Antonelli, Terry, Stout & Kraus
Magnetic recording medium
 Disclosed are a magnetic recording medium having a magnetic recording layer formed of a magnetic thin film in which rotational hysteresis integral R.sub.H is within a range of from 0.4 to 1.3 in the measurement by a torque magnetometer, and a continuous magnetic recording medium in which crystal grains are substantially randomly arranged on the upper surface of a magnetic recording layer or on the surface of a non-magnetic subbing layer, and in which each of the crystal grains is made to be in the form of an ellipsoid or needle and to have a length-ways axial ratio of a major axis to a minor axis not smaller than 2, more preferably, not smaller than 4. 
Hitachi, Ltd.
G G Y Y Y
G11B G01R Y10T Y10T Y10S
inventional inventional additional additional additional
Kazumasa Norikazu Sadao Hiroyuki Katsuhiro Takeo Kazuetsu Yoshibumi Yasushi Masaki Tomoyuki Yoshihiro Makoto Sadanori
Takagi Tsumita Hishiyama Suzuki Kuroda Yamashita Yoshida Matsuda Kitazaki Ohura Ohno Shiroishi Saito Nagaike