公开(公告)号：US20040234817A1

公开(公告)日：2004-11-25

申请号：US10441419

申请日：2003-05-19

Applicant: Imation Corp.

Inventor： Bruce H. Edwards

IPC: B32B005/16

CPC classification number: G11B5/70 ,  G11B5/7021 ,  G11B5/7023 ,  G11B5/714 ,  G11B5/735 ,  G11B5/738 ,  Y10T428/25 ,  Y10T428/257

Abstract: A dual-layer magnetic recording medium including a non-magnetic substrate having a front side and a back side, a lower support layer formed over the front side and a magnetic upper recording layer formed over the lower layer, wherein the magnetic layer contains a volume concentration of at least about 35% of a magnetic metallic particulate pigment having a coercivity of at least about 2000 Oersteds (Oe), and a binder system for the pigment. The magnetic recording medium exhibits an orientation ratio greater than 2.0, a pulsewidth (PW50) value of less than about 500 nm, and a remanence-thickness product, Mr*t, of less than about 5.0 memu/cm2.

Abstract translation: 一种双层磁记录介质，包括具有前侧和后侧的非磁性基板，在前侧形成的下支撑层和形成在下层上的磁上记录层，其中磁层包含体积 浓度至少约35％的具有至少约2000奥斯特（Oe）的矫顽力的磁性金属颗粒颜料和用于颜料的粘合剂体系。 磁记录介质的取向比大于2.0，脉冲宽度（PW50）值小于约500nm，剩磁厚度乘积Mr * t小于约5.0 memu / cm 2。

公开(公告)号：US20040228020A1

公开(公告)日：2004-11-18

申请号：US10439579

申请日：2003-05-16

Applicant: Imation Corp.

Inventor： Richard W. Molstad ,  Alan R. Olson

IPC: G11B005/09 ,  G11B005/584

CPC classification number: G11B5/584 ,  G11B5/00813

Abstract: The invention is directed to servo techniques that make use of sequences of servo marks, rather than individual marks for generation of position error signals. In particular, random or pseudo-random sequences of servo marks may be recorded on the medium in an overlapping fashion. For example, a first sequence of marks and a second sequence of marks may overlap in the servo track. The second sequence may be substantially non-correlated with the first sequence, and may be recorded in an offset location along the track relative to the first sequence. Different correlators can be used to detect the different sequences, and position error signals can be generated based on timings associated with the detection of the first sequence relative to the second sequence.

Abstract translation: 本发明涉及使用伺服标记序列而不是用于产生位置误差信号的单独标记的伺服技术。 特别地，伺服标记的随机或伪随机序列可以以重叠的方式记录在介质上。 例如，标记的第一序列和第二序列标记可能在伺服轨道中重叠。 第二序列可以与第一序列基本上不相关，并且可以相对于第一序列沿着轨道记录在偏移位置。 可以使用不同的相关器来检测不同的序列，并且可以基于与第一序列相对于第二序列的检测相关联的定时来生成位置误差信号。

公开(公告)号：US20040156297A1

公开(公告)日：2004-08-12

申请号：US10359877

申请日：2003-02-07

Applicant: Imation Corp.

Inventor： Jathan D. Edwards

IPC: G11B007/00

CPC classification number: G03H1/0465 ,  G02B5/32 ,  G03H1/0256 ,  G03H1/04 ,  G03H1/16 ,  G11B5/00 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/0065 ,  G11B7/007

Abstract: The invention is directed to self-referenced holographic recording techniques that make use of an element of a holographic medium to create a reference beam from a zero frequency Fourier component of a data encoded object beam. In other words, the self-referencing element may be formed on the holographic medium, rather then being a separate element of the holographic recording system. The element may comprise a diffusive element on the medium, designed to create a reference beam having controlled angles, phase and/or amplitude.

Abstract translation: 本发明涉及使用全息介质的元件从数据编码对象光束的零频率傅立叶分量创建参考光束的自参照全息记录技术。 换句话说，自参考元件可以形成在全息介质上，而不是作为全息记录系统的单独元件。 元件可以包括在介质上的扩散元件，设计成产生具有受控角度，相位和/或幅度的参考光束。

公开(公告)号：US20040098244A1

公开(公告)日：2004-05-20

申请号：US10294514

申请日：2002-11-14

Applicant: Imation Corp.

Inventor： Clark C. Dailey ,  Yung Yip

IPC: G06F009/455

CPC classification number: G06F3/0665 ,  G06F3/0607 ,  G06F3/0613 ,  G06F3/0676 ,  G06F3/0679 ,  G11B23/049

Abstract: A system is described including a data tape cartridge carrying a non-tape storage medium, and a tape drive emulator that receives the data tape cartridge and stores data on the medium in a format that emulates a tape storage format. The tape drive emulator sequentially records the data within the logical storage areas of the non-tape storage medium, and maintains a library of tape marks on the storage medium to indicate locations within the stored data files. The library of tape marks may indicate, for example, file marks, sequential file marks, block marks, and other demarcations within the stored data. The tape drive emulator makes use of the library of tape marks to access the non-tape storage medium in response to tape access commands from a host computing devices.

Abstract translation: 描述了包括携带非磁带存储介质的数据磁带盒的系统，以及磁带驱动器仿真器，其接收数据磁带盒并以仿效磁带存储格式的格式将数据存储在介质上。 磁带驱动器仿真器顺序地将数据记录在非磁带存储介质的逻辑存储区域内，并在存储介质上维护磁带库，以指示存储的数据文件内的位置。 磁带标记库可以指示例如存储的数据中的文件标记，顺序文件标记，块标记和其他分界。 磁带驱动器仿真器利用磁带标记库来响应来自主机计算设备的磁带访问命令来访问非磁带存储介质。

公开(公告)号：US20040095674A1

公开(公告)日：2004-05-20

申请号：US10295805

申请日：2002-11-15

Applicant: Imation Corp.

Inventor： Yung Yip ,  Saeed A. Fahimi

IPC: G11B005/187

CPC classification number: G11B5/00821 ,  G11B5/187

Abstract: The invention is directed to a non-rotating head used in linear scanning of linear magnetic tape. For example, the head may include a non-rotating contoured surface shaped to facilitate flyability of linear magnetic tape passing over the non-rotating contoured surface. A contact area defining a magnetic gap may protrude from the surface. The contact area that projects from the surface can contact the magnetic tape to read data from the tape and/or write data to the tape as the tape flies over the surface.

Abstract translation: 本发明涉及一种用于线性磁带线性扫描的非旋转头。 例如，头可以包括非旋转轮廓表面，其形状以便于通过非转动轮廓表面的线性磁带的可飞行性。 限定磁隙的接触区域可能从表面突出。 从表面突出的接触区域可以与磁带接触，以便当磁带飞过表面时，从磁带读取数据和/或将数据写入磁带。

公开(公告)号：US20040080847A1

公开(公告)日：2004-04-29

申请号：US10283401

申请日：2002-10-29

Applicant: Imation Corp.

Inventor： Garry R. Lundstrom

IPC: G11B005/09

CPC classification number: B82Y10/00 ,  G11B5/02 ,  G11B5/09 ,  G11B5/74 ,  G11B5/743 ,  G11B5/82 ,  G11B5/86

Abstract: The invention is directed to patterned magnetic media for use in magnetic recording and data storage, and various conditioning techniques that can be used to magnetically condition the patterns. For example, a medium can be formed to exhibit a pattern of surface variations defined by patterned areas and non-patterned areas. Techniques are described for magnetically conditioning the patterned areas. The techniques may be useful for perpendicular patterned media, i.e., media having patterns formed on the media surface and having a magnetic anisotropy that is perpendicular to the plane of the medium. In particular, perpendicular magnetic anisotropy has been found to be an important factor that allows effective conditioning of patterned features having relatively small widths.

Abstract translation: 本发明涉及用于磁记录和数据存储的图案化磁介质，以及可用于磁性调节图案的各种调理技术。 例如，可以形成介质以呈现由图案区域和非图案化区域限定的表面变化的图案。 描述了用于对图案化区域进行磁性调节的技术。 这些技术可能对垂直图案化介质有用，即介质具有在介质表面上形成的图案，并具有垂直于介质平面的磁各向异性。 特别地，已经发现垂直磁各向异性是允许有效调节具有相对较小宽度的图案特征的重要因素。

公开(公告)号：US20040072030A1

公开(公告)日：2004-04-15

申请号：US10263378

申请日：2002-10-01

Applicant: Imation Corp. ,  Quantegy, Inc.

Inventor： David C. Lowery ,  Ryosuke Isobe

IPC: G11B005/66

CPC classification number: G11B5/84 ,  G11B5/70 ,  G11B5/7022 ,  G11B5/735 ,  G11B5/738 ,  Y10S428/90 ,  Y10T428/257 ,  Y10T428/2991

Abstract: A magnetic recording medium including a non-magnetic substrate, a back coat, a lower layer, and a magnetic upper layer. The substrate defines a front side and back side, with the back coat being formed on the back side. The lower layer is disposed over the front side of the substrate and includes a primary powder material and conductive carbon black material dispersed in a binder. The primary lower layer powder material comprises particles having a coercivity of less than 300 Oe coated with an electroconductive material. The magnetic upper layer is disposed over the lower layer and includes a magnetic powder dispersed in a binder.

公开(公告)号：US20040050430A1

公开(公告)日：2004-03-18

申请号：US10246511

申请日：2002-09-18

Applicant: Imation Corp.

Inventor： Mark Serafin ,  Neal K. Nelson ,  Stanley R. Ellis

IPC: F16K011/20

CPC classification number: B01F3/1207 ,  B01F5/0256 ,  B01F5/0262 ,  B01F15/00019 ,  B01F2215/0431 ,  B01F2215/0468 ,  Y10T137/87652 ,  Y10T137/87676

Abstract: The invention is directed to a high pressure fluid processing device for shearing particles in a fluid mixture. The fluid processing device makes use of annular flow paths. For example, a fluid mixture can be separated into two flow paths which are introduced to first and second annular flow paths on opposite sides of a flow path cylinder. The two annular flow paths flow toward one another through the cylinder, and meet one another within the cylinder. An outlet extends through the cylinder where the two annular flow paths collide allowing the fluid mixture flowing down the annular flow paths to be expelled through the gap.

Abstract translation: 本发明涉及用于在流体混合物中剪切颗粒的高压流体处理装置。 流体处理装置利用环形流路。 例如，流体混合物可以被分离成两个流动路径，其被引入到流路筒的相对侧上的第一和第二环形流动路径。 两个环形流动路径通过气缸彼此流动，并在气缸内彼此相遇。 出口延伸穿过气缸，其中两个环形流动路径相撞，允许沿着环形流动路径流动的流体混合物通过间隙排出。

公开(公告)号：US20040002008A1

公开(公告)日：2004-01-01

申请号：US10186378

申请日：2002-06-27

Applicant: Imation Corp.

Inventor： Ramon F. Hegel ,  Stanley C. Busman

IPC: G11B007/24 ,  G03H001/02 ,  G03F007/004 ,  G03F007/09

CPC classification number: G03F7/035 ,  G03F7/001 ,  G03F7/027 ,  G03H2250/37 ,  G03H2260/12

Abstract: Holographic data storage media having a sandwiched construction are described in which a holographic recording material is sandwiched between two substrates. A variety of different formulations of the holographic recording material are also described. By improving the formulation of the photosensitive material, holographic media can be improved.

Abstract translation: 描述了具有夹层构造的全息数据存储介质，其中全息记录材料夹在两个基板之间。 还描述了全息记录材料的各种不同配方。 通过改善感光材料的配方，可以改善全息介质。

公开(公告)号：US20030151853A1

公开(公告)日：2003-08-14

申请号：US10073802

申请日：2002-02-11

Applicant: Imation Corp.

Inventor： Saeed A. Fahimi ,  Richard E. Jewett ,  Allan R. Markert ,  Durkee B. Richards

IPC: G11B003/00

CPC classification number: G11B23/502 ,  Y10S15/13

Abstract: A system and method for cleaning a tape media, such as a magnetic tape. The system preferably includes first and second cleaning heads. The first cleaning head has a plurality of spaced ridges defining a curved, tape-receiving face. The second cleaning head has including a plurality of lands spaced by shallow cavities configured to establish a sub-ambient condition. During use, a tape is transversed over the first cleaning head, with contact at leading edges formed by the ridges removing relatively large and loose particles. Relative to the second cleaning head, the tape partially wraps about a leading corner of the lands, due to the sub-ambient condition within the shallow cavities, facilitating removal of small, tacky debris. Processing by the cleaning heads simulates multiple passes over a magnetic head, thereby stabilizing magnetic tape. In alternative embodiments, the system includes only one of the first or second cleaning heads.

Abstract translation: 一种清洁磁带介质（如磁带）的系统和方法。 该系统优选地包括第一和第二清洁头。 第一清洁头具有限定弯曲的带接收面的多个间隔的脊。 第二清洁头包括多个用浅构造的间隔开的凸起部分，用于建立次环境条件。 在使用过程中，带子横过第一清洁头，在由脊形成的前缘处的接触件移除相对较大和松散的颗粒。 相对于第二清洁头，由于在浅空腔内的低于环境的条件，胶带部分地卷绕在焊盘的前角上，便于去除小的粘性碎屑。 清洁头的处理模拟磁头上的多次通过，从而稳定磁带。 在替代实施例中，系统仅包括第一或第二清洁头中的一个。