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热词
    • 7. 发明授权
    • Magnetic tape cartridge and recorder/reproducer a magnetic tape cartridge
    • 磁带盒和记录器/再现器一个磁带盒
    • US07295402B2
    • 2007-11-13
    • US10502608
    • 2003-01-20
    • Wataru OkawaMinoru YamagaKatsunori MaeshimaNoriyuki HiraiSatoshi Sato
    • Wataru OkawaMinoru YamagaKatsunori MaeshimaNoriyuki HiraiSatoshi Sato
    • G11B5/00
    • B82Y10/00G11B5/00813G11B5/3903G11B5/40G11B5/735G11B5/738G11B5/78G11B15/67G11B23/107G11B23/26G11B33/1493
    • A magnetic tape cartridge and A magnetic tape cartridge recording/reproducing apparatus, which can prevent a magnetic tape from being charged to avoid damage of a magnetic head while lowering the resistance of the magnetic tape and maintaining optimum electromagnetic conversion properties. A tape reel (7) is formed from a conductive material, and one end portion of a magnetic tape (6) connected to a reel hub (7B) has a surface resistivity [Ω/sq] in the order of 107 or less. In the magnetic tape (6) having a multilayer structure which comprises a magnetic layer (23), a nonmagnetic conductor layer (22), a plastic film (21), and a back coat layer (24) from the magnetic surface (6M) side, even when the surface resistivity of the magnetic layer (23) exceeds 107 Ω/sq, the magnetic layer (23) is removed and the exposed nonmagnetic conductor layer (22) is connected to the reel hub (7A), thus lowering the resistance of the magnetic tape while maintaining optimum electromagnetic conversion properties.
    • 一种磁带盒和A磁带盒记录/再现装置,其可以防止磁带被充电以避免在降低磁带的电阻的同时降低磁头的损坏并保持最佳的电磁转换特性。 磁带卷轴(7)由导电材料形成,并且连接到卷轴毂(7B)的磁带(6)的一个端部的表面电阻率(Ω/ sq)大约为10〜 7以下。 在具有多层结构的磁带(6)中,包括磁性层(23),非磁性导体层(22),塑料膜(21)和背面涂层(24) )侧,即使当磁性层(23)的表面电阻率超过10Ω/ sq时,磁性层(23)被去除并且暴露的非磁性导体层(22)连接到 卷轴毂(7A),从而降低磁带的电阻,同时保持最佳的电磁转换特性。