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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 5173825 B1

PDFFull Text
Date of Patent:
Dec. 22, 1992

Filed:

Oct. 14, 1987

Magnetic head using magnetic oxide part and magnetic metal film

Applicant:
Inventors:

Takashi Suzuki, Kanagawa, JP;

Takeshi Sawada, Kanagawa, JP;

Toshio Yamanaka, Kanagawa, JP;

Tsuyoshi Orikasa, Saitama, JP;

Hiroyuki Suzuki, Kanagawa, JP;

Makoto Kameyama, Chiba, JP;

Kiyozumi Niizuma, Saitama, JP;

Assignee:

Canon Kabushiki Kaisha, Tokyo, JP;

Attorney:

Robin, Blecker, Daley & Driscoll

Primary Examiner:

David J Severin

Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360126 ; 360119 ; 360122 ;
Abstract

A magnetic head has a magnetic core comprising a first half core on which a thin magnetic metal film is deposited and a second half core which is opposed to the first half core across a magnetic gap. The film thickness of the thin magnetic metal film of the first half core continuously varies at about a constant rate within a portion thereof adjacent to the effective portion of the magnetic gap.

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Suzuki, Takashi. (1992). Magnetic head using magnetic oxide part and magnetic metal film (U.S. Patent No. 5173825). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5173825

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