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    • 31. 发明申请
    • MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING THAT INCLUDES A SENSOR FOR DETECTING CONTACT WITH A RECORDING MEDIUM
    • 用于磁记录的磁头包括用于用记录介质检测接触的传感器
    • US20120218663A1
    • 2012-08-30
    • US13035234
    • 2011-02-25
    • Yoshitaka SASAKIHiroyuki ITOKazuki SATOAtsushi IIJIMA
    • Yoshitaka SASAKIHiroyuki ITOKazuki SATOAtsushi IIJIMA
    • G11B5/10
    • G11B5/1278G11B5/314G11B5/315G11B5/40G11B5/607G11B5/6076
    • A magnetic head includes a main pole, a write shield, a return path section, a heater that generates heat for making part of a medium facing surface protrude, and a sensor that detects contact of the part of the medium facing surface with a recording medium. The return path section includes: a yoke layer located backward of the main pole along the direction of travel of the recording medium; a first coupling part coupling the yoke layer and the write shield to each other; and a second coupling part located away from the medium facing surface and coupling the yoke layer and the main pole to each other. The first coupling part has an end face facing toward the yoke layer. This end face includes a middle portion spaced from the yoke layer and facing the yoke layer, and two side portions located on opposite sides of the middle portion in a track width direction and in contact with the yoke layer. The sensor is located between the middle portion and the yoke layer.
    • 磁头包括主极,写屏蔽,返回路径部分,产生用于使介质面向表面的一部分突出的热量的加热器,以及传感器,其检测介质面向表面的一部分与记录介质的接触 。 返回路径部分包括:沿着记录介质的行进方向位于主极后方的轭层; 耦合所述轭层和所述写屏蔽的第一耦合部分; 以及第二联接部件,其远离所述介质面对表面并且将所述轭层和所述主极彼此耦合。 第一联接部分具有面向轭层的端面。 该端面包括与磁轭层间隔开并面对磁轭层的中间部分,以及位于轨道宽度方向上与中间部分相对侧并与磁轭层接触的两个侧部。 传感器位于中间部分和轭层之间。
    • 35. 发明申请
    • MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING
HAVING A MAIN POLE AND A SHIELD AND SPECIFICALLY STRUCTURED AND LOCATED COIL ELEMENTS AND MAGNETIC COUPLING LAYERS
    • 具有主要和屏蔽和特定结构和位置的线圈元件和磁耦合层的磁性记录磁头
    • US20120314323A1
    • 2012-12-13
    • US13156784
    • 2011-06-09
    • Yoshitaka SASAKIHiroyuki ITOKazuki SATOAtsushi IIJIMA
    • Yoshitaka SASAKIHiroyuki ITOKazuki SATOAtsushi IIJIMA
    • G11B5/17
    • G11B5/3123G11B5/1278G11B5/315
    • A magnetic head includes a coil, a main pole, a gap part, a write shield, and a return path section. The return path section includes a yoke part and first and second coupling layers. The first coupling layer is connected to the write shield. The second coupling layer magnetically couples the first coupling layer to the yoke part, and has an end face facing toward a medium facing surface and located away from the medium facing surface. The coil includes a first coil element and a plurality of second coil elements that each extend to pass through a space defined by the main pole, the gap part, the write shield, and the return path section. The first coil element is disposed with the first coupling layer interposed between the medium facing surface and the first coil element. The second coil elements are disposed with the second coupling layer interposed between the medium facing surface and the second coil elements, and with the first coil element interposed between the main pole and the second coil elements. The second coil elements are aligned perpendicularly to the medium facing surface.
    • 磁头包括线圈,主极,间隙部分,写入屏蔽和返回路径部分。 返回路径部分包括轭部分和第一和第二耦合层。 第一耦合层连接到写屏蔽。 第二耦合层将第一耦合层磁耦合到磁轭部分,并且具有面向介质面向表面并远离介质面向表面定位的端面。 线圈包括第一线圈元件和多个第二线圈元件,每个第二线圈元件各自延伸以穿过由主极,间隙部分,写入屏蔽和返回路径部分限定的空间。 第一线圈元件设置有第一耦合层介于介质面对表面和第一线圈元件之间。 第二线圈元件设置有第二耦合层介于介质相对表面和第二线圈元件之间,并且第一线圈元件插入在主极和第二线圈元件之间。 第二线圈元件垂直于面向介质的表面对准。