公开(公告)号：EP0106533A3

公开(公告)日：1984-08-08

申请号：EP83305349

申请日：1983-09-13

Applicant: APPLIED MAGNETICS MAGNETIC HEAD DIVISION CORPORATION

Inventor： Schuler, Heinz

IPC: G11B05/27 ,  G11B05/58 ,  G11B05/105

CPC classification number: G11B5/58 ,  G11B5/2655

Abstract: A magnetic head assembly having a read and write magnetic transducing assembly (390) with a gap (406) for recording a track of data having a first width on a moving magnetic media (160) and an erase magnetic transducing assembly (392) located adjacent said read and write magnetic transducing assembly (390). The erase magnetic transducing assembly includes a pair of erase cores (394, 396) each having two core portions (412, 414) which each terminate in end sections positioned with one end section of each core portion adjacent each other to define an erase gap (426) and with the other end sections of each core portion terminating in end edges which are spaced from each other to define an opening therebetween. The pair of erase cores (394, 396) are positioned in spaced, substantially parallel relationship to each other with a predetermined distance therebetween which is less than said first width. The erase gaps (426) are located on each side of the recording gap to erase a portion of the edge of each recorded track of data having a first width to produce a recorded track of data on a said magnetic media having a track width substantially equal to said predetermined distance. An erase coil (424) encloses two spaced parallel aligned other end sections of one core portions (414,416) of each erase core (394, 396) with the end edges thereof extending slightly beyond the erase coil (424). A back bar (420) having a first end (430) and a second end (432 is positioned across the opening with said first end (430) contiguous each of said end edges of the two spaced parallel aligned other end sections (414, 416). The second end (432) is contiguous the other two spaced parallel aligned other end sections of the other core portion of each erase core to form a closed low reluctance path.

Abstract translation: 一种具有读写磁转换组件（390）的磁头组件，具有用于在移动磁介质（160）上记录具有第一宽度的数据轨迹的间隙（406）和位于邻近位置的擦除磁转换组件（392） 所述读写磁传感组件（390）。 擦除磁转换组件包括一对擦除芯（394,396），每一个具有两个芯部分（412,414），每个芯部分终止于端部，每个芯部分的一个端部分彼此相邻，以限定擦除间隙 并且每个芯部分的另一端部终止于彼此间隔开的端边缘，以在它们之间形成开口。 一对擦除芯（394,396）以彼此间隔开的大致平行的关系定位，其间的预定距离小于所述第一宽度。 擦除间隙（426）位于记录间隙的每一侧，以擦除具有第一宽度的每个记录的轨道的边缘的一部分，以在所述磁性介质上产生具有轨道宽度基本相等的数据记录轨迹 到所述预定距离。 擦除线圈（424）包围每个擦除芯（394,396）的一个芯部（414,416）的两个间隔开的平行排列的另一端部，其端边缘稍微延伸超过擦除线圈（424）。 具有第一端（430）和第二端（432）的后杆（420）跨越所述开口定位，所述第一端（430）邻接所述两个间隔开的平行对齐的另一端部（414）的每个所述端边缘 ，416）。 第二端（432）与每个擦除芯的另一个芯部分的另外两个间隔开的平行排列的另外的端部相邻，以形成闭合的低磁阻路径。

公开(公告)号：EP0180218A3

公开(公告)日：1987-11-25

申请号：EP85113846

申请日：1985-10-31

Applicant: SANYO ELECTRIC CO., LTD.

Inventor： Yoshisato, Yorinobu ,  Yasuda, Isao ,  Yoshikawa, Hideki ,  Kubota, Kenji ,  Taketa, Kazuhiko ,  Takahashi, Kazuhiko

IPC: G11B05/29 ,  G11B05/10 ,  G11B05/115 ,  G11B05/105 ,  G11B05/17

CPC classification number: G11B5/29 ,  G11B5/115 ,  G11B5/17 ,  Y10T29/49055 ,  Y10T29/49066

Abstract: A magnetic head which comprises a pair of head chips 25, 26 each composed of a pair of plate-like magnetic cores 2,20, (21, 22) superposed on and joined to each other with a spacer 15 interposed therebetween and having a gap G1 (G2) at the junction, a pair of base plates joined to the pair of head chips 25, 26 individually and positioned on opposite sides of and in parallel to a plane containing the gaps G1, G2, each of the magnetic core having at one end thereof a head 31 with a small width substantially equal to the width of tracks and an end portion of increased width opposite to the head, a shield member 12 interposed between the head chips 25, 26 at the head portions, a stud portion 3 provided on at least one of the pair of magnetic cores and projecting toward the other core, and a coil 4 provided around the stud portion 3. A process is also disclosed for producing such magnetic heads wherein the pair of magnetic cores are positioned close to each other, and the gaps G1 and G2 are accurately positioned on the same plane.