Patent ID: 9355656
Filing Date: 2016-05-31
CPC Classification: G11B

Claim Text:
1. A write transducer for use with underlayer type magnetic tape storage mediums and underlayerless type magnetic tape mediums, the write transducer comprising: a set of electric coil(s); a first yoke member; a second yoke member; and a shield member; wherein: the first yoke member, the second yoke member and the shield member are made of magnetizable material(s); the first yoke member, the second yoke member and the shield member are arranged in a row along a tape travel direction and are aligned to form a tape bearing surface; the first yoke member and the second yoke member are sized, shaped and/or located to define an inter-yoke-member gap; the second yoke member and the shield member are sized, shaped and/or located to define a shield-member gap; the first yoke member and the second yoke member are sized, shaped and/or located so that current in the set of electric coil(s) will magnetize the first and second yoke members in opposite magnetic polar orientations; and the first yoke member, the second yoke member and the shield member are sized, shaped and/or located so that, in operation: (i) magnetic transitions will be written to underlayerless type magnetic tape mediums in the vicinity of the inter-yoke-member gap but not the shield-gap, and (ii) magnetic transitions will be written to underlayer type magnetic tape mediums in the vicinity of the shield-gap.