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. 25, 1986
Filed:
Nov. 30, 1982
Hiroshi Sakakima, Osaka, JP;
Mitsuo Satomi, Osaka, JP;
Yukihiro Yanagiuchi, Osaka, JP;
Harufumi Senno, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The invention provides a magnetic head having a core which includes a thin amorphous alloy film having a composition of Co.sub.a M.sub.b T.sub.c X.sub.d, for 70.ltoreq.a.ltoreq.95, 0.ltoreq.b.ltoreq.20, 3.ltoreq.c.ltoreq.20, 0.ltoreq.d<10, and a+b+c+d=100, where M is at least one metal selected from the group consisting of Fe, Ni, Cr, Mo, W and Mn, T is at least one metal selected from the group consisting of Ti, Zr, Hf, Nb and Ta, and X is at least one material selected from the group consisting of Si, B, C, Al and Ge; and a substrate having excellent resistance to wear and having the thin amorphous alloy film on a major surface thereof, wherein the thin amorphous alloy film is located at least in a portion adjacent a magnetic gap portion of the core which slidably contacts a magnetic recording medium is made of an amorphous alloy.