公开(公告)号：US20060154110A1

公开(公告)日：2006-07-13

申请号：US11033936

申请日：2005-01-12

申请人： Julius Hohlfeld ,  Yukiko Kubota ,  Dieter Weller ,  Stanko Brankovic ,  Xiaomin Yang ,  Earl Johns

发明人： Julius Hohlfeld ,  Yukiko Kubota ,  Dieter Weller ,  Stanko Brankovic ,  Xiaomin Yang ,  Earl Johns

IPC分类号： G11B5/66

CPC分类号： B82Y10/00 ,  G11B5/743 ,  G11B5/855 ,  G11B2005/0021

摘要： Patterned thin films comprise regions of relatively low thermal conductivity material separated by regions of relatively high thermal conductivity material. The low thermal conductivity regions may be provided in the form of cylinders or cuboids which are arranged in a continuous matrix of the high thermal conductivity material. The thin film may be used as thermal control layers in data recording media such as heat assisted magnetic recording media.

公开(公告)号：US20070026263A1

公开(公告)日：2007-02-01

申请号：US11189663

申请日：2005-07-26

申请人： Yukiko Kubota ,  Bin Lu ,  Jai-Young Kim ,  Julius Hohlfeld

发明人： Yukiko Kubota ,  Bin Lu ,  Jai-Young Kim ,  Julius Hohlfeld

IPC分类号： G11B5/66

CPC分类号： G11B5/732 ,  G11B5/65 ,  G11B5/7325

摘要： Metal alloy heatsink films for magnetic recording media are disclosed. The metal alloy heatsink films possess both high thermal conductivity and improved mechanical properties such as relatively high hardness. The metal alloy heatsink films also have controlled microstructures which are compatible with subsequently deposited crystalline magnetic recording layers. The films may comprise single phase CuZr or AgPd alloys having a selected crystal structure and orientation. The combination of high thermal conductivity, good mechanical properties and controlled microstructures makes the metal alloy heatsink films suitable for various applications including heat assisted magnetic recording systems.

摘要翻译： 公开了用于磁记录介质的金属合金散热片。 金属合金散热片具有高导热性和改善的机械性能，例如相对较高的硬度。 金属合金散热片也具有与随后沉积的结晶磁记录层相容的受控微结构。 膜可以包括具有选定晶体结构和取向的单相CuZr或AgPd合金。 高导热性，良好的机械性能和可控微结构的组合使得金属合金散热片适用于各种应用，包括热辅助磁记录系统。

公开(公告)号：US07869309B2

公开(公告)日：2011-01-11

申请号：US11201662

申请日：2005-08-11

申请人： Christophe Daniel Mihalcea ,  William Albert Challener ,  Werner Scholz ,  Kalman Pelhos ,  Dorothea Buechel ,  Julius Hohlfeld ,  Nils Jan Gokemeijer

发明人： Christophe Daniel Mihalcea ,  William Albert Challener ,  Werner Scholz ,  Kalman Pelhos ,  Dorothea Buechel ,  Julius Hohlfeld ,  Nils Jan Gokemeijer

IPC分类号： G11B11/00

CPC分类号： G11B5/1272 ,  G11B5/314 ,  G11B2005/001 ,  G11B2005/0021

摘要： An apparatus comprises a waveguide, an optical transducer for coupling electromagnetic radiation from the waveguide to a point adjacent to an air bearing surface to heat a portion of a storage medium, and a first wire positioned adjacent to the air bearing surface, wherein current in the wire produces a magnetic field in the heated portion of the storage medium.

摘要翻译： 一种装置包括波导，用于将来自波导的电磁辐射耦合到与空气轴承表面相邻的点以加热存储介质的一部分的光学换能器，以及邻近空气轴承表面定位的第一线，其中， 线在存储介质的加热部分中产生磁场。

公开(公告)号：US20070036040A1

公开(公告)日：2007-02-15

申请号：US11201662

申请日：2005-08-11

申请人： Christophe Mihalcea ,  William Challener ,  Werner Scholz ,  Kalman Pelhos ,  Dorothea Buechel ,  Julius Hohlfeld ,  Nils Gokemeijer

发明人： Christophe Mihalcea ,  William Challener ,  Werner Scholz ,  Kalman Pelhos ,  Dorothea Buechel ,  Julius Hohlfeld ,  Nils Gokemeijer

IPC分类号： G11B11/00

CPC分类号： G11B5/1272 ,  G11B5/314 ,  G11B2005/001 ,  G11B2005/0021

摘要： An apparatus comprises a waveguide, an optical transducer for coupling electromagnetic radiation from the waveguide to a point adjacent to an air bearing surface to heat a portion of a storage medium, and a first wire positioned adjacent to the air bearing surface, wherein current in the wire produces a magnetic field in the heated portion of the storage medium.

摘要翻译： 一种装置包括波导，用于将来自波导的电磁辐射耦合到与空气轴承表面相邻的点以加热存储介质的一部分的光学换能器，以及邻近空气轴承表面定位的第一线，其中， 线在存储介质的加热部分中产生磁场。

公开(公告)号：US20050041950A1

公开(公告)日：2005-02-24

申请号：US10945077

申请日：2004-09-20

申请人： Robert Rottmayer ,  Julius Hohlfeld ,  William Challener ,  Chubing Peng ,  Edward Gage

发明人： Robert Rottmayer ,  Julius Hohlfeld ,  William Challener ,  Chubing Peng ,  Edward Gage

IPC分类号： G11B5/00 ,  G11B5/012 ,  G11B5/127 ,  G02B6/00

CPC分类号： G11B5/127 ,  G11B5/012 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0005 ,  G11B2005/0021

摘要： A transducer comprises a conductive pin and a waveguide for directing electromagnetic radiation onto the pin, wherein the pin is configured to create a rectangular flat top field distribution at a surface of a storage medium positioned adjacent to an end of the pin, leading to a flat top thermal profile within the storage medium. A second pin can be included in the transducer. Recording heads that include the transducer, disc drives that include the recording head, and a method of heating a portion of a storage medium that is performed by the recording head, are also included.

摘要翻译： 传感器包括导电引脚和用于将电磁辐射引导到引脚上的波导，其中所述引脚被配置为在邻近销的端部定位的存储介质的表面处产生矩形平坦顶部场分布，导致平坦 存储介质中的顶部热分布。 传感器中可以包括第二个引脚。 还包括包括换能器的记录头，包括记录头的盘驱动器和加热由记录头执行的存储介质的一部分的方法。

公开(公告)号：US20080037171A1

公开(公告)日：2008-02-14

申请号：US11500625

申请日：2006-08-08

申请人： Sonali Mukherjee ,  Julius Hohlfeld ,  Bin Lu ,  Dieter K. Weller

发明人： Sonali Mukherjee ,  Julius Hohlfeld ,  Bin Lu ,  Dieter K. Weller

IPC分类号： G11B5/74 ,  G11B5/64

CPC分类号： G11B5/64 ,  G11B5/1278 ,  G11B2005/0021

摘要： A data storage medium for perpendicular recording has a substrate and a ferromagnetic layer on the substrate for storing data bits. The ferromagnetic layer has a plurality of elongate grains of magnetizable material extending perpendicular to the substrate which form magnetic domains representative of data. Each magnetic domain is separated from adjacent magnetic domains by a bit edge domain wall region. Each elongate grain has a perpendicular height that is greater than a width of the bit edge domain wall region.

摘要翻译： 用于垂直记录的数据存储介质在衬底上具有用于存储数据位的衬底和铁磁层。 铁磁层具有垂直于衬底延伸的多个可磁化材料的细长晶粒，其形成代表数据的磁畴。 每个磁畴通过位边缘域壁区域与相邻的磁畴分离。 每个细长的颗粒具有大于位边缘畴壁区域的宽度的垂直高度。