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41. 发明授权

US08509038B1 Near-field light generator and thermally-assisted magnetic recording head 有权
标题翻译：近场光发生器和热辅助磁记录头
公开(公告)号：US08509038B1
公开(公告)日：2013-08-13
申请号：US13660526
申请日：2012-10-25
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Hironori Araki , Ryuji Fujii
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Hironori Araki , Ryuji Fujii
IPC分类号： G11B11/00
CPC分类号： G11B5/314 , B82Y20/00 , G02B6/1226 , G11B5/6088 , G11B2005/0021
摘要： A near-field light generator includes a waveguide and a plasmon generator. The waveguide has a core and a cladding. The core has first and second evanescent light generating surfaces disposed such that the plasmon generator is interposed therebetween. The plasmon generator has an outer surface, the outer surface including: a front end face; a first plasmon exciting part that is opposed to the first evanescent light generating surface with a predetermined spacing therebetween; and a second plasmon exciting part that is opposed to the second evanescent light generating surface with a predetermined spacing therebetween.
摘要翻译：近场光发生器包括波导和等离子体发生器。波导具有芯和包层。芯具有第一和第二渐逝光产生表面，其设置成使等离子体发生器插入其间。所述等离子体发生器具有外表面，所述外表面包括：前端面; 第一等离子体激元部分，其与第一渐逝光产生表面相对，其间具有预定间隔; 以及与第二瞬逝光产生表面相对的第二等离子体激元部分，其间具有预定间隔。

42. 发明授权

US08477452B2 Magnetic head for perpendicular magnetic recording having a tapered main pole 有权
标题翻译：磁头用于具有锥形主极的垂直磁记录
公开(公告)号：US08477452B2
公开(公告)日：2013-07-02
申请号：US12964202
申请日：2010-12-09
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Atsushi Iijima
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Atsushi Iijima
IPC分类号： G11B5/127
CPC分类号： G11B5/3116 , G11B5/1278
摘要： A bottom end of a main pole includes first, second, and third portions that are contiguously arranged in order of increasing distance from the medium facing surface. A top surface of the main pole includes fourth, fifth, and sixth portions that are contiguously arranged in order of increasing distance from the medium facing surface. A distance from the top surface of the substrate to any given point on each of the first and second portions decreases with increasing distance from the given point to the medium facing surface. The second portion has an angle of inclination greater than that of the first portion with respect to a direction perpendicular to the medium facing surface. A distance from the top surface of the substrate to any given point on each of the fourth and fifth portions increases with increasing distance from the given point to the medium facing surface. The fifth portion has an angle of inclination greater than that of the fourth portion with respect to the direction perpendicular to the medium facing surface.
摘要翻译：主极的底端包括第一，第二和第三部分，其按照从与介质面向表面的距离增加的顺序连续排列。主极的顶表面包括第四，第五和第六部分，其顺序地依次布置成与介质面向表面的距离。从基板的顶表面到每个第一和第二部分上的任何给定点的距离随着从给定点到介质面向表面的距离的增加而减小。第二部分相对于与面向介质的表面垂直的方向具有大于第一部分的倾斜角。随着从给定点到面向介质的表面的距离的增加，从衬底的顶表面到每个第四和第五部分上的任何给定点的距离增加。第五部分相对于与面向介质的表面垂直的方向具有大于第四部分的倾斜角。

43. 发明授权

US08427781B1 Magnetic head for perpendicular magnetic recording having a main pole and a shield 有权
标题翻译：用于垂直磁记录的磁头，具有主极和屏蔽
公开(公告)号：US08427781B1
公开(公告)日：2013-04-23
申请号：US13569682
申请日：2012-08-08
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Hironori Araki , Shigeki Tanemura , Tatsuya Shimizu
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Hironori Araki , Shigeki Tanemura , Tatsuya Shimizu
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315
摘要： A magnetic head with a main pole is provided. The main pole has a bottom end including an inclined portion. A write shield has a first inclined surface opposed to the inclined portion and a second inclined surface that is located farther from a medium facing surface than is the first inclined surface. The first inclined surface has a first end located in the medium facing surface and a second end opposite thereto. The second inclined surface has a third end connected to the second end and a fourth end opposite thereto. The second inclined surface forms a greater angle than does the first inclined surface relative to a direction perpendicular to the medium facing surface. The distance between the main pole and an arbitrary point on the second inclined surface increases with decreasing distance between the arbitrary point and the fourth end.
摘要翻译：提供具有主极的磁头。主极具有包括倾斜部分的底端。写屏蔽具有与倾斜部相对的第一倾斜表面和位于比第一倾斜表面更远离介质相对表面的第二倾斜表面。第一倾斜表面具有位于介质面向表面中的第一端和与其相对的第二端。第二倾斜表面具有连接到第二端的第三端和与其相对的第四端。第二倾斜面相对于与面向介质的表面垂直的方向形成比第一倾斜面更大的角度。主极与第二倾斜面上的任意点之间的距离随着任意点与第四端之间的距离的减小而增加。

44. 发明授权

US08422166B1 Magnetic head for perpendicular magnetic recording having a main pole and a shield 有权
标题翻译：用于垂直磁记录的磁头，具有主极和屏蔽
公开(公告)号：US08422166B1
公开(公告)日：2013-04-16
申请号：US13571024
申请日：2012-08-09
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Tatsuya Shimizu
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Tatsuya Shimizu
IPC分类号： G11B5/147
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3146 , G11B5/315 , G11B5/3163
摘要： A magnetic head includes a coil, a main pole, a write shield, and a return path section. The return path section is located forward of the main pole in a direction of travel of a recording medium to thereby define a space. The coil includes a first coil element and second coil elements extending to pass through the space. The second coil elements are located forward of the first coil element in the direction of travel of the recording medium. The return path section includes a first portion located such that the first coil element is interposed between the first portion and the medium facing surface, and a second portion located such that the second coil elements are interposed between the second portion and the medium facing surface.
摘要翻译：磁头包括线圈，主极，写入屏蔽和返回路径部分。返回路径部分在记录介质的行进方向上位于主极的前方，从而限定空间。线圈包括第一线圈元件和延伸穿过该空间的第二线圈元件。第二线圈元件沿着记录介质的行进方向位于第一线圈元件的前方。返回路径部分包括第一部分，该第一部分被定位成使得第一线圈元件插入在第一部分和介质面向表面之间，第二部分被定位成使得第二线圈元件插入在第二部分和介质面向表面之间。

45. 发明授权

US08345384B1 Magnetic head for perpendicular magnetic recording having a main pole and a shield 有权
标题翻译：用于垂直磁记录的磁头，具有主极和屏蔽
公开(公告)号：US08345384B1
公开(公告)日：2013-01-01
申请号：US13310192
申请日：2011-12-02
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Atsushi Iijima
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Atsushi Iijima
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/17 , G11B5/3116 , G11B5/315 , G11B5/3163
摘要： A main pole has a top surface and a bottom end that each include first, second, and third portions arranged contiguously in this order of increasing distance from a medium facing surface. A first virtual plane and a second virtual plane are assumed. The first virtual plane passes through an end of an end face of the main pole located forward in the direction of travel of a recording medium and is perpendicular to the medium facing surface and to the direction of travel of the recording medium. The second virtual plane passes through an end of the end face of the main pole located backward in the direction of travel of the recording medium and is perpendicular to the medium facing surface and to the direction of travel of the recording medium. The first and third portions are inclined relative to the first and second virtual planes and the medium facing surface. The second portion is parallel to the first and second virtual planes.
摘要翻译：主极具有顶表面和底端，每个包括第一，第二和第三部分，其以与介质相对表面的距离增加的顺序连续布置。假设第一虚拟平面和第二虚拟平面。第一虚拟平面通过位于记录介质的行进方向前方的主极端面的端部并且垂直于介质面向表面和记录介质的行进方向。第二虚拟平面通过位于记录介质的行进方向后方的主极端面的端部并且垂直于介质面向表面和记录介质的行进方向。第一和第三部分相对于第一和第二虚拟平面和介质面向表面倾斜。第二部分平行于第一和第二虚拟平面。

46. 发明授权

US10366712B1 Magnetic head for perpendicular magnetic recording including two side shields configured to enable a reduction in width of an end face of the main pole located in a medium facing surface and an increase in cross-sectional area of the main pole in the vicinity of the medium facing surface 有权
公开(公告)号：US10366712B1
公开(公告)日：2019-07-30
申请号：US15880458
申请日：2018-01-25
申请人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Hironori Araki , Yukinori Ikegawa , Yoji Nomura
发明人： Yoshitaka Sasaki , Hiroyuki Ito , Kazuki Sato , Hironori Araki , Yukinori Ikegawa , Yoji Nomura
IPC分类号： G11B5/11 , G11B5/127 , G11B5/31 , G11B5/60
摘要： A first side shield has a first sidewall and a second sidewall, and a second side shield has a third sidewall and a fourth sidewall. The first to fourth sidewalls have first to fourth edges, respectively, that are farthest from a top surface of a substrate. The distance between a rear end of the first edge and a rear end of the third edge in a track width direction is greater than the distance between a front end of the first edge and a front end of the third edge in the track width direction. The distance between the second edge and the fourth edge in the track width direction increases with increasing distance from the medium facing surface.

47. 发明授权

US08287748B2 Method of manufacturing magnetic head for perpendicular magnetic recording 有权
标题翻译：用于垂直磁记录的磁头制造方法
公开(公告)号：US08287748B2
公开(公告)日：2012-10-16
申请号：US12654548
申请日：2009-12-23
申请人： Hironori Araki , Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Jianing Zhou , Min Li
发明人： Hironori Araki , Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Jianing Zhou , Min Li
IPC分类号： B44C1/22
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163
摘要： A magnetic head includes: a pole layer including a track width defining portion and a wide portion; and an accommodation layer disposed on a bottom forming layer and having a groove that accommodates the pole layer. The groove includes a first portion for accommodating at least part of the track width defining portion, and a second portion for accommodating at least part of the wide portion. A manufacturing method for the magnetic head includes the steps of: forming a groove defining layer on a nonmagnetic layer that is intended to later become the accommodation layer; forming a mask that covers an area of the nonmagnetic layer where to form the first portion of the groove; etching the nonmagnetic layer so that the second portion of the groove is formed in the nonmagnetic layer; removing the mask; and taper-etching the nonmagnetic layer so that the first portion of the groove is formed in the nonmagnetic layer and the groove is thereby completed.
摘要翻译：磁头包括：包括轨道宽度限定部分和宽部分的极层; 以及容纳层，其设置在底部形成层上并具有容纳极层的槽。凹槽包括用于容纳轨道宽度限定部分的至少一部分的第一部分和用于容纳至少部分宽部分的第二部分。磁头的制造方法包括以下步骤：在旨在稍后成为调节层的非磁性层上形成凹槽限定层; 形成覆盖形成所述槽的第一部分的非磁性层的区域的掩模; 蚀刻非磁性层，使得凹槽的第二部分形成在非磁性层中; 去除面膜; 并且对非磁性层进行锥形蚀刻，使得凹槽的第一部分形成在非磁性层中，从而完成凹槽。

48. 发明申请

US20110147343A1 Method of manufacturing magnetic head for perpendicular magnetic recording 有权
标题翻译：用于垂直磁记录的磁头制造方法
公开(公告)号：US20110147343A1
公开(公告)日：2011-06-23
申请号：US12654548
申请日：2009-12-23
申请人： Hironori Araki , Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Jianing Zhou , Min Li
发明人： Hironori Araki , Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Jianing Zhou , Min Li
IPC分类号： G11B5/127
CPC分类号： G11B5/1278 , G11B5/3116 , G11B5/3163
摘要： A magnetic head includes: a pole layer including a track width defining portion and a wide portion; and an accommodation layer disposed on a bottom forming layer and having a groove that accommodates the pole layer. The groove includes a first portion for accommodating at least part of the track width defining portion, and a second portion for accommodating at least part of the wide portion. A manufacturing method for the magnetic head includes the steps of; forming a groove defining layer on a nonmagnetic layer that is intended to later become the accommodation layer; forming a mask that covers an area of the nonmagnetic layer where to form the first portion of the groove; etching the nonmagnetic layer so that the second portion of the groove is formed in the nonmagnetic layer; removing the mask; and taper-etching the nonmagnetic layer so that the first portion of the groove is formed in the nonmagnetic layer and the groove is thereby completed.
摘要翻译：磁头包括：包括轨道宽度限定部分和宽部分的极层; 以及容纳层，其设置在底部形成层上并具有容纳极层的槽。凹槽包括用于容纳轨道宽度限定部分的至少一部分的第一部分和用于容纳至少部分宽部分的第二部分。磁头的制造方法包括以下步骤：在非磁性层上形成凹槽限定层，所述非磁性层旨在稍后成为所述容纳层; 形成覆盖形成所述槽的第一部分的非磁性层的区域的掩模; 蚀刻非磁性层，使得凹槽的第二部分形成在非磁性层中; 去除面膜; 并且对非磁性层进行锥形蚀刻，使得凹槽的第一部分形成在非磁性层中，从而完成凹槽。

49. 发明授权

US09489969B1 Magnetic head including a main pole and a write shield to provide improved write characteristics without compromising the function of the write shield 有权
标题翻译：磁头包括主极和写屏蔽，以提供改进的写入特性，而不会影响写入屏蔽的功能
公开(公告)号：US09489969B1
公开(公告)日：2016-11-08
申请号：US14925365
申请日：2015-10-28
申请人： Yukinori Ikegawa , Yoshitaka Sasaki , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Seiichiro Tomita
发明人： Yukinori Ikegawa , Yoshitaka Sasaki , Kazuki Sato , Shigeki Tanemura , Hironori Araki , Seiichiro Tomita
IPC分类号： G11B5/31 , G11B5/147 , G11B5/265
CPC分类号： G11B5/315 , G11B5/1278 , G11B5/23 , G11B5/3116 , G11B5/3163 , G11B5/3169
摘要： A magnetic head includes a main pole, a write shield and a gap section. The write shield includes a leading shield having a top surface opposed to a bottom end of the main pole. The gap section includes a leading gap section for separating the leading shield from the bottom end of the main pole. The leading gap section is formed using a first nonmagnetic layer and a second nonmagnetic layer. The first nonmagnetic layer has a first front end located closest to but at a distance from the medium facing surface. The second nonmagnetic layer has a second front end located in the medium facing surface.
摘要翻译：磁头包括主极，写屏蔽和间隙部分。写屏蔽包括具有与主极的底端相对的顶表面的前导屏蔽。间隙部分包括用于将主屏蔽与主极的底端分离的前导间隙部分。前导间隙部分使用第一非磁性层和第二非磁性层形成。第一非磁性层具有位于与介质相对表面最近但距离介质相对表面一个距离的第一前端。第二非磁性层具有位于介质相对表面中的第二前端。

50. 发明授权

US10062402B1 Waveguide including first and second layers and manufacturing method thereof 有权
公开(公告)号：US10062402B1
公开(公告)日：2018-08-28
申请号：US15830818
申请日：2017-12-04
申请人： Hironori Araki , Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Seiichiro Tomita , Masakazu Okada
发明人： Hironori Araki , Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Seiichiro Tomita , Masakazu Okada
IPC分类号： G11B7/135 , G11B5/60 , G11B5/31 , H01P3/16 , G11B5/127 , H01P1/17 , G11B5/00
CPC分类号： G11B5/6088 , G11B5/1278 , G11B5/3116 , G11B5/314 , G11B2005/0021 , H01P1/174 , H01P3/16
摘要： A manufacturing method for a waveguide includes forming a core including a first layer and a second layer. The first layer has a top surface including a first region with which a bottom surface of the second layer is in contact, and a second region with which the bottom surface of the second layer is not in contact. Forming the core includes the steps of: forming an initial first layer; forming an etching stopper layer on the second region of the initial first layer; forming an initial second layer on the initial first layer and the etching stopper layer; etching the initial second layer and the initial first layer so as to make the initial first layer into the first layer; and etching the initial second layer until the etching stopper layer is exposed, so as to make the initial second layer into the second layer.

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