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公开(公告)号：US09218835B1
公开(公告)日：2015-12-22
申请号：US14475090
申请日：2014-09-02
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Yukinori Ikegawa , Seiichiro Tomita , Hideo Mamiya
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Yukinori Ikegawa , Seiichiro Tomita , Hideo Mamiya
CPC分类号： G11B5/4866 , G11B5/17 , G11B5/3133 , G11B5/314 , G11B5/6088 , G11B2005/001 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a main pole and a heat sink. The heat sink includes two first portions and two second portions. The two first portions are located on opposite sides of the main pole in the track width direction and are each spaced from the main pole. The two second portions are located between the main pole and the two first portions. The main pole and the two first portions are each formed of a magnetic metal. The two second portions are formed of a nonmagnetic metal.
摘要翻译： 热辅助磁记录头包括主极和散热器。 散热器包括两个第一部分和两个第二部分。 两个第一部分位于主磁极的轨道宽度方向的相对侧上，并且与主极分开。 两个第二部分位于主极和两个第一部分之间。 主极和两个第一部分各自由磁性金属形成。 两个第二部分由非磁性金属形成。
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公开(公告)号：US09754614B1
公开(公告)日：2017-09-05
申请号：US15244556
申请日：2016-08-23
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Yukinori Ikegawa , Shigeki Tanemura , Hideo Mamiya , Seiichiro Tomita
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Yukinori Ikegawa , Shigeki Tanemura , Hideo Mamiya , Seiichiro Tomita
CPC分类号： G02B6/1226 , G11B5/3133 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A plasmon generator includes: a first portion formed of a first metal material and including a front end face configured to generate near-field light; a second portion formed of a second metal material and located at a distance from the front end face; and a heat sink layer formed of a third metal material, located at a distance from the front end face and interposed between the first portion and the second portion. The second metal material is lower in Vickers hardness and higher in thermal conductivity than the first metal material. The third metal material has a thermal conductivity higher than that of each of the first and second metal materials, and has a Vickers hardness lower than that of the first metal material and higher than that of the second metal material.
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公开(公告)号：US09777387B2
公开(公告)日：2017-10-03
申请号：US14523415
申请日：2014-10-24
申请人： Yukinori Ikegawa , Yoshitaka Sasaki , Hiroyuki Ito , Hironori Araki , Seiichiro Tomita , Hideo Mamiya
发明人： Yukinori Ikegawa , Yoshitaka Sasaki , Hiroyuki Ito , Hironori Araki , Seiichiro Tomita , Hideo Mamiya
CPC分类号： C25D7/001 , C25D5/022 , G11B5/3123
摘要： A thin-film magnetic head includes a coil, a magnetic path forming section, and an insulating film. The magnetic path forming section includes first and second magnetic material portions. The coil includes first and second coil elements located between the first and second magnetic material portions. The insulating film includes an underlying portion located under the first and second coil elements. In a method of manufacturing the thin-film magnetic head, the insulating film is formed to cover the first and second magnetic material portions, and then a seed layer is formed selectively on the underlying portion of the insulating film. The coil is formed by plating using the seed layer.
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4.发明授权公开(公告)号：US09218827B1
公开(公告)日：2015-12-22
申请号：US14335528
申请日：2014-07-18
申请人： Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Hideo Mamiya , Hironori Araki , Yukinori Ikegawa
发明人： Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Hideo Mamiya , Hironori Araki , Yukinori Ikegawa
CPC分类号： G11B5/17 , G11B5/3116 , G11B5/3123 , G11B5/3146 , G11B11/24 , G11B2005/0021
摘要： A return path section includes a first yoke portion located on the front side in the direction of travel of a recording medium relative to a main pole and in contact with the top surface of the main pole. A coil includes a plurality of coil elements extending to pass between a core of a waveguide and the first yoke portion. The plurality of coil elements include a specific coil element. The main pole rides over the specific coil element.
摘要翻译： 返回路径部分包括位于记录介质相对于主极的行进方向的前侧上并与主极的顶表面接触的第一磁轭部分。 线圈包括多个线圈元件，其延伸穿过波导的芯和第一轭部之间。 多个线圈元件包括特定的线圈元件。 主杆骑在特定的线圈元件上。
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5.发明授权Thermally-assisted magnetic recording head having inclined main magnetic pole and core 有权具有倾斜主磁极和磁芯的热辅助磁记录头公开(公告)号：US09478241B1
公开(公告)日：2016-10-25
申请号：US15019428
申请日：2016-02-09
申请人： Shigeki Tanemura , Yoshitaka Sasaki , Hiroyuki Ito , Xuhui Jin , Hideo Mamiya , Yukinori Ikegawa
发明人： Shigeki Tanemura , Yoshitaka Sasaki , Hiroyuki Ito , Xuhui Jin , Hideo Mamiya , Yukinori Ikegawa
CPC分类号： G11B5/6088 , G11B5/314 , G11B11/10543 , G11B11/10554 , G11B11/1058 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a main pole, a waveguide, and a plasmon generator. The waveguide includes a core and a cladding. The main pole and the core are located on the same side in the direction of travel of a recording medium relative to the plasmon generator. The main pole has a first end face located in the medium facing surface, and a second end face opposite to the first end face. The core has a front end face opposed to the second end face of the main pole. The cladding includes an interposition section interposed between the front end face of the core and the second end face of the main pole. The front end face of the core and the second end face of the main pole are inclined with respect to the medium facing surface.
摘要翻译： 热辅助磁记录头包括主极，波导和等离子体发生器。 波导包括芯和包层。 主磁极和磁芯位于记录介质相对于等离子体发生器的行进方向的同一侧。 主极具有位于介质面对表面中的第一端面和与第一端面相对的第二端面。 芯具有与主极的第二端面相对的前端面。 包层包括插入在芯的前端面和主极的第二端面之间的插入部分。 芯的前端面和主极的第二端面相对于介质面向表面倾斜。
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公开(公告)号：US09472230B1
公开(公告)日：2016-10-18
申请号：US14691127
申请日：2015-04-20
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hideo Mamiya , Hironori Araki , Seiichiro Tomita
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hideo Mamiya , Hironori Araki , Seiichiro Tomita
IPC分类号： G11B11/00 , G11B7/1387 , G11B7/22 , G11B5/012 , G11B5/00 , G11B5/60 , G11B5/31 , G11B11/105
CPC分类号： G11B5/012 , G11B5/187 , G11B5/3116 , G11B5/314 , G11B5/6088 , G11B11/10532 , G11B11/10543 , G11B2005/0021
摘要： A plasmon generator includes a main body, and a front protrusion protruding from the main body. The front protrusion has a proximal portion which is a boundary with the main body, and a near-field light generating surface located in the medium facing surface of a magnetic head. The main body has a first inclined surface and a second inclined surface each facing toward the medium facing surface. The first inclined surface and the second inclined surface are at a distance from each other and aligned in the track width direction. The proximal portion of the front protrusion is located between the first inclined surface and the second inclined surface.
摘要翻译： 等离子体发生器包括主体和从主体突出的前突起。 前突起具有与主体边界的近侧部分和位于磁头的介质面向表面中的近场光产生表面。 主体具有第一倾斜表面和第二倾斜表面，每个倾斜表面面向介质相对表面。 第一倾斜面和第二倾斜面彼此间隔一定距离并且在轨道宽度方向上对齐。 前突起的近端部分位于第一倾斜表面和第二倾斜表面之间。
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公开(公告)号：US09659588B2
公开(公告)日：2017-05-23
申请号：US14825020
申请日：2015-08-12
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Seiichiro Tomita , Hideo Mamiya
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Seiichiro Tomita , Hideo Mamiya
CPC分类号： G11B5/4866 , G11B5/012 , G11B5/11 , G11B5/127 , G11B5/1278 , G11B5/187 , G11B5/313 , G11B5/3133 , G11B5/314 , G11B5/3163 , G11B5/60 , G11B5/6088 , G11B2005/0021
摘要： A main pole has a front end face including a first end face portion and a second end face portion. A plasmon generator has a near-field light generating surface. A surrounding layer has a first surrounding layer end face and a second surrounding layer end face located on opposite sides of the first end face portion in the track width direction. A gap film has a first gap film end face and a second gap film end face located on opposite sides of the near-field light generating surface in the track width direction. Each of the first and second gap film end faces includes a portion located between the first and second surrounding layer end faces, but does not include any portion interposed between the first surrounding layer end face and the first end face portion or between the second surrounding layer end face and the first end face portion.
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公开(公告)号：US09812156B2
公开(公告)日：2017-11-07
申请号：US14600460
申请日：2015-01-20
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hideo Mamiya , Hironori Araki , Seiichiro Tomita
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hideo Mamiya , Hironori Araki , Seiichiro Tomita
CPC分类号： G11B5/314 , G11B5/012 , G11B5/127 , G11B5/1272 , G11B5/6088 , G11B2005/0021
摘要： A thermally-assisted magnetic recording head includes a main pole and a plasmon generator. 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. The second end face portion is located farther from the near-field light generating surface than is the first end face portion, and is greater than the first end face portion in width in the track width direction. The first end face portion and the near-field light generating surface are equal in width.
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公开(公告)号：US09761253B1
公开(公告)日：2017-09-12
申请号：US15282503
申请日：2016-09-30
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Hideo Mamiya , Shigeki Tanemura , Seiichiro Tomita , Hironori Araki
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Hideo Mamiya , Shigeki Tanemura , Seiichiro Tomita , Hironori Araki
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/3163 , G11B5/3169 , G11B5/4866 , G11B5/6088 , G11B2005/0021
摘要： A main pole has a front end face including a first to a third end face portion. A plasmon generator has a near-field-light-generating surface. A surrounding layer has a first surrounding layer end face and a second surrounding layer end face. A gap film has a first gap film end face and a second gap film end face located on opposite sides of the near-field-light-generating surface in the track width direction. The first and second end face portions are interposed between the first and second surrounding layer end faces. The second end face portion is greater in width than the first end face portion. The third end face portion is greater in width than the second end face portion.
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10.发明授权Thermally-assisted magnetic recording head including a main pole, a plasmon generator and two side shields 有权热辅助磁记录头包括主极，等离子体激元发生器和两个侧面屏蔽公开(公告)号：US09542960B2
公开(公告)日：2017-01-10
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
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。
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