 2013
Priority date	—
Expiry date	Aug 19, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/1186
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An example magnetic recording head includes: a main magnetic pole; a laminated body; and a pair of electrodes. The laminated body includes a first magnetic layer having a coercivity lower than magnetic field applied by the main magnetic pole, a second magnetic layer having a coercivity lower than the magnetic field applied by the main magnetic pole, and an intermediate layer provided between the first magnetic layer and the second magnetic layer. The pair of electrodes is operable to pass a current through the laminated body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.