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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：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：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：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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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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6.发明授权公开(公告)号：US09208806B2
公开(公告)日：2015-12-08
申请号：US14203018
申请日：2014-03-10
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Hideo Mamiya , Ryuji Fujii
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Hideo Mamiya , Ryuji Fujii
CPC分类号： G11B5/4866 , G02B6/1226 , G11B5/127 , G11B5/314 , G11B5/6088 , G11B2005/0021
摘要： A plasmon generator includes a first portion and a second portion. A core of a waveguide includes a main body portion and a protruding portion. The main body portion has a first surface and a second surface parallel to each other. The protruding portion lies on the first surface. A cladding of the waveguide includes a receiving-portion-forming layer lying on the first surface. At least part of the first portion of the plasmon generator is received in a receiving portion defined by the protruding portion and the receiving-portion-forming layer.
摘要翻译： 等离子体发生器包括第一部分和第二部分。 波导的芯体包括主体部分和突出部分。 主体部分具有彼此平行的第一表面和第二表面。 突出部分位于第一表面上。 波导的包层包括位于第一表面上的接收部分形成层。 等离子体发生器的第一部分的至少一部分被接收在由突出部分和接收部分形成层限定的接收部分中。
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7.发明授权公开(公告)号：US09236082B2
公开(公告)日：2016-01-12
申请号：US14069883
申请日：2013-11-01
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Hideo Mamiya , Ryuji Fujii
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki , Hideo Mamiya , Ryuji Fujii
IPC分类号： G11B5/48 , G02B6/42 , G02B6/136 , G11B9/12 , G02B6/122 , G11B5/31 , G11B7/24059 , G11B5/00 , G02B6/12
CPC分类号： G11B9/12 , G02B6/12004 , G02B6/1226 , G02B6/136 , G02B6/4291 , G11B5/3133 , G11B5/314 , G11B5/4866 , G11B5/6088 , G11B7/24059 , G11B2005/0021 , Y10T29/49
摘要： A plasmon generator includes a first portion and a second portion that are adjacent in a first direction orthogonal to the direction of travel of light propagating through a core. The second portion includes a front end face located in a medium facing surface of a magnetic head. The core has a concave portion recessed from the top surface of the core. At least part of the first portion is received in the concave portion. The concave portion has a surface including an evanescent light generating portion. The first portion includes a plasmon exciting portion opposed to the evanescent light generating portion. The evanescent light generating portion is inclined relative to a first surface.
摘要翻译： 等离子体发生器包括第一部分和第二部分，该第一部分和第二部分在与传播通过芯的光的行进方向正交的第一方向上相邻。 第二部分包括位于磁头的介质面向表面中的前端面。 芯具有从芯的顶表面凹陷的凹部。 第一部分的至少一部分被容纳在凹部中。 凹部具有包括渐逝光生成部的表面。 第一部分包括与瞬逝光产生部分相对的等离子体激元部分。 渐逝光产生部分相对于第一表面倾斜。
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公开(公告)号：US10134430B1
公开(公告)日：2018-11-20
申请号：US15707277
申请日：2017-09-18
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Hironori Araki , Shigeki Tanemura , Hideo Mamiya , Masakazu Okada
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Hironori Araki , Shigeki Tanemura , Hideo Mamiya , Masakazu Okada
摘要： A thermally-assisted magnetic recording head includes a main pole, a plasmon generator and a heat sink. The main pole includes a first narrow portion and a first wide portion. The plasmon generator includes a second narrow portion and a second wide portion. The first narrow portion has a first side surface and a second side surface. The second narrow portion has a third side surface and a fourth side surface. The heat sink includes a first portion adjacent to the first side surface and the third side surface, and a second portion adjacent to the second side surface and the fourth side surface.
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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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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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