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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 4766039 B1

PDFFull Text
Date of Patent:
Aug. 23, 1988

Filed:

Jun. 17, 1986

Magnetic head made from amorphous magnetic film

Applicant:
Inventors:

Shigekazu Otomo, Sayama, JP;

Noriyuki Kumasaka, Ome, JP;

Noritoshi Saito, Hachioji, JP;

Takeo Yamashita, Tachikawa, JP;

Kazuo Shiiki, Kanagawa, JP;

Yoshihiro Hamakawa, Kokubunji, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:

Antonelli, Terry & Wands

Primary Examiner:

George F Lesmes

Assistant Examiner:

William M Atkinson

Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
428469 ; 360125 ; 360126 ; 428900 ;
Abstract

A magnetic head comprising a magnetic film in at least a part of a magnetic circuit, at least a part of the magnetic film being formed in contact with, or being exposed to, an oxide or oxygen at least in a heating step at 150.degree. C. or higher in a process for preparing the magnetic head is disclosed. An amorphous alloy film for the magnetic film has the following composition formula to give distinguished head characteristics without any oxidation:

Find Patent Forward Citations

Otomo, Shigekazu. (1988). Magnetic head made from amorphous magnetic film (U.S. Patent No. 4766039). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4766039

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

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