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1. 发明授权

US06687195B2 Magnetic recording head and magnetic recording device 有权
标题翻译：磁记录头和磁记录装置
公开(公告)号：US06687195B2
公开(公告)日：2004-02-03
申请号：US10014311
申请日：2001-12-11
申请人： Shintaro Miyanishi , Kunio Kojima , Hiroyuki Katayama , Hiroshi Fuji
发明人： Shintaro Miyanishi , Kunio Kojima , Hiroyuki Katayama , Hiroshi Fuji
IPC分类号： G11B1100
CPC分类号： G11B5/488 , G11B5/127 , G11B5/17 , G11B5/29 , G11B5/3103 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： A light emitting device for focusing a laser beam without adopting an optical lens system is provided, as well as a composite magnetic recording head and a magnetic recording device, which realize a smaller laser spot diameter and a sharp magnetic field distribution, whereby an optical-assisted high density magnetic recording can be realized, and which also realize a simplified head structure, and improvements in productivity and costs. The composite magnetic recording head is prepared by integrally forming a magnetic coil layer for use in magnetic recording at around the center of the surface-emitting laser aperture, and further, a shielding plate is formed at the center of the laser aperture. As a result, a laser beam can be focused on the irradiation surface of the magnetic recording medium at portion right below the shielding member so as to locally heat the irradiated portion, and further a magnetic field for magnetic recording is applied in the laser heated portion, thereby realizing a high density magnetic recording.
摘要翻译：提供了一种不采用光学透镜系统来聚焦激光束的发光装置，以及实现较小的激光光斑直径和尖锐的磁场分布的复合磁记录头和磁记录装置，可以实现辅助的高密度磁记录，并且还实现了简化的头部结构，并且提高了生产率和成本。复合磁记录头通过在表面发射激光器孔的中心周围整体地形成用于磁记录的磁性线圈层，并且还在激光孔的中心形成遮蔽板。结果，可以将激光束聚焦在屏蔽部件正下方的部分的磁记录介质的照射表面上，以便局部加热照射部分，并且在激光加热部分中进一步施加用于磁记录的磁场，从而实现高密度磁记录。

2. 发明授权

US07307923B2 Electro magnetic field generating element, information recording and reproducing head and information recording and reproducing device 有权
标题翻译：电磁场产生元件，信息记录和再现头以及信息记录和再现装置
公开(公告)号：US07307923B2
公开(公告)日：2007-12-11
申请号：US10811429
申请日：2004-03-25
申请人： Shintaro Miyanishi , Hiroshi Fuji , Kunio Kojima
发明人： Shintaro Miyanishi , Hiroshi Fuji , Kunio Kojima
IPC分类号： G11B11/00 , G11B7/08 , G11B7/00
CPC分类号： G11B11/10536 , G11B7/1387 , G11B11/10541 , G11B11/10554
摘要： To realize an electromagnetic field generating element, an information recording and reproducing head and an information recording and reproducing device for high frequency magnetic recording and reproducing by the optically assisted magnetic recording and reproduction using near field, which permit attenuation or delay of a magnetic field to be suppressed, the electromagnetic field generating element of the present invention generates a magnetic field in a direction parallel to the surface of a constricting section by supplying current in the conductive member, and applying a laser beam from the side of the substrate to the constricting section, and a surface plasmon is excited by an magnetic field vector vertical to the surface of the constricting section, thereby generating near field from the surface facing the interface between the substrate and the constricting section.
摘要翻译：为了实现电磁场产生元件，信息记录和再现头和用于通过使用近场的光辅助磁记录和再现的高频磁记录和再现的信息记录和再现装置，其允许磁场的衰减或延迟本发明的电磁场产生元件通过在导电构件中供给电流而在与收缩部的表面平行的方向上产生磁场，并将激光束从基板的侧面施加到收缩部并且表面等离子体激元被垂直于收缩部分表面的磁场矢量激励，从而从面向衬底和收缩部分之间的界面的表面产生近场。

3. 发明授权

US06956808B2 Optical device and optical sensor 失效
标题翻译：光学设备和光学传感器
公开(公告)号：US06956808B2
公开(公告)日：2005-10-18
申请号：US10680215
申请日：2003-10-08
申请人： Shintaro Miyanishi , Kunio Kojima , Hiroshi Fuji , Mototaka Taneya
发明人： Shintaro Miyanishi , Kunio Kojima , Hiroshi Fuji , Mototaka Taneya
IPC分类号： H01S5/30 , G11B7/12 , G11B7/135 , G11B7/00 , H01S5/00
CPC分类号： G11B7/1387 , G11B7/122
摘要： An aperture 12 for producing an evanescent wave is provided at an n-Au electrode 106. The aperture 12 is directed roughly perpendicularly to a direction in which end faces 104a of an active layer 104 of an optical device oppose to each other, and therefore, laser light generated in the active layer 104 is made incident in the form of the p-polarized light. By the incidence of the p-polarized laser light, an evanescent wave of a comparatively great intensity is obtained from the aperture 12. With this arrangement, an optical device capable of obtaining an evanescent wave of a comparatively great intensity is provided.
摘要翻译：在n-Au电极106处设置用于产生ev逝波的孔12。孔12大致垂直于光学装置的有源层104的端面104a彼此相对的方向，因此在有源层104中产生的激光以p的形式入射 -偏振光。通过p极化激光的入射，从孔12获得相对较大强度的ev逝波。通过这种布置，可以提供能够获得相当大强度的ev逝波的光学装置。

4. 发明授权

US06804822B2 Magnetic recording medium and magnetic recording apparatus using same 有权
标题翻译：磁记录介质和使用其的磁记录装置
公开(公告)号：US06804822B2
公开(公告)日：2004-10-12
申请号：US10132775
申请日：2002-04-25
申请人： Junichi Sato , Kosuke Watanabe , Kunio Kojima , Hiroyuki Katayama , Hiroshi Fuji , Kenji Ohta
发明人： Junichi Sato , Kosuke Watanabe , Kunio Kojima , Hiroyuki Katayama , Hiroshi Fuji , Kenji Ohta
IPC分类号： G11B724
CPC分类号： G11B5/7325 , G11B5/012 , G11B5/74 , G11B5/82 , G11B11/10508 , G11B11/10584 , G11B11/10591 , G11B2005/0005 , G11B2005/0021
摘要： A magnetic recording medium, which includes a substrate and an amorphous magnetic layer, made of an amorphous magnetic material, for magnetic recording of data, is provided with an underlayer between the substrate and the amorphous magnetic layer, the underlayer being made of amorphous metal element, and having a mean thickness of 10 nm or less. In this manner, movement of magnetic domain walls of the amorphous magnetic layer is effectively limited by minute irregularities on a surface of the underlayer. This realizes a stable formation of a minute recording mark. This realizes recording having a sufficient signal quality, even when the high-density recording is performed by forming such a minute recording mark that a shortest length of the recording mark is less than 100 nm. Moreover, this allows the magnetic recording medium to have a simplified layer structure. Further, a magnetic recording apparatus magnetically records data onto a magnetic recording medium having the above arrangement, by heating a portion of the magnetic layer by radiating a light beam locally, and by applying a magnetic field on at least part of the portion of the magnetic layer on which the light beam is radiated. This provides a magnetic recording apparatus for high-density recording.
摘要翻译：包括由非晶磁性材料制成的用于磁记录数据的基板和非晶磁性层的磁记录介质在基板和非晶磁性层之间设置有底层，底层由非晶金属元件平均厚度为10nm以下。以这种方式，非晶磁性层的磁畴壁的运动被有效地限制在底层表面上的微小凹凸。这实现了一个稳定的分钟记录标记的形成。这实现了具有足够的信号质量的记录，即使当通过形成记录标记的最短长度小于100nm的这种微小记录标记来执行高密度记录时。此外，这允许磁记录介质具有简化的层结构。此外，磁记录装置将数据磁记录到具有上述结构的磁记录介质上，通过局部辐射光束加热磁性层的一部分，并且通过在磁体的至少一部分上施加磁场光束辐射的层。这提供了用于高密度记录的磁记录装置。

5. 发明授权

US06876603B2 Information write/read head including an optical slit having a light emitting section whose width is shorter than a light beam diffraction limit 有权
$Information write/read head including an optical slit having a light emitting section whose width is shorter than a light beam diffraction limit$
标题翻译：信息写入/读取头，包括具有宽度短于光束衍射极限的发光部的光学狭缝
公开(公告)号：US06876603B2
公开(公告)日：2005-04-05
申请号：US09864060
申请日：2001-05-23
申请人： Hiroshi Fuji , Hiroyuki Katayama , Kunio Kojima , Kenji Ohta
发明人： Hiroshi Fuji , Hiroyuki Katayama , Kunio Kojima , Kenji Ohta
IPC分类号： G11B11/10 , G11B5/00 , G11B5/02 , G11B5/127 , G11B13/04 , G11B21/10 , G11B11/00
CPC分类号： G11B5/127 , G11B13/045 , G11B2005/0002 , G11B2005/0005 , G11B2005/0021
摘要： An information write/read head writes or reads information on or from recording tracks by the heat-assisted system. The information write/read head includes a magnetic head provided in such a manner that a longitudinal direction of a magnetic gap crosses a scanning direction. Further, the information write/read head includes an aperture slit having a length of not less than a diffraction limit of a light beam, and a width shorter than the diffraction limit in the direction orthogonal to the recording track, which is formed in such a manner that the longitudinal direction thereof is aligned in a scanning direction of the recording track.
摘要翻译：信息写入/读取头通过热辅助系统在记录轨道上或从记录轨迹读取信息。信息写入/读取头包括以使得磁隙的纵向方向与扫描方向交叉的方式设置的磁头。此外，信息写入/读取头包括具有不小于光束的衍射极限的长度的孔径狭缝，并且其宽度比在与记录轨道正交的方向上的衍射极限短，使得其纵向方向在记录轨道的扫描方向上对齐。

6. 发明授权

US06667146B1 Optical recording medium and reproducing method therefor 失效
标题翻译：光记录介质及其再现方法
公开(公告)号：US06667146B1
公开(公告)日：2003-12-23
申请号：US09632655
申请日：2000-08-04
申请人： Yasushi Ogimoto , Kenji Nakanishi , Hiroshi Fuji , Kunio Kojima , Hiroyuki Katayama
发明人： Yasushi Ogimoto , Kenji Nakanishi , Hiroshi Fuji , Kunio Kojima , Hiroyuki Katayama
IPC分类号： G11B724
CPC分类号： G11B7/252 , B82Y10/00 , G11B7/24 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316 , G11B2007/25706 , G11B2007/2571 , G11B2007/25715 , G11B2007/25716 , Y10S430/146
摘要： An optical recording medium includes a recording layer and a mask layer on a substrate. The mask layer is formed of a material whose light transmittance is decreased by light irradiation and is increased by heating.
摘要翻译：光记录介质包括在基板上的记录层和掩模层。掩模层由光照射下的透光率降低并通过加热而增加的材料形成。

7. 发明申请

US20090106783A1 Electomagnetic field generating element, information recording/reproducing head and information recording/reproducing apparatus 有权
标题翻译：电磁场产生元件，信息记录/再现头和信息记录/重放装置
公开(公告)号：US20090106783A1
公开(公告)日：2009-04-23
申请号：US12316592
申请日：2008-12-12
申请人： Shintaro Miyanishi , Naoyasu Iketani , Kunio Kojima
发明人： Shintaro Miyanishi , Naoyasu Iketani , Kunio Kojima
IPC分类号： G11B11/00 , G11B7/08
CPC分类号： G11B11/10536 , G11B5/1278 , G11B5/314 , G11B7/1387 , G11B11/10541 , G11B11/1058 , G11B2005/0002 , G11B2005/0021
摘要： The present invention provides an electromagnetic field generating element, an information recording/reproducing head, and an information recording/reproducing apparatus. The electromagnetic field generating element makes it possible to restrain magnetic field attenuation or magnetic field delay in a high frequency recording/reproducing head for use in thermally assisted magnetic field recording/reproduction using a near field. The information recording/reproducing head and the information recording/reproducing apparatus can carry out high frequency magnetic recording/reproducing.The electromagnetic field generating element of the present invention includes: (i) a substrate, (ii) conductors each provided on the substrate and each serving as a supporting section, (iii) a plate-like-shaped conductor provided on the conductors and (iv) a semiconductor laser element provided on the substrate. The semiconductor laser element irradiated, to the plate-like-shaped conductor, laser light substantially parallel to an extending flat surface of the plate-like-shaped conductor. This causes generation of the near field in the plate-like-shaped conductor. Moreover, a magnetic field is generated by supplying a current to the plate-like-shaped conductor.
摘要翻译：本发明提供一种电磁场产生元件，信息记录/再现头和信息记录/再现装置。电磁场产生元件使得可以抑制在使用近场的热辅助磁场记录/再现中使用的高频记录/再现头中的磁场衰减或磁场延迟。信息记录/再现头和信息记录/再现装置可以执行高频磁记录/再现。本发明的电磁场产生元件包括：（i）基板，（ii）各自设置在基板上并各自用作支撑部分的导体，（iii）设置在导体上的板状导体和（ iv）设置在基板上的半导体激光元件。半导体激光元件对板状导体照射基本上平行于板状导体的延伸平坦表面的激光。这导致板状导体中的近场的产生。此外，通过向板状导体供给电流来产生磁场。

8. 发明申请

US20090296258A1 ELECTROMAGNETIC FIELD DETECTING ELEMENT AND DEVICE USING SAME 有权
标题翻译：电磁场检测元件及使用相同的器件
公开(公告)号：US20090296258A1
公开(公告)日：2009-12-03
申请号：US12067974
申请日：2006-09-25
申请人： Shintaro Miyanishi , Yasushi Ogimoto , Yoshiteru Murakami , Kunio Kojima
发明人： Shintaro Miyanishi , Yasushi Ogimoto , Yoshiteru Murakami , Kunio Kojima
IPC分类号： G11B21/02 , G01R29/08 , G11B5/127
CPC分类号： G11B5/3909 , B82Y10/00 , B82Y25/00 , G01R29/12 , G01R33/09 , G11B5/3993 , H01F10/20 , H01F10/24
摘要： An electromagnetic field detecting element 10 includes a lamination of three insulation layers 2, 3, and 4. The dielectric breakdown strength of the insulation layer 3 is greater than the dielectric breakdown strengths of insulation layers 2 and 4. The three insulation layers 2, 3, and 4 are disposed between a pair of electrodes 5 and 6. Boundaries 7 and 8 on both ends of an overlapping region of the opposing surfaces 5a and 6a in a Z direction are apart from the insulation layer 3 by thicknesses t1 and t3 of the insulation layers 2 and 4, respectively. Between the pair of electrodes 5 and 6, ballistic current paths interposing therebetween the insulation layer 3 are formed by applying, between the pair of electrodes 5 and 6, an electric field having a magnitude which causes dielectric breakdown in the insulation layers 2 and 4 while causing no dielectric breakdown in the insulation layer 3. Thus, it is possible to perform at a room temperature a highly efficient electromagnetic field detection utilizing AB effect or AC effect.
摘要翻译：电磁场检测元件10包括三个绝缘层2,3和4的叠层。绝缘层3的绝缘击穿强度大于绝缘层2和4的绝缘击穿强度。三个绝缘层2,3 和4设置在一对电极5和6之间。相对表面5a和6a在Z方向上的重叠区域的两端上的边界7和8与绝缘层3分离，厚度为t1和t3 绝缘层2和4。在一对电极5和6之间，通过在一对电极5和6之间施加具有导致绝缘层2和4中的电介质击穿的大小的电场而形成绝缘层3之间插入的防弹电流路径，同时不会在绝缘层3中产生介电击穿。因此，可以在室温下进行利用AB效应或AC效应的高效电磁场检测。

9. 发明授权

US07489597B2 Electromagnetic field generating element, information recording/reproducing head, and information recording/reproducing apparatus 有权
标题翻译：电磁场产生元件，信息记录/再现头和信息记录/再现装置
公开(公告)号：US07489597B2
公开(公告)日：2009-02-10
申请号：US11238024
申请日：2005-09-27
申请人： Shintaro Miyanishi , Naoyasu Iketani , Kunio Kojima
发明人： Shintaro Miyanishi , Naoyasu Iketani , Kunio Kojima
IPC分类号： G11B11/24 , G11B11/00
CPC分类号： G11B11/10536 , G11B5/1278 , G11B5/314 , G11B7/1387 , G11B11/10541 , G11B11/1058 , G11B2005/0002 , G11B2005/0021
摘要： An electromagnetic field generating element restrains magnetic field attenuation or magnetic field delay in a high frequency recording/reproducing head for thermally assisted magnetic field recording/reproduction using a near field. An information recording/reproducing head and an information recording/reproducing apparatus carry out high frequency magnetic recording/reproduction. The electromagnetic field generating element includes: (i) a substrate, (ii) conductors each provided on the substrate and each serving as a supporting section, (iii) a plate-like-shaped conductor provided on the conductors and (iv) a semiconductor laser element provided on the substrate. The semiconductor laser element irradiates laser light to the plate-like-shaped conductor substantially parallel to an extending flat surface of the plate-like-shaped conductor. This causes generation of a near field in the plate-like-shaped conductor. In addition, a magnetic field is generated by supplying a current to the plate-like-shaped conductor.
摘要翻译：电磁场产生元件抑制用于使用近场的热辅助磁场记录/再现的高频记录/再现头中的磁场衰减或磁场延迟。信息记录/再现头和信息记录/再现装置执行高频磁记录/再现。电磁场产生元件包括：（i）衬底，（ii）各自设置在衬底上并各自用作支撑部分的导体，（iii）设置在导体上的板状导体，以及（iv）半导体激光元件设置在基板上。半导体激光元件将激光照射到与板状导体的延伸的平坦面平行的板状导体上。这导致在板状导体中产生近场。另外，通过向板状导体供给电流来产生磁场。

10. 发明申请

US20060075417A1 Electromagnetic field generating element, information recording/reproducing head, and information recording/reproducing apparatus 有权
标题翻译：电磁场产生元件，信息记录/再现头和信息记录/再现装置
公开(公告)号：US20060075417A1
公开(公告)日：2006-04-06
申请号：US11238024
申请日：2005-09-27
申请人： Shintaro Miyanishi , Naoyasu Iketani , Kunio Kojima
发明人： Shintaro Miyanishi , Naoyasu Iketani , Kunio Kojima
IPC分类号： G11B11/00 , G11B7/08 , G11B7/085 , G11B7/09
CPC分类号： G11B11/10536 , G11B5/1278 , G11B5/314 , G11B7/1387 , G11B11/10541 , G11B11/1058 , G11B2005/0002 , G11B2005/0021
摘要： The present invention provides an electromagnetic field generating element, an information recording/reproducing head, and an information recording/reproducing apparatus. The electromagnetic field generating element makes it possible to restrain magnetic field attenuation or magnetic field delay in a high frequency recording/reproducing head for use in thermally assisted magnetic field recording/reproduction using a near field. The information recording/reproducing head and the information recording/reproducing apparatus can carry out high frequency magnetic recording/reproducing. The electromagnetic field generating element of the present invention includes: (i) a substrate, (ii) conductors each provided on the substrate and each serving as a supporting section, (iii) a plate-like-shaped conductor provided on the conductors and (iv) a semiconductor laser element provided on the substrate. The semiconductor laser element irradiated, to the plate-like-shaped conductor, laser light substantially parallel to an extending flat surface of the plate-like-shaped conductor. This causes generation of the near field in the plate-like-shaped conductor. Moreover, a magnetic field is generated by supplying a current to the plate-like-shaped conductor.
摘要翻译：本发明提供一种电磁场产生元件，信息记录/再现头和信息记录/再现装置。电磁场产生元件使得可以抑制在使用近场的热辅助磁场记录/再现中使用的高频记录/再现头中的磁场衰减或磁场延迟。信息记录/再现头和信息记录/再现装置可以执行高频磁记录/再现。本发明的电磁场产生元件包括：（i）基板，（ii）各自设置在基板上并各自用作支撑部分的导体，（iii）设置在导体上的板状导体和（ iv）设置在基板上的半导体激光元件。半导体激光元件对板状导体照射基本上平行于板状导体的延伸平坦表面的激光。这导致板状导体中的近场的产生。此外，通过向板状导体供给电流来产生磁场。

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