The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 2007
Filed:
Mar. 08, 2001
Kiyoshi Sato, Niigata-ken, JP;
Toshinori Watanabe, Niigata-ken, JP;
Hideki Gochou, Niigata-ken, JP;
Kiyoshi Kobayashi, Niigata-ken, JP;
Toru Takahashi, Niigata-ken, JP;
Hisayuki Yazawa, Niigata-ken, JP;
Hiromi Ikegami, Niigata-ken, JP;
BY Chiaki Ikegami, Legal Represenative, Niigata-ken, JP;
Kiyoshi Sato, Niigata-ken, JP;
Toshinori Watanabe, Niigata-ken, JP;
Hideki Gochou, Niigata-ken, JP;
Kiyoshi Kobayashi, Niigata-ken, JP;
Toru Takahashi, Niigata-ken, JP;
Hisayuki Yazawa, Niigata-ken, JP;
Hiromi Ikegami, Niigata-ken, JP;
by Chiaki Ikegami, legal represenative, Niigata-ken, JP;
Alps Electric Co., Ltd., Tokyo, JP;
Abstract
A thin-film magnetic head includes a lower core layer; a recording core formed on the lower core layer and exposed at a face surface facing a recording medium, the recording core including a gap layer, an upper pole layer, and optionally, a lower pole layer; an upper core layer magnetically coupled to the upper pole layer; and a coil. A tip surface of the upper core layer at the face surface is set back from the face surface in the height direction, and the tip surface is an inclined surface or a curved surface in which the depth gradually increases from the track width direction. A method for fabricating a thin-film magnetic head is also disclosed.