公开(公告)号：US5870260A

公开(公告)日：1999-02-09

申请号：US862415

申请日：1997-05-23

Applicant: David H. Davies ,  Thomas M. Coughlin ,  Beverley R. Gooch

Inventor： David H. Davies ,  Thomas M. Coughlin ,  Beverley R. Gooch

IPC: G11B5/66 ,  G11B5/00 ,  G11B5/012 ,  G11B5/03 ,  G11B5/187 ,  G11B5/23 ,  G11B5/39 ,  G11B5/48 ,  G11B5/65 ,  G11B5/667 ,  G11B19/02 ,  G11B5/33

CPC classification number: G11B5/3919 ,  G11B19/02 ,  G11B5/00 ,  G11B5/012 ,  G11B5/39 ,  G11B5/3903 ,  G11B5/488 ,  G11B2005/0034 ,  G11B5/03 ,  G11B5/1878 ,  G11B5/3922

Abstract: A magnetic storage system is disclosed that includes a magnetic storage layer associated with a soft magnetic saturable keeper layer. A transducer is spaced from the storage layer and the keeper layer in flying relationship thereto, with an MR element contained therein to provide high sensitivity detection along with the reduced spacing loss available from the keepered storage layer.

Abstract translation: 公开了一种磁存储系统，其包括与软磁可饱和保持层相关联的磁存储层。 传感器与存储层和保持层间隔开，其中包含MR元件以提供高灵敏度检测以及从保留存储层可用的减小的间隔损耗。

公开(公告)号：US5227939A

公开(公告)日：1993-07-13

申请号：US31713

申请日：1987-03-27

Applicant: Beverley R. Gooch

Inventor： Beverley R. Gooch

IPC: G01R33/00 ,  G11B5/00 ,  G11B5/127 ,  G11B5/187 ,  G11B5/245 ,  G11B5/49 ,  G11B5/53 ,  G11B5/588

CPC classification number: G11B5/00 ,  G01R33/00 ,  G11B5/127 ,  G11B5/187 ,  G11B5/245 ,  G11B5/2452 ,  G11B5/4907 ,  G11B5/4969 ,  G11B5/53 ,  G11B5/588

Abstract: A preferred embodiment of an electromagnetically controlled scanning magnetic transducer is described having two confronting core poles defining a physical transducing gap therebetween. A control winding is associated with each core pole. A control current applied to each control winding selectively saturates a portion of each core pole facing a record medium. Each saturated face portion defines an adjacent unsaturated highly permeable face portion. The highly permeable face portions of each core pole overlap across the gap to define a transducing zone. The information signal and control windings are arranged relative to one another to obtain information signal and control flux paths extending perpendicular to one another.

Abstract translation: 描述了一种电磁控制的扫描磁换能器的优选实施例，其具有在它们之间限定物理换能间隙的两个相对的芯极。 控制绕组与每个磁芯相连。 施加到每个控制绕组的控制电流选择性地使面对记录介质的每个芯极的一部分饱和。 每个饱和面部分限定相邻的不可渗透的面部部分。 每个芯柱的高度可渗透的面部分跨越间隙重叠以限定换能区。 信息信号和控制绕组相对于彼此布置以获得彼此垂直延伸的信息信号和控制磁通路径。

公开(公告)号：US4170059A

公开(公告)日：1979-10-09

申请号：US885834

申请日：1978-03-13

Applicant: Beverley R. Gooch

Inventor： Beverley R. Gooch

IPC: G11B5/133 ,  G11B5/187 ,  G11B5/42

CPC classification number: G11B5/133 ,  G11B5/1871 ,  Y10T29/49048 ,  Y10T29/49057

Abstract: A transducer core comprises a magnetic core superposed and integrally joined with a supporting composite body. The magnetic core has poles defining at least one nonmagnetic gap therebetween. The composite body has a nonmagnetic front portion spanning the nonmagnetic gap of the superposed magnetic core and a contiguous magnetic back portion. The superposed magnetic core and composite body are provided with overlapping grooves forming a window adapted to receive transducer windings.

Abstract translation: 换能器芯包括叠置并与支撑复合体一体连接的磁芯。 磁芯具有限定其间的至少一个非磁性间隙的极。 复合体具有横跨叠加的磁芯的非磁性间隙的非磁性前部和连续的磁性后部。 重叠的磁芯和复合体设置有形成适于接收换能器绕组的窗口的重叠凹槽。

公开(公告)号：US5843565A

公开(公告)日：1998-12-01

申请号：US742135

申请日：1996-10-31

Applicant: David H. Davies ,  Thomas M. Coughlin ,  Beverley R. Gooch

Inventor： David H. Davies ,  Thomas M. Coughlin ,  Beverley R. Gooch

IPC: G11B5/667 ,  G11B5/712 ,  G11B5/716 ,  G11B5/66 ,  B32B7/02

CPC classification number: G11B5/712 ,  G11B5/716 ,  Y10S428/90 ,  Y10T428/12465 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/265 ,  Y10T428/2991

Abstract: The flexible, particulate magnetic storage medium includes a substrate and a magnetic storage layer of hard magnetic particles held within a binder. The flexible, particulate magnetic storage medium also includes a soft magnetic keeper layer. The soft magnetic keeper layer may be established by coating the individual hard magnetic particles of the magnetic storage layer with a layer of soft magnetic material to establish a "keeper layer" around each particle. A break layer of non-magnetic material may be provided between the hard and soft layers. The individual particles are coated by methods such as in situ precipitation. The soft magnetic layer may also be established by providing a separate layer of soft magnetic material within a binder of cross linkable resins. The resulting flexible, particulate magnetic storage medium is a laminate principally comprising a substrate, a first layer of hard magnetic particles within a binder, and a second layer of soft magnetic particles also within a binder. The laminate medium may be produced through extrusion of binder particle mixes through multi aperture slot die extensions. The flexible, particulate magnetic media may be used in tape or flexible disc formats.

Abstract translation: 柔性颗粒磁性存储介质包括基材和保持在粘合剂内的硬磁性颗粒的磁存储层。 柔性颗粒磁存储介质还包括软磁保持层。 可以通过用磁性材料层涂覆磁存储层的各个硬磁性颗粒以在每个颗粒周围建立“保持层”来建立软磁性层。 可以在硬层和软层之间提供非磁性材料的断裂层。 通过诸如原位沉淀的方法涂覆各个颗粒。 也可以通过在可交联树脂的粘合剂内提供单独的软磁性材料层来建立软磁性层。 所得到的柔性颗粒状磁性存储介质是主要包括基底，粘合剂内的第一层硬磁性颗粒和粘结剂内的软磁性颗粒的第二层的层压体。 层压介质可以通过粘合剂颗粒混合物通过多孔隙槽模延伸而挤出来生产。 灵活的微粒磁性介质可以以磁带或软盘形式使用。

公开(公告)号：US5130876A

公开(公告)日：1992-07-14

申请号：US449195

申请日：1989-12-08

Applicant: Beverley R. Gooch

Inventor： Beverley R. Gooch

IPC: G11B5/39 ,  G11B5/245 ,  G11B5/33 ,  G11B5/335 ,  G11B5/49

CPC classification number: G11B5/335 ,  G11B5/245 ,  G11B5/332 ,  G11B5/4907

Abstract: A magnetic transducer arrangement includes a core with a gap and a body of magnetically anisotropic material in which a signal transfer region is defined. Control flux flows across the gap of the core and through the body in opposite directions. The two oppositely directed flux flows influence one another and tend to cancel each other to define a null zone. This null zone, in which the flow of control flux is very low, is sensitive to flux emanating from an adjacent magnetic storage medium and therefore defines the signal transfer region. By varying the relative proportions of control flux flowing in the opposite directions, the location of the null zone can be varied along the width of the magnetic transducer to thereby scan the signal transfer region. The flux which is coupled from the magnetic storage medium into the null zone of the body does not flow through the magnetic core in a manner similar to a fringing flux. Rather, this flux is used to modulate a reference flux, and this modulation is detected to reproduce the recorded information. In a recording mode, information flux reduces the permeability of the signal transfer region, causing the flux to fringe from the body and be coupled into the storage medium.

公开(公告)号：US5119255A

公开(公告)日：1992-06-02

申请号：US829592

申请日：1986-02-13

Applicant: Beverley R. Gooch

Inventor： Beverley R. Gooch

IPC: G01R33/00 ,  G11B5/00 ,  G11B5/127 ,  G11B5/187 ,  G11B5/245 ,  G11B5/49 ,  G11B5/53 ,  G11B5/588

CPC classification number: G11B5/53 ,  G01R33/00 ,  G11B5/00 ,  G11B5/127 ,  G11B5/187 ,  G11B5/245 ,  G11B5/2452 ,  G11B5/4907 ,  G11B5/588

Abstract: An electromagnetically controlled scanning magnetic transducer has two magnetic core portions with confronting poles defining a transducing gap. A control winding is arranged in each core portion to provide a control flux therein. The control flux saturates a region of the transducer face of each core portion, adjacent to the gap. The saturated regions define adjacent unsaturated highly permeable regions which overlap at the gap to obtain a transducing zone. The transducing zone can be altered, moved, scanned or otherwise positioned along the transducer width by electromagnetically controlling the location and size of the saturated face regions.

Abstract translation: 电磁控制的扫描磁换能器具有两个具有限定换能间隙的相对磁极的磁芯部分。 控制绕组布置在每个芯部分中以在其中提供控制通量。 控制通量饱和每个芯部分的与该间隙相邻的换能器面的区域。 饱和区域限定在间隙处重叠的邻近的不可渗透的高渗透性区域以获得换能区域。 通过电磁控制饱和面部区域的位置和尺寸，可以沿换能器宽度改变，移动，扫描或以其他方式定位换能区。

公开(公告)号：US5016342A

公开(公告)日：1991-05-21

申请号：US373762

申请日：1989-06-30

Applicant: Raghavan K. Pisharody ,  Beverley R. Gooch

Inventor： Raghavan K. Pisharody ,  Beverley R. Gooch

IPC: G11B5/31 ,  G11B5/53

CPC classification number: G11B5/3183 ,  G11B5/31 ,  G11B5/3103 ,  G11B5/3116 ,  G11B5/313 ,  G11B5/3163 ,  G11B5/531 ,  Y10T29/49046 ,  Y10T29/49064

Abstract: An ultra small track width magnetic transducer and manufacturing method. The transducer has two coplanar confronting magnetic poles provided by a thin film layer of magnetic material. The thickness of the layer defines a track width. A transducing gap is etched in the magnetic layer by utilizing focused ion beam milling technology. The thusly obtained gap has a predetermined length and depth and it separates the magnetic layer into two confronting coplaner magnetic poles. A layer of non-magnetic material is deposited over the magnetic layer to fill the transducing gap. The transducing gap may be etched in a plane extending orthogonally to the plane of the magnetic core layer. Alternatively, the transducing gap plane may extend at an oblique angle to the magnetic core layer to obtain a transducing gap useful in aszimuth recording/playback.

Abstract translation: 超小轨道磁传感器及其制造方法。 传感器具有由磁性材料的薄膜层提供的两个共面的面对磁极。 层的厚度限定轨道宽度。 通过利用聚焦离子束铣削技术在磁性层中蚀刻换能间隙。 由此获得的间隙具有预定的长度和深度，并且将磁性层分成两个面对的共平面磁极。 在磁性层上沉积一层非磁性材料以填充换能间隙。 可以在与磁芯层的平面垂直延伸的平面中蚀刻换能间隙。 或者，换能间隙平面可以以与磁芯层倾斜的角度延伸，以获得在磁盘记录/重放中有用的换能间隙。

公开(公告)号：US5830590A

公开(公告)日：1998-11-03

申请号：US674768

申请日：1996-06-28

Applicant: Beverley R. Gooch ,  Thomas M. Coughlin ,  David H. Davies

Inventor： Beverley R. Gooch ,  Thomas M. Coughlin ,  David H. Davies

IPC: G11B5/00 ,  G11B5/012 ,  G11B5/02 ,  G11B5/03 ,  G11B5/49 ,  G11B5/65 ,  G11B5/66 ,  G11B5/667 ,  G11B5/70

CPC classification number: G11B5/66 ,  G11B5/00 ,  G11B5/012 ,  G11B2005/0034 ,  G11B5/03 ,  G11B5/4907

Abstract: A magnetic storage system includes a magnetic storage medium comprising a keeper layer of relatively low permeability soft magnetic material deposited upon a magnetic storage layer or between multiple magnetic storage layers. The low permeability keeper layer may be disposed either above or below the magnetic storage layer. In the unsaturated state, the keeper layer acts as a shunt path for flux emanating from recorded transitions on the magnetic storage layer, producing an image field of the recorded transitions in the keeper. This shunt path prevents signal flux emanating from the recorded transitions from reaching the head. To read data from a recorded transition on the magnetic storage layer, a bias current is applied to windings of the head, creating a bias flux which saturates a portion of the keeper layer. Once saturated, this portion of the keeper can no longer shunt flux emanating from the recorded transition, which is the region represented by the head reproduce transducer.

Abstract translation: 磁存储系统包括磁存储介质，磁存储介质包括沉积在磁存储层上或多个磁存储层之间的相对低磁导率软磁材料的保持层。 低渗透性保持层可以设置在磁性存储层的上方或下方。 在不饱和状态下，保持层用作从存储层上的记录跃迁发出的磁通的分流路径，从而产生保持器中记录的转变的图像场。 该分流路径防止从记录的转变发出的信号通量到达头部。 为了从磁存储层上记录的转换中读取数据，偏置电流施加到磁头的绕组，产生使保持层的一部分饱和的偏置磁通。 一旦饱和，保持器的该部分不再能够分离从由磁头再现传感器表示的区域的记录转变发出的磁通。

公开(公告)号：US5826326A

公开(公告)日：1998-10-27

申请号：US485522

申请日：1995-06-07

Applicant: Beverley R. Gooch ,  Rex Niedermeyer

Inventor： Beverley R. Gooch ,  Rex Niedermeyer

IPC: G11B5/10 ,  G11B5/127 ,  G11B5/17 ,  G11B5/23 ,  G11B5/235 ,  G11B5/255 ,  H01F7/06

CPC classification number: G11B5/10 ,  G11B5/1274 ,  G11B5/1276 ,  G11B5/17 ,  G11B5/255 ,  G11B5/1272 ,  G11B5/232 ,  G11B5/235 ,  Y10T29/49043

Abstract: A magnetic transducer is batch fabricated from a pair of confronting elongate composite block substrates each formed of a thin cap of non-magnetic material bonded to a much larger block of magnetic material, such as ferrite. An intermediate winding groove is formed in proximate relation to the non-magnetic material along the length of one or both composite block substrates. One (or both) of the substrates is provided with a plurality of parallel spaced V-shaped grooves oriented in a direction perpendicular to the winding groove, wherein adjacent grooves form therebetween track width defining lands. A core layer of high permeability magnetic material, such as Alfesil material, is deposited over the edges whereby magnetic poles are formed of the edges. A gap layer of insulating material is deposited on the edges over the high permeability magnetic material. Two of the composite block substrates are placed with the edges in aligned abutting relation and are assembled by glass bonding. Individual transducers are sliced from the bonded assembly of substrates and are lapped and polished and a coil is added to provide the finished transducers. Alternative embodiments may employ winding and V-shaped grooves in only one composite block substrate with the matching substrate being flat, and/or may employ either rectangular solid or wedge-shaped non-magnetic caps bonded to the ferrite blocks.

Abstract translation: 磁传感器由一对相对的细长复合块基片批量制造，每个相对的细长复合阻挡基片由非磁性材料薄盖结合到较大的磁性材料块如铁素体上。 中间卷绕槽沿着一个或两个复合块基板的长度与非磁性材料邻接地形成。 一个（或两个）基板设置有沿垂直于卷绕槽的方向定向的多个平行隔开的V形槽，其中相邻的槽形成在其间的轨道宽度限定区域。 高磁导率磁性材料的芯层如Alfesil材料沉积在边缘上，由此由边缘形成磁极。 绝缘材料的间隙层沉积在高磁导率磁性材料上的边缘上。 两个复合块基材以边缘对齐的邻接关系放置，并通过玻璃粘合装配。 单独的换能器从基底的结合组件切片并且被研磨和抛光，并且添加线圈以提供完成的换能器。 替代实施例可以在仅一个复合块基板中采用绕组和V形槽，匹配衬底是平坦的，和/或可以采用与铁氧体块结合的矩形固体或楔形非磁性帽。

公开(公告)号：US5774311A

公开(公告)日：1998-06-30

申请号：US822884

申请日：1997-03-24

Applicant: Beverley R. Gooch

Inventor： Beverley R. Gooch

IPC: G11B5/10 ,  G11B5/105 ,  G11B5/127 ,  G11B5/17 ,  G11B5/23 ,  G11B5/235

CPC classification number: G11B5/10 ,  G11B5/105 ,  G11B5/127 ,  G11B5/1272 ,  G11B5/17 ,  G11B5/235

Abstract: A head having very low leakage flux loss since the head is constructed with a very small elongate magnetic intercore, having a winding window formed therein if desired, with the intercore being supported on either side by non-magnetic side support blocks. The side support blocks enable mounting of the head to the usual style of head block and provide the physical structure and size necessary for formation of a low wear head profile, if desired.

Abstract translation: 头部具有非常低的漏磁通损失，因为磁头由非常小的细长磁芯构成，如果需要，其上形成有绕组窗口，其中铁芯由非磁性侧支撑块在任一侧支撑。 侧支撑块能够将头部安装到通常的头部块体的形式，并且如果需要，则提供形成低磨损头部轮廓所需的物理结构和尺寸。