Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
Magnetic head with an electrode film including different film thicknesses
The present invention relates to a perpendicular recording magnetic head. A main magnetic pole film of a perpendicular recording element is a plated film formed on an electrode film and having a small width portion and a large width portion. The small width portion is a portion for emitting a perpendicular magnetic field from a front end thereof, while the large width portion is portion being continuous with a rear end of the small width portion and having an increased width. The electrode film is different in film thickness between beneath a portion of the plated film forming at least the front end of the small width portion and beneath a portion of the plated film forming the large width portion.
TDK Corporation
G G
G11B G11B
additional inventional
Atsushi Masashi Shingo Kiyoshi
Yamaguchi Sano Miyata Noguchi