Magnetic head having angled pole portions

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 7916425
APP PUB NO 20080316653A1
SERIAL NO

11812757

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A magnetic head includes: a pole layer; a nonmagnetic layer disposed on part of the top surface of the pole layer; a gap layer disposed on the pole layer and the nonmagnetic layer; and a shield disposed on the gap layer. The top surface of the pole layer includes: a first portion having a first edge located in a medium facing surface and a second edge opposite thereto; and a second portion located farther from the medium facing surface than the first portion and connected to the first portion at the second edge. The first portion is inclined with respect to a direction orthogonal to the medium facing surface so that the distance from a substrate increases with increasing distance from the medium facing surface. The nonmagnetic layer has a bottom surface touching the second portion, and this bottom surface has an edge located at the second edge.

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First Claim

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Patent Owner(s)

  • HEADWAY TECHNOLOGIES, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Araki, Hironori Milpitas, US 142 1453
Guan, Lijie Milpitas, US 94 2111
Horinaka, Takehiro Milpitas, US 30 665
Ishizaki, Kazuo Milpitas, US 46 647
Itoh, Hiroyuki Milpitas, US 215 3942
Sasaki, Yoshitaka Milpitas, US 530 5858
Tanemura, Shigeki Milpitas, US 173 1883

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