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:
May. 31, 1988
Filed:
Dec. 13, 1984
Noriyuki Kumasaka, Ome, JP;
Kazuo Shiiki, Tsukui, JP;
Shigekazu Otomo, Sayama, JP;
Yoshihiro Shiroishi, Hachioji, JP;
Takeo Yamashita, Hachioji, JP;
Noritoshi Saito, Hachioji, JP;
Kiminari Shinagawa, Chiba, JP;
Mitsuhiro Kudo, Nishitoma, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A multilayered ferromagnetic amorphous alloy film is constituted by a plurality of main ferromagnetic material alloy films of a ferromagnetic amorphous alloy laminated one upon another with a spacer ferromagnetic material layer interposed therebetween, the spacer ferromagnetic material layer being of a ferromagnetic material different from the ferromagnetic alloy. Also disclosed is a magnetic head employing the above-described multilayered film for, at least, a portion of a core thereof. The multilayered film has excellent magnetic characteristics and is easily patterned.