Title:
MAGNETIC HEAD THAT SUPPRESSES PROTRUSION OF MEDIUM FACING SURFACE CAUSED BY HEAT OF COIL
Document Type and Number:
Japanese Patent JP2010140589
Kind Code:
A
Abstract:
To suppress protrusion of a part of a medium facing surface caused by heat of a coil.
The magnetic head includes a magnetic pole layer 12, a coil 18, and a coil adjacent layer 19. The coil 18 includes a winding portion having two side surfaces. The coil adjacent layer 19 is adjacent to at least part of the whole of the two side surfaces of the winding portion. The coil adjacent portion 19 is made of a nonmagnetic material having a linear thermal expansion coefficient of ≤5×10-6/°C at a temperature of 25 to 100°C, and having a thermal conductivity of ≥40 W/m K at a temperature of 25°C.
COPYRIGHT: (C)2010,JPO&INPIT
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Inventors:
ARAKI HIRONORI
SASAKI YOSHITAKA
ITO HIROYUKI
HORINAKA TAKEHIRO
ISHIZAKI KAZUO
TANEMURA SHIGEKI
SASAKI YOSHITAKA
ITO HIROYUKI
HORINAKA TAKEHIRO
ISHIZAKI KAZUO
TANEMURA SHIGEKI
Application Number:
JP2009156549A
Publication Date:
June 24, 2010
Filing Date:
July 01, 2009
Export Citation:
Assignee:
HEADWAY TECHNOLOGIES INC
International Classes:
G11B5/31
Domestic Patent References:
| JP2008021398A | 2008-01-31 | |||
| JP2004111034A | 2004-04-08 | |||
| JP2003303405A | 2003-10-24 | |||
| JP2008021398A | 2008-01-31 |
Attorney, Agent or Firm:
Katsumi Hoshimiya
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