Finnegan, Henderson, Farabow, Garrett & Dunner
Ceramic substrate for a thin layer magnetic head
 A thin layer magnetic head comprising a ceramic substrate consisting essentially of 100 parts by weight of a ceramic material and 0.05 to 5 parts by weight of at least one compound from the group consisting of silicon oxide and iron oxide. 
Hitachi Metals, Ltd.
G Y C G C Y G
G11B Y10S C04B G11B C04B Y10T G11B
inventional additional inventional inventional inventional additional inventional
Masahiko Hirohide Yoshiharu
Sakakibara Yamada Koike