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:
Jun. 04, 1996
Filed:
Mar. 16, 1994
Applicant:
Inventors:
Tetsuo Miwa, Nishikasugai-gun, JP;
Masatomo Yamauchi, Haguri-gun, JP;
Soichiro Matsuzawa, Kuwana, JP;
Nobuhiro Terada, Kasugai, JP;
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B / ;
U.S. Cl.
CPC ...
2960321 ; 65 42 ; 156292 ; 360103 ; 360125 ;
Abstract
A ferrite plate and a ceramic plate are joined to each other by a glass layer interposed therebetween. The ferrite plate and the ceramic plate thus joined to each other by the glass layer serve as a trailing core in the form of a composite for use in a magnetic head. Only the ferrite plate is exposed on a slidable surface to prevent the trailing core from being deformed or cracked. The trailing core has low inductance for high-density recording to prevent the magnetic head from causing recording/reading errors.