Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1994-09-20
1996-03-26
Kiliman, Leszek
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428329, 428402, 428407, 428694B, 428694BS, 428694BB, 428694BN, 428900, B32B 516, G11B 566
Patent
active
055018963
ABSTRACT:
In the magnetic recording medium, the non-magnetic substrate has an under-coat layer including the first flake powder of non-magnetic material on its surface and further has a back-coat film including the second flake powder of non-magnetic material on the opposite face on the non-magnetic substrate to the one face coated by the magnetic film; thereby splendid property of running durability and electromagnetic transducing characteristics is achieved in spite of thinning the total thickness of the magnetic recording medium.
REFERENCES:
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patent: 4746558 (1988-03-01), Shimozawa et al.
patent: 4863793 (1989-09-01), Ogawa et al.
patent: 4910068 (1990-03-01), Takagi et al.
patent: 4963433 (1990-10-01), Ogawa et al.
patent: 5019446 (1991-05-01), Bunnell
Hatanaka Hideo
Komoda Hideaki
Ochiai Keiichi
Satake Tetsuo
Ueyama Yasuhiro
Kiliman Leszek
Matsushita Electric - Industrial Co., Ltd.
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