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81. 发明授权

US08345381B1 Magnetic head for perpendicular magnetic recording having a return path section 有权
标题翻译：具有返回路径部分的垂直磁记录用磁头
公开(公告)号：US08345381B1
公开(公告)日：2013-01-01
申请号：US13456914
申请日：2012-04-26
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Hironori Araki , Seiichiro Tomita , Kazuki Sato , Shigeki Tanemura , Tatsuya Shimizu
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Hironori Araki , Seiichiro Tomita , Kazuki Sato , Shigeki Tanemura , Tatsuya Shimizu
IPC分类号： G11B5/17 , G11B5/147
CPC分类号： G11B5/1278 , G11B5/17 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： A magnetic head includes a coil, a main pole, a shield, a return path section, and an accommodation part that are disposed above the top surface of a substrate. The accommodation part accommodates at least part of the return path section. The return path section lies between the main pole and the top surface of the substrate, and connects the shield and part of the main pole away from a medium facing surface to each other so that a space through which part of the coil passes is defined. The accommodation part includes an interposer interposed between the return path section and the medium facing surface. The interposer has an inclined surface facing toward the return path section. The return path section includes an inclined portion located between part of the coil and the inclined surface and extending along the inclined surface.
摘要翻译：磁头包括设置在基板的顶表面上方的线圈，主极，屏蔽件，返回路径部分和容纳部分。容纳部分容纳返回路径部分的至少一部分。返回路径部分位于基板的主极和顶表面之间，并且将屏蔽和主极的一部分远离介质相对表面彼此连接，从而限定线圈通过的空间。容纳部分包括插入在返回路径部分和介质面向表面之间的插入器。插入器具有朝向返回路径部分的倾斜表面。返回路径部分包括位于线圈的一部分和倾斜表面之间并沿着倾斜表面延伸的倾斜部分。

82. 发明授权

US08139447B2 Heat-assisted magnetic recording head with near-field light generating element 有权
标题翻译：具有近场光产生元件的热辅助磁记录头
公开(公告)号：US08139447B2
公开(公告)日：2012-03-20
申请号：US12385447
申请日：2009-04-08
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/6088 , G11B7/122 , G11B7/1387 , G11B2005/0005 , G11B2005/0021
摘要： A heat-assisted magnetic recording head includes a magnetic pole, a waveguide, a near-field light generating element, and a substrate on which they are stacked. The near-field light generating element and the waveguide are disposed farther from the top surface of the substrate than is the magnetic pole. The near-field light generating element has an outer surface including: a first end face located in the medium facing surface; a second end face farther from the medium facing surface; and a coupling portion coupling the first and second end faces to each other. The first end face includes a near-field light generating part. The waveguide has an outer surface including an opposed portion opposed to a part of the coupling portion. The head further includes a mirror that reflects light emitted from a light source disposed above the waveguide, so as to let the light travel through the waveguide toward the medium facing surface.
摘要翻译：热辅助磁记录头包括磁极，波导，近场光产生元件和它们堆叠在其上的衬底。近场光产生元件和波导被设置为比磁极远离衬底的顶表面。所述近场光产生元件具有外表面，所述外表面包括：位于所述介质面对表面中的第一端面; 第二端面距离介质面向表面更远; 以及将第一和第二端面彼此连接的联接部分。第一端面包括近场光产生部。波导具有包括与耦合部分的一部分相对的相对部分的外表面。头部还包括反射从布置在波导上方的光源发出的光的反射镜，以使光通过波导朝向面向介质的表面行进。

83. 发明授权

US07911883B2 Near-field light generating element having two different angles 有权
标题翻译：具有两个不同角度的近场光产生元件
公开(公告)号：US07911883B2
公开(公告)日：2011-03-22
申请号：US12457984
申请日：2009-06-26
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , G11B5/3116 , G11B5/3163 , G11B5/6088 , G11B7/1387 , G11B2005/0002 , G11B2005/0021
摘要： A near-field light generating element accommodated in a groove of an encasing layer has an outer surface that includes a first end face including a near-field light generating part, a second end face opposite to the first end face, and a coupling portion that couples the first and second end faces. The coupling portion includes a top surface, and first and second side surfaces that decrease in distance from each other with increasing distance from the top surface. The first end face includes a first side located at an end of the first side surface, and a second side located at an end of the second side surface. Each of the first and second sides includes an upper part and a lower part continuous with each other. An angle formed between the respective lower parts of the first and second sides is smaller than that formed between the respective upper parts of the first and second sides.
摘要翻译：容纳在包装层的槽中的近场光产生元件具有外表面，该外表面包括包括近场光产生部分的第一端面，与第一端面相对的第二端面和耦合部分，耦合第一和第二个端面。联接部分包括顶表面，以及随着与顶表面的距离增加而彼此间隔距离减小的第一和第二侧表面。第一端面包括位于第一侧表面的端部的第一侧和位于第二侧表面的端部的第二侧。第一和第二侧中的每一个包括彼此连续的上部和下部。在第一和第二侧的相应下部之间形成的角度小于在第一和第二侧的相应上部之间形成的角度。

84. 发明授权

US11289117B1 Magnetic head including spin torque oscillator 有权
公开(公告)号：US11289117B1
公开(公告)日：2022-03-29
申请号：US17170126
申请日：2021-02-08
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Yoji Nomura , Tetsuya Roppongi , Tetsuhito Shinohara , Ying Liu , Min Li , Alain Truong , Yuhui Tang , Wenyu Chen
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Yoji Nomura , Tetsuya Roppongi , Tetsuhito Shinohara , Ying Liu , Min Li , Alain Truong , Yuhui Tang , Wenyu Chen
IPC分类号： G11B5/23 , G11B5/115 , G11B5/39 , G11B5/00
摘要： A magnetic head includes a medium facing surface, a main pole, a trailing shield, and a spin torque oscillator. A bottom surface of the trailing shield includes a first portion that includes an end located in the medium facing surface and is in contact with the spin torque oscillator at least in part. An element height that is a dimension of the spin torque oscillator in a direction perpendicular to the medium facing surface and a writer height that is a dimension of the first portion in the direction perpendicular to the medium facing surface are different from each other.

85. 发明授权

US10872624B1 Magnetic head including a return path section 有权
公开(公告)号：US10872624B1
公开(公告)日：2020-12-22
申请号：US16655473
申请日：2019-10-17
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Yukinori Ikegawa
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Yukinori Ikegawa
IPC分类号： G11B5/17 , G11B5/127 , G11B5/31
CPC分类号： G11B5/1278 , G11B5/17 , G11B5/315 , G11B5/3116 , G11B5/3126 , G11B5/313
摘要： A magnetic head includes a coil, a main pole, a write shield, a lower return path section, and an accommodation section. The accommodation section accommodates at least part of the return path section. A first portion of the accommodation section has a first inclined surface. A second portion of the accommodation section has a second inclined surface. A coil element of the coil has a third inclined surface opposed to the first inclined surface, and a fourth inclined surface opposed to the second inclined surface. The lower return path section includes a first inclined portion extending along the first inclined surface, and a second inclined portion extending along the second inclined surface.

86. 发明授权

US10748559B1 Magnetic head including spin torque oscillator and manufacturing method for the same 有权
公开(公告)号：US10748559B1
公开(公告)日：2020-08-18
申请号：US16801399
申请日：2020-02-26
申请人： Hironori Araki , Yoshitaka Sasaki , Hiroyuki Ito , Yoji Nomura , Shigeki Tanemura , Kazuki Sato , Tetsuya Roppongi , Atsushi Yamaguchi
发明人： Hironori Araki , Yoshitaka Sasaki , Hiroyuki Ito , Yoji Nomura , Shigeki Tanemura , Kazuki Sato , Tetsuya Roppongi , Atsushi Yamaguchi
IPC分类号： G11B5/127 , G11B5/31 , G11B5/02 , G11B5/235
摘要： A magnetic head includes a main pole, a trailing shield, a spin torque oscillator, and a buffer layer. The buffer layer is interposed between the main pole and the spin torque oscillator. The spin torque oscillator has first and second side surfaces. The first and second side surfaces respectively form first and second angles with respect to a direction perpendicular to a top surface of a substrate. The first and second angles each fall within a range of 0° to 10°. The buffer layer has third and fourth side surfaces. The third side surface includes a first inclined portion forming a third angle greater than the first angle. The fourth side surface includes a second inclined portion forming a fourth angle greater than the second angle.

87. 发明授权

US10545287B1 Waveguide including first and second layers and manufacturing method thereof 有权
公开(公告)号：US10545287B1
公开(公告)日：2020-01-28
申请号：US16206058
申请日：2018-11-30
申请人： Yukinori Ikegawa , Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki
发明人： Yukinori Ikegawa , Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Hironori Araki
IPC分类号： G02B6/122 , G02B6/126 , G02B6/136 , G11B5/48 , G11B5/00
摘要： A manufacturing method for a waveguide includes forming a core including a first and a second layer. The first layer has a top surface including a first region opposed to a bottom surface of the second layer, and a second region not opposed to the bottom surface of the second layer. Forming the core includes a step of forming an initial first layer, an etching stopper layer on the second region of the top surface of the initial first layer, an initial second layer on the initial first layer and the etching stopper layer, and a step of etching the initial second layer until the etching stopper layer is exposed, to make the initial second layer into the second layer. A difference between the refractive index of the etching stopper layer and the core is smaller than or equal to 10% of the refractive index of the core.

88. 发明授权

US10134430B1 Thermally-assisted magnetic recording head including a main pole and a plasmon generator 有权
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
IPC分类号： G11B5/127 , G11B5/31 , G11B5/012 , G11B7/1387 , G11B5/60 , G11B5/00
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.

89. 发明授权

US09792929B1 Magnetic head for perpendicular magnetic recording including a coil having an inclined surface 有权
公开(公告)号：US09792929B1
公开(公告)日：2017-10-17
申请号：US15438258
申请日：2017-02-21
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Yukinori Ikegawa , Shigeki Tanemura , Hironori Araki
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Yukinori Ikegawa , Shigeki Tanemura , Hironori Araki
IPC分类号： G11B5/17 , G11B5/31
CPC分类号： G11B5/17 , G11B5/3123 , G11B5/313
摘要： A magnetic head includes a medium facing surface, a coil, a main pole, a write shield, and a first and a second return path section. The first return path section is located on the leading side of the main pole. The coil includes a specific coil element passing through a space defined by main pole, a gap section, write shield and first return path section. The main pole has a bottom end including a first portion and a second portion, the second portion being farther from medium facing surface than is the first portion. The specific coil element has a rear end farthest from medium facing surface. The distance from medium facing surface to rear end of the specific coil element is smaller than or equal to the distance from the medium facing surface to the boundary between the first portion and the second portion.

90. 发明授权

US09761253B1 Thermally-assisted magnetic recording head including a main pole and a plasmon generator 有权
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
IPC分类号： G11B5/31 , G11B5/48 , G11B5/00
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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