公开(公告)号：US06577472B2

公开(公告)日：2003-06-10

申请号：US09795085

申请日：2001-03-01

申请人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

发明人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

IPC分类号： G11B582

CPC分类号： G11B5/7315 ,  G11B5/82 ,  G11B5/8404

摘要： A glass substrate for a magnetic disk contains a transition metal. The substrate, which is subjected to formation of zone texturing by irradiating the substrate with a laser beam, has a high mechanical strength even if it is not chemically strengthened. The glass substrate contains a transition metal element and has a transmittance of 10% or less for light in a wavelength range of 300 to 2000 nm. The surface roughness of an information recording surface portion thereof is 2.0 nm or less. In addition to a transition metal element, the glass substrate may include a rare earth metal element.

摘要翻译： 用于磁盘的玻璃基板包含过渡金属。 通过用激光束照射基板而形成区域纹理的基板即使没有化学强化也具有高的机械强度。 玻璃基板含有过渡金属元素，对于300〜2000nm的波长范围的透光率为10％以下。 其信息记录表面部分的表面粗糙度为2.0nm以下。 除了过渡金属元素之外，玻璃基板可以包括稀土金属元素。

公开(公告)号：US07035049B2

公开(公告)日：2006-04-25

申请号：US10916439

申请日：2004-08-12

申请人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

发明人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

IPC分类号： G11B5/82

CPC分类号： G11B5/7315 ,  G11B5/82 ,  G11B5/8404

摘要： A glass substrate for a magnetic disk contains a transition metal. The substrate, which is subjected to formation of zone texturing by irradiating the substrate with a laser beam, has a high mechanical strength even if it is not chemically strengthened. The glass substrate contains a transition metal element and has a transmittance of 10% of less for light in a wavelength range of 300 to 2000 nm. The surface roughness of an information recording surface portion thereof is 2.0 nm or less. In addition to a transition metal element, the glass substrate may include a rare earth metal element.

公开(公告)号：US20060034015A1

公开(公告)日：2006-02-16

申请号：US11268566

申请日：2005-11-08

申请人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

发明人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

IPC分类号： G11B5/82

CPC分类号： G11B5/7315 ,  G11B5/82 ,  G11B5/8404

摘要： A glass substrate for a magnetic disk contains a transition metal. The substrate, which is subjected to formation of zone texturing by irradiating the substrate with a laser beam, has a high mechanical strength even if it is not chemically strengthened. The glass substrate contains a transition metal element and has a transmittance of 10% of less for light in a wavelength range of 300 to 2000 nm. The surface roughness of an information recording surface portion thereof is 2.0 nm or less. In addition to a transition metal element, the glass substrate may include a rare earth metal element.

摘要翻译： 用于磁盘的玻璃基板包含过渡金属。 通过用激光束照射基板而形成区域纹理的基板即使没有化学强化也具有高的机械强度。 玻璃基板含有过渡金属元素，在300〜2000nm的波长范围内的透光率为10％以下。 其信息记录表面部分的表面粗糙度为2.0nm以下。 除了过渡金属元素之外，玻璃基板可以包括稀土金属元素。

公开(公告)号：US6096445A

公开(公告)日：2000-08-01

申请号：US65595

申请日：1998-04-24

申请人： Masatomo Terakado ,  Youichi Inomata ,  Yotsuo Yahisa ,  Akira Ishikawa ,  Kiyoshi Akamatsu

发明人： Masatomo Terakado ,  Youichi Inomata ,  Yotsuo Yahisa ,  Akira Ishikawa ,  Kiyoshi Akamatsu

IPC分类号： G11B5/66 ,  G11B5/73 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84

CPC分类号： G11B5/7325 ,  Y10S428/90

摘要： A non-ferromagnetic metal thin film is formed on a non-ferromagnetic substrate such as a glass substrate. A target principally containing an intermetallic compound is sputtered to form a fine structure having discrete bumps provided on the surface of the substrate. In addition, ring bumps different from the bumps of the intermetallic compound are formed on a contact start/stop zone by a laser or other means, thus completing a magnetic recording medium.

摘要翻译： 在非铁磁性基板（例如玻璃基板）上形成非铁磁金属薄膜。 主要包含金属间化合物的靶被溅射以形成具有设置在基板表面上的分立凸块的精细结构。 此外，通过激光或其他方式在接触开始/停止区域上形成与金属间化合物的凸块不同的环形凸起，从而完成磁记录介质。

公开(公告)号：US07259936B2

公开(公告)日：2007-08-21

申请号：US11268566

申请日：2005-11-08

申请人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

发明人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

IPC分类号： G11B5/82

CPC分类号： G11B5/7315 ,  G11B5/82 ,  G11B5/8404

摘要： A glass substrate for a magnetic disk contains a transition metal. The substrate, which is subjected to formation of zone texturing by irradiating the substrate with a laser beam, has a high mechanical strength even if it is not chemically strengthened. The glass substrate contains a transition metal element and has a transmittance of 10% of less for light in a wavelength range of 300 to 2000 nm. The surface roughness of an information recording surface portion thereof is 2.0 nm or less. In addition to a transition metal element, the glass substrate may include a rare earth metal element.

摘要翻译： 用于磁盘的玻璃基板包含过渡金属。 通过用激光束照射基板而形成区域纹理的基板即使没有化学强化也具有高的机械强度。 玻璃基板含有过渡金属元素，在300〜2000nm的波长范围内的透光率为10％以下。 其信息记录表面部分的表面粗糙度为2.0nm以下。 除了过渡金属元素之外，玻璃基板可以包括稀土金属元素。

公开(公告)号：US06937445B2

公开(公告)日：2005-08-30

申请号：US10368572

申请日：2003-02-20

申请人： Isamu Yuito ,  Kiyoshi Akamatsu

发明人： Isamu Yuito ,  Kiyoshi Akamatsu

IPC分类号： G11B5/31 ,  G11B5/39

CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/313 ,  G11B5/3136 ,  G11B5/3903 ,  G11B5/3967 ,  G11B2005/3996

摘要： An area in which an insulating film is formed over a substrate of a recording/reproducing separated type head is limited to the vicinity of a GMR film. This enables heat of Joule heating by a coil to be guided to the substrate without being obstructed by the insulating film. Electrodes, an upper shield film, a lower shield and a lower pole that are formed in-between are metallic thin films of high thermal conductivity, and accordingly have little influence. Similarly, gap films and a separation film that are positioned in-between, though they are electrically insulating films made of A12O3, have no great influence because of their thinness. According to the invention, a rise of the head's own temperature is restrained by efficiently radiating heat generated by the head itself to the substrate. As a result, it is thereby made possible to provide a highly reliable recording/reproducing separated type head whose deformation quantity is smaller and which can avoid coming into contact with a recording medium.

摘要翻译： 在记录/再现分离型磁头的基板上形成绝缘膜的区域被限制在GMR膜附近。 这使得线圈的焦耳加热热能被引导到衬底而不被绝缘膜阻碍。 形成在其间的电极，上屏蔽膜，下屏蔽和下极是导热性高的金属薄膜，因此影响很小。 类似地，间隙膜和分离膜位于它们之间，尽管它们是由Al 2 O 3 3 3 3制成的电绝缘膜，但由于它们的薄度而没有很大的影响 。 根据本发明，通过有效地将头部本身产生的热量有效地辐射到衬底来抑制头部自身温度的上升。 结果，由此可以提供变形量更小并且可以避免与记录介质接触的高度可靠的记录/再现分离型头。

公开(公告)号：US20050013048A1

公开(公告)日：2005-01-20

申请号：US10916439

申请日：2004-08-12

申请人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

发明人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

IPC分类号： G11B5/73 ,  G11B5/82 ,  G11B5/84 ,  B32B17/00

CPC分类号： G11B5/7315 ,  G11B5/82 ,  G11B5/8404

摘要： A glass substrate for a magnetic disk contains a transition metal. The substrate, which is subjected to formation of zone texturing by irradiating the substrate with a laser beam, has a high mechanical strength even if it is not chemically strengthened. The glass substrate contains a transition metal element and has a transmittance of 10% of less for light in a wavelength range of 300 to 2000 nm. The surface roughness of an information recording surface portion thereof is 2.0 nm or less. In addition to a transition metal element, the glass substrate may include a rare earth metal element.

摘要翻译： 用于磁盘的玻璃基板包含过渡金属。 通过用激光束照射基板而形成区域纹理的基板即使没有化学强化也具有高的机械强度。 玻璃基板含有过渡金属元素，在300〜2000nm的波长范围内的透光率为10％以下。 其信息记录表面部分的表面粗糙度为2.0nm以下。 除了过渡金属元素之外，玻璃基板可以包括稀土金属元素。

公开(公告)号：US06801397B2

公开(公告)日：2004-10-05

申请号：US10408444

申请日：2003-04-08

申请人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

发明人： Hiroki Yamamoto ,  Takashi Namekawa ,  Takashi Naito ,  Yasutaka Suzuki ,  Akira Kato ,  Noriyuki Takeo ,  Kiyoshi Akamatsu ,  Youichi Inomata ,  Masatomo Terakado ,  Ken Takahashi

IPC分类号： G11B582

CPC分类号： G11B5/7315 ,  G11B5/82 ,  G11B5/8404

摘要： A glass substrate for a magnetic disk contains a transition metal. The substrate, which is subjected to formation of zone texturing by irradiating the substrate with a laser beam, has a high mechanical strength even if it is not chemically strengthened. The glass substrate contains a transition metal element and has a transmittance of 10% or less for light in a wavelength range of 300 to 2000 nm. The surface roughness of an information recording surface portion thereof is 2.0 nm or less. In addition to a transition metal element, the glass substrate may include a rare earth metal element.

摘要翻译： 用于磁盘的玻璃基板包含过渡金属。 通过用激光束照射基板而形成区域纹理的基板即使没有化学强化也具有高的机械强度。 玻璃基板含有过渡金属元素，对于300〜2000nm的波长范围的透光率为10％以下。 其信息记录表面部分的表面粗糙度为2.0nm以下。 除了过渡金属元素之外，玻璃基板可以包括稀土金属元素。

公开(公告)号：US06690544B2

公开(公告)日：2004-02-10

申请号：US10320386

申请日：2002-12-17

申请人： Atsuko Okawa ,  Yasuo Hira ,  Hirotaka Imayama ,  Masayasu Fujisawa ,  Saburou Suzuki ,  Eisei Togawa ,  Noriyuki Saiki ,  Nobuo Suzuki ,  Hiroshi Agari ,  Kiyoshi Akamatsu ,  Hiromu Chiba

发明人： Atsuko Okawa ,  Yasuo Hira ,  Hirotaka Imayama ,  Masayasu Fujisawa ,  Saburou Suzuki ,  Eisei Togawa ,  Noriyuki Saiki ,  Nobuo Suzuki ,  Hiroshi Agari ,  Kiyoshi Akamatsu ,  Hiromu Chiba

IPC分类号： G11B560

CPC分类号： G11B5/6005 ,  Y10T29/49041

摘要： A magnetic head slider including a plurality of rails adapted to face a magnetic disk. Each of the rails has a longitudinal extension direction substantially in a direction of rotation of the magnetic disk, and a protective film is provided on a floating surface of at least one of the rails. A thickness of the protective film at least in a direction transverse to the longitudinal extension direction of the at least one of the rails is not uniform in the transverse direction.

摘要翻译： 一种磁头滑块，包括适于面向磁盘的多个导轨。 每个轨道具有基本上在磁盘的旋转方向上的纵向延伸方向，并且保护膜设置在至少一个轨道的浮动表面上。 保护膜的至少沿横向于至少一个轨道的纵向延伸方向的方向的厚度在横向方向上不均匀。

公开(公告)号：US06504680B2

公开(公告)日：2003-01-07

申请号：US09927392

申请日：2001-08-13

申请人： Atsuko Okawa ,  Yasuo Hira ,  Hirotaka Imayama ,  Masayasu Fujisawa ,  Saburou Suzuki ,  Eisei Togawa ,  Noriyuki Saiki ,  Nobuo Suzuki ,  Hiroshi Agari ,  Kiyoshi Akamatsu ,  Hiromu Chiba

发明人： Atsuko Okawa ,  Yasuo Hira ,  Hirotaka Imayama ,  Masayasu Fujisawa ,  Saburou Suzuki ,  Eisei Togawa ,  Noriyuki Saiki ,  Nobuo Suzuki ,  Hiroshi Agari ,  Kiyoshi Akamatsu ,  Hiromu Chiba

IPC分类号： G11B560

CPC分类号： G11B5/6005 ,  Y10T29/49041

摘要： A method of manufacturing a magnetic head slider for a magnetic head and the magnetic slider wherein the slider has non-linear rails formed in a floating surface thereof by processing including one of reactive ion etching, sputter etching and an ion milling, and side walls of the non-linear rails are polished after formation of the non-linear rails by the processing.