公开(公告)号：US20090316309A1

公开(公告)日：2009-12-24

申请号：US12141509

申请日：2008-06-18

申请人： Charles C. Partee ,  John P. Nibarger

发明人： Charles C. Partee ,  John P. Nibarger

IPC分类号： G11B5/33 ,  G11B5/127

CPC分类号： G11B5/3958 ,  G11B5/00878

摘要： A magneto-resistive (MR) device for reading at least one of a legacy data signal and a present data signal magnetically recorded on at least one legacy track and a least one present track, respectively, is provided. The device comprises first and second MR elements, and first, second, and third permanent magnets. The first MR read element is positioned between the first and the second permanent magnets to stabilize the first MR read element while reading the legacy data signal from the media. The second MR element is positioned adjacent to the second permanent magnet and configured to read the present data signal from the media. The third permanent magnet is positioned adjacent to the second MR element and opposite to the second permanent magnet. The second and the third permanent magnets cooperate with each other to stabilize the second MR read element while reading the present data signal from the media.

摘要翻译： 提供了一种磁阻（MR）装置，用于分别读取磁性地记录在至少一个传统磁道和至少一个当前磁道上的传统数据信号和当前数据信号中的至少一个。 该装置包括第一和第二MR元件以及第一，第二和第三永磁体。 第一MR读取元件位于第一和第二永磁体之间，以便在从介质读取传统数据信号的同时稳定第一MR读取元件。 第二MR元件被定位成与第二永磁体相邻并被配置为从介质读取当前数据信号。 第三永久磁铁定位成与第二MR元件相邻并与第二永久磁铁相对。 第二和第三永磁体彼此协作以在从介质读取当前数据信号的同时稳定第二MR读取元件。

公开(公告)号：US07474513B1

公开(公告)日：2009-01-06

申请号：US11169387

申请日：2005-06-29

申请人： John P. Nibarger ,  Richard H. Dee

发明人： John P. Nibarger ,  Richard H. Dee

IPC分类号： G11B5/39

CPC分类号： G11B5/40 ,  B82Y10/00 ,  B82Y25/00 ,  G11B5/3906 ,  G11B5/3909 ,  G11B2005/3996

摘要： A magneto-resistive (MR) transducer is capable of reading data signals magnetically recorded on a tape. The transducer includes a head-tape interface (HTI) and a MR sensor adjacent to the HTI. An electro-static discharge (ESD) element is coupled to the MR sensor, which is adapted to provide an electrical path from the MR sensor to a lower potential structure.

摘要翻译： 磁阻（MR）传感器能够读取磁性记录在磁带上的数据信号。 换能器包括头带接口（HTI）和邻近HTI的MR传感器。 静电放电（ESD）元件耦合到MR传感器，其适于提供从MR传感器到较低电位结构的电路径。

公开(公告)号：US20080285181A1

公开(公告)日：2008-11-20

申请号：US12133454

申请日：2008-06-05

申请人： John P. Nibarger ,  Herbert House

发明人： John P. Nibarger ,  Herbert House

IPC分类号： G11B5/33

CPC分类号： G11B5/3106 ,  G11B5/00817 ,  G11B5/398 ,  G11B5/40 ,  Y10T29/49032 ,  Y10T29/49043 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052

摘要： A method for providing a giant magneto-resistive (GMR) sensor for use in sensing magnetic flux is provided. The method comprises positioning a layer of Cu material between first and second layers of a specified ferromagnetic material. The respective end surfaces of the Cu layer and the first and second layers are initially located in a common plane and in a co-planar relationship with one another. The method further comprises removing an amount of material from the copper layer to form a new end surface thereof that is selectively spaced apart from the common plane and applying a protective coating to the new end surface of the Cu layer to inhibit corrosion of the Cu layer.

摘要翻译： 提供了一种用于提供用于感测磁通量的巨磁阻（GMR）传感器的方法。 该方法包括将Cu材料层定位在特定铁磁材料的第一和第二层之间。 Cu层和第一层和第二层的相应端面最初位于公共平面中并且彼此处于共面关系。 该方法还包括从铜层去除一定量的材料以形成与公共平面选择性间隔的新的端面，并向Cu层的新端面施加保护涂层以抑制Cu层的腐蚀 。

公开(公告)号：US20080266711A1

公开(公告)日：2008-10-30

申请号：US11740991

申请日：2007-04-27

申请人： John P. Nibarger ,  Kevin D. McKinstry

发明人： John P. Nibarger ,  Kevin D. McKinstry

IPC分类号： G11B15/60 ,  G11B5/127

CPC分类号： G11B5/00821 ,  G11B5/40 ,  G11B15/60

摘要： A tape head for use with a magnetic tape includes a support structure that has a tape bearing surface that is configured to engage the magnetic tape as the magnetic tape passes over the support structure. The support structure is made of a first material having a first hardness. The tape head further includes a transducer element having an interface surface for reading from and/or writing to the magnetic tape as the magnetic tape passes over the tape bearing surface. The tape head also includes a protective layer that substantially covers the interface surface, the protective layer being made of a second material having a second hardness that is at least as hard as the first hardness of the first material.

摘要翻译： 用于磁带的磁带头包括支撑结构，该支撑结构具有带状表面，该磁带轴承表面构造成当磁带通过支撑结构时与磁带接合。 支撑结构由具有第一硬度的第一材料制成。 带磁头还包括一个换能器元件，当磁带通过磁带支承表面时，具有用于从磁带读取和/或写入磁带的接口表面。 带头还包括基本覆盖界面表面的保护层，保护层由具有至少与第一材料的第一硬度一样硬度的第二硬度的第二材料制成。

公开(公告)号：US07382585B1

公开(公告)日：2008-06-03

申请号：US11241343

申请日：2005-09-30

申请人： John P. Nibarger ,  Francis X. Campos ,  Larry E. Daby

发明人： John P. Nibarger ,  Francis X. Campos ,  Larry E. Daby

IPC分类号： G11B5/33

CPC分类号： G11B5/39 ,  G11B5/00878 ,  G11B5/3948 ,  G11B5/397 ,  G11B5/398

摘要： A magnetic head for writing data to and reading data from a magnetic recording medium includes an inductive-type writer, an anisotropic magneto-resistive (AMR) reader, and a giant magneto-resistive (GMR) reader. The AMR reader is used to read data from “high magnetic flux” recording mediums which have been recorded for use with AMR sensors. The GMR reader is used to read data from “low magnetic flux” recording mediums which have been recorded for use with GMR sensors. As such, the magnetic head provides for backward compatibility between the previously prevalent “high magnetic flux” recording mediums and the expected future prevalent “low magnetic flux” recording mediums. The magnetic head may be configured such that the writer and the AMR and GMR readers share sensor shields in various configurations in order to carry out their writing and reading functions.

摘要翻译： 用于将数据写入和从磁记录介质读取数据的磁头包括电感式写入器，各向异性磁阻（AMR）读取器和巨磁阻（GMR）读取器。 AMR读卡器用于从AMR传感器使用的“高磁通量”记录介质中读取数据。 GMR读取器用于读取已记录用于GMR传感器的“低磁通量”记录介质中的数据。 因此，磁头提供了先前普遍存在的“高磁通”记录介质与预期的未来普遍的“低磁通”记录介质之间的向后兼容性。 磁头可以被配置为使得写入器和AMR和GMR读取器共享各种配置的传感器屏蔽，以便执行其写入和读取功能。