公开(公告)号：US20170140780A1

公开(公告)日：2017-05-18

申请号：US14945004

申请日：2015-11-18

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Shigeki TANEMURA ,  Yukinori IKEGAWA ,  Kenichi TAKANO

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Shigeki TANEMURA ,  Yukinori IKEGAWA ,  Kenichi TAKANO

IPC分类号： G11B5/127 ,  G11B5/17 ,  G11B5/39

CPC分类号： G11B5/1278 ,  G11B5/115 ,  G11B5/17 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/3146 ,  G11B5/3163 ,  G11B5/3912

摘要： A magnetic head includes a coil, a main pole, a write shield, and a return path section. The coil includes a coil element located on the trailing side of the main pole. The coil element has a front end face facing toward the medium facing surface. The return path section includes a first portion, a second portion, and an intermediate film interposed between the first portion and the second portion. Part of the first portion is interposed between the medium facing surface and the front end face of the coil element. Part of the second portion is interposed between the first portion and the front end face of the coil element.

公开(公告)号：US20170125042A1

公开(公告)日：2017-05-04

申请号：US14930084

申请日：2015-11-02

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Yukinori IKEGAWA ,  Shigeki TANEMURA ,  Kenichi TAKANO

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Kazuki SATO ,  Yukinori IKEGAWA ,  Shigeki TANEMURA ,  Kenichi TAKANO

IPC分类号： G11B5/127 ,  G11B5/39

CPC分类号： G11B5/17 ,  G11B5/1278 ,  G11B5/3123

摘要： A magnetic head includes a coil, a main pole and a return path section. The return path section is located on the trailing side relative to the main pole so that a space is defined between the main pole and itself. The coil includes a first winding portion and a second winding portion connected in series. The first winding portion extends to pass through the aforementioned space, and extends once around the entire perimeter of the main pole as viewed from the medium facing surface. The second winding portion does not pass through the aforementioned space, and surrounds only a part of the entire perimeter of the main pole as viewed from the medium facing surface.

公开(公告)号：US20160343391A1

公开(公告)日：2016-11-24

申请号：US14720319

申请日：2015-05-22

申请人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Kazuki SATO ,  Hideo MAMIYA ,  Kenichi TAKANO

发明人： Yoshitaka SASAKI ,  Hiroyuki ITO ,  Shigeki TANEMURA ,  Kazuki SATO ,  Hideo MAMIYA ,  Kenichi TAKANO

IPC分类号： G11B5/31 ,  G11B5/48

CPC分类号： G11B5/315 ,  G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B11/10534 ,  G11B11/10536 ,  G11B11/10543 ,  G11B2005/0021

摘要： A thermally-assisted magnetic recording head includes a main pole, a plasmon generator, and first and second side shields. The main pole has a front end face located in the medium facing surface. The plasmon generator has a near-field light generating surface located in the medium facing surface. The front end face of the main pole includes a first end face portion, and a second end face portion greater in width than the first end face portion. The first and second side shields have first and second side shield end faces located on opposite sides of at least part of the near-field light generating surface and at least part of the first end face portion in the track width direction.

摘要翻译： 热辅助磁记录头包括主极，等离子体激元发生器以及第一和第二侧屏蔽。 主杆具有位于介质面对表面中的前端面。 等离子体发生器具有位于介质面对表面中的近场光产生表面。 主极的前端面包括第一端面部分和宽度大于第一端面部分的第二端面部分。 第一和第二侧面屏蔽具有位于近场光产生表面的至少一部分的相对侧上的第一和第二侧屏蔽端面以及轨道宽度方向上的第一端面部分的至少一部分。