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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.:

US 5247415 B1

PDFFull Text
Date of Patent:
Sep. 21, 1993

Filed:

Nov. 24, 1992

Magnetic head having main and auxiliary magnetic paths

Applicant:
Inventors:

Noriyuki Kumasaka, Ome, JP;

Takeo Yamashita, Tachikawa, JP;

Toshio Kobayashi, Tokyo, JP;

Ryoichi Nakatani, Akigawa, JP;

Shigekazu Otomo, Sayama, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Fay, Sharpe, Beall, Fagan, Minnich & McKee

Primary Examiner:

Robert S Tupper

Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360126 ; 360119 ; 360125 ;
Abstract

A magnetic head has a main magnetic path forming film forming an operation gap, and an auxiliary magnetic path forming film for complementing said main magnetic path forming film. The auxiliary magnetic path forming film is disposed behind the gap depth of said magnetic core and magnetically coupled to the main magnetic path forming film. The main magnetic path forming film has a direction of easy magnetization perpendicular to the direction of depth of the operation gap, while the auxiliary magnetic path forming film has a direction of easy magnetization which coincides with the direction in which said magnetic head opposes the recording medium.

Find Patent Forward Citations

Kumasaka, Noriyuki. (1993). Magnetic head having main and auxiliary magnetic paths (U.S. Patent No. 5247415). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5247415

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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