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1. 发明授权

US08072710B2 Thin-film magnetic head that locally projects an element part toward a recording medium by thermal expansion 有权
标题翻译：通过热膨胀将元件部分局部投射到记录介质的薄膜磁头
公开(公告)号：US08072710B2
公开(公告)日：2011-12-06
申请号：US12105057
申请日：2008-04-17
申请人： Mitsuo Kawasaki , Kiyoshi Kobayashi , Tomoo Otsuka , Hironori Namba , Yusuke Kanekuni
发明人： Mitsuo Kawasaki , Kiyoshi Kobayashi , Tomoo Otsuka , Hironori Namba , Yusuke Kanekuni
IPC分类号： G11B5/33
CPC分类号： G11B5/3133 , G11B5/3116 , G11B5/6064
摘要： A thin-film magnetic head comprises a reproducing element formed on an undercoat film on a head substrate surface, a recording element formed on the upper side of the reproducing element, and a heater formed on the upper or lower side of the reproducing element, the heater generating heat upon energization so as to project at least the reproducing element by thermal expansion toward a recording medium. A shield layer is formed between the reproducing element and the heater by a plurality of layers including at least first and second shield layers. In the first and second shield layers, the second upper shield layer located closer to the heater is formed by a material having a coefficient of thermal expansion smaller than that of the first shield layer located closer to the reproducing element.
摘要翻译：薄膜磁头包括形成在头基板表面上的底涂膜上的再现元件，形成在再现元件的上侧的记录元件和形成在再现元件的上侧或下侧的加热器，加热器在通电时产生热量，以便通过热膨胀将至少再现元件投射到记录介质。通过包括至少第一和第二屏蔽层的多个层，在再现元件和加热器之间形成屏蔽层。在第一和第二屏蔽层中，位于更靠近加热器的第二上屏蔽层由热膨胀系数小于靠近再生元件的第一屏蔽层的材料形成。

2. 发明授权

US07288333B2 Magnetic film and thin film magnetic head using this magnetic film 有权
标题翻译：使用这种磁性膜的磁性膜和薄膜磁头
公开(公告)号：US07288333B2
公开(公告)日：2007-10-30
申请号：US10659119
申请日：2003-09-10
申请人： Mitsuo Kawasaki , Hisayuki Yazawa , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Hisayuki Yazawa , Yoshihiro Kanada
IPC分类号： G11B5/31 , G11B5/127
CPC分类号： C25D3/562 , C25D5/18 , C25D7/001 , G11B5/3109 , G11B5/3113 , G11B5/313 , G11B5/3163 , H01F10/16 , Y10T428/115 , Y10T428/1186 , Y10T428/1193 , Y10T428/32 , Y10T428/325
摘要： A soft magnetic film of the present invention is a plated film composed of Co and Fe, and columnar crystals extending in the film thickness direction are provided. In the present invention, columnar crystals extending in the film thickness direction are provided so that an improvement in the surface roughness of the film surface and an improvement in the corrosion resistance can be achieved. Furthermore, the saturation magnetic flux density Bs can also be improved by making the crystal fine and eliminating the need for addition of the noble metal element. That is, according to a CoFe alloy of the present invention, both the corrosion resistance and the saturation magnetic flux density Bs can be improved, and specifically, the above-mentioned saturation magnetic flux density Bs can be increased to 2.35 T or more.
摘要翻译：本发明的软磁性膜是由Co和Fe组成的镀膜，并且设置在膜厚度方向上延伸的柱状晶体。在本发明中，提供了沿膜厚方向延伸的柱状晶体，从而可以实现膜表面的粗糙度的提高和耐腐蚀性的提高。此外，通过使晶体细化并且不需要添加贵金属元素，也可以提高饱和磁通密度Bs。也就是说，根据本发明的CoFe合金，可以提高耐腐蚀性和饱和磁通密度Bs，特别是上述饱和磁通密度Bs可以提高到2.35T以上。

3. 发明申请

US20080007852A1 Reflectance Control Optical Element and Ultrathin Film Light Absorption Enhancing Element 审中-公开
标题翻译：反射控制光学元件和超薄膜光吸收增强元件
公开(公告)号：US20080007852A1
公开(公告)日：2008-01-10
申请号：US11883530
申请日：2006-02-07
申请人： Mitsuo Kawasaki
发明人： Mitsuo Kawasaki
IPC分类号： G02B5/26 , B05D3/06 , G11B7/24
CPC分类号： G02B5/206 , B82Y20/00 , G02B5/08 , G02B5/09 , G02B2207/101
摘要： The present invention provides a simple-structured reflectance control optical element whose reflectance can be significantly changed and precisely controlled. A transparent film is provided on a substrate having a high reflectance, and further on the surface, an ultrathin film consisting of a metal thin film in which metal nanoparticles having an average particle diameter of 10 nm or less are adjacent to or in contact with each other. The metal is at least any of a single platinum group element, an alloy of platinum group elements, and an alloy of a platinum group element and nickel. The thus obtained element having a three-layer structure has a characteristic of a sharp drop in the reflectance to the light of a given wavelength. By appropriately selecting the thickness or the refractive index of the transparent film, the thickness or the materials of the ultrathin film, and the like, it is possible to control the reflectance according to wavelength. In particular, the metal thin film consisting of a platinum group element makes it feasible to easily control the presence or absence of the ultrathin film by pulsed laser irradiation. Moreover, the present invention provides a light absorption enhancing element in the ultrathin film taking advantage of the reflectance modulation characteristics.
摘要翻译：本发明提供一种其反射率可以显着改变和精确控制的简单结构的反射控制光学元件。在具有高反射率的基板上提供透明膜，并且在表面上还包括由金属薄膜构成的超薄膜，其中平均粒径为10nm以下的金属纳米颗粒相邻或接触每个其他。该金属为铂族元素，铂族元素的合金，铂族元素和镍的合金中的至少任一种。由此获得的具有三层结构的元件具有对给定波长的光的反射率的急剧下降的特性。通过适当选择透明膜的厚度或折射率，超薄膜的厚度或材料等，可以根据波长控制反射率。特别地，由铂族元素构成的金属薄膜可以通过脉冲激光照射容易地控制超薄膜的存在或不存在。此外，本发明利用反射调制特性提供了超薄膜中的光吸收增强元件。

4. 发明授权

US08273149B2 Method for producing nanometer-size wires and nanometer-size wire 失效
标题翻译：制造纳米尺寸线和纳米线的方法
公开(公告)号：US08273149B2
公开(公告)日：2012-09-25
申请号：US12308728
申请日：2007-06-20
申请人： Yasuhiko Shimotsuma , Kiyotaka Miura , Kazuyuki Hirao , Mitsuo Kawasaki , Osamu Kajita , Takafumi Iwamoto , Eitaro Yasuda , Shigeyuki Kimura
发明人： Yasuhiko Shimotsuma , Kiyotaka Miura , Kazuyuki Hirao , Mitsuo Kawasaki , Osamu Kajita , Takafumi Iwamoto , Eitaro Yasuda , Shigeyuki Kimura
IPC分类号： B22F9/04
CPC分类号： B22F9/04 , B22F1/0025 , B22F2998/00 , B82Y30/00 , Y10T428/2913 , B22F1/0055 , B22F1/0018
摘要： The present invention provides a nanowire production method that is simpler than conventional nanowire production methods, and that makes it easier to control the size and shape of the nanowires by using a technique completely different from the conventional ones. A powder particle containing a metal element is divided into nanometer-size wires containing the metal element by irradiating a suspension of the powder particles with a femtosecond laser. The present invention also makes it possible to divide the nanometer-size wires thus formed into nanometer-size particles containing the metal element by irradiating further the nanometer-size wires with the femtosecond laser.
摘要翻译：本发明提供了一种比传统纳米线生产方法简单的纳米线制造方法，并且通过使用与常规纳米线完全不同的技术，更容易控制纳米线的尺寸和形状。通过用飞秒激光照射粉末颗粒的悬浮液，将含有金属元素的粉末颗粒分成含有金属元素的纳米线。本发明还可以通过用飞秒激光进一步照射纳米尺寸的线将由此形成的纳米尺寸的线分割成包含金属元素的纳米尺寸的颗粒。

5. 发明授权

US06714380B2 Soft magnetic film having improved saturated magnetic flux density, magnetic head using the same, and manufacturing method therefor 失效
标题翻译：具有提高的饱和磁通密度的软磁性膜，使用其的磁头及其制造方法
公开(公告)号：US06714380B2
公开(公告)日：2004-03-30
申请号：US10042085
申请日：2002-01-08
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
IPC分类号： G11B5147
CPC分类号： H01F10/16 , G11B5/3109 , G11B5/3116 , G11B5/3163 , Y10T428/11 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/24355 , Y10T428/24777
摘要： A lower magnetic pole layer and/or an upper magnetic pole layer are formed of a CoFe&agr; alloy in which the component ratio X of Co is 8 to 48 mass %, the component ratio Y of Fe is 50 to 90 mass %, the component ratio Z of the element &agr; (the element &agr; is at least one of Ni and Cr) is 2 to 20 mass %, and the equation X+Y+Z=100 mass % is satisfied. Consequently, the saturated magnetic flux density can be 2.0 T or more, and a thin-film magnetic head have a higher recording density can be manufactured.
摘要翻译：下磁极层和/或上磁极层由Co组分比X为8〜48质量％的CoFealpha合金形成，Fe的成分比例Y为50〜90质量％，成分比例元素α（元素α为Ni和Cr中的至少一种）的Z为2〜20质量％，并且满足式X + Y + Z = 100质量％。因此，饱和磁通密度可以为2.0T以上，并且可以制造具有较高记录密度的薄膜磁头。

6. 发明授权

US06638596B1 Thin film magnetic head using soft magnetic film having soft magnetic characteristics of high resistivity, low coercive force, and high saturation magnetic flux density 失效
标题翻译：使用具有高电阻，低矫顽磁力和高饱和磁通密度的软磁特性的软磁膜的薄膜磁头
公开(公告)号：US06638596B1
公开(公告)日：2003-10-28
申请号：US09599498
申请日：2000-06-22
申请人： Mitsuhiro Gotoh , Hisayuki Yazawa , Yoshihiro Kanada , Mitsuo Kawasaki
发明人： Mitsuhiro Gotoh , Hisayuki Yazawa , Yoshihiro Kanada , Mitsuo Kawasaki
IPC分类号： G11B531
CPC分类号： G11B5/3109 , Y10T428/1157 , Y10T428/1171 , Y10T428/12944 , Y10T428/12951
摘要： A soft magnetic film of the invention is to improve a resistivity &rgr; while maintaining a coercive force Hc and a saturation magnetic flux density Ms in good states by adding an element X (X is one or more kinds of elements selected from O, C, N, and S). Further, a thin film magnetic head capable of coping with an increase in a recording density and an increase in a recording frequency can be provided by using the soft magnetic film in core layers.
摘要翻译：本发明的软磁性膜是通过添加元素X（X是选自O，C，N中的一种或多种元素）来改善电阻率rho，同时保持良好状态下的矫顽力Hc和饱和磁通密度Ms ，和S）。此外，通过使用芯层中的软磁性膜，可以提供能够应付记录密度增加和记录频率增加的薄膜磁头。

7. 发明申请

US20090291302A1 Method for producing nanometer-size wires and nanometer-size wire 失效
标题翻译：制造纳米尺寸线和纳米线的方法
公开(公告)号：US20090291302A1
公开(公告)日：2009-11-26
申请号：US12308728
申请日：2006-06-27
申请人： Yasuhiko Shimotsuma , Kiyotaka Miura , Kazuyuki Hirao , Mitsuo Kawasaki , Osamu Kajita , Takafumi Iwamoto , Eitaro Yasuda , Shigeyuki Kimura
发明人： Yasuhiko Shimotsuma , Kiyotaka Miura , Kazuyuki Hirao , Mitsuo Kawasaki , Osamu Kajita , Takafumi Iwamoto , Eitaro Yasuda , Shigeyuki Kimura
IPC分类号： B82B1/00 , B82B3/00
CPC分类号： B22F9/04 , B22F1/0025 , B22F2998/00 , B82Y30/00 , Y10T428/2913 , B22F1/0055 , B22F1/0018
摘要： The present invention provides a nanowire production method that is simpler than conventional nanowire production methods, and that makes it easier to control the size and shape of the nanowires by using a technique completely different from the conventional ones. A powder particle containing a metal element is divided into nanometer-size wires containing the metal element by irradiating a suspension of the powder particles with a femtosecond laser. The present invention also makes it possible to divide the nanometer-size wires thus formed into nanometer-size particles containing the metal element by irradiating further the nanometer-size wires with the femtosecond laser.
摘要翻译：本发明提供了一种比传统纳米线生产方法简单的纳米线制造方法，并且通过使用与常规纳米线完全不同的技术，更容易控制纳米线的尺寸和形状。通过用飞秒激光照射粉末颗粒的悬浮液，将含有金属元素的粉末颗粒分成含有金属元素的纳米线。本发明还可以通过用飞秒激光进一步照射纳米尺寸的线将由此形成的纳米尺寸的线分割成包含金属元素的纳米尺寸的颗粒。

8. 发明授权

US07396445B2 Method of manufacturing a thin-film magnetic head using a soft magnetic film having high saturation magnetic flux density 失效
标题翻译：使用具有高饱和磁通密度的软磁膜制造薄膜磁头的方法
公开(公告)号：US07396445B2
公开(公告)日：2008-07-08
申请号：US10833359
申请日：2004-07-16
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
IPC分类号： C25D5/02 , C25D5/18 , C25D3/56
CPC分类号： C25D3/562 , C25D5/18 , G11B5/3109 , G11B5/313 , G11B5/3153 , G11B5/40 , Y10T428/115 , Y10T428/1171 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/12931 , Y10T428/24355
摘要： A soft magnetic film is formed of a CoFe alloy having an Fe content in the range of 68 to 80 mass %, thereby having a saturation magnetic flux density of 2.0 T or more. The center lain average roughness of the film surface is 9 nm or less. The soft magnetic film can achieve a corrosive resistant magnetic head with a high recording density.
摘要翻译：软磁性膜由Fe含量为68〜80质量％的CoFe合金形成，饱和磁通密度为2.0T以上。膜表面的中心平均粗糙度为9nm以下。软磁膜可以实现高记录密度的耐腐蚀磁头。

9. 发明授权

US06898054B2 Corrosion-resistant soft magnetic film, method of producing the same, thin film magnetic head using the same and method of manufacturing the thin film magnetic head 有权
标题翻译：耐腐蚀软磁性膜，其制造方法，使用其的薄膜磁头及其制造方法
公开(公告)号：US06898054B2
公开(公告)日：2005-05-24
申请号：US09867825
申请日：2001-05-30
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
IPC分类号： C22C38/00 , G11B5/31 , H01F10/14 , H01F41/24 , G11B5/147
CPC分类号： H01F10/14 , G11B5/3109
摘要： A lower pole layer and/or an upper pole layer is formed by plating a soft magnetic film represented by the formula FeXNiYαZ (wherein element α is at least one of Tc, Ru, Rh, Pd, Re, Os, Ir and Pt), wherein the composition ratio X of Fe is 65% by mass to 74% by mass, the composition ratio Y of Ni 25% by mass to 34% by mass, the composition ratio Z of the element α is 1% by mass to 7% by mass, and X+Y+Z=100% by mass. Therefore, a thin film magnetic head adaptable to a higher recording density and having excellent corrosion resistance can be manufactured.
摘要翻译：通过电镀由下式表示的软磁性膜形成下极层和/或上电极层：（其中元素α为Tc，Ru，Rh，Pd，Re，Os，Ir和Pt中的至少一种），其中Fe的组成比X为65质量％至74质量％，Ni的组成比Y 25质量％至34质量％，元素α的组成比Z为1质量％至7质量％，X + Y + Z = 100质量％。因此，可以制造适应于更高记录密度并具有优异耐腐蚀性的薄膜磁头。

10. 发明申请

US20050029108A1 Soft magnetic film having high saturation magnetic flux density, thin-film magnetic head using the same, and manufacturing method of the same 失效
标题翻译：具有高饱和磁通密度的软磁性膜，使用其的薄膜磁头及其制造方法
公开(公告)号：US20050029108A1
公开(公告)日：2005-02-10
申请号：US10833359
申请日：2004-07-16
申请人： Mitsuo Kawasaki , Yoshihiro Kanada
发明人： Mitsuo Kawasaki , Yoshihiro Kanada
IPC分类号： C25D3/56 , C25D5/18 , G11B5/31 , G11B5/40
CPC分类号： C25D3/562 , C25D5/18 , G11B5/3109 , G11B5/313 , G11B5/3153 , G11B5/40 , Y10T428/115 , Y10T428/1171 , Y10T428/1186 , Y10T428/12465 , Y10T428/12646 , Y10T428/12931 , Y10T428/24355
摘要： A soft magnetic film is formed of a CoFe alloy having an Fe content in the range of 68 to 80 mass %, thereby having a saturation magnetic flux density of 2.0 T or more. The center lain average roughness of the film surface is 9 nm or less. The soft magnetic film can achieve a corrosive resistant magnetic head with a high recording density.
摘要翻译：软磁性膜由Fe含量为68〜80质量％的CoFe合金形成，饱和磁通密度为2.0T以上。膜表面的中心平均粗糙度为9nm以下。软磁膜可以实现高记录密度的耐腐蚀磁头。

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