Burns, Doane, Swecker & Mathis
Magnetic recording media
 A magnetic recording medium including a nonmagnetic support having a magnetic layer on one side thereof and a backing layer on the opposite side thereof, said backing layer comprising a fatty acid having 12 or more carbon atoms and copper or copper ions. Fatty acid is saturated or unsaturated, and copper is 0.2 micron or less in size. 
Fuji Photo Film Co., Ltd.
G Y Y Y Y G Y Y
G11B Y10T Y10T Y10T Y10T G11B Y10S Y10T
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Masaaki Toshimitu Masahiro Nobuo Takahito
Fujiyama Okutu Utumi Aoki Miyoshi