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:
Mar. 07, 1989
Filed:
Oct. 08, 1987
Applicant:
Inventors:
Assignee:
Sanyo Electric Co. Ltd., Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B / ; G11B / ;
U.S. Cl.
CPC ...
360120 ; 360125 ; 360127 ;
Abstract
A magnetic head comprises a main core (1) made of sendust material or amorphous alloy and a pair of reinforcing cores (5,5) for holding the main core so that the main core is sandwiched between the pair of reinforcing cores. The main core (1) is comprised of a pair of core halves (1a, 1b), the pair of core halves being adhered to each other by glass material containing phosphorus pentaoxide (P.sub.2 O.sub.5) and barium oxide (BaO) as main constituent elements. P.sub.2 O.sub.5 is about 40% of the whole glass material and BaO is about 50% wt. of the whole glass material.