Matsushita Electric Industrial Co., Ltd.

Matsushita Electrical Industrial Co., Ltd.

Hozumi Hirota

Masaki Aoki

Hideo Torii

Yukihiro Shimasaki

Hideyuki Okinaka

Hideaki Komoda

Masayuki Sakai

Ikuo Ota

Yoshio Tawara

An iron-aluminum-silicon (Fe-Al-Si) series magnetic alloy magnetic head is described. The magnetic head is filled between front gap forming surfaces (the front gap facing a magnetic tape) of a pair of Fe-Al-Si core pieces with non-magnetic ceramic films formed on the respective front gap forming surfaces and a glass film formed therebetween, and between rear gap forming surfaces for junction with an Ag-Cu-In series alloy film.

Alloy magnetic recording head

A magnetic recording medium characterized in that a magnetic layer composed of the combination of oleic acid and ester, whereby it is better in the lubricating characteristics of the magnetic layer and in the abrasion resisting property of the magnetic layer, and superior in the durability in a wide temperature range.

Magnetic recording medium

Rare earth cobalt magnet materials, which comprised of cobalt, manganese, copper and 12 to 13 mole % of cerium and/or samarium are provided. These magnetic materials have improved magnetic characteristics, especially very high values of the maximum energy product.

Permanent magnet materials

Growing community of inventors

Kouriyama, Japan

Hozumi Hirota