公开(公告)号：US08493819B2

公开(公告)日：2013-07-23

申请号：US13414789

申请日：2012-03-08

申请人： Masakazu Hirata ,  Norio Chiba ,  Manabu Oumi

发明人： Masakazu Hirata ,  Norio Chiba ,  Manabu Oumi

IPC分类号： G11B11/00

CPC分类号： G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A metal film is included which is placed between a core and a cladding, propagates a laser beam along an interface between the core and the cladding, and generates a near-field light from the laser beam. The metal film has a base portion placed on one side surface of the core along a propagation direction of the laser beam facing from one end side toward the other end side, and an extending portion extended from the other end side of the base portion to the other end side in the propagation direction rather than the core. The other end side of the extending portion is exposed to the outside, and is formed with a top portion projected toward the core side when viewed from the propagation direction.

摘要翻译： 包括放置在芯和包层之间的金属膜，沿着芯和包层之间的界面传播激光束，并且从激光束产生近场光。 金属膜具有沿着从一端侧朝向另一端侧的激光束的传播方向设置在芯的一个侧面上的基部，以及从基部的另一端侧延伸到 另一端在传播方向而不是核心。 延伸部分的另一端暴露于外部，当从传播方向观察时，形成有朝向芯侧突出的顶部。

公开(公告)号：US20120237797A1

公开(公告)日：2012-09-20

申请号：US13421929

申请日：2012-03-16

申请人： Yoshikazu Tanaka ,  Norio Chiba ,  Manabu Oumi ,  Masakazu Hirata ,  Yoko Shinohara ,  Sachiko Tanabe

发明人： Yoshikazu Tanaka ,  Norio Chiba ,  Manabu Oumi ,  Masakazu Hirata ,  Yoko Shinohara ,  Sachiko Tanabe

IPC分类号： G11B5/706

CPC分类号： G11B5/65 ,  G11B5/746 ,  G11B5/855 ,  G11B2005/0021

摘要： A recording layer is formed on a substrate, and a high thermal conductor having a thermal conductivity higher than that of the recording layer is disposed inside a plurality of recording bit regions constituting the recording layer, respectively. Furthermore, the recording layer is formed with a separating portion which divides the recording layer into the plurality of recording bit regions. The separating layer is filled with a low thermal conductor having a thermal conductivity lower than that of the recording layer.

摘要翻译： 记录层形成在基板上，并且具有高于记录层的热导率的高导热体分别设置在构成记录层的多个记录位区内。 此外，记录层形成有将记录层分成多个记录位区域的分离部分。 分离层填充有热导率低于记录层的热传导率的低热导体。

公开(公告)号：US20120063277A1

公开(公告)日：2012-03-15

申请号：US13199954

申请日：2011-09-13

申请人： Masakazu Hirata ,  Manabu Oumi

发明人： Masakazu Hirata ,  Manabu Oumi

IPC分类号： G11B7/1387 ,  B23P11/00 ,  F21V8/00

CPC分类号： G11B5/314 ,  G11B5/3163 ,  G11B5/6088 ,  G11B2005/0021

摘要： A method of manufacturing the near-field light generating element includes a first cladding forming process of forming a first cladding on a substrate, a near-field light generation portion forming process of forming metal film base material on the first cladding, a core forming process of forming the core base material so as to cover the metal film base material, a patterning process of patterning the core base material and the metal film base material to form the core and the metal film, and a second cladding forming process of forming a second cladding so as to interpose the core between the second cladding and the first cladding, wherein, in the patterning process, the core base material and the metal film base material are collectively patterned by the same process.

摘要翻译： 一种制造近场光产生元件的方法包括在基片上形成第一包层的第一包层形成工艺，在第一包层上形成金属膜基材的近场光产生部分形成工艺，芯形成工艺 形成芯基材以覆盖金属膜基材，将芯基材和金属膜基材图案化以形成芯和金属膜的图案化工艺，以及形成第二包层形成工艺 包层以将芯插入第二包层和第一包层之间，其中，在图案化工艺中，芯基材和金属膜基材通过相同的工艺共同构图。

公开(公告)号：US07635437B2

公开(公告)日：2009-12-22

申请号：US11360278

申请日：2006-02-23

申请人： Masakazu Hirata ,  Manabu Oumi ,  Koichi Shibata

发明人： Masakazu Hirata ,  Manabu Oumi ,  Koichi Shibata

IPC分类号： B29D11/00 ,  B44C1/22

CPC分类号： G01Q60/22

摘要： A near field light generation element is manufactured by forming a truncated quadrangular pyramid on a substrate by forming an etching mask having a shape the same as but larger than that of a top face of the truncated quadrangular pyramid, and isotropic etching the substrate using the etching mask. Thereafter, metal films are formed on two opposite side faces of the truncated quadrangular pyramid by injecting a vacuum deposition source from a front of each of the faces and a direction parallel to the substrate.

摘要翻译： 通过形成具有与截顶的四棱锥的顶面相同但大的形状的蚀刻掩模，通过在基板上形成截顶四棱锥来制造近场光产生元件，并且使用蚀刻对基板进行各向同性蚀刻 面具。 此后，通过从每个面的前面和平行于衬底的方向注入真空沉积源，在截头四棱锥的两个相对的侧面上形成金属膜。

公开(公告)号：US07132055B2

公开(公告)日：2006-11-07

申请号：US10452533

申请日：2003-06-02

申请人： Masakazu Hirata ,  Manabu Oumi

发明人： Masakazu Hirata ,  Manabu Oumi

IPC分类号： B29D11/00

CPC分类号： G11B7/1387 ,  G11B7/122 ,  G11B7/22

摘要： In a method of producing a near field optical head, a transparent substrate has a surface and at least one protuberance extending from the surface. A shielding film is formed on the surface of the transparent substrate so that the shielding film covers the protuberance. A parent film for an air bearing surface is formed so as to cover the shielding film and the protuberance. A surface of the parent film is etched until an apex of the shielding film covering the protuberance and the surface of the parent film lie substantially on a common plane and the apex of the shielding film is exposed from the surface of the parent film while monitoring the existence/absence of an exposed portion of the apex. An optical aperture is formed at the apex of the shielding film by separately etching the shielding film using the parent film as a mask. The parent film is etched to form an air bearing surface.

摘要翻译： 在制造近场光学头的方法中，透明基板具有从表面延伸的表面和至少一个凸起。 在透明基板的表面上形成屏蔽膜，使屏蔽膜覆盖凸起。 形成用于空气轴承表面的母膜，以覆盖屏蔽膜和突起。 母膜的表面被蚀刻直到覆盖突起的屏蔽膜的顶点和母膜的表面基本上位于公共平面上，并且屏蔽膜的顶点从母膜的表面露出，同时监视母膜 存在/不存在顶点的暴露部分。 通过使用母膜作为掩模分开蚀刻屏蔽膜，在屏蔽膜的顶点处形成光学孔。 母膜被蚀刻以形成空气轴承表面。

公开(公告)号：US20120063278A1

公开(公告)日：2012-03-15

申请号：US13199955

申请日：2011-09-13

申请人： Masakazu Hirata ,  Norio Chiba ,  Manabu Oumi ,  Yoko Shinohara ,  Sachiko Tanabe ,  Yoshikazu Tanaka

发明人： Masakazu Hirata ,  Norio Chiba ,  Manabu Oumi ,  Yoko Shinohara ,  Sachiko Tanabe ,  Yoshikazu Tanaka

IPC分类号： G11B7/1387 ,  G11B7/22 ,  H01S3/08

CPC分类号： G11B5/3163 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A core includes a first core, and a second core covering a side surface of the first core, and is formed in a polygonal shape when viewed from a Z direction. A metal film is placed on a side surface in the core, and is formed so that a width of an interface between the metal film and the core is narrower than a width of the side surface of the core.

摘要翻译： 芯包括第一芯和覆盖第一芯的侧表面的第二芯，并且当从Z方向观察时形成为多边形。 金属膜放置在芯体的侧面上，并且形成为使得金属膜和芯之间的界面的宽度比芯的侧表面的宽度窄。

公开(公告)号：US20070034336A1

公开(公告)日：2007-02-15

申请号：US11583179

申请日：2006-10-19

申请人： Masakazu Hirata ,  Manabu Oumi

发明人： Masakazu Hirata ,  Manabu Oumi

IPC分类号： C23F1/00

CPC分类号： G11B7/1387 ,  G11B7/122 ,  G11B7/22

摘要： This invention provides a method of, and an apparatus for, producing a near field optical head that can control a height of an optical aperture or a protuberance and an air bearing surface. A substrate and a protuberance formed on the substrate are covered with a shielding film. The shielding film is covered with an parent film for air bearing having a thickness greater than the sum of a height of the protuberance and a thickness of the shielding film. When the parent film for air bearing is etched, the shielding film covering the protuberance is exposed. Etching is stopped as soon as exposure of the shielding film is detected. Since detection of the exposure of the shielding film can be made electrically, for example, a height difference between the aperture and the surface of the air bearing can be controlled highly precisely.

摘要翻译： 本发明提供一种用于制造可以控制光学孔或突起和空气轴承表面的高度的近场光学头的方法和装置。 形成在基板上的基板和突起被屏蔽膜覆盖。 屏蔽膜被覆盖有空气轴承的母膜，其厚度大于突起的高度和屏蔽膜的厚度之和。 当用于空气轴承的母膜被蚀刻时，覆盖突起的屏蔽膜被暴露。 一旦检测到屏蔽膜的曝光，就会停止蚀刻。 由于可以电气地检测遮蔽膜的曝光，所以可以高精度地控制孔径与空气轴承的表面之间的高度差。

公开(公告)号：US20060261177A1

公开(公告)日：2006-11-23

申请号：US11360278

申请日：2006-02-23

申请人： Masakazu Hirata ,  Manabu Oumi ,  Koichi Shibata

发明人： Masakazu Hirata ,  Manabu Oumi ,  Koichi Shibata

IPC分类号： A01G25/09 ,  B05B17/04

CPC分类号： G01Q60/22

摘要： In order to provide a method of manufacturing a bow tie antenna by using a photolithography of a comparatively low level, a truncated quadrangular pyramid is formed by forming on a substrate an etching mask of a shape similar to a top face of the truncated quadrangular pyramid, and isotropy-etching the substrate with the etching mask being made a mask material. Thereafter, metal films are formed on two opposite side faces of the truncated quadrangular pyramid by injecting a vacuum deposition source from a front of each of the faces and a direction parallel to the substrate.

摘要翻译： 为了提供通过使用相对较低水平的光刻制造弓形领带天线的方法，通过在基板上形成类似于截头四棱锥顶面的蚀刻掩模来形成截顶四棱锥， 并且将蚀刻掩模制成掩模材料进行各向同性蚀刻。 此后，通过从每个面的前面和平行于衬底的方向注入真空沉积源，在截头四棱锥的两个相对的侧面上形成金属膜。

公开(公告)号：US08945733B2

公开(公告)日：2015-02-03

申请号：US13421929

申请日：2012-03-16

申请人： Yoshikazu Tanaka ,  Norio Chiba ,  Manabu Oumi ,  Masakazu Hirata ,  Yoko Shinohara ,  Sachiko Tanabe

发明人： Yoshikazu Tanaka ,  Norio Chiba ,  Manabu Oumi ,  Masakazu Hirata ,  Yoko Shinohara ,  Sachiko Tanabe

IPC分类号： G11B5/66 ,  G11B5/65 ,  G11B5/74 ,  G11B5/855 ,  G11B5/00

CPC分类号： G11B5/65 ,  G11B5/746 ,  G11B5/855 ,  G11B2005/0021

摘要： A magnetic recording medium in which information can be recorded using a heat-assisted magnetic recording method comprises a recording layer formed on a substrate. The recording layer has a plurality of magnetic recording bit regions and a plurality of high thermal conductors each extending inside a corresponding one of the bit regions. The high thermal conductors have a thermal conductivity higher than that of the recording layer and assist in dissipating heat energy imparted to the bit regions during the recording of information.

摘要翻译： 可以使用热辅助磁记录方法记录信息的磁记录介质包括形成在基板上的记录层。 记录层具有多个磁记录位区域和多个高热导体，每个高热导体在对应的一个位区域内延伸。 高导热体的热导率高于记录层的热导率，有助于在记录信息期间耗散赋予钻头区域的热能。

公开(公告)号：US08787127B2

公开(公告)日：2014-07-22

申请号：US13199955

申请日：2011-09-13

申请人： Masakazu Hirata ,  Norio Chiba ,  Manabu Oumi ,  Yoko Shinohara ,  Sachiko Tanabe ,  Yoshikazu Tanaka

发明人： Masakazu Hirata ,  Norio Chiba ,  Manabu Oumi ,  Yoko Shinohara ,  Sachiko Tanabe ,  Yoshikazu Tanaka

IPC分类号： G11B5/02

CPC分类号： G11B5/3163 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

摘要： A near-field light generating element has a core that propagates light flux from a light incident side to a light emission side while focusing the propagating light flux. A near-field light generating portion in the form of a metal film generates near-field light from the light flux. The core includes a first core, and a second core covering a side surface of the first core, and the core is formed in a polygonal shape when viewed from a Z direction. The metal film is placed on a side surface in the core, and is formed so that a width of an interface between the metal film and the core is narrower than a width of the side surface of the core.

摘要翻译： 近场光产生元件具有将来自光入射侧的光束传播到发光侧的核，同时聚焦传播光束。 金属膜形式的近场光产生部分产生来自光通量的近场光。 芯包括第一芯和覆盖第一芯的侧表面的第二芯，并且当从Z方向观察时，芯形成为多边形。 金属膜被放置在芯的侧表面上，并且形成为使得金属膜和芯之间的界面的宽度比芯的侧表面的宽度窄。